Christian S. Jensen

Orcid: 0000-0002-9697-7670

Affiliations:
  • Aalborg University, Denmark
  • Aarhus University, Denmark (former)


According to our database1, Christian S. Jensen authored at least 597 papers between 1991 and 2024.

Collaborative distances:

Awards

ACM Fellow

ACM Fellow 2011, "For contributions to temporal and spatio-temporal data management.".

Timeline

Legend:

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Links

Online presence:

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Bibliography

2024
Task Assignment With Efficient Federated Preference Learning in Spatial Crowdsourcing.
IEEE Trans. Knowl. Data Eng., April, 2024

Coalition-based task assignment with priority-aware fairness in spatial crowdsourcing.
VLDB J., January, 2024

EEG-Based Multimodal Emotion Recognition: A Machine Learning Perspective.
IEEE Trans. Instrum. Meas., 2024

TFB: Towards Comprehensive and Fair Benchmarking of Time Series Forecasting Methods.
CoRR, 2024

Graph Augmentation for Recommendation.
CoRR, 2024

E2USD: Efficient-yet-effective Unsupervised State Detection for Multivariate Time Series.
CoRR, 2024

Disentangling Imperfect: A Wavelet-Infused Multilevel Heterogeneous Network for Human Activity Recognition in Flawed Wearable Sensor Data.
CoRR, 2024

GTM: General Trajectory Modeling with Auto-regressive Generation of Feature Domains.
CoRR, 2024

2023
Stochastic Routing with Arrival Windows.
ACM Trans. Spatial Algorithms Syst., December, 2023

VeriDKG: A Verifiable SPARQL Query Engine for Decentralized Knowledge Graphs.
Proc. VLDB Endow., December, 2023

Weakly Guided Adaptation for Robust Time Series Forecasting.
Proc. VLDB Endow., December, 2023

ADGNN: Towards Scalable GNN Training with Aggregation-Difference Aware Sampling.
Proc. ACM Manag. Data, December, 2023

Missing Value Imputation for Multi-attribute Sensor Data Streams via Message Propagation.
Proc. VLDB Endow., November, 2023

Preference-Aware Group Task Assignment in Spatial Crowdsourcing: Effectiveness and Efficiency.
IEEE Trans. Knowl. Data Eng., October, 2023

Origin-Destination Travel Time Oracle for Map-based Services.
Proc. ACM Manag. Data, September, 2023

Profit Optimization in Spatial Crowdsourcing: Effectiveness and Efficiency.
IEEE Trans. Knowl. Data Eng., August, 2023

Maximizing the influence of bichromatic reverse k nearest neighbors in geo-social networks.
World Wide Web (WWW), July, 2023

Efficient Retrieval of the Top-$k$k Most Relevant Event-Partner Pairs.
IEEE Trans. Knowl. Data Eng., March, 2023

SOUP: Spatial-Temporal Demand Forecasting and Competitive Supply in Transportation.
IEEE Trans. Knowl. Data Eng., 2023

DecLog: Decentralized Logging in Non-Volatile Memory for Time Series Database Systems.
Proc. VLDB Endow., 2023

FARGO: Fast Maximum Inner Product Search via Global Multi-Probing.
Proc. VLDB Endow., 2023

AutoCTS+: Joint Neural Architecture and Hyperparameter Search for Correlated Time Series Forecasting.
Proc. ACM Manag. Data, 2023

Ghost: A General Framework for High-Performance Online Similarity Queries over Distributed Trajectory Streams.
Proc. ACM Manag. Data, 2023

LightTS: Lightweight Time Series Classification with Adaptive Ensemble Distillation.
Proc. ACM Manag. Data, 2023

LightCTS: A Lightweight Framework for Correlated Time Series Forecasting.
Proc. ACM Manag. Data, 2023

Spatial Data Quality in the Internet of Things: Management, Exploitation, and Prospects.
ACM Comput. Surv., 2023

Indexing Metric Spaces for Exact Similarity Search.
ACM Comput. Surv., 2023

Learning Time-aware Graph Structures for Spatially Correlated Time Series Forecasting.
CoRR, 2023

Efficient Cost Modeling of Space-filling Curves.
CoRR, 2023

Collectively Simplifying Trajectories in a Database: A Query Accuracy Driven Approach.
CoRR, 2023

Missing Value Imputation for Multi-attribute Sensor Data Streams via Message Propagation (Extended Version).
CoRR, 2023

Trajectory Similarity Measurement: An Efficiency Perspective.
CoRR, 2023

Exploring Progress in Multivariate Time Series Forecasting: Comprehensive Benchmarking and Heterogeneity Analysis.
CoRR, 2023

Towards Mobility Data Science (Vision Paper).
CoRR, 2023

CHGNN: A Semi-Supervised Contrastive Hypergraph Learning Network.
CoRR, 2023

Data Imputation for Sparse Radio Maps in Indoor Positioning (Extended Version).
CoRR, 2023

LightTS: Lightweight Time Series Classification with Adaptive Ensemble Distillation - Extended Version.
CoRR, 2023

RHB-Net: A Relation-aware Historical Bridging Network for Text2SQL Auto-Completion.
Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2023

LightPath: Lightweight and Scalable Path Representation Learning.
Proceedings of the 29th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, 2023

Learned Probing Cardinality Estimation for High-Dimensional Approximate NN Search.
Proceedings of the 39th IEEE International Conference on Data Engineering, 2023

Reinforcement Learning based Tree Decomposition for Distance Querying in Road Networks.
Proceedings of the 39th IEEE International Conference on Data Engineering, 2023

Efficiently Learning Spatial Indices.
Proceedings of the 39th IEEE International Conference on Data Engineering, 2023

Data Imputation for Sparse Radio Maps in Indoor Positioning.
Proceedings of the 39th IEEE International Conference on Data Engineering, 2023

A Re-evaluation of Deep Learning Methods for Attributed Graph Clustering.
Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, 2023

2022
Pivot selection algorithms in metric spaces: a survey and experimental study.
VLDB J., 2022

PM-LSH: a fast and accurate in-memory framework for high-dimensional approximate NN and closest pair search.
VLDB J., 2022

Leveraging range joins for the computation of overlap joins.
VLDB J., 2022

UniTE - The Best of Both Worlds: Unifying Function-fitting and Aggregation-based Approaches to Travel Time and Travel Speed Estimation.
ACM Trans. Spatial Algorithms Syst., 2022

Density-Based Top-K Spatial Textual Clusters Retrieval.
IEEE Trans. Knowl. Data Eng., 2022

Efficient Distributed Clustering Algorithms on Star-Schema Heterogeneous Graphs.
IEEE Trans. Knowl. Data Eng., 2022

Relational Fusion Networks: Graph Convolutional Networks for Road Networks.
IEEE Trans. Intell. Transp. Syst., 2022

Decoupled Dynamic Spatial-Temporal Graph Neural Network for Traffic Forecasting.
Proc. VLDB Endow., 2022

Efficient and Error-bounded Spatiotemporal Quantile Monitoring in Edge Computing Environments.
Proc. VLDB Endow., 2022

Speeding Up Reachability Queries in Public Transport Networks Using Graph Partitioning.
Inf. Syst. Frontiers, 2022

Mobility Data Science (Dagstuhl Seminar 22021).
Dagstuhl Reports, 2022

A Pattern Discovery Approach to Multivariate Time Series Forecasting.
CoRR, 2022

Joint Neural Architecture and Hyperparameter Search for Correlated Time Series Forecasting.
CoRR, 2022

A Comparative Study on Unsupervised Anomaly Detection for Time Series: Experiments and Analysis.
CoRR, 2022

Design Automation for Fast, Lightweight, and Effective Deep Learning Models: A Survey.
CoRR, 2022

Maximizing the Influence of Bichromatic Reverse k Nearest Neighbors in Geo-Social Networks.
CoRR, 2022

Robust and Explainable Autoencoders for Unsupervised Time Series Outlier Detection - Extended Version.
CoRR, 2022

Weakly-supervised Temporal Path Representation Learning with Contrastive Curriculum Learning - Extended Version.
CoRR, 2022

Influence-aware Task Assignment in Spatial Crowdsourcing (Technical Report).
CoRR, 2022

Outlier Detection for Streaming Task Assignment in Crowdsourcing.
Proceedings of the WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25, 2022

Digitalization in the Service of Society: The Case of Big Vehicle Trajectory Data.
Proceedings of the SSDBM 2022: 34th International Conference on Scientific and Statistical Database Management, Copenhagen, Denmark, July 6, 2022

Spatial Data Quality in the IoT Era: Management and Exploitation.
Proceedings of the SIGMOD '22: International Conference on Management of Data, Philadelphia, PA, USA, June 12, 2022

Spatio-Temporal Trajectory Similarity Learning in Road Networks.
Proceedings of the KDD '22: The 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Washington, DC, USA, August 14, 2022

Workload-Aware Shortest Path Distance Querying in Road Networks.
Proceedings of the 38th IEEE International Conference on Data Engineering, 2022

Weakly-supervised Temporal Path Representation Learning with Contrastive Curriculum Learning.
Proceedings of the 38th IEEE International Conference on Data Engineering, 2022

Evolutionary Clustering of Moving Objects.
Proceedings of the 38th IEEE International Conference on Data Engineering, 2022

Robust and Explainable Autoencoders for Unsupervised Time Series Outlier Detection.
Proceedings of the 38th IEEE International Conference on Data Engineering, 2022

Anomaly Detection in Time Series with Robust Variational Quasi-Recurrent Autoencoders.
Proceedings of the 38th IEEE International Conference on Data Engineering, 2022

Influence-aware Task Assignment in Spatial Crowdsourcing.
Proceedings of the 38th IEEE International Conference on Data Engineering, 2022

2021
Dragoon: a hybrid and efficient big trajectory management system for offline and online analytics.
VLDB J., 2021

Location- and keyword-based querying of geo-textual data: a survey.
VLDB J., 2021

Statistical Inference of Diffusion Networks.
IEEE Trans. Knowl. Data Eng., 2021

SpeakNav: Voice-based Route Description Language Understanding for Template Driven Path Search.
Proc. VLDB Endow., 2021

AutoCTS: Automated Correlated Time Series Forecasting.
Proc. VLDB Endow., 2021

TRACE: Real-time Compression of Streaming Trajectories in Road Networks.
Proc. VLDB Endow., 2021

Unsupervised Time Series Outlier Detection with Diversity-Driven Convolutional Ensembles.
Proc. VLDB Endow., 2021

AutoCTS: Automated Correlated Time Series Forecasting - Extended Version.
CoRR, 2021

ST2Vec: Spatio-Temporal Trajectory Similarity Learning in Road Networks.
CoRR, 2021

Unsupervised Time Series Outlier Detection with Diversity-Driven Convolutional Ensembles - Extended Version.
CoRR, 2021

Evolutionary Clustering of Streaming Trajectories.
CoRR, 2021

REPOSE: Distributed Top-k Trajectory Similarity Search with Local Reference Point Tries.
CoRR, 2021

REPOSE: Distributed Top-k Trajectory Similarity Search with Local Reference Point Tries.
Proceedings of the 37th IEEE International Conference on Data Engineering, 2021

Fairness-aware Task Assignment in Spatial Crowdsourcing: Game-Theoretic Approaches.
Proceedings of the 37th IEEE International Conference on Data Engineering, 2021

SOUP: A Fleet Management System for Passenger Demand Prediction and Competitive Taxi Supply.
Proceedings of the 37th IEEE International Conference on Data Engineering, 2021

SpeakNav: A Voice-based Navigation System via Route Description Language Understanding.
Proceedings of the 37th IEEE International Conference on Data Engineering, 2021

PolyFit: Polynomial-based Indexing Approach for Fast Approximate Range Aggregate Queries.
Proceedings of the 24th International Conference on Extending Database Technology, 2021

2020
Efficient targeted influence minimization in big social networks.
World Wide Web, 2020

Fast stochastic routing under time-varying uncertainty.
VLDB J., 2020

Context-aware, preference-based vehicle routing.
VLDB J., 2020

Top-k term publish/subscribe for geo-textual data streams.
VLDB J., 2020

Answering Why-Not Group Spatial Keyword Queries.
IEEE Trans. Knowl. Data Eng., 2020

PM-LSH: A Fast and Accurate LSH Framework for High-Dimensional Approximate NN Search.
Proc. VLDB Endow., 2020

Effectively Learning Spatial Indices.
Proc. VLDB Endow., 2020

Anytime Stochastic Routing with Hybrid Learning.
Proc. VLDB Endow., 2020

Compression of Uncertain Trajectories in Road Networks.
Proc. VLDB Endow., 2020

Introduction to Spatio-temporal data management and analytics for Smart City research.
GeoInformatica, 2020

Spatial-Temporal Demand Forecasting and Competitive Supply via Graph Convolutional Networks.
CoRR, 2020

Indexing Metric Spaces for Exact Similarity Search.
CoRR, 2020

CoMing: A Real-time Co-Movement Mining System for Streaming Trajectories.
Proceedings of the 2020 International Conference on Management of Data, 2020

Online Trichromatic Pickup and Delivery Scheduling in Spatial Crowdsourcing.
Proceedings of the 36th IEEE International Conference on Data Engineering, 2020

Adaptive Top-k Overlap Set Similarity Joins.
Proceedings of the 36th IEEE International Conference on Data Engineering, 2020

A Hybrid Learning Approach to Stochastic Routing.
Proceedings of the 36th IEEE International Conference on Data Engineering, 2020

Efficient Attribute-Constrained Co-Located Community Search.
Proceedings of the 36th IEEE International Conference on Data Engineering, 2020

Stochastic Origin-Destination Matrix Forecasting Using Dual-Stage Graph Convolutional, Recurrent Neural Networks.
Proceedings of the 36th IEEE International Conference on Data Engineering, 2020

Parallel Semantic Trajectory Similarity Join.
Proceedings of the 36th IEEE International Conference on Data Engineering, 2020

Semantic Region Retrieval from Spatial RDF Data.
Proceedings of the Database Systems for Advanced Applications, 2020

An Efficient Index for Reachability Queries in Public Transport Networks.
Proceedings of the Advances in Databases and Information Systems, 2020

2019
Spatio-Textual Data.
Proceedings of the Encyclopedia of Big Data Technologies., 2019

Efficient distributed reachability querying of massive temporal graphs.
VLDB J., 2019

Parallel Trajectory-to-Location Join.
IEEE Trans. Knowl. Data Eng., 2019

IHCS: An Integrated Hybrid Cleaning System.
Proc. VLDB Endow., 2019

Finding Attribute-Aware Similar Region for Data Analysis.
Proc. VLDB Endow., 2019

Real-time Distributed Co-Movement Pattern Detection on Streaming Trajectories.
Proc. VLDB Endow., 2019

On spatio-temporal blockchain query processing.
Future Gener. Comput. Syst., 2019

Letter from the Impact Award Winner.
IEEE Data Eng. Bull., 2019

Value Creation from Massive Data in Transportation ? The Case of Vehicle Routing.
IEEE Data Eng. Bull., 2019

On Network Embedding for Machine Learning on Road Networks: A Case Study on the Danish Road Network.
CoRR, 2019

Analyzing Trajectories Using a Path-based API.
Proceedings of the 16th International Symposium on Spatial and Temporal Databases, 2019

Effective and Efficient Reuse of Past Travel Behavior for Route Recommendation.
Proceedings of the 25th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining, 2019

Outlier Detection for Time Series with Recurrent Autoencoder Ensembles.
Proceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence, 2019

Answering Why-Not Group Spatial Keyword Queries (Extended Abstract).
Proceedings of the 35th IEEE International Conference on Data Engineering, 2019

Multicapacity Facility Selection in Networks.
Proceedings of the 35th IEEE International Conference on Data Engineering, 2019

Stochastic Weight Completion for Road Networks Using Graph Convolutional Networks.
Proceedings of the 35th IEEE International Conference on Data Engineering, 2019

Efficient and Incremental Clustering Algorithms on Star-Schema Heterogeneous Graphs.
Proceedings of the 35th IEEE International Conference on Data Engineering, 2019

A NUMA-aware Trajectory Store for Travel-Time Estimation.
Proceedings of the 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2019

Graph Convolutional Networks for Road Networks.
Proceedings of the 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2019

Indexing Trajectories for Travel-Time Histogram Retrieval.
Proceedings of the Advances in Database Technology, 2019

In Good Company: Efficient Retrieval of the Top-k Most Relevant Event-Partner Pairs.
Proceedings of the Database Systems for Advanced Applications, 2019

Efficiently Mining Maximal Diverse Frequent Itemsets.
Proceedings of the Database Systems for Advanced Applications, 2019

2018
Indexing of the Current and Near-Future Positions of Moving Objects.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Map Matching.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Variable Time Span.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Valid Time.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

User-Defined Time.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Transaction Time.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Timeslice Operator.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Time Span.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Time Interval.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Time Instant.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Specialization.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Query Languages.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Projection.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Homogeneity.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Generalization.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Expression.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Element.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Database.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Data Models.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Snapshot Equivalence.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Relative Time.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

History in Temporal Databases.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Forever.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Fixed Time Span.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Calendar.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Bitemporal Relation.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Bitemporal Interval.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Weak Equivalence.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Applicability Period.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Absolute Time.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Lifespan.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Aggregation.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Now in Temporal Databases.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Calendric System.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Temporal Compatibility.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Nonsequenced Semantics.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Current Semantics.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Sequenced Semantics.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

SQL-Based Temporal Query Languages.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

PACE: a PAth-CEntric paradigm for stochastic path finding.
VLDB J., 2018

Parallel trajectory similarity joins in spatial networks.
VLDB J., 2018

Risk-aware path selection with time-varying, uncertain travel costs: a time series approach.
VLDB J., 2018

Editorial: Updates to the Editorial Board.
ACM Trans. Database Syst., 2018

Towards Why-Not Spatial Keyword Top-k Queries: A Direction-Aware Approach.
IEEE Trans. Knowl. Data Eng., 2018

UlTraMan: A Unified Platform for Big Trajectory Data Management and Analytics.
Proc. VLDB Endow., 2018

PTRider: A Price-and-Time-Aware Ridesharing System.
Proc. VLDB Endow., 2018

Continuous Spatial Query Processing: A Survey of Safe Region Based Techniques.
ACM Comput. Surv., 2018

Recurrent Multi-Graph Neural Networks for Travel Cost Prediction.
CoRR, 2018

Learning to Route with Sparse Trajectory Sets - Extended Version.
CoRR, 2018

Database Technology for Processing Temporal Data (Invited Paper).
Proceedings of the 25th International Symposium on Temporal Representation and Reasoning, 2018

Targeted Influence Minimization in Social Networks.
Proceedings of the Advances in Knowledge Discovery and Data Mining, 2018

Adaptive Travel-Time Estimation: A Case for Custom Predicate Selection.
Proceedings of the 19th IEEE International Conference on Mobile Data Management, 2018

Outlier Detection for Multidimensional Time Series Using Deep Neural Networks.
Proceedings of the 19th IEEE International Conference on Mobile Data Management, 2018

VIPTRA: Visualization and Interactive Processing on Big Trajectory Data.
Proceedings of the 19th IEEE International Conference on Mobile Data Management, 2018

Extracting Rankings for Spatial Keyword Queries from GPS Data.
Proceedings of the Progress in Location Based Services 2018, 2018

iZone: Efficient Influence Zone Evaluation over Geo-Textual Data.
Proceedings of the 34th IEEE International Conference on Data Engineering, 2018

Deep Representation Learning for Trajectory Similarity Computation.
Proceedings of the 34th IEEE International Conference on Data Engineering, 2018

Learning to Route with Sparse Trajectory Sets.
Proceedings of the 34th IEEE International Conference on Data Engineering, 2018

Price-and-Time-Aware Dynamic Ridesharing.
Proceedings of the 34th IEEE International Conference on Data Engineering, 2018

Location-Aware Top-k Term Publish/Subscribe.
Proceedings of the 34th IEEE International Conference on Data Engineering, 2018

Distinguishing Trajectories from Different Drivers using Incompletely Labeled Trajectories.
Proceedings of the 27th ACM International Conference on Information and Knowledge Management, 2018

On Network Embedding for Machine Learning on Road Networks: A Case Study on the Danish Road Network.
Proceedings of the IEEE International Conference on Big Data (IEEE BigData 2018), 2018

2017
Spatiotemporal Database Modeling with an Extended Entity-Relationship Model.
Proceedings of the Encyclopedia of GIS., 2017

Road Network Data Model.
Proceedings of the Encyclopedia of GIS., 2017

Maximum Update Interval in Moving Objects Databases.
Proceedings of the Encyclopedia of GIS., 2017

Indexing of Moving Objects, B<sup>x</sup>-Tree.
Proceedings of the Encyclopedia of GIS., 2017

Indexing metric uncertain data for range queries and range joins.
VLDB J., 2017

Finding lowest-cost paths in settings with safe and preferred zones.
VLDB J., 2017

Searching Trajectories by Regions of Interest.
IEEE Trans. Knowl. Data Eng., 2017

Efficient Metric Indexing for Similarity Search and Similarity Joins.
IEEE Trans. Knowl. Data Eng., 2017

Updates to the TODS Editorial Board.
SIGMOD Rec., 2017

Trajectory Similarity Join in Spatial Networks.
Proc. VLDB Endow., 2017

Clue-based Spatio-textual Query.
Proc. VLDB Endow., 2017

Pivot-based Metric Indexing.
Proc. VLDB Endow., 2017

UFace: Your Universal Password That No One Can See.
IACR Cryptol. ePrint Arch., 2017

Enabling time-dependent uncertain eco-weights for road networks.
GeoInformatica, 2017

SWOOP: Top-k Similarity Joins over Set Streams.
CoRR, 2017

Manycore GPU processing of repeated range queries over streams of moving objects observations.
Concurr. Comput. Pract. Exp., 2017

Extracting visited points of interest from vehicle trajectories.
Proceedings of the Fourth International ACM Workshop on Managing and Mining Enriched Geo-Spatial Data, 2017

Assessing the Accuracy Benefits of On-the-Fly Trajectory Selection in Fine-Grained Travel-Time Estimation.
Proceedings of the 18th IEEE International Conference on Mobile Data Management, 2017

Crowdsourcing Based Evaluation of Ranking Approaches for Spatial Keyword Querying.
Proceedings of the 18th IEEE International Conference on Mobile Data Management, 2017

Reverse Top-k Geo-Social Keyword Queries in Road Networks.
Proceedings of the 33rd IEEE International Conference on Data Engineering, 2017

Reverse Keyword-Based Location Search.
Proceedings of the 33rd IEEE International Conference on Data Engineering, 2017

Direction-Aware Why-Not Spatial Keyword Top-k Queries.
Proceedings of the 33rd IEEE International Conference on Data Engineering, 2017

Interactive Intersection Analysis using Trajectory Data.
Proceedings of the 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2017

In-Memory Spatial Join: The Data Matters!
Proceedings of the 20th International Conference on Extending Database Technology, 2017

Temporal Data Management - An Overview.
Proceedings of the Business Intelligence and Big Data - 7th European Summer School, 2017

2016
Elite: an elastic infrastructure for big spatiotemporal trajectories.
VLDB J., 2016

Read/write-optimized tree indexing for solid-state drives.
VLDB J., 2016

Editorial: The Dark Citations of TODS Papers and What to Do about It - or: Cite the Journal Paper.
ACM Trans. Database Syst., 2016

Extending the Kernel of a Relational DBMS with Comprehensive Support for Sequenced Temporal Queries.
ACM Trans. Database Syst., 2016

Enabling Scalable Geographic Service Sharing with Weighted Imprecise Voronoi Cells.
IEEE Trans. Knowl. Data Eng., 2016

Collective Travel Planning in Spatial Networks.
IEEE Trans. Knowl. Data Eng., 2016

Efficient Online Summarization of Large-Scale Dynamic Networks.
IEEE Trans. Knowl. Data Eng., 2016

The Dark Citations of TODS Papers and What to Do About It: Or: Cite the Journal Paper.
SIGMOD Rec., 2016

Path Cost Distribution Estimation Using Trajectory Data.
Proc. VLDB Endow., 2016

YASK: A Why-Not Question Answering Engine for Spatial Keyword Query Services.
Proc. VLDB Endow., 2016

Querying Geo-Textual Data: Spatial Keyword Queries and Beyond.
Proceedings of the 2016 International Conference on Management of Data, 2016

CrowdRankEval: A Ranking Function Evaluation Framework for Spatial Keyword Queries.
Proceedings of the IEEE 17th International Conference on Mobile Data Management, 2016

FoGBAT: Combining Bluetooth and GPS Data for Better Traffic Analytics.
Proceedings of the IEEE 17th International Conference on Mobile Data Management, 2016

Answering why-not spatial keyword top-k queries via keyword adaption.
Proceedings of the 32nd IEEE International Conference on Data Engineering, 2016

Answering why-not questions on metric probabilistic range queries.
Proceedings of the 32nd IEEE International Conference on Data Engineering, 2016

Efficient in-memory indexing of network-constrained trajectories.
Proceedings of the 24th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, GIS 2016, Burlingame, California, USA, October 31, 2016

Finding non-dominated paths in uncertain road networks.
Proceedings of the 24th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, GIS 2016, Burlingame, California, USA, October 31, 2016

Finding Frequently Visited Indoor POIs Using Symbolic Indoor Tracking Data.
Proceedings of the 19th International Conference on Extending Database Technology, 2016

Effective Similarity Search on Indoor Moving-Object Trajectories.
Proceedings of the Database Systems for Advanced Applications, 2016

A Density-Based Approach to the Retrieval of Top-K Spatial Textual Clusters.
Proceedings of the 25th ACM International Conference on Information and Knowledge Management, 2016

2015
Finding top-<i>k</i> relevant groups of spatial web objects.
VLDB J., 2015

Toward personalized, context-aware routing.
VLDB J., 2015

Editorial: The Best of Two Worlds - Present Your TODS Paper at SIGMOD.
ACM Trans. Database Syst., 2015

Efficient Processing of Spatial Group Keyword Queries.
ACM Trans. Database Syst., 2015

Authentication of Moving Top-k Spatial Keyword Queries.
IEEE Trans. Knowl. Data Eng., 2015

Discovery of Path Nearby Clusters in Spatial Networks.
IEEE Trans. Knowl. Data Eng., 2015

Guest editorial: Special section on the international conference on data engineering.
IEEE Trans. Knowl. Data Eng., 2015

The Best of Two Worlds: Present Your TODS Paper at SIGMOD.
SIGMOD Rec., 2015

Changes to the TODS Editorial Board.
SIGMOD Rec., 2015

New Lower and Upper Bounds for Shortest Distance Queries on Terrains.
Proc. VLDB Endow., 2015

I2RS: A Distributed Geo-Textual Image Retrieval and Recommendation System.
Proc. VLDB Endow., 2015

HAG: An Energy-Proportional Data Storage Scheme for Disk Array Systems.
J. Comput. Sci. Technol., 2015

EcoMark 2.0: empowering eco-routing with vehicular environmental models and actual vehicle fuel consumption data.
GeoInformatica, 2015

Space-Time Aware Behavioral Topic Modeling for Microblog Posts.
IEEE Data Eng. Bull., 2015

Efficient and Accurate Path Cost Estimation Using Trajectory Data.
CoRR, 2015

Cloud Engineering [Guest editors' introduction].
IEEE Cloud Comput., 2015

Indexing Metric Uncertain Data for Range Queries.
Proceedings of the 2015 ACM SIGMOD International Conference on Management of Data, Melbourne, Victoria, Australia, May 31, 2015

A wait-free output data structure for GPU-based streaming query processing.
Proceedings of the 23rd Italian Symposium on Advanced Database Systems, 2015

Querying of Geo-Textual Web Content: Concepts and Techniques.
Proceedings of the 16th IEEE International Conference on Mobile Data Management, 2015

Vehicle Routing with User-Generated Trajectory Data.
Proceedings of the 16th IEEE International Conference on Mobile Data Management, 2015

EcoSky: Reducing vehicular environmental impact through eco-routing.
Proceedings of the 31st IEEE International Conference on Data Engineering, 2015

Answering why-not questions on spatial keyword top-k queries.
Proceedings of the 31st IEEE International Conference on Data Engineering, 2015

Efficient metric indexing for similarity search.
Proceedings of the 31st IEEE International Conference on Data Engineering, 2015

The safest path via safe zones.
Proceedings of the 31st IEEE International Conference on Data Engineering, 2015

Synthesis of partial rankings of points of interest using crowdsourcing.
Proceedings of the 9th Workshop on Geographic Information Retrieval, 2015

2014
Guest editorial: Web technologies and applications.
World Wide Web, 2014

Processing of extreme moving-object update and query workloads in main memory.
VLDB J., 2014

Personalized trajectory matching in spatial networks.
VLDB J., 2014

Foreword to Invited Articles Issue.
ACM Trans. Database Syst., 2014

Editorial.
ACM Trans. Database Syst., 2014

Using Incomplete Information for Complete Weight Annotation of Road Networks.
IEEE Trans. Knowl. Data Eng., 2014

Towards Total Traffic Awareness.
SIGMOD Rec., 2014

Spatial Joins in Main Memory: Implementation Matters!
Proc. VLDB Endow., 2014

Retrieving Regions of Interest for User Exploration.
Proc. VLDB Endow., 2014

Manycore processing of repeated range queries over massive moving objects observations.
CoRR, 2014

Using Cameras to Improve Wi-Fi Based Indoor Positioning.
Proceedings of the Web and Wireless Geographical Information Systems, 2014

Integrating non-spatial preferences into spatial location queries.
Proceedings of the Conference on Scientific and Statistical Database Management, 2014

Enabling Time-Dependent Uncertain Eco-Weights For Road Networks.
Proceedings of Workshop on Managing and Mining Enriched Geo-Spatial Data, 2014

Interestingness-Driven Diffusion Process Summarization in Dynamic Networks.
Proceedings of the Machine Learning and Knowledge Discovery in Databases, 2014

GPU-Based Computing of Repeated Range Queries over Moving Objects.
Proceedings of the 22nd Euromicro International Conference on Parallel, 2014

A Clustering Approach to the Discovery of Points of Interest from Geo-Tagged Microblog Posts.
Proceedings of the IEEE 15th International Conference on Mobile Data Management, 2014

Efficient Top-k Spatial Locality Search for Co-located Spatial Web Objects.
Proceedings of the IEEE 15th International Conference on Mobile Data Management, 2014

Stochastic skyline route planning under time-varying uncertainty.
Proceedings of the IEEE 30th International Conference on Data Engineering, Chicago, 2014

Scalable top-k spatio-temporal term querying.
Proceedings of the IEEE 30th International Conference on Data Engineering, Chicago, 2014

Concise caching of driving instructions.
Proceedings of the 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2014

Top-k point of interest retrieval using standard indexes.
Proceedings of the 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2014

2013
Efficiently adapting graphical models for selectivity estimation.
VLDB J., 2013

Moving spatial keyword queries: Formulation, methods, and analysis.
ACM Trans. Database Syst., 2013

Effective Online Group Discovery in Trajectory Databases.
IEEE Trans. Knowl. Data Eng., 2013

The relational model is dead, SQL is dead, and I don't feel so good myself.
SIGMOD Rec., 2013

Finding Shortest Paths on Terrains by Killing Two Birds with One Stone.
Proc. VLDB Endow., 2013

Spatial Keyword Query Processing: An Experimental Evaluation.
Proc. VLDB Endow., 2013

GroupFinder: A New Approach to Top-K Point-of-Interest Group Retrieval.
Proc. VLDB Endow., 2013

Travel Cost Inference from Sparse, Spatio-Temporally Correlated Time Series Using Markov Models.
Proc. VLDB Endow., 2013

Using Incomplete Information for Complete Weight Annotation of Road Networks - Extended Version.
CoRR, 2013

Spatial keyword querying of geo-tagged web content.
Proceedings of the 7th International Workshop on Ranking in Databases (co-located with VLDB 2013), 2013

Recognising and Interpreting Named Temporal Expressions.
Proceedings of the Recent Advances in Natural Language Processing, 2013

Identifying Typical Movements among Indoor Objects - Concepts and Empirical Study.
Proceedings of the 2013 IEEE 14th International Conference on Mobile Data Management, Milan, Italy, June 3-6, 2013, 2013

Building Accurate 3D Spatial Networks to Enable Next Generation Intelligent Transportation Systems.
Proceedings of the 2013 IEEE 14th International Conference on Mobile Data Management, Milan, Italy, June 3-6, 2013, 2013

Querying the Web with Local Intent.
Proceedings of the 2013 IEEE 14th International Conference on Mobile Data Management, Milan, Italy, June 3-6, 2013, 2013

Routing Service Quality - Local Driver Behavior Versus Routing Services.
Proceedings of the 2013 IEEE 14th International Conference on Mobile Data Management, Milan, Italy, June 3-6, 2013, 2013

Hybrid Indoor Positioning with Wi-Fi and Bluetooth: Architecture and Performance.
Proceedings of the 2013 IEEE 14th International Conference on Mobile Data Management, Milan, Italy, June 3-6, 2013, 2013

EcoTour: Reducing the Environmental Footprint of Vehicles Using Eco-routes.
Proceedings of the 2013 IEEE 14th International Conference on Mobile Data Management, Milan, Italy, June 3-6, 2013, 2013

Towards fully organic indoor positioning.
Proceedings of the Fifth ACM SIGSPATIAL International Workshop On Indoor Spatial Awareness, 2013

Trajectory based optimal segment computation in road network databases.
Proceedings of the 21st SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2013

Towards context-aware search and analysis on social media data.
Proceedings of the Joint 2013 EDBT/ICDT Conferences, 2013

iPark: identifying parking spaces from trajectories.
Proceedings of the Joint 2013 EDBT/ICDT Conferences, 2013

2012
A framework for efficient spatial web object retrieval.
VLDB J., 2012

Approaches to Exploring Category Information for Question Retrieval in Community Question-Answer Archives.
ACM Trans. Inf. Syst., 2012

Outsourced Similarity Search on Metric Data Assets.
IEEE Trans. Knowl. Data Eng., 2012

Joint Top-K Spatial Keyword Query Processing.
IEEE Trans. Knowl. Data Eng., 2012

Highlights from ACM SIGSPATIAL GIS 2011: the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems: (Chicago, Illinois - November 1 - 4, 2011).
ACM SIGSPATIAL Special, 2012

A call for surveys.
SIGMOD Rec., 2012

Data Management on the Spatial Web.
Proc. VLDB Endow., 2012

SWORS: A System for the Efficient Retrieval of Relevant Spatial Web Objects.
Proc. VLDB Endow., 2012

Effective caching of shortest paths for location-based services.
Proceedings of the ACM SIGMOD International Conference on Management of Data, 2012

Parallel main-memory indexing for moving-object query and update workloads.
Proceedings of the ACM SIGMOD International Conference on Management of Data, 2012

Cooperative Scalable Moving Continuous Query Processing.
Proceedings of the 13th IEEE International Conference on Mobile Data Management, 2012

Upgrading Uncompetitive Products Economically.
Proceedings of the IEEE 28th International Conference on Data Engineering (ICDE 2012), 2012

A Foundation for Efficient Indoor Distance-Aware Query Processing.
Proceedings of the IEEE 28th International Conference on Data Engineering (ICDE 2012), 2012

EcoMark: evaluating models of vehicular environmental impact.
Proceedings of the SIGSPATIAL 2012 International Conference on Advances in Geographic Information Systems (formerly known as GIS), 2012

Spatial Keyword Querying.
Proceedings of the Conceptual Modeling, 2012

A comparison of the use of virtual versus physical snapshots for supporting update-intensive workloads.
Proceedings of the Eighth International Workshop on Data Management on New Hardware, 2012

2011
Design and analysis of a ranking approach to private location-based services.
ACM Trans. Database Syst., 2011

Flexible and Efficient Resolution of Skyline Query Size Constraints.
IEEE Trans. Knowl. Data Eng., 2011

ISA 2010 workshop report: the other 87%: a report on The Second International Workshop on Indoor Spatial Awareness (San Jose, California - November 2, 2010).
ACM SIGSPATIAL Special, 2011

Hyper-local, directions-based ranking of places.
Proc. VLDB Endow., 2011

Lightweight Graphical Models for Selectivity Estimation Without Independence Assumptions.
Proc. VLDB Endow., 2011

A MovingObject Index for Efficient Query Processing with Peer-Wise Location Privacy.
Proc. VLDB Endow., 2011

Location-Related Privacy in Geo-Social Networks.
IEEE Internet Comput., 2011

Thread-Level Parallel Indexing of Update Intensive Moving-Object Workloads.
Proceedings of the Advances in Spatial and Temporal Databases, 2011

Collective spatial keyword querying.
Proceedings of the ACM SIGMOD International Conference on Management of Data, 2011

Effective Privacy-Preserving Online Route Planning.
Proceedings of the 12th IEEE International Conference on Mobile Data Management, 2011

Improving Wi-Fi Based Indoor Positioning Using Bluetooth Add-Ons.
Proceedings of the 12th IEEE International Conference on Mobile Data Management, 2011

Efficient continuously moving top-k spatial keyword query processing.
Proceedings of the 27th International Conference on Data Engineering, 2011

Spatio-temporal joins on symbolic indoor tracking data.
Proceedings of the 27th International Conference on Data Engineering, 2011

On the Querying for Places on the Mobile Web.
Proceedings of the Web Technologies and Applications - 13th Asia-Pacific Web Conference, 2011

Trajectory Pattern Mining.
Proceedings of the Computing with Spatial Trajectories, 2011

2010
Multidimensional Databases and Data Warehousing
Synthesis Lectures on Data Management, Morgan & Claypool Publishers, ISBN: 978-3-031-01841-1, 2010

Enabling search services on outsourced private spatial data.
VLDB J., 2010

Path prediction and predictive range querying in road network databases.
VLDB J., 2010

Sharing-Aware Horizontal Partitioning for Exploiting Correlations During Query Processing.
Proc. VLDB Endow., 2010

Mining Significant Semantic Locations From GPS Data.
Proc. VLDB Endow., 2010

Retrieving Top-k Prestige-Based Relevant Spatial Web Objects.
Proc. VLDB Endow., 2010

Indoor - A New Data Management Frontier.
IEEE Data Eng. Bull., 2010

A generalized framework of exploring category information for question retrieval in community question answer archives.
Proceedings of the 19th International Conference on World Wide Web, 2010

Elements of a Spatial Web.
Proceedings of the Web Information Systems Engineering - WISE 2010, 2010

Google fusion tables: web-centered data management and collaboration.
Proceedings of the ACM SIGMOD International Conference on Management of Data, 2010

Algorithmic strategies for adapting to environmental changes in 802.11 location fingerprinting.
Proceedings of the 2010 International Conference on Indoor Positioning and Indoor Navigation, 2010

Probabilistic threshold k nearest neighbor queries over moving objects in symbolic indoor space.
Proceedings of the EDBT 2010, 2010

Google fusion tables: data management, integration and collaboration in the cloud.
Proceedings of the 1st ACM Symposium on Cloud Computing, 2010

Preserving location and absence privacy in geo-social networks.
Proceedings of the 19th ACM Conference on Information and Knowledge Management, 2010

2009
Indexing of the Current and Near-Future Positions of Moving Objects.
Proceedings of the Encyclopedia of Database Systems, 2009

Map Matching.
Proceedings of the Encyclopedia of Database Systems, 2009

Valid Time.
Proceedings of the Encyclopedia of Database Systems, 2009

User-Defined Time.
Proceedings of the Encyclopedia of Database Systems, 2009

Transaction Time.
Proceedings of the Encyclopedia of Database Systems, 2009

Timeslice Operator.
Proceedings of the Encyclopedia of Database Systems, 2009

Time Span.
Proceedings of the Encyclopedia of Database Systems, 2009

Time Interval.
Proceedings of the Encyclopedia of Database Systems, 2009

Time Instant.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Specialization.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Query Languages.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Projection.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Homogeneity.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Generalization.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Expression.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Element.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Database.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Data Models.
Proceedings of the Encyclopedia of Database Systems, 2009

Snapshot Equivalence.
Proceedings of the Encyclopedia of Database Systems, 2009

Relative Time.
Proceedings of the Encyclopedia of Database Systems, 2009

History in Temporal Databases.
Proceedings of the Encyclopedia of Database Systems, 2009

Forever.
Proceedings of the Encyclopedia of Database Systems, 2009

Fixed Time Span.
Proceedings of the Encyclopedia of Database Systems, 2009

Event in Temporal Databases.
Proceedings of the Encyclopedia of Database Systems, 2009

Calendar.
Proceedings of the Encyclopedia of Database Systems, 2009

Bitemporal Relation.
Proceedings of the Encyclopedia of Database Systems, 2009

Bitemporal Interval.
Proceedings of the Encyclopedia of Database Systems, 2009

Weak Equivalence.
Proceedings of the Encyclopedia of Database Systems, 2009

Variable Time Span.
Proceedings of the Encyclopedia of Database Systems, 2009

Applicability Period.
Proceedings of the Encyclopedia of Database Systems, 2009

Absolute Time.
Proceedings of the Encyclopedia of Database Systems, 2009

Lifespan.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Aggregation.
Proceedings of the Encyclopedia of Database Systems, 2009

Now in Temporal Databases.
Proceedings of the Encyclopedia of Database Systems, 2009

Calendric System.
Proceedings of the Encyclopedia of Database Systems, 2009

Temporal Compatibility.
Proceedings of the Encyclopedia of Database Systems, 2009

Nonsequenced Semantics.
Proceedings of the Encyclopedia of Database Systems, 2009

Current Semantics.
Proceedings of the Encyclopedia of Database Systems, 2009

Sequenced Semantics.
Proceedings of the Encyclopedia of Database Systems, 2009

SQL-Based Temporal Query Languages.
Proceedings of the Encyclopedia of Database Systems, 2009

Effectively Indexing Uncertain Moving Objects for Predictive Queries.
Proc. VLDB Endow., 2009

Workload-Aware Indexing of Continuously Moving Objects.
Proc. VLDB Endow., 2009

Efficient Retrieval of the Top-k Most Relevant Spatial Web Objects.
Proc. VLDB Endow., 2009

Object-extended OLAP querying.
Data Knowl. Eng., 2009

Indexing the Trajectories of Moving Objects in Symbolic Indoor Space.
Proceedings of the Advances in Spatial and Temporal Databases, 2009

Pretty Easy Pervasive Positioning.
Proceedings of the Advances in Spatial and Temporal Databases, 2009

Data Management Infrastructure for the Mobile Web.
Proceedings of the Fifth International Conference on Semantics, Knowledge and Grid, 2009

Graph Model Based Indoor Tracking.
Proceedings of the MDM 2009, 2009

Seamless Indoor/Outdoor Positioning Handover for Location-Based Services in Streamspin.
Proceedings of the MDM 2009, 2009

Routing Questions to the Right Users in Online Communities.
Proceedings of the 25th International Conference on Data Engineering, 2009

Outsourcing Search Services on Private Spatial Data.
Proceedings of the 25th International Conference on Data Engineering, 2009

Emotion-based music retrieval on a well-reduced audio feature space.
Proceedings of the IEEE International Conference on Acoustics, 2009

Towards location-based access control in healthcare emergency response.
Proceedings of the 2nd SIGSPATIAL ACM GIS 2009 International Workshop on Security and Privacy in GIS and LBS, 2009

Assessing the predictability of scheduled-vehicle travel times.
Proceedings of the 17th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems, 2009

Location Privacy Techniques in Client-Server Architectures.
Proceedings of the Privacy in Location-Based Applications, 2009

Scalable continuous range monitoring of moving objects in symbolic indoor space.
Proceedings of the 18th ACM Conference on Information and Knowledge Management, 2009

The use of categorization information in language models for question retrieval.
Proceedings of the 18th ACM Conference on Information and Knowledge Management, 2009

2008
Spatio-temporal Database Modeling with an Extended Entity-Relationship Model.
Proceedings of the Encyclopedia of GIS., 2008

Road Network Data Model.
Proceedings of the Encyclopedia of GIS., 2008

Maximum Update Interval in Moving Objects Databases.
Proceedings of the Encyclopedia of GIS., 2008

Indexing of Moving Objects, Bx-Tree.
Proceedings of the Encyclopedia of GIS., 2008

Discovery of convoys in trajectory databases.
Proc. VLDB Endow., 2008

A benchmark for evaluating moving object indexes.
Proc. VLDB Endow., 2008

Specification-based data reduction in dimensional data warehouses.
Inf. Syst., 2008

Enabling Location-based Services - Multi-Graph Representation of Transportation Networks.
GeoInformatica, 2008

User-Generated Content: The Case for Mobile Services.
Computer, 2008

Efficient Vessel Tracking with Accuracy Guarantees.
Proceedings of the Web and Wireless Geographical Information Systems, 2008

TransDB: GPS data management with applications in collective transport.
Proceedings of the 5th Annual International Conference on Mobile and Ubiquitous Systems: Computing, 2008

Seamless indoor/outdoor positioning with streamspin.
Proceedings of the 5th Annual International Conference on Mobile and Ubiquitous Systems: Computing, 2008

PAD: privacy-area aware, dummy-based location privacy in mobile services.
Proceedings of the Seventh ACM International Workshop on Data Engineering for Wireless and Mobile Access, 2008

Efficient Cost-Based Tracking of Scheduled Vehicle Journeys.
Proceedings of the 9th International Conference on Mobile Data Management (MDM 2008), 2008

Ranking music data by relevance and importance.
Proceedings of the 2008 IEEE International Conference on Multimedia and Expo, 2008

SpaceTwist: Managing the Trade-Offs Among Location Privacy, Query Performance, and Query Accuracy in Mobile Services.
Proceedings of the 24th International Conference on Data Engineering, 2008

Similarity-based prediction of travel times for vehicles traveling on known routes.
Proceedings of the 16th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems, 2008

Capturing Temporal Constraints in Temporal ER Models.
Proceedings of the Conceptual Modeling, 2008

A Flexible Query Framework for Music Data and Playlist Manipulation.
Proceedings of the 19th International Workshop on Database and Expert Systems Applications (DEXA 2008), 2008

Towards General Temporal Aggregation.
Proceedings of the Sharing Data, 2008

2007
Special issue: best papers of VLDB 2005.
VLDB J., 2007

Continuous Clustering of Moving Objects.
IEEE Trans. Knowl. Data Eng., 2007

Integrating multiple calendars using tau-ZAMAN.
Softw. Pract. Exp., 2007

Enabling Routes of Road Network Constrained Movements as Mobile Service Context.
GeoInformatica, 2007

TRAX - Real-World Tracking of Moving Objects.
Proceedings of the 33rd International Conference on Very Large Data Bases, 2007

Main-Memory Operation Buffering for Efficient R-Tree Update.
Proceedings of the 33rd International Conference on Very Large Data Bases, 2007

Distributed, Concurrent Range Monitoring of Spatial-Network Constrained Mobile Objects.
Proceedings of the Advances in Spatial and Temporal Databases, 2007

S-GRID: A Versatile Approach to Efficient Query Processing in Spatial Networks.
Proceedings of the Advances in Spatial and Temporal Databases, 2007

Collaborative Spatial Data Sharing Among Mobile Lightweight Devices.
Proceedings of the Advances in Spatial and Temporal Databases, 2007

Challenges in the Tracking and Prediction of Scheduled-Vehicle Journeys.
Proceedings of the Fifth Annual IEEE International Conference on Pervasive Computing and Communications, 2007

A Testbed for the Exploration of Novel Concepts in Mobile Service Delivery.
Proceedings of the 8th International Conference on Mobile Data Management (MDM 2007), 2007

When the Internet Hits the Road.
Proceedings of the Datenbanksysteme in Business, 2007

Tracking of Moving Objects with Accuracy Guarantees.
Proceedings of the Spatial Data on the Web, Modeling and Management., 2007

2006
Nearest and reverse nearest neighbor queries for moving objects.
VLDB J., 2006

Indexing the past, present, and anticipated future positions of moving objects.
ACM Trans. Database Syst., 2006

An algebraic framework for temporal attribute characteristics.
Ann. Math. Artif. Intell., 2006

How Would You Like to Aggregate Your Temporal Data?
Proceedings of the 13th International Symposium on Temporal Representation and Reasoning (TIME 2006), 2006

Robust B+-Tree-Based Indexing of Moving Objects.
Proceedings of the 7th International Conference on Mobile Data Management (MDM 2006), 2006

Expiration Times for Data Management.
Proceedings of the 22nd International Conference on Data Engineering, 2006

Effective Density Queries on ContinuouslyMoving Objects.
Proceedings of the 22nd International Conference on Data Engineering, 2006

Skyline Queries Against Mobile Lightweight Devices in MANETs.
Proceedings of the 22nd International Conference on Data Engineering, 2006

Multi-dimensional Aggregation for Temporal Data.
Proceedings of the Advances in Database Technology, 2006

Efficient Maintenance of Ephemeral Data.
Proceedings of the Database Systems for Advanced Applications, 2006

The COST Benchmark-Comparison and Evaluation of Spatio-temporal Indexes.
Proceedings of the Database Systems for Advanced Applications, 2006

Geo-Enabled, Mobile Services-A Tale of Routes, Detours, and Dead Ends.
Proceedings of the Database Systems for Advanced Applications, 2006

Efficient Similarity Retrieval In Music Databases.
Proceedings of the 13th International Conference on Management of Data, 2006

Multiple k Nearest Neighbor Query Processing in Spatial Network Databases.
Proceedings of the Advances in Databases and Information Systems, 2006

2005
Join operations in temporal databases.
VLDB J., 2005

Techniques for Efficient Road-Network-Based Tracking of Moving Objects.
IEEE Trans. Knowl. Data Eng., 2005

A Conceptual Schema Language for the Management of Multiple Representations of Geographic Entities.
Trans. GIS, 2005

An apples-to-apples comparison of two database journals.
SIGMOD Rec., 2005

Indeterminacy and Spatiotemporal Data: Basic Definitions and Case Study.
GeoInformatica, 2005

Trajectory Indexing Using Movement Constraints*.
GeoInformatica, 2005

Efficient Management of Short-Lived Data
CoRR, 2005

Database Publication Practices.
Proceedings of the 31st International Conference on Very Large Data Bases, Trondheim, Norway, August 30, 2005

The Islands Approach to Nearest Neighbor Querying in Spatial Networks.
Proceedings of the Advances in Spatial and Temporal Databases, 9th International Symposium, 2005

Efficient indexing of the historical, present, and future positions of moving objects.
Proceedings of the 6th International Conference on Mobile Data Management (MDM 2005), 2005

Using the Lock Manager to Choose Timestamps.
Proceedings of the Ninth International Database Engineering and Applications Symposium (IDEAS 2005), 2005

05421 Abstracts Collection -- Data Always and Everywhere -- Management of Mobile, Ubiquitous, Pervasive, and Sensor Data.
Proceedings of the Data Always and Everywhere - Management of Mobile, Ubiquitous, Pervasive, and Sensor Data, 16.10., 2005

05421 Executive Summary -- Data Always and Everywhere -- Management of Mobile, Ubiquitous, and Pervasive Data.
Proceedings of the Data Always and Everywhere - Management of Mobile, Ubiquitous, Pervasive, and Sensor Data, 16.10., 2005

Multidimensional Databases.
Proceedings of the Industrial Information Technology Handbook, 2005

2004
Multidimensional data modeling for location-based services.
VLDB J., 2004

Modification semantics in now-relative databases.
Inf. Syst., 2004

The Infati Data
CoRR, 2004

In-Route Skyline Querying for Location-Based Services.
Proceedings of the Web and Wireless Geographical Information Systems, 2004

Query and Update Efficient B+-Tree Based Indexing of Moving Objects.
Proceedings of the (e)Proceedings of the Thirtieth International Conference on Very Large Data Bases, VLDB 2004, Toronto, Canada, August 31, 2004

Towards A Streams-Based Framework for Defining Location-Based Queries.
Proceedings of the Spatio-Temporal Database Management, 2004

A Framework for Conceptual Modeling of Geographic Data Quality.
Proceedings of the Developments in Spatial Data Handling, 2004

Efficient Tracking of Moving Objects with Precision Guarantees.
Proceedings of the 1st Annual International Conference on Mobile and Ubiquitous Systems (MobiQuitous 2004), 2004

Enabling routes as context in mobile services.
Proceedings of the 12th ACM International Workshop on Geographic Information Systems, 2004

04441 Working Group - Research Issues in Mobile Querying.
Proceedings of the Mobile Information Management, 24.-29. October 2004, 2004

04441 Working Group - Towards a Handbook for User-Centred Mobile Application Design.
Proceedings of the Mobile Information Management, 24.-29. October 2004, 2004

Conceptual Modeling of Time-Varying Information.
Proceedings of the 2nd International Conference Computing, 2004

Database Aspects of Location-Based Services.
Proceedings of the Location-Based Services, 2004

2003
Introduction to special issue with best papers from EDBT 2002.
Inf. Syst., 2003

A foundation for vacuuming temporal databases.
Data Knowl. Eng., 2003

Spatio-Temporal Data Exchange Standards.
IEEE Data Eng. Bull., 2003

Letter from the Special Issue Editor.
IEEE Data Eng. Bull., 2003

Supporting Frequent Updates in R-Trees: A Bottom-Up Approach.
Proceedings of 29th International Conference on Very Large Data Bases, 2003

Integrated Data Management for Mobile Services in the Real World.
Proceedings of 29th International Conference on Very Large Data Bases, 2003

Modeling and Testing Legacy Data Consistency Requirements.
Proceedings of the «UML» 2003, 2003

Object-Relational Management of Multiply Represented Geographic Entities.
Proceedings of the 15th International Conference on Scientific and Statistical Database Management (SSDBM 2003), 2003

Data Modeling for Mobile Services in the Real World.
Proceedings of the Advances in Spatial and Temporal Databases, 8th International Symposium, 2003

Computational data modeling for network-constrained moving objects.
Proceedings of the ACM-GIS 2003, 2003

Indexing of network constrained moving objects.
Proceedings of the ACM-GIS 2003, 2003

Nearest neighbor queries in road networks.
Proceedings of the ACM-GIS 2003, 2003

Conceptual Models for Spatio-temporal Applications.
Proceedings of the Spatio-Temporal Databases: The CHOROCHRONOS Approach, 2003

Access Methods and Query Processing Techniques.
Proceedings of the Spatio-Temporal Databases: The CHOROCHRONOS Approach, 2003

Spatio-temporal Models and Languages: An Approach Based on Data Types.
Proceedings of the Spatio-Temporal Databases: The CHOROCHRONOS Approach, 2003

Architectures and Implementations of Spatio-temporal Database Management Systems.
Proceedings of the Spatio-Temporal Databases: The CHOROCHRONOS Approach, 2003

Incomplete Information in Multidimensional Databases.
Proceedings of the Multidimensional Databases: Problems and Solutions, 2003

2002
Temporal Data Model and Query Language Concepts.
Proceedings of the Encyclopedia of Information Systems, 2002

Indexing of now-relative spatio-bitemporal data.
VLDB J., 2002

Bringing Order to Query Optimization.
SIGMOD Rec., 2002

Towards Increasingly Update Efficient Moving-Object Indexing.
IEEE Data Eng. Bull., 2002

Algorithmic issues in modeling motion.
ACM Comput. Surv., 2002

Persistent Views-A Mechanism for Managing Ageing Data.
Comput. J., 2002

Research Challenges in Location-Enabled M-Services.
Proceedings of the Third International Conference on Mobile Data Management (MDM 2002), 2002

Management of Multiply Represented Geographic Entities.
Proceedings of the International Database Engineering & Applications Symposium, 2002

Nearest Neighbor and Reverse Nearest Neighbor Queries for Moving Objects.
Proceedings of the International Database Engineering & Applications Symposium, 2002

Indexing of Moving Objects for Location-Based Services.
Proceedings of the 18th International Conference on Data Engineering, San Jose, CA, USA, February 26, 2002

Extending UML for Space- and Time-Dependent Applications.
Proceedings of the Advanced Topics in Database Research, Vol. 1, 2002

2001
A Foundation for Conventional and Temporal Query Optimization Addressing Duplicates and Ordering.
IEEE Trans. Knowl. Data Eng., 2001

MetaXPath.
J. Digit. Inf., 2001

A foundation for capturing and querying complex multidimensional data.
Inf. Syst., 2001

Mobile E-Services and Their Challenges to Data Warehousing.
Datenbank Rundbr., 2001

Multidimensional Database Technology.
Computer, 2001

Transaction Timestamping in (Temporal) Databases.
Proceedings of the VLDB 2001, 2001

Adaptable Query Optimization and Evaluation in Temporal Middleware.
Proceedings of the 2001 ACM SIGMOD international conference on Management of data, 2001

Location-based services: A database perspective.
Proceedings of the 8th Scandinavian Research Conference on Geographical Information Science, 2001

Querying the trajectories of on-line mobile objects.
Proceedings of the Second ACM International Workshop on Data Engineering for Wireless and Mobile Access, 2001

Pre-Aggregation for Irregular OLAP Hierarchies with the TreeScape System.
Proceedings of the ICDE 2001, Demo Session Abstracts (Informal Proceedings), 2001

Requirements and Research Issues in Geographic Data Modeling.
Proceedings of the ACM-GIS 2001, 2001

Modeling Topological Constraints in Spatial Part-Whole Relationships.
Proceedings of the Conceptual Modeling, 2001

Enhancing an Extensible Query Optimizer with Support for Multiple Equivalence Types.
Proceedings of the Advances in Databases and Information Systems, 2001

2000
Effective Timestamping in Databases.
VLDB J., 2000

A foundation for representing and querying moving objects.
ACM Trans. Database Syst., 2000

Temporal statement modifiers.
ACM Trans. Database Syst., 2000

Extended Spatiotemporal UML: Motivations, Requirements and Constructs.
J. Database Manag., 2000

Review - The Logical Access Path Schema of a Database
ACM SIGMOD Digit. Rev., 2000

Novel Approaches to the Indexing of Moving Object Trajectories.
Proceedings of the VLDB 2000, 2000

The TreeScape System: Reuse of Pre-Computed Aggregates over Irregular OLAP Hierarchies.
Proceedings of the VLDB 2000, 2000

Light-Weight Indexing of General Bitemporal Data.
Proceedings of the 12th International Conference on Scientific and Statistical Database Management, 2000

Indexing the Positions of Continuously Moving Objects.
Proceedings of the 2000 ACM SIGMOD International Conference on Management of Data, 2000

Using Abstractions for Spatio-Temporal Conceptual Modeling.
Proceedings of the Applied Computing 2000, 2000

Query Plans for Conventional and Temporal Queries Involving Duplicates and Ordering.
Proceedings of the 16th International Conference on Data Engineering, San Diego, California, USA, February 28, 2000

Modeling part-whole relationships for spatial data.
Proceedings of the ACM-GIS 2000, 2000

Managing Aging Data Using Persistent Views (Extended Abstract).
Proceedings of the Cooperative Information Systems, 7th International Conference, 2000

Extending OLAP Querying to External Object Databases.
Proceedings of the 2000 ACM CIKM International Conference on Information and Knowledge Management, 2000

Temporally Enhanced Database Design.
Proceedings of the Advances in Object-Oriented Data Modeling, 2000

1999
Temporal Data Management.
IEEE Trans. Knowl. Data Eng., 1999

Temporal Entity-Relationship Models - A Survey.
IEEE Trans. Knowl. Data Eng., 1999

Chorochronos: A Research Network for Spatiotemporal Database Systems.
SIGMOD Rec., 1999

Conceptual Data Modeling for Spatiotemporal Applications.
GeoInformatica, 1999

Review - Equivalence of Relational Algebra and Relational Calculus Query Languages Having Aggregate Functions
ACM SIGMOD Digit. Rev., 1999

Review - Multi-Step Processing of Spatial Joins.
ACM SIGMOD Digit. Rev., 1999

Review - R-Trees: A Dynamic Index Structure for Spatial Searching.
ACM SIGMOD Digit. Rev., 1999

Extending Practical Pre-Aggregation in On-Line Analytical Processing.
Proceedings of the VLDB'99, 1999

Capturing and Querying Multiple Aspects of Semistructured Data.
Proceedings of the VLDB'99, 1999

Incremental Join of Time-Oriented Data.
Proceedings of the 11th International Conference on Scientific and Statistical Database Management, 1999

Supporting Imprecision in Multidimensional Databases Using Granularities.
Proceedings of the 11th International Conference on Scientific and Statistical Database Management, 1999

Capturing the Uncertainty of Moving-Object Representations.
Proceedings of the Advances in Spatial Databases, 1999

Multidimensional Data Modeling for Complex Data.
Proceedings of the 15th International Conference on Data Engineering, 1999

Developing a DataBlade for a New Index.
Proceedings of the 15th International Conference on Data Engineering, 1999

On the Ontological Expressiveness of Temporal Extensions to the Entity-Relationship Model.
Proceedings of the Advances in Conceptual Modeling: ER '99 Workshops on Evolution and Change in Data Management, 1999

1998
Efficient Differential Timeslice Computation.
IEEE Trans. Knowl. Data Eng., 1998

An Extensible Notation for Spatiotemporal Index Queries.
SIGMOD Rec., 1998

R-Tree Based Indexing of Now-Relative Bitemporal Data.
Proceedings of the VLDB'98, 1998

Research Issues in Clinical Data Warehousing.
Proceedings of the 10th International Conference on Scientific and Statistical Database Management, 1998

Spatio-temporal database support for legacy applications.
Proceedings of the 1998 ACM symposium on Applied Computing, 1998

Stratum Approaches to Temporal DBMS Implementation.
Proceedings of the 1998 International Database Engineering and Applications Symposium, 1998

Point-Versus Interval-Based Temporal Data Models.
Proceedings of the Fourteenth International Conference on Data Engineering, 1998

1997
Notions of Upward Compatibility of Temporal Query Languages.
Wirtschaftsinf., 1997

On the Semantics of "Now" in Databases
ACM Trans. Database Syst., 1997

Layered Temporal DBMS: Concepts and Techniques.
Proceedings of the Database Systems for Advanced Applications '97, 1997

Transitioning Temporal Support in TSQL2 to SQL3.
Proceedings of the Temporal Databases: Research and Practice. (the book grow out of a Dagstuhl Seminar, 1997


1996
Extending Existing Dependency Theory to Temporal Databases.
IEEE Trans. Knowl. Data Eng., 1996

Semantics of Time-Varying Information.
Inf. Syst., 1996

1995
Report on The 1995 International Workshop on Temporal Databases.
SIGMOD Rec., 1995

Panel: The State-of-the-Art in Temporal Data Management: Perspectives from the Research and Financial Applications Communities
Proceedings of the Recent Advances in Temporal Databases, 1995

Evaluating the Completeness of TSQL2
Proceedings of the Recent Advances in Temporal Databases, 1995

Semantics of Time-Varying Attributes and their Use for Temporal Database Design.
Proceedings of the OOER'95: Object-Oriented and Entity-Relationship Modelling, 1995

An Architectural Framework.
Proceedings of the TSQL2 Temporal Query Language, 1995

An Algebra for TSQL2
Proceedings of the TSQL2 Temporal Query Language, 1995

The From Clause.
Proceedings of the TSQL2 Temporal Query Language, 1995

Schema Specification.
Proceedings of the TSQL2 Temporal Query Language, 1995

A Second Example.
Proceedings of the TSQL2 Temporal Query Language, 1995

Modification.
Proceedings of the TSQL2 Temporal Query Language, 1995

The TSQL2 Data Model.
Proceedings of the TSQL2 Temporal Query Language, 1995

Cursors.
Proceedings of the TSQL2 Temporal Query Language, 1995

The Surrogate Data Type.
Proceedings of the TSQL2 Temporal Query Language, 1995

Vacuuming.
Proceedings of the TSQL2 Temporal Query Language, 1995

Valid-Time Selection and Projection.
Proceedings of the TSQL2 Temporal Query Language, 1995

''Now''.
Proceedings of the TSQL2 Temporal Query Language, 1995

1994
Temporal Specialization and Generalization.
IEEE Trans. Knowl. Data Eng., 1994

A TSQL2 Tutorial.
SIGMOD Rec., 1994

TSQL2 Language Specification.
SIGMOD Rec., 1994

A Consensus Glossary of Temporal Database Concepts.
SIGMOD Rec., 1994

Unifying Temporal Data Models via a Conceptual Model.
Inf. Syst., 1994

Efficient Evaluation of the Valid-Time Natural Join.
Proceedings of the Tenth International Conference on Data Engineering, 1994

1993
Using Differential Techniques to Efficiently Support Transaction Time
VLDB J., 1993

Unification of Temporal Data Models.
Proceedings of the Ninth International Conference on Data Engineering, 1993

Differential Query Processing in Transaction-Time Databases.
Proceedings of the Temporal Databases: Theory, Design, and Implementation., 1993

1992
Queries on Change in an Extended Relational Model.
IEEE Trans. Knowl. Data Eng., 1992

A Glossary of Temporal Database Concepts.
SIGMOD Rec., 1992

Temporal Specialization.
Proceedings of the Eighth International Conference on Data Engineering, 1992

1991
Incremental Implementation Model for Relational Databases with Transaction Time.
IEEE Trans. Knowl. Data Eng., 1991


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