Özgür Ulusoy

Orcid: 0000-0002-6887-3778

Affiliations:
  • Bilkent University, Ankara, Turkey


According to our database1, Özgür Ulusoy authored at least 153 papers between 1988 and 2024.

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Bibliography

2024
Application Scheduling With Multiplexed Sensing of Monitoring Points in Multi-Purpose IoT Wireless Sensor Networks.
IEEE Trans. Netw. Serv. Manag., February, 2024

A Utilization Based Genetic Algorithm for virtual machine placement in cloud systems.
Comput. Commun., January, 2024

xDBTagger: explainable natural language interface to databases using keyword mappings and schema graph.
VLDB J., 2024

Learning visual similarity for image retrieval with global descriptors and capsule networks.
Multim. Tools Appl., 2024

2023
Misinformation Propagation in Online Social Networks: Game Theoretic and Reinforcement Learning Approaches.
IEEE Trans. Comput. Soc. Syst., December, 2023

Modeling and Mitigating Online Misinformation: a Suggested Blockchain Approach.
CoRR, 2023

2022
Understanding security vulnerabilities in student code: A case study in a non-security course.
J. Syst. Softw., 2022

Application placement with shared monitoring points in multi-purpose IoT wireless sensor networks.
Comput. Networks, 2022

2021
Learning to Rank for Educational Search Engines.
IEEE Trans. Learn. Technol., 2021

DBTagger: Multi-Task Learning for Keyword Mapping in NLIDBs Using Bi-Directional Recurrent Neural Networks.
Proc. VLDB Endow., 2021

Explicit diversification of search results across multiple dimensions for educational search.
J. Assoc. Inf. Sci. Technol., 2021

GenShare: Sharing Accurate Differentially-Private Statistics for Genomic Datasets with Dependent Tuples.
CoRR, 2021

2020
Supervised approaches for explicit search result diversification.
Inf. Process. Manag., 2020

Inference attacks against differentially private query results from genomic datasets including dependent tuples.
Bioinform., 2020

Differential privacy under dependent tuples - the case of genomic privacy.
Bioinform., 2020

2019
An Analysis of Social Networks Based on Tera-Scale Telecommunication Datasets.
IEEE Trans. Emerg. Top. Comput., 2019

Improving educational web search for question-like queries through subject classification.
Inf. Process. Manag., 2019

Re-finding Behaviour in Educational Search.
Proceedings of the Digital Libraries for Open Knowledge, 2019

2018
Characterizing, predicting, and handling web search queries that match very few or no results.
J. Assoc. Inf. Sci. Technol., 2018

2017
Mobile multi-view object image search.
Multim. Tools Appl., 2017

PETAL: A fully distributed location service for wireless ad hoc networks.
J. Netw. Comput. Appl., 2017

2016
A "Suggested" Picture of Web Search in Turkish.
ACM Trans. Asian Low Resour. Lang. Inf. Process., 2016

Integrating social features into mobile local search.
J. Syst. Softw., 2016

Towards detecting media bias by utilizing user comments.
Proceedings of the 8th ACM Conference on Web Science, 2016

2015
HandVR: a hand-gesture-based interface to a video retrieval system.
Signal Image Video Process., 2015

Efficient community identification and maintenance at multiple resolutions on distributed datastores.
Data Knowl. Eng., 2015

Network-aware virtual machine placement in cloud data centers with multiple traffic-intensive components.
Comput. Networks, 2015

Propagating Expiration Decisions in a Search Engine Result Cache.
Proceedings of the 24th International Conference on World Wide Web Companion, 2015

Mobile image search using multi-query images.
Proceedings of the 2015 23nd Signal Processing and Communications Applications Conference (SIU), 2015

Graph Aware Caching Policy for Distributed Graph Stores.
Proceedings of the 2015 IEEE International Conference on Cloud Engineering, 2015

2014
Distributed $k$ -Core View Materializationand Maintenance for Large Dynamic Graphs.
IEEE Trans. Knowl. Data Eng., 2014

How k-12 students search for learning?: analysis of an educational search engine log.
Proceedings of the 37th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2014

2013
Second Chance: A Hybrid Approach for Dynamic Result Caching and Prefetching in Search Engines.
ACM Trans. Web, 2013

Cluster searching strategies for collaborative recommendation systems.
Inf. Process. Manag., 2013

A financial cost metric for result caching.
Proceedings of the 36th International ACM SIGIR conference on research and development in Information Retrieval, 2013

Strategies for setting time-to-live values in result caches.
Proceedings of the 22nd ACM International Conference on Information and Knowledge Management, 2013

Multi-resolution Social Network Community Identification and Maintenance on Big Data Platform.
Proceedings of the IEEE International Congress on Big Data, 2013

2012
A framework for use of wireless sensor networks in forest fire detection and monitoring.
Comput. Environ. Urban Syst., 2012

Cache-Based Query Processing for Search Engines.
ACM Trans. Web, 2012

Static index pruning in web search engines: Combining term and document popularities with query views.
ACM Trans. Inf. Syst., 2012

A five-level static cache architecture for web search engines.
Inf. Process. Manag., 2012

In Praise of Laziness: A Lazy Strategy for Web Information Extraction.
Proceedings of the Advances in Information Retrieval, 2012

On the Size of Full Element-Indexes for XML Keyword Search.
Proceedings of the Advances in Information Retrieval, 2012

Adaptive Time-to-Live Strategies for Query Result Caching in Web Search Engines.
Proceedings of the Advances in Information Retrieval, 2012

Characterizing web search queries that match very few or no results.
Proceedings of the 21st ACM International Conference on Information and Knowledge Management, 2012

2011
Cost-Aware Strategies for Query Result Caching in Web Search Engines.
ACM Trans. Web, 2011

Exploiting navigational queries for result presentation and caching in Web search engines.
J. Assoc. Inf. Sci. Technol., 2011

Nearest-Neighbor based Metric Functions for indoor scene recognition.
Comput. Vis. Image Underst., 2011

Timestamp-based cache invalidation for search engines.
Proceedings of the 20th International Conference on World Wide Web, 2011

Evolution of web search results within years.
Proceedings of the Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2011

Timestamp-based result cache invalidation for web search engines.
Proceedings of the Proceeding of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2011

Second Chance: A Hybrid Approach for Dynamic Result Caching in Search Engines.
Proceedings of the Advances in Information Retrieval, 2011

2010
Video copy detection using multiple visual cues and MPEG-7 descriptors.
J. Vis. Commun. Image Represent., 2010

Bilvideo-7: an MPEG-7- compatible video indexing and retrieval system.
IEEE Multim., 2010

Scenario-based query processing for video-surveillance archives.
Eng. Appl. Artif. Intell., 2010

Fuzzy color histogram-based video segmentation.
Comput. Vis. Image Underst., 2010

XML Retrieval Using Pruned Element-Index Files.
Proceedings of the Advances in Information Retrieval, 2010

2009
Ottoman archives explorer: A retrieval system for digital Ottoman archives.
ACM Journal on Computing and Cultural Heritage, 2009

Reducing query overhead through route learning in unstructured peer-to-peer network.
J. Netw. Comput. Appl., 2009

Free Riding in Peer-to-Peer Networks.
IEEE Internet Comput., 2009

Exploiting Index Pruning Methods for Clustering XML Collections.
Proceedings of the Focused Retrieval and Evaluation, 2009

A Practitioner's Guide for Static Index Pruning.
Proceedings of the Advances in Information Retrieval, 2009

A Cost-Aware Strategy for Query Result Caching in Web Search Engines.
Proceedings of the Advances in Information Retrieval, 2009

Exploiting query views for static index pruning in web search engines.
Proceedings of the 18th ACM Conference on Information and Knowledge Management, 2009

2008
Incremental cluster-based retrieval using compressed cluster-skipping inverted files.
ACM Trans. Inf. Syst., 2008

Automatic detection of salient objects and spatial relations in videos for a video database system.
Image Vis. Comput., 2008

A connection management protocol for promoting cooperation in Peer-to-Peer networks.
Comput. Commun., 2008

Counteracting free riding in Peer-to-Peer networks.
Comput. Networks, 2008

Static query result caching revisited.
Proceedings of the 17th International Conference on World Wide Web, 2008

Bilkent University Multimedia Database Group at TRECVID 2008.
Proceedings of the TRECVID 2008 workshop participants notebook papers, 2008

Site-based dynamic pruning for query processing in search engines.
Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2008

Segmentation-based extraction of important objects from video for object-based indexing.
Proceedings of the 2008 IEEE International Conference on Multimedia and Expo, 2008

Efficient Processing of Category-Restricted Queries for Web Directories.
Proceedings of the Advances in Information Retrieval , 2008

Utilization of navigational queries for result presentation and caching in search engines.
Proceedings of the 17th ACM Conference on Information and Knowledge Management, 2008

2007
A Natural Language-Based Interface for Querying a Video Database.
IEEE Multim., 2007

Large-scale cluster-based retrieval experiments on Turkish texts.
Proceedings of the SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2007

An automatic approach to construct domain-specific web portals.
Proceedings of the Sixteenth ACM Conference on Information and Knowledge Management, 2007

Integration of Structural and Semantic Models for Multimedia Metadata Management.
Proceedings of the International Workshop on Content-Based Multimedia Indexing, 2007

2006
Adaptive schemes for location update generation in execution location-dependent continuous queries.
J. Syst. Softw., 2006

Processing count queries over event streams at multiple time granularities.
Inf. Sci., 2006

A comparison of epidemic algorithms in wireless sensor networks.
Comput. Commun., 2006

Algorithms for Within-Cluster Searches Using Inverted Files.
Proceedings of the Computer and Information Sciences, 2006

2005
Database research at Bilkent University.
SIGMOD Rec., 2005

BilVideo: Design and Implementation of a Video Database Management System.
Multim. Tools Appl., 2005

A histogram-based approach for object-based query-by-shape-and-color in image and video databases.
Image Vis. Comput., 2005

A data mining approach for location prediction in mobile environments.
Data Knowl. Eng., 2005

A Database Model for Querying Visual Surveillance Videos by Integrating Semantic and Low-Level Features.
Proceedings of the Advances in Multimedia Information Systems, 11th International Workshop, 2005

Effective Early Termination Techniques for Text Similarity Join Operator.
Proceedings of the Computer and Information Sciences, 2005

Characterizing Gnutella Network Properties for Peer-to-Peer Network Simulation.
Proceedings of the Computer and Information Sciences, 2005

2004
Rule-based spatiotemporal query processing for video databases.
VLDB J., 2004

Querying web metadata: Native score management and text support in databases.
ACM Trans. Database Syst., 2004

Content-based retrieval of historical Ottoman documents stored as textual images.
IEEE Trans. Image Process., 2004

An efficient query optimization strategy for spatio-temporal queries in video databases.
J. Syst. Softw., 2004

Metadata-based modeling of information resources on the Web.
J. Assoc. Inf. Sci. Technol., 2004

Exploiting Interclass Rules for Focused Crawling.
IEEE Intell. Syst., 2004

BilVideo Video Database Management System.
Proceedings of the (e)Proceedings of the Thirtieth International Conference on Very Large Data Bases, VLDB 2004, Toronto, Canada, August 31, 2004

A Distributed and Measurement-Based Framework against Free Riding in Peer-to-Peer Networks.
Proceedings of the 4th International Conference on Peer-to-Peer Computing (P2P 2004), 2004

Integrated Querying of Images by Color, Shape, and Texture Content of Salient Objects.
Proceedings of the Advances in Information Systems, Third International Conference, 2004

2003
BilVideo: A Video Database Management System.
IEEE Multim., 2003

Evaluation of a Criticality-Based Method for Generating Location Updates.
Proceedings of the Persistence, Scalability, Transactions, 2003

Clustering Mobile Trajectories for Resource Allocation in Mobile Environments.
Proceedings of the Advances in Intelligent Data Analysis V, 2003

2002
Exploiting Data Mining Techniques for Broadcasting Data in Mobile Computing Environments.
IEEE Trans. Knowl. Data Eng., 2002

A rule-based video database system architecture.
Inf. Sci., 2002

Sideway Value Algebra for Object-Relational Databases.
Proceedings of 28th International Conference on Very Large Data Bases, 2002

KiMPA: A Kinematics-Based Method for Polygon Approximation.
Proceedings of the Advances in Information Systems, Second International Conference, 2002

2001
Automated construction of fuzzy event sets and its application to active databases.
IEEE Trans. Fuzzy Syst., 2001

Data Replication and Availability.
Proceedings of the Real-Time Database Systems: Architecture and Techniques, 2001

Distributed Concurrency Control.
Proceedings of the Real-Time Database Systems: Architecture and Techniques, 2001

A Semi-Automatic Object Extraction Tool for Querying in Multimedia Databases.
Proceedings of the MIS '01, 2001

Topic-Centric Querying of Web Information Resources.
Proceedings of the Database and Expert Systems Applications, 12th International Conference, 2001

An Efficient Method for Generating Location Updates for Processing of Location-Dependent Continuous Queries.
Proceedings of the Database Systems for Advanced Applications, Proceedings of the 7th International Conference on Database Systems for Advanced Applications (DASFAA 2001), 18-20 April 2001, 2001

Evaluation of a Broadcast Scheduling Algorithm.
Proceedings of the Advances in Databases and Information Systems, 2001

2000
Transmission of continuous query results in mobile computing systems.
Inf. Sci., 2000

Association Rules for Supporting Hoarding in Mobile Computing Environments.
Proceedings of the Tenth International Workshop on Research Issues on Data Engineering: Middleware for Mobile Business Applications and E-Commerce, 2000

A Rule-Based Approach to Represent Spatio-Temporal Relations in Video Data.
Proceedings of the Advances in Information Systems, First International Conference, 2000

1999
OBJECTIVE: a benchmark for object-oriented active database systems.
J. Syst. Softw., 1999

Dealing with Fuzziness in Active Mobile Database Systems.
Inf. Sci., 1999

An Evaluation of Real-Time Transaction Management Issues in Mobile Database Systems.
Comput. J., 1999

Real-Time Transaction Management in Mobile Computing Systems.
Proceedings of the Database Systems for Advanced Applications, 1999

1998
Transaction processing in distributed active real-time database systems.
J. Syst. Softw., 1998

Analysis of Concurrency Control Protocols for Real-Time Database Systems.
Inf. Sci., 1998

A Real-Time Concurrency Control Protocol for Main-Memory Database Systems.
Inf. Syst., 1998

Concurrent Rule Execution in Active Databases.
Inf. Syst., 1998

A Quadtree-Based Dynamic Attribute Indexing Method.
Comput. J., 1998

Real-Time Database Management for Mobile Computing.
Proceedings of the Third International Conference on Integrated Design and Process Technology, IDPT, 1998

Involving Fuzzy Concepts in Active Mobile Databases.
Proceedings of the Database and Expert Systems Applications, 9th International Conference, 1998

1997
An Evaluation of Network Access Protocols for Distributed Real-Time Database Systems.
J. Syst. Softw., 1997

Design and Evaluation of a New Transaction Execution Model for Multidatabase Systems.
Inf. Sci., 1997

Performance Issues in Processing Active Real-Time Transactions.
Proceedings of the Active, 1997

Panel Session: Predictability in Active Real-Time/Temporal Databases.
Proceedings of the Active, 1997

1996
Exploiting Main Memory DBMS Features to Improve Real-Time Concurrency Control Protocols.
SIGMOD Rec., 1996

Guest Editorial: Real-Time Database Systems.
Inf. Syst., 1996

An Efficient Memory Management Algorithm for Client-Server Database Management Systems.
Comput. J., 1996

A Transaction Model for Multidatabase Systems.
Proceedings of the Euro-Par '96 Parallel Processing, 1996

Heuristic Algorithms for Inter-Query Scheduling in Database Systems.
Proceedings of the Third International Workshop on Advances in Databases and Information Systems, 1996

An Evaluation of a Client-Server Real-Time Database System.
Proceedings of the 24th ACM Conference on Computer Science, 1996

1995
An Annotated Bibliography on Real-Time Database Systems.
SIGMOD Rec., 1995

A study of two transaction-processing architectures for distributed real-time data base systems.
J. Syst. Softw., 1995

In search of a fair rating system for publications.
J. Inf. Sci., 1995

Incorporating real-time scheduling methods into database management systems.
J. Inf. Sci., 1995

Research Issues in Real-Time Database Systems.
Inf. Sci., 1995

Network access protocol for hard real-time communication systems.
Comput. Commun., 1995

1994
Processing Real-Time Transactions in a Replicated Database System.
Distributed Parallel Databases, 1994

Applying Database Technology to Real-Time Systems.
Proceedings of the Database and Expert Systems Applications, 5th International Conference, 1994

Data Replication versus Timing Constraints in Distributed Database Systems.
Proceedings of the ACM 22rd Annual Computer Science Conference on Scaling up: Meeting the Challenge of Complexity in Real-World Computing Applications, 1994

1993
An Approximate Analysis of a Real-Time Database Concurrency Control Protocol via Markov Modeling.
SIGMETRICS Perform. Evaluation Rev., 1993

Real-time transaction scheduling in database systems.
Inf. Syst., 1993

1992
Concurrency Control in Real-Time Database Systems
PhD thesis, 1992

Current Research on Real-Time Databases.
SIGMOD Rec., 1992

Real-Time Lock-Based Concurrency Control in Distributed Database Systems.
Proceedings of the 12th International Conference on Distributed Computing Systems, 1992

A simulation model for distributed real-time database systems.
Proceedings of the Proceedings 25th Annual Simulation Symposium (ANSS-25 1992), 1992

Concurrency Control in Real-Time Database Systems.
Proceedings of the ACM 20th Annual Conference on Computer Science, 1992

1988
Dynamic congestion control in interconnected computer networks.
Proceedings of the 13th Conference on Local Computer Networks, 1988


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