Keiichi Ochiai

Orcid: 0000-0001-8344-0551

According to our database1, Keiichi Ochiai authored at least 34 papers between 2006 and 2023.

Collaborative distances:
  • Dijkstra number2 of five.
  • Erdős number3 of four.

Timeline

Legend:

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PhD thesis 
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Links

On csauthors.net:

Bibliography

2023
Characterizing Generic POI: A Novel Approach for Discovering Tourist Attractions.
J. Inf. Process., 2023

BaroDepth: A Method of Estimating Depth with Barometric Pressure Sensors in Smartphones.
Proceedings of the Adjunct Proceedings of the 2023 ACM International Joint Conference on Pervasive and Ubiquitous Computing & the 2023 ACM International Symposium on Wearable Computing, 2023

Stay Ahead of the Competition: An Approach for Churn Prediction by Leveraging Competitive Service App Usage Logs.
Proceedings of the Adjunct Proceedings of the 2023 ACM International Joint Conference on Pervasive and Ubiquitous Computing & the 2023 ACM International Symposium on Wearable Computing, 2023

Anomaly Detection for Population Dynamics using Autoencoder Leveraging Periodic Residual Component in Disaster Situations.
Proceedings of the 6th ACM SIGSPATIAL International Workshop on AI for Geographic Knowledge Discovery, 2023

2022
Content-based Stock Recommendation Using Smartphone Data.
J. Inf. Process., 2022

Anywhere Hoop: Virtual Free Throw Training System.
Proceedings of the Adjunct Publication of the 35th Annual ACM Symposium on User Interface Software and Technology, 2022

Shadowed Speech: an Audio Feedback System which Slows Down Speech Rate.
Proceedings of the Adjunct Publication of the 35th Annual ACM Symposium on User Interface Software and Technology, 2022

Detection of non-designated shelters by extracting population concentrated areas after a disaster (industrial paper).
Proceedings of the 30th International Conference on Advances in Geographic Information Systems, 2022

Janus Screen: Screen with Switchable Projection Surfaces Using Wire Grid Polarizer.
Proceedings of the CHI '22: CHI Conference on Human Factors in Computing Systems, New Orleans, LA, USA, 29 April 2022, 2022

Graph Neural Network Tells Us Who is the Communication Enhancer.
Proceedings of the IEEE International Conference on Big Data, 2022

Encouraging Crowd Avoidance Behavior using Dynamic Pricing Framework Towards Preventing the Spread of COVID-19.
Proceedings of the IEEE International Conference on Big Data, 2022

2021
Simulating the Effects of Eco-Friendly Transportation Selections for Air Pollution Reduction.
CoRR, 2021

Memory Efficient Adversarial Attacks on Graphs: A Winning Solution for KDD Cup 2020.
Proceedings of the Thirteenth International Conference on Mobile Computing and Ubiquitous Network, 2021

Estimating Patient Independence with Sleep Sensors.
Proceedings of the UbiComp/ISWC '21: 2021 ACM International Joint Conference on Pervasive and Ubiquitous Computing and 2021 ACM International Symposium on Wearable Computers, 2021

Disaster Damage Estimation from Real-time Population Dynamics using Graph Convolutional Network (Industrial Paper).
Proceedings of the SIGSPATIAL '21: 29th International Conference on Advances in Geographic Information Systems, 2021

Estimating Work Engagement from Online Chat Logs.
Proceedings of the AsianCHI '21: 5th Asian CHI Symposium, 2021

2020
Smartphone-based Mental State Estimation: A Survey from a Machine Learning Perspective.
J. Inf. Process., 2020

C-LIME: A Consistency-Oriented LIME for Time-Series Health-Risk Predictions.
Proceedings of the Knowledge Management and Acquisition for Intelligent Systems, 2020

Gravity of Location-Based Service: Analyzing the Effects for Mobility Pattern and Location Prediction.
Proceedings of the Fourteenth International AAAI Conference on Web and Social Media, 2020

Generic POI recommendation.
Proceedings of the UbiComp/ISWC '20: 2020 ACM International Joint Conference on Pervasive and Ubiquitous Computing and 2020 ACM International Symposium on Wearable Computers, 2020

2019
Local App Classification using Deep Neural Network based on Mobile App Market Data.
Proceedings of the 2019 IEEE International Conference on Pervasive Computing and Communications, 2019

Real-time On-Device Troubleshooting Recommendation for Smartphones.
Proceedings of the 25th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining, 2019

Automated inference of cognitive performance by fusing multimodal information acquired by smartphone.
Proceedings of the 2019 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2019 ACM International Symposium on Wearable Computers, 2019

Exploiting Graph Convolutional Networks for Representation Learning of Mobile App Usage.
Proceedings of the 2019 IEEE International Conference on Big Data (IEEE BigData), 2019

2018
Physiological Stress Level Estimation Based on Smartphone Logs.
Proceedings of the Eleventh International Conference on Mobile Computing and Ubiquitous Network, 2018

Analyzing the Relationship between Cognitive Performance and Time to Find Intended Mobile App.
Proceedings of the 2018 ACM International Joint Conference and 2018 International Symposium on Pervasive and Ubiquitous Computing and Wearable Computers, 2018

2017
Recognizing whether a person is eating alone or has company by using wearable devices.
Proceedings of the Tenth International Conference on Mobile Computing and Ubiquitous Network, 2017

CamTrackPoint: pointing stick for mobile device using rear camera.
Proceedings of the Adjunct Proceedings of the 2017 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2017 ACM International Symposium on Wearable Computers, 2017

2016
Multi-label categorizing local event information from micro-blogs.
Proceedings of the Ninth International Conference on Mobile Computing and Ubiquitous Networking, 2016

2015
Extracting local event information from micro-blogs for trip planning.
Proceedings of the Eighth International Conference on Mobile Computing and Ubiquitous Networking, 2015

2009
Efficient acquisition of light transport based on separation of direct and global components.
Proceedings of the International Conference on Computer Graphics and Interactive Techniques, 2009

2008
Efficient acquisition and rendering of transparent and refractive objects using quotient image.
Proceedings of the Conference on Three-Dimensional Image Capture and Applications 2008, 2008

2007
Computational lighting reproduction for facial live video with rigid facial motion.
Proceedings of the International Conference on Computer Graphics and Interactive Techniques, 2007

2006
Gonio-spectral based digital archiving and reproduction system for electronic museum.
Proceedings of the International Conference on Computer Graphics and Interactive Techniques, 2006


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