Hiroyuki Toda

According to our database, Hiroyuki Toda authored at least 87 papers between 2001 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Meta-Learning for Neural Network-based Temporal Point Processes.

Yoshiaki Takimoto, Yusuke Tanaka, Tomoharu Iwata, Maya Okawa, Hideaki Kim, Hiroyuki Toda, Takeshi Kurashima

CoRR, 2024

Understanding Human Mobility Characteristics Through Behavior and Corresponding Environmental Information.

Ryuichi Sudo, Hiroyuki Toda

Proceedings of the Database and Expert Systems Applications, 2024

Exploring of STGNN for Traffic Forecasting at Expanding Traffic Network.

Tomoki Kawabata, Hiroyuki Toda

Proceedings of the Database and Expert Systems Applications, 2024

2023

MAP inference algorithms without approximation for collective graphical models on path graphs via discrete difference of convex algorithm.

Yasunori Akagi, Naoki Marumo, Hideaki Kim, Takeshi Kurashima, Hiroyuki Toda

Mach. Learn., January, 2023

Inverse Problem of Censored Markov Chain: Estimating Markov Chain Parameters from Censored Transition Data.

Masahiro Kohjima, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the Advances in Knowledge Discovery and Data Mining, 2023

Personal History Affects Reference Points: A Case Study of Codeforces.

Takeshi Kurashima, Tomoharu Iwata, Tomu Tominaga, Shuhei Yamamoto, Hiroyuki Toda, Kazuhisa Takemura

Proceedings of the Seventeenth International AAAI Conference on Web and Social Media, 2023

2022

Context-aware spatio-temporal event prediction via convolutional Hawkes processes.

Maya Okawa, Tomoharu Iwata, Yusuke Tanaka, Takeshi Kurashima, Hiroyuki Toda, Hisashi Kashima

Mach. Learn., 2022

Classifying Near-Miss Traffic Incidents through Video, Sensor, and Object Features.

Shuhei Yamamoto, Takeshi Kurashima, Hiroyuki Toda

IEICE Trans. Inf. Syst., 2022

Aggregated Multi-output Gaussian Processes with Knowledge Transfer Across Domains.

Yusuke Tanaka, Toshiyuki Tanaka, Tomoharu Iwata, Takeshi Kurashima, Maya Okawa, Yasunori Akagi, Hiroyuki Toda

CoRR, 2022

Fast Bayesian Estimation of Point Process Intensity as Function of Covariates.

Hideaki Kim, Taichi Asami, Hiroyuki Toda

Proceedings of the Advances in Neural Information Processing Systems 35: Annual Conference on Neural Information Processing Systems 2022, 2022

Joint Modeling of Multi-Sample and Subband Signals for Fast Neural Vocoding on CPU.

Hiroki Kanagawa, Yusuke Ijima, Hiroyuki Toda

Proceedings of the 23rd Annual Conference of the International Speech Communication Association, 2022

2021

Parallel Sequential Random Embedding Bayesian Optimization.

Noriko Yokoyama, Masahiro Kohjima, Tatsushi Matsubayashi, Hiroyuki Toda

SN Comput. Sci., 2021

Time-delayed collective flow diffusion models for inferring latent people flow from aggregated data at limited locations.

Yusuke Tanaka, Tomoharu Iwata, Takeshi Kurashima, Hiroyuki Toda, Naonori Ueda, Toshiyuki Tanaka

Artif. Intell., 2021

Price and Time Optimization for Utility-Aware Taxi Dispatching.

Yuya Hikima, Masahiro Kohjima, Yasunori Akagi, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the PRICAI 2021: Trends in Artificial Intelligence, 2021

Non-approximate Inference for Collective Graphical Models on Path Graphs via Discrete Difference of Convex Algorithm.

Yasunori Akagi, Naoki Marumo, Hideaki Kim, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the Advances in Neural Information Processing Systems 34: Annual Conference on Neural Information Processing Systems 2021, 2021

Dynamic Hawkes Processes for Discovering Time-evolving Communities' States behind Diffusion Processes.

Maya Okawa, Tomoharu Iwata, Yusuke Tanaka, Hiroyuki Toda, Takeshi Kurashima, Hisashi Kashima

Proceedings of the KDD '21: The 27th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, 2021

Effects of Personal Characteristics on Temporal Response Patterns in Ecological Momentary Assessments.

Tomu Tominaga, Shuhei Yamamoto, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the Human-Computer Interaction - INTERACT 2021 - 18th IFIP TC 13 International Conference, Bari, Italy, August 30, 2021

Effects of Intervening Backwards from Goals to Improve Sleep Habits.

Masami Takahashi, Masahiro Kohjima, Ryo Hashimoto, Asuka Miyake, Takeshi Kurashima, Hiroyuki Toda

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

Asterisk-Shaped Features for Tabular Data.

Yuki Kurauchi, Yoshiaki Takimoto, Shuhei Yamamoto, Shunichi Seko, Hiroyuki Toda

Proceedings of the CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1, 2021

Integrated Optimization of Bipartite Matching and Its Stochastic Behavior: New Formulation and Approximation Algorithm via Min-cost Flow Optimization.

Yuya Hikima, Yasunori Akagi, Hideaki Kim, Masahiro Kohjima, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the Thirty-Fifth AAAI Conference on Artificial Intelligence, 2021

2020

Evaluation of the Severity of Major Depression Using a Voice Index for Emotional Arousal.

Shuji Shinohara, Hiroyuki Toda, Mitsuteru Nakamura, Yasuhiro Omiya, Masakazu Higuchi, Takeshi Takano, Taku Saito, Masaaki Tanichi, Shuken Boku, Shunji Mitsuyoshi, Mirai So, Aihide Yoshino, Shinichi Tokuno

Sensors, 2020

Probabilistic Optimal Transport based on Collective Graphical Models.

Yasunori Akagi, Yusuke Tanaka, Tomoharu Iwata, Takeshi Kurashima, Hiroyuki Toda

CoRR, 2020

Identifying Near-Miss Traffic Incidents in Event Recorder Data.

Shuhei Yamamoto, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the Advances in Knowledge Discovery and Data Mining, 2020

Learning with Labeled and Unlabeled Multi-Step Transition Data for Recovering Markov Chain from Incomplete Transition Data.

Masahiro Kohjima, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence, 2020

Can Reinforcement Learning Lead to Healthy Life?: Simulation Study Based on User Activity Logs.

Masami Takahashi, Masahiro Kohjima, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the 25th International Conference on Pattern Recognition, 2020

Censored Markov Decision Processes: A Framework for Safe Reinforcement Learning in Collaboration with External Systems.

Masahiro Kohjima, Masami Takahashi, Hiroyuki Toda

Proceedings of the 59th IEEE Conference on Decision and Control, 2020

Exact and Efficient Inference for Collective Flow Diffusion Model via Minimum Convex Cost Flow Algorithm.

Yasunori Akagi, Takuya Nishimura, Yusuke Tanaka, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the Thirty-Fourth AAAI Conference on Artificial Intelligence, 2020

2019

Personalized Visited-POI Assignment to Individual Raw GPS Trajectories.

Jun Suzuki, Yoshihiko Suhara, Hiroyuki Toda, Kyosuke Nishida

ACM Trans. Spatial Algorithms Syst., 2019

Marked Temporal Point Processes for Trip Demand Prediction in Bike Sharing Systems.

Maya Okawa, Yusuke Tanaka, Takeshi Kurashima, Hiroyuki Toda, Tomohiro Yamada

IEICE Trans. Inf. Syst., 2019

Coordinated Traffic Signal Control Via Bayesian Optimization for Hierarchical Conditional Spaces.

Hidetaka Ito, Kyota Tsutsumida, Tatsushi Matsubayashi, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the 2019 Winter Simulation Conference, 2019

Spatially Aggregated Gaussian Processes with Multivariate Areal Outputs.

Yusuke Tanaka, Toshiyuki Tanaka, Tomoharu Iwata, Takeshi Kurashima, Maya Okawa, Yasunori Akagi, Hiroyuki Toda

Proceedings of the Advances in Neural Information Processing Systems 32: Annual Conference on Neural Information Processing Systems 2019, 2019

Discrimination of Bipolar Disorders Using Voice.

Masakazu Higuchi, Mitsuteru Nakamura, Shuji Shinohara, Yasuhiro Omiya, Takeshi Takano, Hiroyuki Toda, Taku Saito, Aihide Yoshino, Shunji Mitsuyoshi, Shinichi Tokuno

Proceedings of the Pervasive Computing Paradigms for Mental Health, 2019

Deep Mixture Point Processes: Spatio-temporal Event Prediction with Rich Contextual Information.

Maya Okawa, Tomoharu Iwata, Takeshi Kurashima, Yusuke Tanaka, Hiroyuki Toda, Naonori Ueda

Proceedings of the 25th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining, 2019

Generalized Interval Valued Nonnegative Matrix Factorization.

Masahiro Kohjima, Tatsushi Matsubayashi, Hiroyuki Toda

Proceedings of the IEEE International Conference on Acoustics, 2019

Identifying self-changeable actions toward regulating rhythm of daily life.

Masami Takahashi, Masahiro Kohjima, Takeshi Kurashima, Tatsushi Matsubayashi, Hiroyuki Toda

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

Predicting Traffic Accidents with Event Recorder Data.

Yoshiaki Takimoto, Yusuke Tanaka, Takeshi Kurashima, Shuhei Yamamoto, Maya Okawa, Hiroyuki Toda

Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Prediction of Human Mobility, 2019

People Flow Prediction by Multi-Agent Simulator.

Daisuke Sato, Tatsushi Matsubayashi, Shoichi Nagano, Hiroyuki Toda

Proceedings of the IEEE International Conference on Big Data and Smart Computing, 2019

Efficient Bayesian Optimization Based on Parallel Sequential Random Embeddings.

Noriko Yokoyama, Masahiro Kohjima, Tatsushi Matsubayashi, Hiroyuki Toda

Proceedings of the Pattern Recognition - 5th Asian Conference, 2019

Exemplar Based Mixture Models with Censored Data.

Masahiro Kohjima, Tatsushi Matsubayashi, Hiroyuki Toda

Proceedings of The 11th Asian Conference on Machine Learning, 2019

Refining Coarse-Grained Spatial Data Using Auxiliary Spatial Data Sets with Various Granularities.

Yusuke Tanaka, Tomoharu Iwata, Toshiyuki Tanaka, Takeshi Kurashima, Maya Okawa, Hiroyuki Toda

Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence, 2019

2018

Time-Series Predictions for People-Flow with Simulation Data.

Hengjin Tang, Tatsushi Matsubayashi, Daisuke Sato, Hiroyuki Toda

Proceedings of the PRIMA 2018: Principles and Practice of Multi-Agent Systems - 21st International Conference, Tokyo, Japan, October 29, 2018

Multi Agent Flow Estimation Based on Bayesian Optimization with Time Delay and Low Dimensional Parameter Conversion.

Hiroshi Kiyotake, Masahiro Kohjima, Tatsushi Matsubayashi, Hiroyuki Toda

Proceedings of the PRIMA 2018: Principles and Practice of Multi-Agent Systems - 21st International Conference, Tokyo, Japan, October 29, 2018

Variational Bayes for Mixture Models with Censored Data.

Masahiro Kohjima, Tatsushi Matsubayashi, Hiroyuki Toda

Proceedings of the Machine Learning and Knowledge Discovery in Databases, 2018

Estimating Latent People Flow without Tracking Individuals.

Yusuke Tanaka, Tomoharu Iwata, Takeshi Kurashima, Hiroyuki Toda, Naonori Ueda

Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence, 2018

A Fast and Accurate Method for Estimating People Flow from Spatiotemporal Population Data.

Yasunori Akagi, Takuya Nishimura, Takeshi Kurashima, Hiroyuki Toda

Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence, 2018

Feasibility Study for Estimation of Depression Severity using Voice Analysis.

Mitsuteru Nakamura, Shuji Shinohara, Yasuhiro Omiya, Masakazu Higuchi, Shunji Mitsuyoshi, Takeshi Takano, Hiroyuki Toda, Taku Saito, Masaaki Tanichi, Aihide Yoshino, Shinichi Tokuno

Proceedings of the IEEE International Conference on Bioinformatics and Biomedicine, 2018

2017

Social media knows what road it is: quantifying road characteristics with geo-tagged posts.

Takuya Nishimura, Kyosuke Nishida, Hiroyuki Toda, Hiroshi Sawada

Soc. Netw. Anal. Min., 2017

Predicting Destinations from Partial Trajectories Using Recurrent Neural Network.

Yuki Endo, Kyosuke Nishida, Hiroyuki Toda, Hiroshi Sawada

Proceedings of the Advances in Knowledge Discovery and Data Mining, 2017

PBG at the NTCIR-13 Lifelog-2 LAT, LSAT, and LEST Tasks.

Shuhei Yamamoto, Takuya Nishimura, Yasunori Akagi, Yoshiaki Takimoto, Takafumi Inoue, Hiroyuki Toda

Proceedings of the 13th NTCIR Conference, 2017

Online Traffic Flow Prediction Using Convolved Bilinear Poisson Regression.

Maya Okawa, Hideaki Kim, Hiroyuki Toda

Proceedings of the 18th IEEE International Conference on Mobile Data Management, 2017

2016

Classifying spatial trajectories using representation learning.

Yuki Endo, Hiroyuki Toda, Kyosuke Nishida, Jotaro Ikedo

Int. J. Data Sci. Anal., 2016

Semantic sensitive tensor factorization.

Makoto Nakatsuji, Hiroyuki Toda, Hiroshi Sawada, Jinguang Zheng, James A. Hendler

Artif. Intell., 2016

Deep Feature Extraction from Trajectories for Transportation Mode Estimation.

Yuki Endo, Hiroyuki Toda, Kyosuke Nishida, Akihisa Kawanobe

Proceedings of the Advances in Knowledge Discovery and Data Mining, 2016

How fashionable is each street?: Quantifying road characteristics using social media.

Takuya Nishimura, Kyosuke Nishida, Hiroyuki Toda, Hiroshi Sawada

Proceedings of the 2016 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, 2016

2015

Assessment of Tweet Credibility with LDA Features.

Jun Ito, Jing Song, Hiroyuki Toda, Yoshimasa Koike, Satoshi Oyama

Proceedings of the 24th International Conference on World Wide Web Companion, 2015

What's Hot in The Theme: Query Dependent Emerging Topic Extraction from Social Streams.

Yuki Endo, Hiroyuki Toda, Yoshimasa Koike

Proceedings of the 24th International Conference on World Wide Web Companion, 2015

Assigning Tasks to Workers by Referring to Their Schedules in Mobile Crowdsourcing.

Mayumi Hadano, Makoto Nakatsuji, Hiroyuki Toda, Yoshimasa Koike

Proceedings of the Third AAAI Conference on Human Computation and Crowdsourcing, 2015

2014

Demographic and Psychographic Estimation of Twitter Users Using Social Structures.

Jun Ito, Kyosuke Nishida, Takahide Hoshide, Hiroyuki Toda, Tadasu Uchiyama

Proceedings of the Online Social Media Analysis and Visualization, 2014

Probabilistic identification of visited point-of-interest for personalized automatic check-in.

Kyosuke Nishida, Hiroyuki Toda, Takeshi Kurashima, Yoshihiko Suhara

Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing, 2014

Motivation System Using Purpose-for-Action.

Noriko Yokoyama, Kaname Funakoshi, Hiroyuki Toda, Yoshimasa Koike

Proceedings of the Database and Expert Systems Applications, 2014

Semantic Data Representation for Improving Tensor Factorization.

Makoto Nakatsuji, Yasuhiro Fujiwara, Hiroyuki Toda, Hiroshi Sawada, Jinguang Zheng, James A. Hendler

Proceedings of the Twenty-Eighth AAAI Conference on Artificial Intelligence, 2014

2013

Automatically generated spam detection based on sentence-level topic information.

Yoshihiko Suhara, Hiroyuki Toda, Shuichi Nishioka, Seiji Susaki

Proceedings of the 22nd International World Wide Web Conference, 2013

What is he/she like?: estimating Twitter user attributes from contents and social neighbors.

Jun Ito, Takahide Hoshide, Hiroyuki Toda, Tadasu Uchiyama, Kyosuke Nishida

Proceedings of the Advances in Social Networks Analysis and Mining 2013, 2013

A Probabilistic Model for Diversifying Recommendation Lists.

Yutaka Kabutoya, Tomoharu Iwata, Hiroyuki Toda, Hiroyuki Kitagawa

Proceedings of the Web Technologies and Applications - 15th Asia-Pacific Web Conference, 2013

Snippet Generation by Identifying Attribute Associated Information.

Yoko Tanaka, Yoshihiko Suhara, Nobuaki Hiroshima, Hiroyuki Toda, Seiji Susaki

Proceedings of the Information Retrieval Technology, 2013

2012

Collaborative Filtering by Analyzing Dynamic User Interests Modeled by Taxonomy.

Makoto Nakatsuji, Yasuhiro Fujiwara, Toshio Uchiyama, Hiroyuki Toda

Proceedings of the Semantic Web - ISWC 2012, 2012

2010

Proposal of a method to analyze 3D deformation/fracture characteristics inside materials based on a stratified matching approach.

Mitsuru Nakazawa, Masakazu Kobayashi, Hiroyuki Toda, Yoshimitsu Aoki

Mach. Vis. Appl., 2010

Detecting periodic changes in search intentions in a search engine.

Masaya Murata, Hiroyuki Toda, Yumiko Matsuura, Ryoji Kataoka, Takayoshi Mochizuki

Proceedings of the 19th ACM Conference on Information and Knowledge Management, 2010

2009

Access concentration detection in click logs to improve mobile Web-IR.

Masaya Murata, Hiroyuki Toda, Yumiko Matsuura, Ryoji Kataoka

Inf. Sci., 2009

Query-page intention matching using clicked titles and snippets to boost search rankings.

Masaya Murata, Hiroyuki Toda, Yumiko Matsuura, Ryoji Kataoka

Proceedings of the 2009 Joint International Conference on Digital Libraries, 2009

Geographic information retrieval to suit immediate surroundings.

Hiroyuki Toda, Norihito Yasuda, Yumiko Matsuura, Ryoji Kataoka

Proceedings of the 17th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems, 2009

2008

Improving Mobile Web-IR Using Access Concentration Sites in Search Results.

Masaya Murata, Hiroyuki Toda, Yumiko Matsuura, Ryoji Kataoka

Proceedings of the Web Information Systems Engineering, 2008

Topic structure mining using temporal co-occurrence.

Hiroyuki Toda, Hiroyuki Kitagawa, Ko Fujimura, Ryoji Kataoka

Proceedings of the 2nd International Conference on Ubiquitous Information Management and Communication, 2008

Extracting related named entities from blogosphere for event mining.

Yoshihiko Suhara, Hiroyuki Toda, Akito Sakurai

Proceedings of the 2nd International Conference on Ubiquitous Information Management and Communication, 2008

3D image analysis for evaluating internal deformation/fracture characteristics of materials.

Mitsuru Nakazawa, Yoshimitsu Aoki, Masakazu Kobayashi, Hiroyuki Toda

Proceedings of the 19th International Conference on Pattern Recognition (ICPR 2008), 2008

Ranking Entities Using Comparative Relations.

Takeshi Kurashima, Katsuji Bessho, Hiroyuki Toda, Toshio Uchiyama, Ryoji Kataoka

Proceedings of the Database and Expert Systems Applications, 19th International Conference, 2008

Incorporating place name extents into geo-ir ranking.

Hiroyuki Toda, Norihito Yasuda, Yumiko Matsuura, Ryoji Kataoka

Proceedings of the 17th ACM Conference on Information and Knowledge Management, 2008

2007

Search Result Clustering Using Informatively Named Entities.

Hiroyuki Toda, Ryoji Kataoka, Masahiro Oku

Int. J. Hum. Comput. Interact., 2007

Distributed PMD Compensation Experiment Using Polarizers.

Hiroyuki Toda, Masaki Nara, Masayuki Matsumoto, Daniele Alzetta

IEICE Trans. Commun., 2007

Event mining from the Blogosphere using topic words.

Yoshihiko Suhara, Hiroyuki Toda, Akito Sakurai

Proceedings of the First International Conference on Weblogs and Social Media, 2007

Creating Personal Histories from the Web Using Namesake Disambiguation and Event Extraction.

Rui Kimura, Satoshi Oyama, Hiroyuki Toda, Katsumi Tanaka

Proceedings of the Web Engineering, 7th International Conference, 2007

2006

Topic Structure Mining Using PageRank Without Hyperlinks.

Hiroyuki Toda, Ko Fujimura, Ryoji Kataoka, Hiroyuki Kitagawa

Proceedings of the Digital Libraries: Achievements, 2006

Topic Structure Mining for Document Sets Using Graph-Based Analysis.

Hiroyuki Toda, Ryoji Kataoka, Hiroyuki Kitagawa

Proceedings of the Database and Expert Systems Applications, 17th International Conference, 2006

2005

A clustering method for news articles retrieval system.

Hiroyuki Toda, Ryoji Kataoka

Proceedings of the 14th international conference on World Wide Web, 2005

A search result clustering method using informatively named entities.

Hiroyuki Toda, Ryoji Kataoka

Proceedings of the Seventh ACM International Workshop on Web Information and Data Management (WIDM 2005), 2005

Search Result Clustering Method at NTCIR-5 Web Query Expansion Subtask.

Hiroyuki Toda, Ryoji Kataoka

Proceedings of the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, 2005

2001

Goal-Oriented Information Retrieval Using Feedback from Users.

Hiroyuki Toda, Toshifumi Enomoto, Tetsuji Satoh

Proceedings of the Advances in Web-Age Information Management, 2001