• Selected Journal/Conference Papers
• Book, ETC

• Google Scholar
• DBLP

Selected Journal/Conference Papers

• Paul Yoo, Jiaxian Guo, Yutaka Matsuo, Shixiang Shane Gu. “DreamSparse: Escaping from Plato’s Cave with 2D Frozen Diffusion Model given Sparse Views”, Advances in Neural Information Processing Systems 2023 (NeurIPS2023). December 2023.
• Hiroki Furuta, Yusuke Iwasawa, Yutaka Matsuo, and Shixiang Shane Gu. “A System for Morphology-Task Generalization via Unified Representation and Behavior Distillation”, International Conference on Learning Representations 2023 (ICLR2023, notable-top-25%). May 2023.
• Takeshi Kojima, Yutaka Matsuo, and Yusuke Iwasawa. “Robustifying Vision Transformer without Retraining from Scratch by Test-Time Class-Conditional Feature Alignment”, the 31st International Joint Conference on Artificial Intelligence and the 25th European Conference on Artificial Intelligence (IJCAI-ECAI 2022)
• Hiroki Furuta, Yutaka Matsuo, and Shixiang Shane Gu. “Generalized Decision Transformer for Offline Hindsight Infomation Matching”, International Conference on Learning Representations 2022 (ICLR2022, Spotlight). April 2022.
• Tatsuya Matsushima, Yuki Noguchi, Jumpei Arima, Toshiki Aoki, Yuki Okita, Yuya Ikeda, Koki Ishimoto, Shohei Taniguchi, Yuki Yamashita, Shoichi Seto, Shixiang Shane Gu, Yusuke Iwasawa, Yutaka Matsuo. “World robot challenge 2020 – partner robot: a data-driven approach for room tidying with mobile manipulator”, Advanced Robotics. Vol. 36, No. 17-18, pp 850-869, (2022).
• Masahiro Suzuki, Yutaka Matsuo: A survey of multimodal deep generative models, Advanced Robotics.(2022)
• Yusuke Iwasawa, and Yutaka Matsuo. “Test-Time Classifier Adjustment Module for Model-Agnostic Domain Generalization”, Advances in Neural Information Processing Systems 2021 (NeurIPS2021, Spotlight). December 2021.
• Hiroki Furuta, Tadashi Kozuno, Tatsuya Matsushima, Yutaka Matsuo, and Shixiang Shane Gu. “Co-Adaptation of Algorithmic and Implementational Innovations in Inference-based Deep Reinforcement Learning”, Advances in Neural Information Processing Systems 2021 (NeurIPS2021). December 2021.
• Machel Reid, Junjie Hu, Graham Neubig and Yutaka Matsuo. “AfroMT: Pretraining Strategies and Reproducible Benchmarks for Translation of 8 African Languages”, The 2021 Conference on Empirical Methods in Natural Language Processing (EMNLP 2021). November 2021. Association for Computational Linguistics.
• Machel Reid, Edison Marrese-Taylor and Yutaka Matsuo. “Subformer: Exploring Weight Sharing for Parameter Efficiency in Generative Transformers”, Findings of The 2021 Conference on Empirical Methods in Natural Language Processing (Findings of EMNLP 2021). November 2021. Association for Computational Linguistics.
• Hiroki Furuta, Tatsuya Matsushima, Tadashi Kozuno, Yutaka Matsuo, Sergey Levine, Ofir Nachum, and Shixiang Shane Gu. “Policy Information Capacity: Information-Theoretic Measure for Task Complexity in Deep Reinforcement Learning”, International Conference on Machine Learning 2021 (ICML2021). July 2021.
• Kei Akuzawa, Yusuke Iwasawa, Yutaka Matsuo. Estimating Disentangled Belief about Hidden State and Hidden Task for Meta-Reinforcement Learning. Learning for Dynamics and Control (L4DC). June 2021.
• Makoto Kawano, Wataru Kumagai, Akiyoshi Sannai, Yusuke Iwasawa, Yutaka Matsuo. "Group Equivariant Conditional Neural Processes". Proceedings ICLR 2021, 2021
• Tatsuya Matsushima, Hiroki Furuta, Yutaka Matsuo, Ofir Nachum, Shixiang Gu, "Deployment-Efficient Reinforcement Learning via Model-Based Offline Optimization", Proceedings ICLR 2021, 2021
• Edison Marrese-Taylor, Machel Reid and Yutaka Matsuo. Variational Inference for Learning Representations of Natural Language Edits. Proceedings The Thirty-Fifth AAAI Conference on Artificial Intelligence (AAAI-21). February 2021.
• Tatsuya Matsushima, Naruya Kondo, Yusuke Iwasawa, Kaoru Nasuno, Yutaka Matsuo: Modeling Task Uncertainty for Safe Meta-imitation Learning, Frontiers in Robotics and AI, Vol. 7, pp.189, 2020
• Keiichi Ochiai, Yusuke Fukazawa, Wataru Yamada, Hiroyuki Manabe, Yutaka Matsuo: Gravity of Location-based Service: Analyzing the Effects for Mobility Pattern and Location Prediction, Proceedings the International AAAI Conference on Web and Social Media, 14(1), pp.476-487, 2020
• Tatsuya Matsushima, Hiroki Furuta, Yutaka Matsuo, Ofir Nachum, and Shixiang Shane Gu. “Deployment-Efficient Reinforcement Learning via Model-Based Offline Optimization”, Bay Area Machine Learning Symposium 2020 (BayLearn2020). October 2020.
• Machel Reid, Edison Marrese-Taylor, and Yutaka Matsuo. “VCDM: Leveraging Variational Bi-encoding and Deep Contextualized Word Representations for Improved Definition Modeling”, Proceedings The 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP 2020). November 2020.
• Yusuke Iwasawa, Kei Akuzawa, Yutaka Matsuo, “Stabilizing Adversarial Invariance Induction from Divergence Minimization Perspective”, Proc. IJCAI2020
• Rúben Geraldes, Artur Goncalves, Tin Lai, Mathias Villerabel, Wenlong Deng, Ana Salta, Kotaro Nakayama, Yutaka Matsuo, Helmut Prendinger: UAV-Based Situational Awareness System Using Deep Learning. IEEE Access 7: 122583-122594, 2019
• Juan Jose Rubio, Takahiro Kashiwa, Teera Laiteerapong, Wenlong Deng, Kohei Nagai, Sergio Escalera, Kotaro Nakayama, Yutaka Matsuo, Helmut Prendinger: Multi-class structural damage segmentation using fully convolutional networks. Comput. Ind. 112, 2019
• Ikuko Eguchi Yairi, Hiroki Takahashi, Takumi Watanabe, Kouya Nagamine, Yusuke Fukushima, Yutaka Matsuo, Yusuke Iwasawa: Estimating Spatiotemporal Information from Behavioral Sensing Data of Wheelchair Users by Machine Learning Technologies. Inf. 10(3): 114,　2019
• Hiromi Nakagawa, Yusuke Iwasawa, Yutaka Matsuo, Graph-based Knowledge Tracing: Modeling Student Proficiency Using Graph Neural Network, Proc. 2019 IEEE/WIC/ACM Web Intelligence (WI 2019), 2019. (Best Student Paper Award)
• Kei Akuzawa, Yusuke Iwasawa, and Yutaka Matsuo. Adversarial Invariant Feature Learning with Accuracy Constraint for Domain Generalization. ECMLPKDD, 2019
• Keiichi Ochiai, Yusuke Fukazawa, Wataru Yamada, Hiroyuki Manabe, Yutaka Matsuo: Analyzing the Effects of Location-based Service for Mobility Pattern and Location Prediction, The 13th International AAAI Conference on Weblogs and Social Media (ICWSM 2019), June 2019, Poster.
• Pablo Loyola, Edison Marrese-Taylor, Jorge A. Balazs, Yutaka Matsuo and Fumiko Satoh. Content Aware Source Code Change Description Generation. In Proceedings of the 11th International Conference on Natural Language Generation (INLG). Tillburg, The Netherlands, November 2018. Association for Computational Linguistics.
• Kei Akuzawa, Yusuke Iwasawa, Yutaka Matsuo: Expressive Speech Synthesis via Modeling Expressions with Variational Autoencoder, Interspeech, 2018
• Masaru Isonuma, Toru Fujino, Junichiro Mori, Yutaka Matsuo and Ichiro Sakata: Extractive Summarization Using Multi-Task Learning with Document Classification, Proc. EMNLP 2017, 2017
• Yusuke Iwasawa, Kotaro Nakayama, Ikuko Yairi, and Yutaka Matsuo: Privacy Issues Regarding the Application of DNNs to Activity-Recognition using Wearables and Its Countermeasures by Use of Adversarial Training, Proc. IJCAI 2017, 2017
• Shuhei Iitsuka, Masashi Hamano, Kazuya Kawakami, Seigen Hagiwara, Takayoshi Kawakami, Takayuki Hamada, and Yutaka Matsuo: Inferring Win–Lose Product Network from User Behavior, Proc. WI'17, 2017
• Pablo Loyola, Yutaka Matsuo: Learning graph representations for defect prediction. Proc. ICSE 2017, pp. 265-267, 2017
• Yusuke Iwasawa, Ikuko Yairi, and Yutaka Matsuo: Combining Human Action Sensing of Wheelchair Users and Machine Learning for Autonomous Accessibility Data Collection. IEICE Transactions, Vol.99-D, No.4, pp.1153-1161, 2016
• Pablo Loyola, Francisco Szederkenyi, and Yutaka Matsuo: Using the Web to Support Political Analysis: Identifying Legislative Bill Ideology in the Chilean Parliament. Proc. 8th ACM Conference on Web Science (WebSci 2016), pp. 190-199, 2016
• Pablo Loyola, Yutaka Matsuo and Francisco Szederkenyi: A Web-centric Approach to Support Legislative Bill Analysis: A Case of Study of the Chilean Parliament, Proc. ACM Web Science 2016, 2016
• Shuhei Iitsuka, Yutaka Matsuo: Website Optimization Problem and Its Solutions, Proc. 21st ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD2015), 2015
• Rahul Kamath, Masanao Ochi, and Yutaka Matsuo: Understanding Rating Behavior and Predicting Ratings by Identifying Representative Users. Proc. 29th Pacific Asia Conference on Language, Information and Computation (PACLIC 29), 2015
• Yusuke Iwasawa, Koya Nagamine, Yutaka Matsuo, and Ikuko Eguchi Yairi: Road Sensing: Personal Sensing and Machine Learning for Development of Large Scale Accessibility Map. Proc. 17th International ACM SIGACCESS Conference on Computers & Accessibility (ASSETS 2015), pp.335-336, 2015
• Yusuke Iwasawa, Kouya Nagamine, Ikuko Eguchi Yairi, and Yutaka Matsuo: Toward an Automatic Road Accessibility Information Collecting and Sharing Based on Human Behavior Sensing Technologies of Wheelchair Users. Proc. 6th International Conference on Emerging Ubiquitous Systems and Pervasive Networks (EUSPN 2015)/ 5th International Conference on Current and Future Trends of Information and Communication Technologies in Healthcare (ICTH-2015), pp.74-81, 2015
• Koya Nagamine, Yusuke Iwasawa, Yutaka Matsuo, and Ikuko Eguchi Yairi: An Estimation of Wheelchair User's Muscle Fatigue by Accelerometers on Smart Devices. Proc. 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing and 2015 ACM International Symposium on Wearable Computers (UbiComp/ISWC) Adjunct, pp.57-60, 2015
• Kotaro Nakayama, Yutaka Matsuo: MIGSOM: A SOM Algorithm for Large Scale Hyperlinked Documents Inspired by Neuronal Migration. DASFAA (1) , 79-94, 2014
• Takeshi Sakaki, Makoto Okazaki, and Yutaka Matsuo: Tweet analysis for realtime event detection and earthquake reporting system development, IEEE Transactions on Knowledge and Data Engineering, Vol. 25, No. 4, pp. 919-931, 2013
• Danushka Bollegala, Yutaka Matsuo, and Mitsuru Ishizuka: Minimally Supervised Novel Relation Extraction Using a Latent Relational Mapping, IEEE Transaction on Knowledge and Data Engineering, Vol. 25, No. 2, pp. 419-432, 2013
• Edison Marrese-Taylor, Juan D. Velásquez, Felipe Bravo-Marquez, Yutaka Matsuo: Identifying Customer Preferences about Tourism Products Using an Aspect-based Opinion Mining Approach. Proc. 17th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems (KES 2013), pp. 182-191, 2013
• Shohei Ohsawa, Yutaka Matsuo: Like prediction: modeling like counts by bridging facebook pages with linked data. Proc. 22nd International World Wide Web Conference (WWW2013) , pp. 541-548, 2013
• Rui Pan, Masanao Ochi, and Yutaka Matsuo: Discovering Behavior Patterns from Social Data for Managing Personal Life. AAAI Spring Symposium: Data Driven Wellness 2013, AAAI Technical Report SS-13-03, 2013
• Takeshi Sakaki, Fujio Toriumi, Kousuke Shinoda, Kazuhiro Kazama, Satoshi Kurihara, Itsuki Noda, Yutaka Matsuo: Regional analysis of user interactions on social media in times of disaster, Proc. 22nd International World Wide Web Conference (WWW2013) , pp. 235-236, 2013
• Danushka Bollegala, Yutaka Matsuo, Mitsuru Ishizuka: Automatic Annotation of Ambiguous Personal Names on the Web. Computational Intelligence 28(3): 398-425, 2012
• Danushka Bollegala, Yutaka Matsuo, Mitsuru Ishizuka: Measuring the Degree of Synonymy between Words Using Relational Similarity between Word Pairs as a Proxy. IEICE Transactions 95-D(8): 2116-2123, 2012
• Yingzi Jin, Ching-Yung Lin, Yutaka Matsuo, Mitsuru Ishizuka: Mining dynamic social networks from public news articles for company value prediction. Social Netw. Analys. Mining 2(3): 217-228, 2012
• Masanao Ochi, Yutaka Matsuo, Makoto Okabe, and Rikio Onai, Rating Prediction by Correcting User Review Bias, Proc. 2012 IEEE/WIC/ACM Web Intelligence (WI 2012), 2012
• Takeshi Sakaki, Yutaka Matsuo, Tadashi Yanagihara, Naiwala Chandrasiri, and Kazunari Nawa.Real-time event extraction for driving information from social sensors, Proc. IEEE International Conference on Cyber Technology in Automation, Control, and Intelligient Systems, 2012
• Danushka Bollegala, Yutaka Matsuo, Mitsuru Ishizuka: A Supervised Classification Approach for Measuring Relational Similarity between Word Pairs. IEICE Transactions 94-D(11): 2227-2233, 2011
• Danushka Bollegala, Yutaka Matsuo, Mitsuru Ishizuka: Automatic Discovery of Personal Name Aliases from the Web. IEEE Trans. Knowl. Data Eng. 23(6): 831-844, 2011
• Danushka Bollegala, Yutaka Matsuo, Mitsuru Ishizuka: A Web Search Engine-Based Approach to Measure Semantic Similarity between Words. IEEE Trans. Knowl. Data Eng. 23(7): 977-990, 2011
• Yutaka Matsuo: Social Network Mining for People Search, Proc. International Conference on Advances in Social Networks Analysis and Mining (ASONAM), 2011
• Kotaro Nakayama, Yutaka Matsuo: A self organizing document map algorithm for large scale hyperlinked data inspired by neuronal migration, Proc. 20th International World Wide Web Conference (WWW2011), pp.95-96, 2011
• Danushka Bollegala, Yutaka Matsuo, Mitsuru Ishizuka: From actors, politicians, to CEOs: domain adaptation of relational extractors using a latent relational mapping, Proc. 20th International World Wide Web Conference (WWW2011), pp.13-14, 2011
• Yingzi Jin, Ching-Yung Lin, Yutaka Matsuo, Mitsuru Ishizuka: Mining Longitudinal Network for Predicting Company Value, Proc. 22nd International Joint Conference on Artificial Intelligence (IJCAI2011), pp.2268-2273, 2011
• Danushka Bollegala, Yutaka Matsuo, Mitsuru Ishizuka: Relation Adaptation: Learning to Extract Novel Relations with Minimum Supervision, Proc. 22nd International Joint Conference on Artificial Intelligence (IJCAI2011), pp.2205-2210, 2011
• Naoki Tani, Danushka Bollegala, Naiwala P. Chandrasiri, Keisuke Okamoto, Kazunari Nawa, Shuhei Iitsuka, Yutaka Matsuo: Collaborative exploratory search in real-world context. Proc. CIKM 2011: 2137-214, 2011
• Haibo Li, Yutaka Matsuo, and Mitsuru Ishizuka: Graph based Multi-View Learning for Semantic Relation Extraction, International Journal of Semantic Computing, 2010
• Yingzi Jin, Yutaka Matsuo, Mitsuru Ishizuka: Mining and Analyzing Social Networks, Studies in Computational Intelligence Volume 288, pp 107-123, 2010
• Tadanobu Furukawa, Seishi Okamoto, Yutaka Matsuo, Mitsuru Ishizuka: Prediction of social bookmarking based on a behavior transition model. Proc. 2010 ACM Symposium on Applied Computing (SAC), pp. 1741-1747, 2010
• Haibo Li, Yutaka Matsuo, Mitsuru Ishizuka: Relations Expansion: Extracting Relationship Instances from the Web, Proc. Web Intelligence, pp. 184-187, 2010
• Haibo Li, Yutaka Matsuo, Mitsuru Ishizuka: Semantic Relation Extraction Based on Semi-supervised Learning, Proc. 6th Asia Information Retrieval Societies Conference (AIRS) , pp. 270-279, 2010
• Yulan Yan, Haibo Li, Yutaka Matsuo, Zhenglu Yang, Mitsuru Ishizuka: Multi-View Clustering with Web and Linguistic Features for Relation Extraction, Proc. 12th International Asia-Pacific Web Conference (APWeb-2010), April 2010.
• Yulan Yan, Haibo Li, Yutaka Matsuo, Mitsuru Ishizuka: Multi-View Bootstrapping for Relation Extraction by Exploring Web Features and Linguistic Features, Proc. 11th International Conference on Intelligent Text Processing and Computational Linguistics (CICLing-2010), March 2010.
• Takeshi Sakaki, Yutaka Matsuo: How to Become Famous in the Microblog World. Proc. International Conference on Weblogs and Social Media (ICWSM), 2010
• Takeshi Sakaki, Makoto Okazaki, and Yutaka Matsuo: Earthquake Shakes Twitter Users: Real-time Event Detection by Social Sensors, Proc. 18th International World Wide Web Conference (WWW2010), April 2010
• Danushka Bollegala, Yutaka Matsuo and Mitsuru Ishizuka: Relational Duality: Unsupervised Extraction of Semantic Relations between Entities on the Web, Proc. 18th International World Wide Web Conference (WWW2010), April 2010
• Yulan Yan, Yutaka Matsuo, Mitsuru Ishizuka: A New Shallow Semantic Parser for Describing the Concept Structure of Text, International Journal of Semantic Computing, 2009
• Junichiro Mori, Yutaka Matsuo, Hitoshi Koshiba, Kenro Aihara, Hideaki Takeda: Predicting Customer Models Using Behavior-Based Features in Shops. Proc. 17th International Conference (UMAP), pp.126-137, 2009
• Yingzi Jin, Yutaka Matsuo, and Mitsuru Ishizuka: Ranking Learning on the Web by Integrating Network-Based Features, Proc. International Conference on Advances in Social Networks Analysis and Mining (ASONAM), 2009
• Danushka Bollegala, Yutaka Matsuo and Mitsuru Ishizuka: A Relational Model of Semantic Similarity between Words using Automatically Extracted Lexical Pattern Clusters from the Web, Proc. Conference on Empirical Methods in Natural Language Processing (EMNLP 2009), August 2009
• Yulan Yan, Yutaka Matsuo and Mitsuru Ishizuka: Unsupervised Relation Extraction by Mining Wikipedia Texts with Support from Web Corpus, Proc. the Joint conference of the 47th Annual Meeting of the Association for Computational Linguistics and the 4th International Joint Conference on Natural Language Processing of the Asian Federation of Natural Language Processing (ACL-IJCNLP 2009), August 2009
• Danushka Bollegala, Yutaka Matsuo, and Mitsuru Ishizuka: Measuring the Similarity between Implicit Semantic Relations from the Web, Proc. 18th International World Wide Web Conference (WWW2009), April 2009
• Yutaka Matsuo and Hikaru Yamamoto: Community Gravity: Measuring Bidirectional Effects by Trust and Rating on Online Social Networks, Proc. 18th International World Wide Web Conference (WWW2009), April 2009
• Danushka Bollegala, Yutaka Matsuo, and Mitsuru Ishizuka: Measuring the Similarity between Implicit Semantic Relations using Web Search Engines, Proc. 2nd International Conference on Web Search and Data Mining (WSDM 2009), February 2009
• Yingzi Jin, Yutaka Matsuo, and Mitsuru Ishizuka: Extracting Inter-Firm Networks from World Wide Web Using General-Purpose Search Engine, Journal of Online Information Review, Vol 32, no. 2, pp.196-210, 2008
• Yulan Yan, Yutaka Matsuo, Mitsuru Ishizuka and Toshio Yokoi: Annotation an Extension Layer of Semantic Structure for Natural Language Text, Proc. 2nd IEEE International Conference on Semantic Computing (ICSC), pp.174-181, Santa Clara, CA, USA, August 2008
  
• Danushka Bollegala, Yutaka Matsuo, and Mitsuru Ishizuka: WWW sits the SAT: Measuring Relational Similarity from the Web, Proc. 18th European Conference on Artificial Intelligence (ECAI 2008), August 2008
• Jun Karamon, Yutaka Matsuo, and Mitsuru Ishizuka: Generating Useful Network-based Features for Analyzing Social Networks, Proc. 23rd Conference on Artificial Intelligence (AAAI-08), July 2008
• Mizuki Oka and Yutaka Matsuo: Mining Scholarly Semantic Networks from the Web, Proc. 12th International Conference Information Visualisation (IV08), July 2008
• Danushka Bollegala, Yutaka Matsuo, and Mitsuru Ishizuka: Mining for Personal Name Aliases on the Web, poster, Proc. 17th International World Wide Web Conference (WWW2008), April 2008
• Tadanobu Furukawa, Yutaka Matsuo, Ikki Ohmukai, Koki Uchiyama, and Mitsuru Ishizuka: Extracting Topics and Innovators Using Topic Diffusion Process in Weblogs, poster, Proc. International Conference on Weblogs and Social Media (ICWSM), March 2008
• Yulan Yan, Yutaka Matsuo, Mitsuru Ishizuka, and Toshio Yokoi: Relation Classification for Semantic Structure Annotation of Text. Proc. 2008 IEEE/WIC/ACM International Conference on Web Intelligence (WI'08), 2008
• Yutaka Matsuo, Junichiro Mori, Masahiro Hamasaki, Keisuke Ishida, Takuichi Nishimura, Hideaki Takeda, Koiti Hasida, and Mitsuru Ishizuka: POLYPHONET: An Advanced Social Network Extraction System, Journal of Web Semantics, Vol. 5, No. 4, pp.262-278, 2007
• Jun Karamon, Yutaka Matsuo, Hikaru Yamamoto, and Mitsuru Ishizuka: Generating Social Network Features for Link-based Classification, Proc. European Conference on Principles and Practice of Knowledge Discovery in Databases (PKDD 2007), September 2007
• Yutaka Matsuo, Hironori Tomobe, and Takuichi Nishimura: Robust Estimation of Google Count for Social Network Extraction, Proc. Twenty-Second Conference on Artificial Intelligence (AAAI-07), July 2007
• Nguyen Dat, Yutaka Matsuo, Mitsuru Ishizuka: Relation Extraction from Wikipedia Using Subtree Mining, Proc. Twenty-Second Conference on Artificial Intelligence (AAAI-07), July 2007
• Tadanobu Furukawa, Yutaka Matsuo, Ikki Ohmukai, Koki Uchiyama, Mitsuru Ishizuka: Analyzing Reading Behavior by Blog Mining, Proc. Twenty-Second Conference on Artificial Intelligence (AAAI-07), July 2007
• YingZi Jin, Yutaka Matsuo, and Mitsuru Ishizuka: Extracting Social Networks among Various Entities on the Web, Proc. Fourth European Semantic Web Conference (ESWC 2007), June 2007
• Yoshiyuki Namamura, Yuko Namimatsu, Nobuo Miyazaki, Yutaka Matsuo, and Takuichi Nishimura: A Method for Estimating Position and Orientation with a Topological Approach using Multiple Infrared Tags, Fourth International Conference on Networked Sensing Systems (INSS 07), June 2007
• Danushka Bollegala, Yutaka Matsuo, and Mitsuru Isizuka: Measuring Semantic Similarity between Words using Web Search Engines, Proc. 16th International World Wide Web Conference (WWW2007), May 2007
• Kosuke Shinoda, Yutaka Matsuo, and Hideyuki Nakashima: Emergence of Global Network Property based on Multi-agent Voting Model, Proc. 2007 International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2007), May 2007
• Danushka Bollegala, Yutaka Matsuo, and Mitsuru Isizuka: An Integrated Approach to Measuring Semantic Similarity between Words using Information Available on the Web, Proc. Human Language Technologies: The Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL-HLT 2007) , April 2007
• Tadanobu Furukawa, Yutaka Matsuo, Ikki Ohmukai, Koki Uchiyama, and Mitsuru Ishizuka: Social Networks and Reading Bahavior in Blogosphere, Proc. International Conference on Weblogs and Social Media (ICWSM), March 2007
• Yutaka Matsuo, Naoaki Okazaki, Kiyoshi Izumi, Yoshiyuki Nakamura, Takuichi Nishimura, Koiti Hasida, and Hideyuki Nakashima: Inferring Long-term User Property based on Users' Location History, Proc. 20th International Joint Conference on Artificial Intelligence (IJCAI2007),  Jan. 2007
• Junichiro Mori, Yutaka Matsuo, and Mitsuru Ishizuka: Extracting Keyphrases to Represent Relations in Social Networks from Web, Proc. 20th International Joint Conference on Artificial Intelligence (IJCAI2007), Jan. 2007
• Junichiro Mori, Takumi Tsujishita, Yutaka Matsuo, and Mitsuru Ishizuka: Extracting Relations in Social Networks from Web using Similarity between Collective Context, Proc. Fifth International Semantic Web Conference (ISWC2006), Nov. 2006
• Tom Hope, Noriyuki Fujimura, Masahiro Hamasaki, Yutaka Matsuo, and Takuichi Nishimura: Doing Community with IC Cards: Co-construction of Meaning and Use with Interactive Information Kiosks, Proc. Eighth International Conference on Ubiquitous Computing (UbiComp2006), 2006
• Danushka Bollegala, Yutaka Matsuo, and Mitsuru Ishizuka: Disambiguating Personal Names on the Web using Automatically Extracted Key Phrases, Proc. 17th European Conference on Artificial Intelligence (ECAI-06), 2006
• Yutaka Matsuo, Takeshi Sakaki, Koki Uchiyama, and Mitsuru Ishizuka: Graph-based Word Clustering using Web Search Engine, Proc. 2006 Conference on Empirical Methods in Natural Language Processing (EMNLP2006), 2006
• Yutaka Matsuo, Masahiro Hamasaki, Hideaki Takeda, Junichiro Mori, Danushka Bollegala, Hiroyuki Nakamura, Takuichi Nishimura, Koiti Hasida, and Mitsuru Ishizuka: Spinning Multiple Social Network for Semantic Web, Proc. 21st National Conference on Artificial Intelligence (AAAI-06), 2006
• Yutaka Matsuo, Junichiro Mori, Masahiro Hamasaki, Keisuke Ishida, Takuichi Nishimura, Hideaki Takeda, Koiti Hasida, and Mitsuru Ishizuka: POLYPHONET: An Advanced Social Network Extraction System, Proc. 15th International World Wide Web Conference (WWW2006), pp.397-406, 2006
• Danushka Bollegala, Yutaka Matsuo, and Mitsuru Ishizuka: Extracting Key Phrases to Disambiguate Personal Names on the Web. Proc. Seventh International Conference on Computational Linguistics and Intelligent Text Processing (CICLing 2006), pp. 223-234, 2006
• Naoaki Okazaki, Yutaka Matsuo, and Mitsuru Ishizuka: An Integrated Summarization System with Sentence Extraction on Fragmentary Information and Sentence Ordering Using Precedence Relation, ACM Transactions on Asian Language Information Processing (ACM-TALIP), Vol. 4, Issue 3, 2005
• Junichiro Mori, Tatsuhiko Sugiyama, and Yutaka Matsuo: Real-world Oriented Information Sharing using Social Networks. Proc. International ACM SIGGROUP Conference on Supporting Group Work (GROUP2005), pp. 81-84, 2005
• Yutaka Matsuo and Mitsuru Ishizuka: Keyword Extraction from a Single Document using Word Co-ocurrence Statistical Information, International Journal on Artificial Intelligence Tools, Vol.13, No.1, pp.157-169, 2004
• Shigeyoshi Hiratsuka, Yutaka Matsuo, Akio Sashima, Akira Takagi, Naoaki Izumi, and Koiti Kurumatani: Smart Navigation by Lightweight Components Coordination in Ubiquitous Computing, Proc. IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS2004), 2004
• Yutaka Matsuo, Hironori Tomobe, Koiti Hasida and Mitsuru Ishizuka: Finding Social Network for Trust Calculation, Proc. 16th European Conf. on Artificial Intelligence (ECAI2004), pp.510-514, 2004
• Naoaki Okazaki, Yutaka Matsuo and Mitsuru Ishizuka: Improving Chronological Sentence Ordering by Precedence Relation, Proc. 20th International Conference on Computational Linguistics (COLING 04), pp.750-756, 2004
• Naoaki Okazaki, Yutaka Matsuo, Naohiro Matsumura and Mitsuru Ishizuka: Sentence Extraction by Spreading Activation with Refined Similarity Measure, IEICE Transactions on Information and Systems, Vol.E86-D, No.9, pp.1687-1694, 2003
• Yutaka Matsuo, Yukio Ohsawa, and Mitsuru Ishizuka: Average-clicks: A New Measure of Distance on the World Wide Web, Journal of Intelligent Information Systems, Vol. 20, No. 1, pp. 51--62, 2003
• Yutaka Matsuo, Hironori Tomobe, Koiti Hasida, and Mitsuru Ishizuka: Mining Social Network of Conference Participants from the Web, Proc. 2003 IEEE/WIC International Conference on Web Intelligence (WI2003), 2003
• Yutaka Matsuo: Word Weighting based on User's Browsing History, Proc. Ninth International Conference on User Modeling (UM’03), LNAI 2702, pp.35-33, 2003
• Naoaki Okazaki, Yutaka Matsuo, Naohiro, Matsumura, and Mitsuru Ishizuka: Sentence Extraction by Spreading Activation with Refined Similarity Measure, Proc. 16th International FLAIRS Conference, pp. 407--411, 2003
• Yutaka Matsuo and Mitsuru Ishizuka: Keyword Extraction from a Single Document using Word Co-occurrence Statistical Information, Proc. 16th International FLAIRS Conference, pp. 392--396, 2003
• Naohiro Matsumura, Yutaka Matsuo, Yukio Ohsawa and Mitsuru Ishizuka: Discovering Emerging Topics from WWW, Journal of Contingencies and Crisis Management, Vol. 10, No. 2, pp. 73--81, 2002
• Mitsuru Ishizuka and Yutaka Matsuo: SL Method for Computing a Near-optimal Solution using Linear and Non-linear Programming in Cost-based Hypothetical Reasoning, Knowledge-Based Systems, Vol. 15, Issue 7, pp. 369-376, 2002
• Yutaka Matsuo, Hayato Fukuta, and Mitsuru Ishizuka: Browsing Support by Highlighting Keywords based on a User's Browsing History, Proc. IEEE International Conference on Systems, Man and Cybernetics (SMC2002), 2002
• Naoaki Okazaki, Yutaka Matsuo, Naohiro Matsumura, Hironori Tomobe, and Mitsuru Ishizuka: Extracting Characteristic Sentences from Related Documents, Proc. Sixth International Conference on Knowledge-based Intelligent Information Engineering Systems & Applied Technologies (KES2002), pp. 1257-1261, 2002.
• Yutaka Matsuo: Clustering using Small World Structure, Proc. Sixth International Conference on Knowledge-based Intelligent Information Engineering Systems & Applied Technologies (KES2002), pp.1252-1256, 2002
• Yutaka Matsuo and Mitsuru Ishizuka: Two Transformation of Clauses into Constraints and their Properties for Cost-based Hypothetical Reasoning, Proc. Seventh Pacific Rim International Conferences on Artificial Intelligence (PRICAI2002), LNAI 2417, pp.118-127, 2002
• Yukio Ohsawa, Hirotaka Soma,  Yutaka Matsuo, Naohiro Matsumura, and Masaki Usui: Featuring Web Communities based on Word Co-occurrence Structure of Communications, Proc. 11th International WWW conference (WWW2002), 2002
• Yutaka Matsuo, Yukio Ohsawa, and Mitsuru Ishizuka: KeyWorld: Extracting Keywords in a Document as a Small World, Proc. Fourth International Conference on Discovery Science (DS2001), pp. 271-281, 2001
• Yutaka Matsuo, Yukio Ohsawa, and Mitsuru Ishizuka: Average-clicks: A New Measure of Distance on the World Wide Web, Proc. First Asian-Pacific Conference on Web Intelligent (WI2001), LNAI 2198, pp.125-130, 2001
• Yutaka Matsuo, Yukio Ohsawa, and Mitsuru Ishizuka: Discovering Hidden Relation behind a Link, Proc. Fifth International Conference on Knowledge-Based Intelligent Information Engineering Systems & Allied Technologies (KES2001), pp.1183-1187, 2001
• Yutaka Matsuo and Akihiko Yokoyama: Optimization of Installation of FACTS Device in Power System Planning by both Tabu Search and Nonlinear Programming Methods, Proc. Intelligent System Application to Power System (ISAP'99), pp.250-254, 1999
• Mitsuru Ishizuka and Yutaka Matsuo: SL Method for Computing a Near-optimal Solution using Linear and Non-linear Programming in Cost-based Hypothetical Reasoning, Proc. 5th Pacific Rim International Conference on Artificial Intelligence (PRICAI'98), LNAI 1531, pp.611-625, 1998

Many papers are written also in Japanese.