S. Yamamoto, Y. Akagi, T. Tominaga, and T. Kurashima, “Estimating Present Bias using Behavior History,” IEICE Transactions, Vol. ?, No. ?, pp. ?-?, 2025年11月.
S. Yamamoto, T. Kurashima, and H. Toda, “Classifying Near-Miss Traffic Incidents through Video, Sensor, and Object Features,” IEICE Transactions, Vol. E105-D, No. 2, pp. 377-386, Feb. 2022.
S. Yamamoto, K. Wakabayashi, T. Satoh, Y. Nozaki, and N. Kando, “Twitter User Growth Analysis based on Diversities in Posting Activities,” International Journal of Web Information Systems, Vol. 13, Issue 4, pp. 370-386, Nov. 2017. [2018 Emerald Literati Awards for Excellence International Journal of Web Information Systems, Outstanding Paper]
S. Yamamoto, N. Kando, and T. Satoh, “Life Aspect Inference of Tweets based on Probability Distribution,” Web Intelligence, Vol. 15, No. 1, pp. 55-65, February 2017.
S. Yamamoto, K. Wakabayashi, N. Kando, and T. Satoh, “Twitter User Tagging Method based on Burst Time Series,” International Journal of Web Information Systems, Vol. 12, Issue 3, pp. 292-311, August 2016.
Y. Yamaguchi, S. Yamamoto, and T. Satoh, “Behavior Analysis Methods for Twitter Users based on Transitions in Posting Activities,” International Journal of Web Information Systems, Vol. 10, Issue 4, pp. 363-377, Nov. 2014.
S. Yamamoto and T. Satoh, “Two Phase Estimation Method for Multi-classifying of Real Life Tweets,” International Journal of Web Information Systems, Vol. 10, Issue 4, pp. 343-362, Nov. 2014.
T. Ikeda and S. Yamamoto, “Effects of Image Samples on In-Context Learning of Multimodal Large Language Models,” The 27th International Conference on Information Integration and Web Intelligence (iiWAS2025), pp. ??-??, Matsue, Japan, Dec. 2025.
X. Zhelin, S. Yamamoto, and H. Joho, “Research Paper Recommender System by Considering Users' Information Seeking Behaviors,” International Joint Conference on Neural Networks (IJCNN2025), pp. ??-??, Rome, Italy, July 2025.
S. Yamamoto and N. Kando, “Temporal Closeness for Enhanced Cross-Modal Retrieval of Sensor and Image Data,” The 31st International Conference on Multimedia Modeling (MMM2025), pp. 170-183, Nara, Japan, Jan. 2025.
T. Kurashima, T. Iwata, T. Tominaga, S. Yamamoto, H. Toda, and K. Takemura “Personal History Affects Reference Points: A Case Study of Codeforces,” The 17th International AAAI Conference on Web and Social Media (ICWSM2023), pp. 507-518, Cyprus, June 2023. [Out Standing User Modeling Paper]
Y. Kurauchi, Y. Takimoto, S. Yamamoto, S. Seko, and H. Toda, “Asterisk-Shaped Features for Tabular Data,” The 30th ACM International Conference on Information and Knowledge Management (CIKM2021), pp. 3162-3165, Queensland, Australia, Nov. 2021.
T. Tominaga, S. Yamamoto, T. Kurashima, and H. Toda, “Effects of Personal Characteristics on Temporal Response Patterns in Ecological Momentary,” The 18th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT2021), pp.3-22, Bari, Italy, Aug. 2021.
S. Yamamoto, T. Kurashima, and H. Toda, “Identifying Near-Miss Traffic Incidents in Event Recorder Data”, The 24th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD2020), pp. 717-728, Singapore, May 2020.
Y. Takimoto, Y. Tanaka, T. Kurashima, S. Yamamoto, M. Okawa, and H. Toda, “Predicting Traffic Accidents with Event Recorder Data”, The 3rd ACM SIGSPATIAL Workshop on Prediction of Human Mobility (PredictGIS), pp. 11-14, Chicago, USA, Nov. 2019.
S. Yamamoto, K. Wakabayashi, N. Kando, T. Satoh, “Who are Growth Users?: Analyzing and Predicting Intended Twitter User Growth,” The 18th International Conference on Information Integration and Web-based Applications & Services (iiWAS2016), pp. 66-73, Singapore, Nov. 2016. [Best Paper Award]
S. Yamamoto, N. Kando, and T. Satoh, “Continuous Recipe Selection Model based on Cooking History,” The 8th International Conference on Social Informatics (SocInfo2016), pp. 138-151, Bellevue, Washington, Nov. 2016.
S. Yamamoto, N. Kando, and T. Satoh, “User-User Relationship Migration Observed in Communication Activity,” The 24th Conference on User Modeling, Adaption and Personalization (UMAP2016), pp. 297-298, Halifax, Canada, July 2016.
H. Joho, A. Jatowt, R. Blanco, H. Yu, and S. Yamamoto, “Building Text Collections for Evaluating Temporal IR,” The 39th Annual ACM Special Interest Group on Information Retrieval Conference (SIGIR2016), pp. 677-680, Pisa, Italy, July 2016.
S. Yamamoto, K. Wakabayashi, N. Kando, and T. Satoh, “BUTE: Bursty Users Tagging Method Estimated by Time Series Data,” The 17th International Conference on Information Integration and Web-based Applications & Services (iiWAS2015), pp. 148-156, Brussels, Belgium, December 2015.
S. Yamamoto, N. Kando, and T. Satoh, “LAIM: Life Aspect Inference Method based on Probability Distribution for Real Life Tweets,” 2015 IEEE/AIC/ACM International Conference on Web Intelligence (WI2015), pp. 187-194, Singapore, Dec. 2015.
S. Yamamoto and T. Satoh, “Hierarchical Estimation Framework of Multi-Label Classifying: A Case of Tweets Classifying into Real Life Aspects,” The 15th International AAAI Conference on Web and Social Media (ICWSM2015), pp. 523-532, Oxford, UK, May 2015.
Y. Mizunuma, S. Yamamoto, Y. Yamaguchi, A. Ikeuchi, T. Satoh, and S. Shimada, “Twitter Bursts: Analysis of their Occurrence and Classifications,” The 8th International Conference on Digital Society (ICDS2014), pp. 182-187, Barcelona, Spain, March 2014.
S. Yamamoto and T. Satoh, “Two Phase Extraction Method for Multi-label Classification of Real Life Tweets,” The 15th International Conference on Information Integration and Web-based Applications & Services (iiWAS2013), pp. 16-25, Vienna, Austria, December 2013.
Y. Yamaguchi, S. Yamamoto, and T. Satoh, “Behavior Analysis of Microblog Users Based on Transitions in Posting Activities,” The 15th International Conference on Information Integration and Web-based Applications & Services (iiWAS2013), pp. 63-67, Vienna, Austria, Dec. 2013.
S. Yamamoto and T. Satoh, “Two Phase Extraction Method for Extracting Real Life Tweets using LDA,” The 15th Asia-Pacific Web Conference (APWeb2013), Sydney, Australia, pp. 340-347, April 2013.
国際会議(査読無し)
R. Mizuguchi, T. Yamazaki, and S. Yamamoto, “YMX2L at the NTCIR-18 Transfer-2 Task,” The 18th NII Testbeds and Community for Information access Research (NTCIR-18) Conference, pp. 382-384, Tokyo, Japan, June 2025. [Best Poster Presentation Award]
H. Joho, A. Keyaki, Y. Tachioka, and S. Yamamoto, “Overview of the NTCIR-18 Transfer-2 Task,” The 18th NII Testbeds and Community for Information access Research (NTCIR-18) Conference, pp. 373-377, Tokyo, Japan, June 2025.
S. Yamamoto, T. Nishimura, Y. Akagi, Y. Takimoto, T. Inoue, and H. Toda, “PBG at NTCIR-13 Lifelog-2 LAT, LSAT, and LEST Tasks,”, The 13th NII Testbeds and Community for Information access Research (NTCIR-13) Conference, pp. 12-19, Tokyo, Japan, Dec. 2017.
R. Blanco, H. Joho, A. Jatowt, H. Yu, and S. Yamamoto, “Overview of NTCIR-13 Actionable Knowledge Graph (AKG) Task,” The 13th NII Testbeds and Community for Information access Research (NTCIR-13) Conference, pp. 340-345, Tokyo, Japan, Dec. 2017.
H. Joho, A. Jatowt, R. Blanco, H. Yu, and S. Yamamoto, “Overview of NTCIR-12 Temporal Information Access (Temporalia-2) Task,” The 12th NII Testbeds and Community for Information access Research (NTCIR-12) Conference, pp. 217-224, Tokyo, Japan, June 2016.
H. Joho, A. Jatowt, R. Blanco, H. Naka, and S. Yamamoto, “Overview of NTCIR-11 Temporal Information Access (Temporalia) Task,” The 11th NII Testbeds and Community for Information access Research (NTCIR-11) Conference, pp. 429-437, Tokyo, Japan, Dec. 2014.