Journals

• Daichi Amagata and Takahiro Hara. Reverse Maximum Inner Product Search: Formulation, Algorithms, and Analysis ACM Transactions on the WEB (TWEB), volume 17, number 4, pages 26:1-26:23, 2023. Extended version of RecSys2021. Code is here.
• Kohei Hirata, Daichi Amagata, Sumio Fujita, and Takahiro Hara. Categorical Diversity-Aware Inner Product Search IEEE Access, volume 11, pages 2586-2596, 2023. Code is here.

Conferences

• Kazuyoshi Aoyama, Daichi Amagata, Sumio Fujita, and Takahiro Hara. Simpler is Much Faster: Fair and Independent Inner Product Search Proceedings of the ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), pages 2379–2383, 2023. Short Paper Track
• Daichi Amagata, Alejandro Ramos, Ryo Shirai, and Takahiro Hara. Fast Algorithm for Embedded Order Dependency Validation Proceedings of the International Conference on Scientific and Statistical Database Management (SSDBM), pages 17:1-17:4, 2023. The first two authors have equal contribution. Extended version is here.
• Shunya Nishio, Daichi Amagata, and Takahiro Hara. Approximate Reverse Top-k Spatial-Keyword Queries Proceedings of the IEEE International Conference on Mobile Data Management (MDM), pages 96-105, 2023.
• Yue Zhao, Yihong Zhang, Daichi Amagata, and Takahiro Hara. POI Recommendation by Learning Short-, Long- and Mid-Term Preferences through GNN Proceedings of the IEEE International Conference on Mobile Data Management (MDM), pages 1-10, 2023.
• Keizo Hori, Yuya Sasaki, Daichi Amagata, Yuki Murosaki, and Makoto Onizuka. Learned Spatial Data Partitioning Proceedings of the International Workshop on Exploiting Artificial Intelligence Techniques for Data Management (aiDM), pages 3:1-3:8, 2023.
• Hao Niu, Duc Nguye, Kei Yonekawa, Mori Kurokawa, Chihiro Ono, Daichi Amagata, Takuya Maekawa, and Takahiro Hara User-irrelevant Cross-domain Association Analysis for Cross-domain Recommendation with Transfer Learning Proceedings of the ACM Workshop on Intelligent Cross-Data Analysis and Retrieval (ICDAR), pages 37-45, 2023.
• Zhi Li, Daichi Amagata, Yihong Zhang, Takahiro Hara, Shuichiro Haruta, Kei Yonekawa, and Mori Kurokawa. Semantic Relation Transfer for Non-overlapped Cross-domain Recommendations Proceedings of the Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), pages 271-283, 2023.
• Shunya Nishio, Daichi Amagata, and Takahiro Hara. Lamps: Location-Aware Moving Top-k Pub/Sub (Extended abstract) Proceedings of the IEEE International Conference on Data Engineering (ICDE), pages 3809-3810, 2023. TKDE Poster Session
• Daichi Amagata. Diversity Maximization in the Presence of Outliers Proceedings of the AAAI Conference on Artificial Intelligence, pages 12338-12345, 2023. A supplementary file is here. Code is here. Slide is here. Poster is here.