| 2018 | SIGMOD | Density-based Multimodal Spatial Clustering using Pre-trained Deep Network for Extracting Local Topics. | Tatsuhiro Sakai, Keiichi Tamura, Hajime Kitakami, Toshiyuki Takezawa |
| 2017 | DASFAA | Cell-Based DBSCAN Algorithm Using Minimum Bounding Rectangle Criteria. | Tatsuhiro Sakai, Keiichi Tamura, Hajime Kitakami |
| 2015 | DASFAA | Emergency Situation Awareness During Natural Disasters Using Density-Based Adaptive Spatiotemporal Clustering. | Tatsuhiro Sakai, Keiichi Tamura, Hajime Kitakami |
| 2015 | IC3K | Real-time Local Topic Extraction using Density-based Adaptive Spatiotemporal Clustering for Enhancing Local Situation Awareness. | Tatsuhiro Sakai, Keiichi Tamura, Shota Kotozaki, Tsubasa Hayashida, Hajime Kitakami |
| 2015 | SMC | Identifying Local Temporal Burstiness Using MACD Histogram. | Keiichi Tamura, Tomoki Matsui, Hajime Kitakami, Tatsuhiro Sakai |
| 2014 | SMC | Density-based adaptive spatial clustering algorithm for identifying local high-density areas in georeferenced documents. | Tatsuhiro Sakai, Keiichi Tamura, Hajime Kitakami |
| 2014 | SMC | A new parallelization model for detecting temporal bursts in large-scale document streams on a multi-core CPU. | Keiichi Tamura, Hajime Kitakami |
| 2012 | SMC | Optimal protein structure alignment using modified extremal optimization. | Akihiro Nakada, Keiichi Tamura, Hajime Kitakami |
| 2012 | SMC | Clustering-based burst-detection algorithm for web-image document stream on social media. | Shingo Tamura, Keiichi Tamura, Hajime Kitakami, Kaishi Hirahara |
| 2010 | IKE | Searching for Index-based Similar Substructure Using RMSD in Protein Structure Databases. | Yoshifumi Takahashi, Susumu Kuroki, Keiichi Tamura, Hajime Kitakami |
| 2009 | IKE | A Method for Constructing Disk-based Indexes for 3-D Protein Structure Databases. | Yoshifumi Takahashi, Susumu Kuroki, Keiichi Tamura, Hajime Kitakami |
| 2009 | PDPTA | Extracting Similar Subsequences by Gibbs Sampling with Distributed MGG. | Nobuhisa Kono, Hajime Kitakami, Keiichi Tamura, Yasuma Mori |
| 2008 | PDPTA | Parallel Construction Method of a Disk-Based Suffix Tree on a PC Cluster. | Yusuke Sawada, Keiichi Tamura, Kotaro Araki, Makoto Takaki, Hajime Kitakami |
| 2007 | PDPTA | Method for Extracting Frequent Communities from Blog User Spaces. | Makoto Takaki, Yasuma Mori, Keiichi Tamura, Susumu Kuroki, Hajime Kitakami |
| 2006 | PDPTA | Extraction for Frequent Sequential Patterns with Minimum Varaible-Wildcard Regions. | Tomoyuki Kato, Hajime Kitakami, Makoto Takaki, Keiichi Tamura, Yasuma Mori, Susumu Kuroki |
| 2006 | PDPTA | Dynamic Load Balancing Technique for Modified PrefixSpan on a Grid Environment with Distributed Worker Model. | Makoto Takaki, Keiichi Tamura, Hajime Kitakami |
| 2005 | ICDE | New Dynamic Load Balancing for Parallel Modified PrefixSpan. | Makoto Takaki, Keiichi Tamura, Toshihide Sutou, Hajime Kitakami |
| 2004 | PDPTA | Dynamic Load Balancing for Parallel Modified PrefixSpan. | Makoto Takaki, Keiichi Tamura, Toshihide Sutou, Hajime Kitakami |
| 2002 | PRICAI | Modified PrefixSpan Method for Motif Discovery in Sequence Databases. | Hajime Kitakami, Tomoki Kanbara, Yasuma Mori, Susumu Kuroki, Yukiko Yamazaki |
| 2000 | DEXA | Constraint Satisfaction for Reconciling Heterogeneous Tree Databases. | Hajime Kitakami, Mitsuko Nishimoto |
| 2000 | KES | An impression-based retrieval system of music collection. | Akira Sato, Junichi Ogawa, Hajime Kitakami |
| 1997 | DASFAA | An Integration Methodology for Autonomous Taxonomy Databases Using Priorities. | Hajime Kitakami, Yasuma Mori, Masatoshi Arikawa, Akira Sato |
| 1996 | DEXA | An Intelligent System for Integrating Autonomous Nomenclature Databases in Semantic Heterogenity. | Hajime Kitakami, Yasuma Mori, Masatoshi Arikawa |
| 1994 | ISMB | Toward Unification of Taxonomy Databases in a Distributed Environment. | Hajime Kitakami, Yoshio Tateno, Takashi Gojobori |
| 1989 | ICDE | Term Indexing for Retrieval by Unification. | Haruo Yokota, Hajime Kitakami, Akira Hattori |
| 1981 | VLDB | The Optimization Strategy for Query Evaluation in RDB/V1 | Akifumi Makinouchi, Masayoshi Tezuka, Hajime Kitakami, S. Adachi |