| 2026 | HCI | Stepwise Multiple Comments Summarization Using Abstraction and Associative Expansion with LLM. | Tatsuki Ito, Yoko Nishihara, Wataru Sunayama |
| 2024 | HCI | A Study on Input Methods of User Preference for Personalized Fashion Coordinate Recommendations. | Shun Hattori, Shohei Miyamoto, Wataru Sunayama, Madoka Takahara |
| 2013 | HCI | Sales Strategy Mining System with Visualization of Action History. | Haruhi Satonaka, Wataru Sunayama |
| 2013 | ICDM | Acquissition of Text-Mining Skills for Beginners Using TETDM. | Rina Nakagochi, Kayo Kawamoto, Wataru Sunayama |
| 2012 | KES | Mood Identification in Bulletin Board System with Word Characteristic Dictionary. | Shuhei Hamaoka, Wataru Sunayama |
| 2012 | PRICAI | Identification and Visualisation of Pattern Migrations in Big Network Data. | Puteri Nor Ellyza binti Nohuddin, Frans Coenen, Rob M. Christley, Wataru Sunayama |
| 2011 | KES | Text Visualization Service for Creating Comprehended Texts. | Wataru Sunayama, Yoko Nishihara |
| 2011 | SGAI | Trend Mining and Visualisation in Social Networks. | Puteri Nor Ellyza binti Nohuddin, Wataru Sunayama, Rob M. Christley, Frans Coenen, Christian Setzkorn |
| 2010 | KES | Opinion Exchange Support System by Visualizing Input History. | Yukihiro Tamura, Yuuki Tomiyama, Wataru Sunayama |
| 2009 | AI | Valuable Change Detection in Keyword Map Animation. | Takuya Nishikido, Wataru Sunayama, Yoko Nishihara |
| 2009 | HCI | Event Extraction and Visualization for Obtaining Personal Experiences from Blogs. | Yoko Nishihara, Keita Sato, Wataru Sunayama |
| 2008 | ECAI | Personal Experience Acquisition Support from Blogs using Event-Depicting Images. | Keita Sato, Yoko Nishihara, Wataru Sunayama |
| 2008 | ICDM | Title-Composing Support System for Reaching New Audiences. | Yoko Nishihara, Wataru Sunayama |
| 2008 | SMC | Visual support system for report distinctiveness evaluation. | Toshiaki Kawaguchi, Wataru Sunayama |
| 2006 | ICDM | Estimation System of People's Freindship and Hierarchical Relationship from Sentence Types. | Yoko Nishihara, Wataru Sunayama, Masahiko Yachida |
| 2006 | ICDM | The River-Rafting System for Knowledge Discovery Related to Persuasion Process Conversation Logs. | Wataru Sunayama, Katsutoshi Yada |
| 2004 | HIS | Image Clustering System on WWW using Web Texts. | Wataru Sunayama, Akiko Nagata, Masahiko Yachida |
| 2003 | HIS | Creative Activity Support for Discovering Effective Combinations. | Yoko Nishihara, Wataru Sunayama, Masahiko Yachida |
| 2002 | HIS | Panoramic View System for Extracting Key Sentences based on Viewpoints and an Application to a Search Engine. | Wataru Sunayama, Masahiko Yachida |
| 2000 | KES | An aiding system for Internet surfings by associations: get one through chances. | Wataru Sunayama, Masahiko Yachida |
| 1999 | DIS | Computer Aided Discovery of User's Hidden Interest for Query Restructuring. | Wataru Sunayama, Yukio Ohsawa, Masahiko Yachida |
| 1999 | KES | Search interface for query restructuring with discovering user interest. | Wataru Sunayama, Y. Osawa, Masahiko Yachida |
| 1998 | DIS | Refining Search Expression by Discovering Hidden User's Interests. | Wataru Sunayama, Yuji Nomura, Yukio Ohsawa, Masahiko Yachida |