| 2026 | ICAART | Multi-Attribute Bias Mitigation via Evolutionary Model Merging and Unlearning. | Yuka Seki, Ryohei Orihara, Yasuyuki Tahara, Akihiko Ohsuga, Yuichi Sei |
| 2025 | ICAART | ASPERA: Exploring Multimodal Action Recognition in Football Through Video, Audio, and Commentary. | Takane Kumakura, Ryohei Orihara, Yasuyuki Tahara, Akihiko Ohsuga, Yuichi Sei |
| 2025 | ICAART | Soccer Action Spotting with Multimodal Fusion and Markov-Guided Transformers. | Takene Kumakura, Ryohei Orihara, Yasuyuki Tahara, Akihiko Ohsuga, Yuichi Sei |
| 2025 | ICAART | Punish the Pun-ish: Enhancing Text-to-Pun Generation with Synthetic Data from Supervised Fine-tuned Models. | Tomohito Minami, Ryohei Orihara, Yasuyuki Tahara, Akihiko Ohsuga, Yuichi Sei |
| 2023 | ICAART | GAN Inversion with Editable StyleMap. | So Honda, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2023 | ICAART | Background Image Editing with HyperStyle and Semantic Segmentation. | Syuusuke Ishihata, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2020 | ICAART | Hair Shading Style Transfer for Manga with cGAN. | Masashi Aizawa, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2020 | ICAART | Model Smoothing using Virtual Adversarial Training for Speech Emotion Estimation using Spontaneity. | Toyoaki Kuwahara, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2019 | ICAART | New Indicator for Centrality Measurements in Passing-network Analysis of Soccer. | Masatoshi Kanbata, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2019 | ICAART | Transforming the Emotion in Speech using a Generative Adversarial Network. | Kenji Yasuda, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2018 | COMPSAC | Approximation of Time-Consuming Simulation Based on Generative Adversarial Network. | Ryohei Orihara, Ryota Narasaki, Yuma Yoshinaga, Yasuhiro Morioka, Yoshiyuki Kokojima |
| 2018 | ICAART | Do Professional Football Players Follow the Optimal Strategies in Penalty Shootout? | Takaya Koizumi, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2018 | ICAART | Factors Affecting Accuracy in Image Translation based on Generative Adversarial Network. | Fumiya Yamashita, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2017 | ICAART | Japanese Text Classification by Character-level Deep ConvNets and Transfer Learning. | Minato Sato, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2017 | ICAART | Text Classification and Transfer Learning Based on Character-Level Deep Convolutional Neural Networks. | Minato Sato, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2017 | ICAART | Fast Many-to-One Voice Conversion using Autoencoders. | Yusuke Sekii, Ryohei Orihara, Keisuke Kojima, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2017 | ICAART | Sarcasm Detection Method to Improve Review Analysis. | Shota Suzuki, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2017 | SIGIR | Applying Information Extraction for Patent Structure Analysis. | Masayuki Okamoto, Zifei Shan, Ryohei Orihara |
| 2015 | ICAART | Activity Recognition for Dogs Using Off-the-Shelf Accelerometer. | Tatsuya Kiyohara, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2015 | ICAART | Activity Recognition for Dogs Based on Time-series Data Analysis. | Tatsuya Kiyohara, Ryohei Orihara, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga |
| 2014 | ICAART | Identification of Flaming and Its Applications in CGM - Case Studies toward Ultimate Prevention. | Yuki Iwasaki, Ryohei Orihara, Yuichi Sei, Hiroyuki Nakagawa, Yasuyuki Tahara, Akihiko Ohsuga |
| 2009 | AINA | Classification of Bloggers Using Social Annotations. | Shigeaki Sakurai, Hideki Tsutsui, Ryohei Orihara |
| 2009 | CISIS | Discovery of Association Rules from Data including Missing Values. | Shigeaki Sakurai, Kouichirou Mori, Ryohei Orihara |
| 2008 | AINA | Classification Model Learning for Bulletin Board Site Analysis Based on Unbalanced Textual Examples. | Shigeaki Sakurai, Ryohei Orihara |
| 2008 | KES | Classification Method Utilizing Reliably Labeled Data. | Kouta Nakata, Shigeaki Sakurai, Ryohei Orihara |
| 2007 | SMC | Green behavior generation: A digital approach to reduce consumption. | Hideki Kobayashi, Koji Kimura, Toshimitsu Kumazawa, Ryohei Orihara, Tomoko Murakami, Y. Motomura, Yoichi Nishida |
| 2007 | SMC | Sequential pattern mining based on a new criteria and attribute constraints. | Shigeaki Sakurai, Youichi Kitahara, Ryohei Orihara |
| 2006 | PRICAI | Causal Difference Detection Using Bayesian Networks. | Tomoko Murakami, Ryohei Orihara |
| 2005 | ISMIS | Analysis of Textual Data with Multiple Classes. | Shigeaki Sakurai, Chong Goh, Ryohei Orihara |
| 2002 | ISMIS | Acquisition of a Knowledge Dictionary from Training Examples Including Multiple Values. | Shigeaki Sakurai, Yumi Ichimura, Akihiro Suyama, Ryohei Orihara |
| 2001 | HIS | Information Space Optimization with Real-Coded Genetic Algorithm for Inductive Learing. | Ryohei Orihara, Tomoko Murakami, Naomichi Sueda, Shigeaki Sakurai |
| 1991 | ALT | Analogical reasoning as a form of hypothetical reasoning and justification-based knowledge acquisition. | Ryohei Orihara |
| 1990 | ALT | On Paraphrasing-Based Analogical Reasoning. | Ryohei Orihara, Akihiko Ohsuga, Yoichi Kusui |