| 2023 | CHIIR | CS-lol: a Dataset of Viewer Comment with Scene in E-sports Live-streaming. | Junjie H. Xu, Yu Nakano, Lingrong Kong, Kojiro Iizuka |
| 2023 | ECIR | Theoretical Analysis on the Efficiency of Interleaved Comparisons. | Kojiro Iizuka, Hajime Morita, Makoto P. Kato |
| 2023 | SMC | How are Negative Articles Consumed? A Quantitative Analysis of User Behavior in a Real News Service. | Kazuya Ohata, Hitoshi Iyatomi, Hajime Morita, Kojiro Iizuka |
| 2021 | CIKM | The Effect of News Article Quality on Ad Consumption. | Kojiro Iizuka, Yoshifumi Seki, Makoto P. Kato |
| 2021 | ICTIR | Decomposition and Interleaving for Variance Reduction of Post-click Metrics. | Kojiro Iizuka, Yoshifumi Seki, Makoto P. Kato |
| 2019 | RecSys | Greedy optimized multileaving for personalization. | Kojiro Iizuka, Takeshi Yoneda, Yoshifumi Seki |
| 2014 | ICRA | Collision-free guidance control for multiple small helicopters. | Yoshihiko Aida, Satoshi Suzuki, Yohei Fujisawa, Kojiro Iizuka, Takashi Kawamura, Yuichi Ikeda |
| 2008 | IROS | Study on wheeled forms of lunar robots for traversing soft terrain. | Kojiro Iizuka, Yasuharu Kunii, Takashi Kubota |
| 2006 | IROS | Study on Wheel of Exploration Robot on Sandy Terrain. | Kojiro Iizuka, Yoshinori Sato, Yoji Kuroda, Takashi Kubota |
| 2005 | ICRA | Analysis on Weight Arrangement Scheme to Reduce the Weight of Multi-Legged Robot. | Takashi Kubota, Hiroo Takahashi, Kojiro Iizuka |
| 2004 | IROS | A study of locomotion mechanism based on gravitational environment. | Kei Takahashi, Shingo Shimoda, Kojiro Iizuka, Takashi Kubota |