| 2021 | ICDCN | State Estimation Method Using Radio Wave Intensity of BLE Beacon Installed Inside Object. | Yuki Ogane, Ryoga Mizuno, Katsuhiko Kaji |
| 2021 | Mobiquitous | Building a Crowdsensing Platform Based on Spatio-Temporal Fencing. | Nobuhito Miyagawa, Ryoga Tsuchimoto, Shota Suzaki, Katsuhiko Kaji |
| 2019 | IPIN | Step Recognition Method Using Air Pressure Sensor. | Katsuhiko Kaji, Keisuke Isomura, Tsubasa Takai |
| 2019 | IPIN | End-to-end walking speed estimation method for smartphone PDR using DualCNN-LSTM. | Nobuo Kawaguchi, Junto Nozaki, Takuto Yoshida, Kei Hiroi, Takuro Yonezawa, Katsuhiko Kaji |
| 2016 | IPIN | PIEM: Path Independent Evaluation Metric for Relative Localization. | Masaaki Abe, Katsuhiko Kaji, Kei Hiroi, Nobuo Kawaguchi |
| 2016 | IPIN | Estimating 3D pedestrian trajectories using stability of sensing signal. | Katsuhiko Kaji, Nobuo Kawaguchi |
| 2016 | Mobiquitous | pakapaka Method For BLE Beacon Identification. | Shota Ikeda, Katsuhiko Kaji |
| 2016 | Mobiquitous | An Emergency Application for Smartphones Based on Rhythm Pattern Recognition. | Yoshino Niwa, Mayu Inamura, Katsuhiko Kaji |
| 2016 | Mobiquitous | A Location Estimation Method using BLE Tags Distributed Among Participants of a Large-Scale Exhibition. | Kenta Urano, Kei Hiroi, Katsuhiko Kaji, Nobuo Kawaguchi |
| 2015 | COMPSAC | An Event Data Extraction Method Based on HTML Structure Analysis and Machine Learning. | Chenyi Liao, Kei Hiroi, Katsuhiko Kaji, Nobuo Kawaguchi |
| 2014 | COMPSAC | Design and Implementation of Event Information Summarization System. | Chenyi Liao, Katsuhiko Kaji, Kei Hiroi, Nobuo Kawaguchi |
| 2013 | COMPSAC | Elevator Acceleration Sensing: Design and Estimation Recognition Algorithm Using Crowdsourcing. | Tianhui Yang, Katsuhiko Kaji, Nobuo Kawaguchi |
| 2012 | IPIN | Gaussian Mixture Model and Particle Filter. | Katsuhiko Kaji, Nobuo Kawaguchi |
| 2011 | CSCW | Improving visibility of remote gestures in distributed tabletop collaboration. | Naomi Yamashita, Katsuhiko Kaji, Hideaki Kuzuoka, Keiji Hirata |
| 2008 | GLOBECOM | t-Room: Next Generation Video Communication System. | Keiji Hirata, Yasunori Harada, Toshihiro Takada, Shigemi Aoyagi, Yoshinari Shirai, Naomi Yamashita, Katsuhiko Kaji, Junji Yamato, Kenji Nakazawa |