| 2024 | HIC | 12th International Workshop on Human Activity Sensing Corpus and Applications (HASCA). | Kazuya Murao, Yu Enokibori, Hristijan Gjoreski, Paula Lago, Tsuyoshi Okita, Pekka Siirtola, Kei Hiroi, Philipp M. Scholl, Mathias Ciliberto, Kenta Urano, Marius Bock |
| 2024 | PERCOM | Demo: Flood Damage CyRealization with an Orchestrator Framework. | Kei Hiroi, Souma Nakagawa, Ryoma Takahashi, Akihito Kohiga, Sho Fukaya, Yoichi Shinoda |
| 2023 | SIMULTECH | Interaction-Based Task Group Scheduling for a Scalable and Real-Time Self-Driving Simulation. | Akihito Kohiga, Kei Hiroi, Takumi Kataoka, Sho Fukaya, Yoichi Shinoda |
| 2019 | IGARSS | Verification on Evacuation of Flood Disaster by Using Gps: Case Study in Mabi, Japan 2018. | Takahiro Yoshida, Kei Hiroi, Yoshiki Yamagata, Daisuke Murakami |
| 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 |
| 2019 | IGARSS | Proposing of Software Testing Platform with Federating Simulation and Software Emulation For Route Recommendation System in the Case of Flooding. | Masatoshi Enomoto, Tsubasa Yumura, Kei Hiroi, Toshiyuki Miyachi |
| 2019 | IGARSS | Processing Time and Reproducibility Toward A Real-Time Simulation System for Flood Evacuation. | Kei Hiroi, Masatoshi Enomoto, Tsubasa Yumura, Toshiyuki Miyachi |
| 2019 | Mobisys | Basic Study of BLE Indoor Localization using LSTM-based Neural Network. | Kenta Urano, Kei Hiroi, Takuro Yonezawa, Nobuo Kawaguchi |
| 2019 | Mobisys | Capturing Subjective Time as Context and It's Applications. | Takuro Yonezawa, Yuuki Nishiyama, Kei Hiroi, Nobuo Kawaguchi |
| 2019 | Mobisys | Gait Dependency of Smartphone Walking Speed Estimation using Deep Learning. | Takuto Yoshida, Junto Nozaki, Kenta Urano, Kei Hiroi, Takuro Yonezawa, Nobuo Kawaguchi |
| 2019 | PERCOM | Flood Area Estimation Using Personal Location Data - Case Study of Japan Floods in 2018. | Kei Hiroi, Takahiro Yoshida, Yoshiki Yamagata, Nobuo Kawaguchi |
| 2019 | PERCOM | Road Surface Condition Inspection Using a Laser Scanner Mounted on an Autonomous Driving Car. | Kenta Urano, Kei Hiroi, Shinpei Kato, Nozomi Komagata, Nobuo Kawaguchi |
| 2016 | IPIN | PIEM: Path Independent Evaluation Metric for Relative Localization. | Masaaki Abe, Katsuhiko Kaji, Kei Hiroi, Nobuo Kawaguchi |
| 2016 | Mobiquitous | Wi-Fi Human Behavior Analysis and BLE Tag Localization: A Case Study at an Underground Shopping Mall. | Nobuo Kawaguchi, Kei Hiroi, Atsushi Shionozaki, Masamichi Asukai, Toshimune Nasu, Yu Hashimoto, Takeharu Nakamura, Tetsuya Gotou, Shinsuke Ando |
| 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 |