| 2025 | SNPD | Internet access and mobile service choice behavior analysis considering service change intention. | Ken Nishimatsu, Akiya Inoue |
| 2023 | SERA | Mobile User Analysis Considering Collaboration with Financial Services. | Ken Nishimatsu, Akiya Inoue |
| 2020 | NOMS | DeepSIP: A System for Predicting Service Impact of Network Failure by Temporal Multimodal CNN. | Yoichi Matsuo, Tatsuaki Kimura, Ken Nishimatsu |
| 2015 | IM | Early network failure detection system by analyzing Twitter data. | Kei Takeshita, Masahiro Yokota, Ken Nishimatsu |
| 2015 | IM | Demonstration of carrier network failure detection by analyzing Twitter. | Masahiro Yokota, Kei Takeshita, Ken Nishimatsu |
| 2015 | KES | Efficient Method to Determine Microarea with High Potential Demand for Broadband Services. | Motoi Iwashita, Akiya Inoue, Takeshi Kurosawa, Ken Nishimatsu |
| 2014 | INFOCOM | Spatio-temporal factorization of log data for understanding network events. | Tatsuaki Kimura, Keisuke Ishibashi, Tatsuya Mori, Hiroshi Sawada, Tsuyoshi Toyono, Ken Nishimatsu, Akio Watanabe, Akihiro Shimoda, Kohei Shiomoto |
| 2014 | SNPD | An improvement of micro area selection technique for the diffusion of ICT infrastructure. | Motoi Iwashita, Takeshi Kurosawa, Akiya Inoue, Ken Nishimatsu |
| 2013 | SNPD | Mobile-Carrier Choice Behavior Analysis Around Smart Phone Market. | Akiya Inoue, Motoi Iwashita, Takeshi Kurosawa, Ken Nishimatsu |
| 2012 | SNPD | Mobile-Carrier Churning Behavior Modeling Based on Customer Satisfaction. | Satoshi Nakano, Akiya Inoue, Kiyotaka Otsuka, Takeshi Kurosawa, Motoi Iwashita, Ken Nishimatsu |
| 2009 | KES | Text Mining for Customer Enquiries in Telecommunication Services. | Motoi Iwashita, Shinsuke Shimogawa, Ken Nishimatsu |
| 2008 | ICDM | Semantic Analysis Method for Unstructured Data in Telecom Services. | Motoi Iwashita, Ken Nishimatsu, Shinsuke Shimogawa |
| 2004 | ICINCO | New Method for Structural Change Detection of Time Series as an Optimal Stopping Problem. | Hiromichi Kawano, Ken Nishimatsu, Tetsuo Hattori |
| 2004 | IRI | Structural Change Detection in Time Series Based on DP with Action Cost. | Hiromichi Kawano, Tetsuo Hattori, Ken Nishimatsu |