An operational demonstration of a mobile network with a fairly large number of nodes. - Keiichi Shima; Yojiro Uo; Nobuo Ogashiwa; Satoshi Uda (SAINT Workshops, 2006)

Operational Experiment of Seamless Handover of a Mobile Router using Multiple Care-of Address Registration. - Keiichi Shima; Yojiro Uo; Nobuo Ogashiwa; Satoshi Uda (J. Networks, 2006)

Designing and Implementing IPv6 Mobility stack on BSD Operating Systems. - Keiichi Shima; Koshiro Mitsuya; Tsuyoshi Momose; Shuichi Karino; Ryuji Wakikawa; Kazushi Sugyou; Keisuke Uehara (Inf. Media Technol., 2008)

A Decentralized VPN Service over Generalized Mobile Ad-Hoc Networks. - Sho Fujita; Keiichi Shima; Yojiro Uo; Hiroshi Esaki (IEICE Trans. Inf. Syst., 2009)

Design, Implementation, and Operation of IPv6-only IaaS System with IPv4-iPv6 Translator for Transition toward the Future Internet Datacenter. - Keiichi Shima; Wataru Ishida; Yuji Sekiya (CLOSER, 2012)

Designing an IPv6-Oriented Datacenter with IPv4-IPv6 Translation Technology for Future Datacenter Operation. - Keiichi Shima; Wataru Ishida; Yuji Sekiya (CLOSER (Selected Papers), 2012)

UKAI: Centrally controllable distributed local storage for virtual machine disk images. - Keiichi Shima (GLOBECOM Workshops, 2013)

Management Information Base for Virtual Machines Controlled by a Hypervisor. - Hirochika Asai; Michael R. MacFaden; Jürgen Schönwälder; Keiichi Shima; Tina Tsou (RFC, 2015)

Length Matters: Clustering System Log Messages using Length of Words. - Keiichi Shima (CoRR, 2016)

Hayabusa: Simple and Fast Full-Text Search Engine for Massive System Log Data. - Hiroshi Abe; Keiichi Shima; Yuji Sekiya; Daisuke Miyamoto; Tomohiro Ishihara; Kazuya Okada (CFI, 2017)

Classification of URL bitstreams using bag of bytes. - Keiichi Shima; Daisuke Miyamoto; Hiroshi Abe; Tomohiro Ishihara; Kazuya Okada; Yuji Sekiya; Hirochika Asai; Yusuke Doi (ICIN, 2018)

Distributed Hayabusa: Scalable Syslog Search Engine Optimized for Time-Dimensional Search. - Hiroshi Abe; Keiichi Shima; Daisuke Miyamoto; Yuji Sekiya; Tomohiro Ishihara; Kazuya Okada; Ryo Nakamura; Satoshi Matsuura (AINTEC, 2019)

Performance analysis of SIIT implementations: Testing and improving the methodology. - Gábor Lencse; Keiichi Shima (Comput. Commun., 2020)

WebRTC-based measurement tool for peer-to-peer applications and preliminary findings with real users. - Kosuke Nakagawa; Manabu Tsukada; Keiichi Shima; Hiroshi Esaki (AINTEC, 2021)

Catching Unusual Traffic Behavior using TF-IDF-based Port Access Statistics Analysis. - Keiichi Shima (CCCI, 2021)

Classifying DNS Servers based on Response Message Matrix using Machine Learning. - Keiichi Shima; Ryo Nakamura; Kazuya Okada; Tomohiro Ishihara; Daisuke Miyamoto; Yuji Sekiya (CoRR, 2021)

Performance evaluation of DNS servers to build a benchmarking system of DNS64 implementations. - Gábor Lencse; Attila Pivoda; Keiichi Shima (Telecommun. Syst., 2021)

Comparative Causal Analysis of Network Log Data in Two Large ISPs. - Satoru Kobayashi; Keiichi Shima; Kenjiro Cho; Osamu Akashi; Kensuke Fukuda (NOMS, 2022)

A Design of Stateless 5G Core Network with Procedural Processing. - Hiroki Watanabe; Kunio Akashi; Keiichi Shima; Yuji Sekiya; Katsuhiro Horiba (BlackSeaCom, 2023)

Benchmarking methodology for stateful NAT64 gateways. - Gábor Lencse; Keiichi Shima; Kenjiro Cho (Comput. Commun., 2023)

Cloud5GC : Design and implementation of scalable and stateless mobile core system on public cloud. - Kunio Akashi; Seiichi Yamamoto; Haruki Sakurai; Koki Ito; Tomohiro Ishihara; Takuji Iimura; Yuji Sekiya; Hiroki Watanabe; Keiichi Shima; Katsuhiro Horiba (ICOIN, 2024)

Benchmarking Methodology for Stateful NATxy Gateways. - Gábor Lencse; Keiichi Shima (RFC, 2025)