Effects of Using Simple Semantic Similarity on Textual Entailment Recognition. - Ken-Ichi Yokote; Shohei Tanaka; Mitsuru Ishizuka (TAC, 2011)

Similarity Is Not Entailment - Jointly Learning Similarity Transformation for Textual Entailment. - Ken-Ichi Yokote; Danushka Bollegala; Mitsuru Ishizuka (AAAI, 2012)

NAMI Question Answering System at QA Lab-PoliInfo. - Ken-Ichi Yokote; Makoto Iwayama (NTCIR, 2019)

Overview of the NTCIR-15 QA Lab-PoliInfo-2 Task. - Yasutomo Kimura; Hideyuki Shibuki; Hokuto Ototake; Yuzu Uchida; Keiichi Takamaru; Madoka Ishioroshi; Teruko Mitamura; Masaharu Yoshioka; Tomoyosi Akiba; Yasuhiro Ogawa; Minoru Sasaki; Ken-Ichi Yokote; et al. (NTCIR, 2020)

wfrnt Team at the NTCIR-15 QA Lab-PoliInfo-2 Task. - Ken-Ichi Yokote (NTCIR, 2020)

Team Hitachi @ AutoMin 2021: Reference-free Automatic Minuting Pipeline with Argument Structure Construction over Topic-based Summarization. - Atsuki Yamaguchi; Gaku Morio; Hiroaki Ozaki; Ken-Ichi Yokote; Kenji Nagamatsu (CoRR, 2021)

Overview of the NTCIR-16 QA Lab-PoliInfo-3 Task. - Yasutomo Kimura; Hideyuki Shibuki; Hokuto Ototake; Yuzu Uchida; Keiichi Takamaru; Madoka Ishioroshi; Masaharu Yoshioka; Tomoyoshi Akiba; Yasuhiro Ogawa; Minoru Sasaki; Ken-Ichi Yokote; Kazuma Kadowaki; et al. (NTCIR, 2022)

Hitachi at SemEval-2023 Task 3: Exploring Cross-lingual Multi-task Strategies for Genre and Framing Detection in Online News. - Yuta Koreeda; Ken-Ichi Yokote; Hiroaki Ozaki; Atsuki Yamaguchi; Masaya Tsunokake; Yasuhiro Sogawa (SemEval@ACL, 2023)

Team Hitachi at SemEval-2023 Task 3: Exploring Cross-lingual Multi-task Strategies for Genre and Framing Detection in Online News. - Yuta Koreeda; Ken-Ichi Yokote; Hiroaki Ozaki; Atsuki Yamaguchi; Masaya Tsunokake; Yasuhiro Sogawa (CoRR, 2023)

Text Retrieval with Multi-Stage Re-Ranking Models. - Yuichi Sasazawa; Ken-Ichi Yokote; Osamu Imaichi; Yasuhiro Sogawa (CoRR, 2023)