Sho Yokoi (横井 祥)

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Sho Yokoi

Contact

Research Interest

  • {geometric, statistical} structure of {language, intelligence}

  • {visual, tangible} understanding of {language, intelligence}

Publications

[Google Scholar] [dblp] [Semantic Scholar] [ACL Anthology] [OpenReview] [Scopus] [ORCiD] [researchmap]

Preprint

  • Masataka Yoneda, Yusuke Matsushita, Go Kamoda, Kohei Suenaga, Takuya Akiba, Masaki Waga, Sho Yokoi.
    SoftMatcha 2: A Fast and Soft Pattern Matcher for Trillion-Scale Corpora.
    [Project Page] [arXiv] [Demo] [GitHub]
    [ITmedia AI+ (ja)]

  • Masaki Sakata, Benjamin Heinzerling, Takumi Ito, Sho Yokoi, Kentaro Inui.
    Linear Representations of Hierarchical Concepts in Language Models .
    [arXiv]

2026

  • Tomomasa Hara, Hiroto Kurita, Masaaki Imaizumi, Kentaro Inui, Sho Yokoi.
    Why Mean Pooling Works: Quantifying Second-Order Collapse in Text Embeddings.
    In Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (ACL), pp.**–**, 2026.

  • Yuji Yamamoto, Shinnosuke Isono, Yoshinobu Kawahara, Sho Yokoi.
    Timesteps of Mamba Align with Human Reading Times.
    In Findings of the Association for Computational Linguistics: ACL 2026, pp.**–**, 2026.

2025

2024

2023

2022

2021

  • Ayato Toyokuni, Sho Yokoi, Hisashi Kashima, Makoto Yamada.
    Computationally Efficient Wasserstein Loss for Structured Labels.
    In Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Student Research Workshop, pp.1–7, 2021.
    [arXiv] [paper]

2020

2018

2017

2016

Publications (Domestic)

Non-refereed publications, Talks

Workshops

Domestic Conferences

Education

  • Ph.D. in Information Sciences, April 2017 – March 2020. Tohoku University. Supervisor: Prof. Kentaro Inui.

  • M.S. in Information Sciences, April 2015 – March 2017. Tohoku University. Supervisor: Prof. Kentaro Inui.

  • B.S. in Engineering, April 2011 – March 2015. Kyoto University. Supervisor: Prof. Hisashi Kashima.

Professional Activities

International Conference (reviewer, chair)

Member