Kohei Suenaga — accepted AI-conference papers

2026

A Fast and Soft Pattern Matcher for Trillion-Scale Corpus

Masataka Yoneda, Yusuke Matsushita, Go Kamoda, Kohei Suenaga, Takuya Akiba, Masaki Waga +1

ICML 2026poster

We present an ultra-fast and flexible search algorithm that enables search over trillion-scale natural language corpora in under 0.3 seconds while handling semantic variations (substitution, insertion, and deletion). Our approach employs string matching based on suffix arrays that scales well with c…

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2025

SoftMatcha: A Soft and Fast Pattern Matcher for Billion-Scale Corpus Searches

Hiroyuki Deguchi, Go Kamoda, Yusuke Matsushita, Chihiro Taguchi, Kohei Suenaga, Masaki Waga +1

ICLR 2025poster

Researchers and practitioners in natural language processing and computational linguistics frequently observe and analyze the real language usage in large-scale corpora. For that purpose, they often employ off-the-shelf pattern-matching tools, such as grep, and keyword-in-context concordancers, whic…

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