Author

Shotaro Ishihara

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#natural language process... Jun 2026

An Empirical Analysis of Factual Errors in Human-Written Text and its Application

This work distill a taxonomy of human-induced factual errors by analyzing corrections of newspaper articles, a representative source of text that is guaranteed to be human-written and contains few grammatical errors, and evaluates the FED capability of vanilla LLMs on synthesized realistic test cases and real correctio...

Kazuma Iwamoto, Kazumasa Omura, Shotaro Ishihara · arXiv.org · 0 citations

#natural language process... Preprint Sep 2026

Reproducing Omitted Temporal Expressions in Japanese News for Retrieval-Augmented Applications

News articles often contain omitted temporal expressions, such as day-only or month-only mentions, which must be interpreted with reference to the publication date. When such articles are indexed or processed as standalone text in search and retrieval-augmented generation (RAG) systems, these omissions can cause tempor...

Tomoaki Yasuda, Shotaro Ishihara · 0 citations