Tatsuo Yamashita


2025

pdf bib
Did the Writer Actually Visit the Location? Analysis of Location Reviews from Visit Experience
Aitaro Yamamoto | Hiroki Ouchi | Kota Tsubouchi | Tatsuo Yamashita | Ryo Tsujimoto | Yuki Matsuda | Hirohiko Suwa
Proceedings of the 14th International Joint Conference on Natural Language Processing and the 4th Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics

We investigate the characteristics of location review texts written on the basis of actual visit experiences or without any visit experiences. Specifically, we formalize this as a binary classification task and propose a data construction framework that labels reviews as Visit or NotVisit by linking them with users’ GPS-based movement data. We train a logistic regression model on the dataset and evaluate it alongside human annotators and a large language model (LLM). The results show that the task is more challenging for humans and LLMs than for the simple trained model.

2000

pdf bib
Language Independent Morphological Analysis
Tatsuo Yamashita | Yuji Matsumoto
Sixth Applied Natural Language Processing Conference

pdf bib
Using Machine Learning Methods to Improve Quality of Tagged Corpora and Learning Models
Yuji Matsumoto | Tatsuo Yamashita
Proceedings of the Second International Conference on Language Resources and Evaluation (LREC’00)