Yoshihiro Ueda

Also published as: Y. Ueda


A Large-Scale Corpus of E-mail Conversations with Standard and Two-Level Dialogue Act Annotations
Motoki Taniguchi | Yoshihiro Ueda | Tomoki Taniguchi | Tomoko Ohkuma
Proceedings of the 28th International Conference on Computational Linguistics

We present a large-scale corpus of e-mail conversations with domain-agnostic and two-level dialogue act (DA) annotations towards the goal of a better understanding of asynchronous conversations. We annotate over 6,000 messages and 35,000 sentences from more than 2,000 threads. For a domain-independent and application-independent DA annotations, we choose ISO standard 24617-2 as the annotation scheme. To assess the difficulty of DA recognition on our corpus, we evaluate several models, including a pre-trained contextual representation model, as our baselines. The experimental results show that BERT outperforms other neural network models, including previous state-of-the-art models, but falls short of a human performance. We also demonstrate that DA tags of two-level granularity enable a DA recognition model to learn efficiently by using multi-task learning. An evaluation of a model trained on our corpus against other domains of asynchronous conversation reveals the domain independence of our DA annotations.


Evaluation of Phrase-Representation Summarization based on Information Retrieval Task
Mamiko Oka | Yoshihiro Ueda
NAACL-ANLP 2000 Workshop: Automatic Summarization

Toward the “At-a-glance” Summary: Phrase-representation Summarization Method
Yoshihiro Ueda | Mamiko Oka | Takahiro Koyama | Tadanobu Miyauchi
COLING 2000 Volume 2: The 18th International Conference on Computational Linguistics


Generation for Dialogue Translation Using Typed Feature Structure Unification
Yoshihiro Ueda | Kiyoshi Kogure
COLING 1990 Volume 1: Papers presented to the 13th International Conference on Computational Linguistics


An Attempt to Computerized Dictionary Data Bases
M. Nagao | J. Tsujii | Y. Ueda | M. Takiyama
COLING 1980 Volume 1: The 8th International Conference on Computational Linguistics