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Mamoru Komachi

15 accepted papers

2026

Assessing the Capabilities of LLMs in Humor: A Multi-dimensional Analysis of Oogiri Generation and Evaluation

AAAI 2026technical

Computational humor is a frontier for creating advanced and engaging natural language processing (NLP) applications, such as sophisticated dialogue systems. While previous studies have benchmarked the humor capabilities of Large Language Models (LLMs), they have often relied on single-dimensional e

Cited by 0SourcePDFScholar
2025

A Fair Comparison without Translationese: English vs. Target-language Instructions for Multilingual LLMs

NAACL 2025short

Most large language models are multilingual instruction executors. Prior studies suggested that English instructions are more effective than target-language instructions even for non-English tasks; however, these studies often use datasets and instructions translated from English, which introduce bi…

2025

Analyzing Continuous Semantic Shifts with Diachronic Word Similarity Matrices

COLING 2025main

The meanings and relationships of words shift over time. This phenomenon is referred to as semantic shift. Research focused on understanding how semantic shifts occur over multiple time periods is essential for gaining a detailed understanding of semantic shifts. However, detecting change points onl…

2025

Targeted Syntactic Evaluation for Grammatical Error Correction

ACL 2025long

Language learners encounter a wide range of grammar items across the beginner, intermediate, and advanced levels.To develop grammatical error correction (GEC) models effectively, it is crucial to identify which grammar items are easier or more challenging for models to correct. However, conventional…

2024

Pruning Multilingual Large Language Models for Multilingual Inference

EMNLP 2024finding

Multilingual large language models (MLLMs), trained on multilingual balanced data, demonstrate better zero-shot learning performance in non-English languages compared to large language models trained on English-dominant data. However, the disparity in performance between English and non-English lang…

2024

WikiSQE: A Large-Scale Dataset for Sentence Quality Estimation in Wikipedia

AAAI 2024technical

Wikipedia can be edited by anyone and thus contains various quality sentences. Therefore, Wikipedia includes some poor-quality edits, which are often marked up by other editors. While editors' reviews enhance the credibility of Wikipedia, it is hard to check all edited text. Assisting in this proces…

2023

Enhancing Few-shot Cross-lingual Transfer with Target Language Peculiar Examples

ACL 2023findings

Few-shot cross-lingual transfer, fine-tuning Multilingual Masked Language Model (MMLM) with source language labeled data and a small amount of target language labeled data, provides excellent performance in the target language. However, if no labeled data in the target language are available, they n…

2022

Infinite SCAN: An Infinite Model of Diachronic Semantic Change

EMNLP 2022main

In this study, we propose a Bayesian model that can jointly estimate the number of senses of words and their changes through time.The model combines a dynamic topic model on Gaussian Markov random fields with a logistic stick-breaking process that realizes Dirichlet process. In the experiments, we e…

Cited by 6SourcePDFScholar
2021

From Masked Language Modeling to Translation: Non-English Auxiliary Tasks Improve Zero-shot Spoken Language Understanding

NAACL 2021long

The lack of publicly available evaluation data for low-resource languages limits progress in Spoken Language Understanding (SLU). As key tasks like intent classification and slot filling require abundant training data, it is desirable to reuse existing data in high-resource languages to develop mode…

2020

Cross-lingual Transfer Learning for Grammatical Error Correction

COLING 2020main

In this study, we explore cross-lingual transfer learning in grammatical error correction (GEC) tasks. Many languages lack the resources required to train GEC models. Cross-lingual transfer learning from high-resource languages (the source models) is effective for training models of low-resource lan…

2020

Generating Diverse Corrections with Local Beam Search for Grammatical Error Correction

COLING 2020main

In this study, we propose a beam search method to obtain diverse outputs in a local sequence transduction task where most of the tokens in the source and target sentences overlap, such as in grammatical error correction (GEC). In GEC, it is advisable to rewrite only the local sequences that must be…

2020

SOME: Reference-less Sub-Metrics Optimized for Manual Evaluations of Grammatical Error Correction

COLING 2020main

We propose a reference-less metric trained on manual evaluations of system outputs for grammatical error correction (GEC). Previous studies have shown that reference-less metrics are promising; however, existing metrics are not optimized for manual evaluations of the system outputs because no datase…