Updated on 2026/07/24

写真a

 
MA YOUMI
 
Organization
School of Computing Assistant Professor
Title
Assistant Professor
External link

Degree

  • Doctor of Engineering ( 2024.9   Tokyo Institute of Technology )

Research Interests

  • Machine Learning

  • Natural Language Processing

  • Artificial Intelligence

Research Areas

  • Informatics / Intelligent informatics  / Natural Language Processing

Education

  • Tokyo Institute of Technology   School of Computing   Department of Computer Science

    2021.9 - 2024.9

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    Country: Japan

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  • Tokyo Institute of Technology   School of Computing   Department of Computer Science

    2019.9 - 2021.9

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    Country: Japan

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  • ShanghaiTech University   School of Information Science and Technology

    2015.9 - 2019.7

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    Country: China

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Research History

  • Institute of Science Tokyo   School of Computing   Assistant Professor

    2024.10

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    Country:Japan

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Professional Memberships

  • 言語処理学会

    2021.1

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  • Association for Computational Linguistics (ACL)

    2020.1

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Committee Memberships

  • 情報処理学会NL研   運営委員  

    2026.4   

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    Committee type:Academic society

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  • 言語処理学会年次大会   プログラム委員  

    2025.4   

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    Committee type:Academic society

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  • 言語処理学会   編集委員  

    2025.3   

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    Committee type:Academic society

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  • 言語処理若手シンポジウム(YANS)   運営委員  

    2024.4 - 2026.3   

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    Committee type:Academic society

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Papers

  • Neuron Level Analysis of Large Language Model in Legal Domain Reasoning

    Eri Onami, Youmi Ma, Shuhei Kurita, Naoaki Okazaki

    2026.6

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    Language:English  

    We presented a neuron-level analysis of legal-domain reasoning in LLMs, comparing it with other applied domain tasks across seven open-weight models. Using neuron attribution scores to rank and suppress influential neurons, we confirmed that suppressing the identified neurons collapses accuracy on the target task, whereas suppressing the same number of random neurons does not. We further found a small subset of neurons influential across all seven tasks; once these are removed, suppressing the remaining neurons degrades only the task they were identified from, revealing genuinely task-specific neurons in every model studied. Within the legal domain, the three benchmarks exhibit relatively high neuron overlap and tend to be affected jointly, suggesting of legal components neurons that span jurisdictions. The distribution of identified neurons in our experiments suggests that the hypothesis that influential neurons are concentrated in middle MLP layers may depend on the input format and content, rather than being a universal phenomenon.

    arXiv

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    Other Link: https://arxiv.org/pdf/2606.15884v1

  • Beyond Perplexity: UTF-8 Validity in Byte-aware Language Models Reviewed International coauthorship International journal

    Sangwhan Moon, Daisuke Oba, Youmi Ma, Tatsuya Hiraoka, Naoaki Okazaki

    Forty-Third International Conference on Machine Learning   2026.6

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    Byte-level tokenization enables language models to handle any Unicode input, but models can generate invalid UTF-8 sequences when encountering rare or unseen characters. We investigate the relationship between training scale and UTF-8 generation reliability with a 355M parameter model trained on 80B tokens from a balanced multilingual corpus of English, Japanese, Korean, and Chinese. We introduce multiple evaluation protocols that isolate UTF-8 structural validity from language modeling. UTF-8 validity convergence lags perplexity by a roughly a factor of two: perplexity stabilizes after 2.1B tokens, but UTF-8 validity requires 4.2B tokens. In context-free generation, rare characters achieve higher structural validity than common characters, suggesting over-specialization of frequent character representations. Through experiments, we observed that reliable UTF-8 generation is a distinct capability requiring evaluation beyond perplexity.

    arXiv

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    Other Link: https://arxiv.org/pdf/2606.14122v2

  • Synthesizing Instruction-Tuning Datasets with Contrastive Decoding Reviewed International journal

    Tatsuya Ichinose, Youmi Ma, Masanari Oi, Ryuto Koike, Naoaki Okazaki

    The Third Annual Conference on Language Modeling   2026.4

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    Using responses generated by high-performing large language models (LLMs) for instruction tuning has become a widely adopted approach. However, the existing literature overlooks a property of LLM-generated responses: they conflate world knowledge acquired during pre-training with instruction-following capabilities acquired during post-training. We hypothesize that disentangling the instruction-following capabilities from pre-trained knowledge improves the effectiveness of instruction tuning. To this end, we propose CoDIT, a method that applies contrastive decoding between a post-trained model and its pre-trained counterpart during response generation. The method suppresses pre-trained knowledge shared between the two models while amplifying the instruction-following behavior acquired via post-training, resulting in responses that more purely reflect instruction-following capabilities. Experiment results demonstrate that models trained on datasets constructed via CoDIT consistently outperform those trained on directly generated responses. Training on our datasets also yields better performance than on existing publicly available instruction-tuning datasets across multiple benchmarks. Furthermore, we theoretically and empirically show that CoDIT can be interpreted as distilling the chat vector from parameter space to text space, enabling the transfer of instruction-tuning capabilities across models of different architectures.

    arXiv

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    Other Link: https://arxiv.org/pdf/2604.13538v1

  • Rewriting Pre-Training Data Boosts LLM Performance in Math and Code. Reviewed International journal

    Kazuki Fujii, Yukito Tajima, Sakae Mizuki, Hinari Shimada, Taihei Shiotani, Koshiro Saito, Masanari Ohi, Masaki Kawamura, Taishi Nakamura, Takumi Okamoto, Shigeki Ishida, Kakeru Hattori, Youmi Ma, Hiroya Takamura, Rio Yokota, Naoaki Okazaki

    The Fourteenth International Conference on Learning Representations (ICLR)   abs/2505.02881   2026.4

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    The performance of large language models (LLMs) in program synthesis and mathematical reasoning is fundamentally limited by the quality of their pre-training corpora. We introduce two openly licensed pre-training datasets, released under the Llama 3.3 Community License, that significantly enhance LLM performance by systematically rewriting public data. SwallowCode ($\approx$16.1 billion tokens) refines Python snippets from The-Stack-v2 through a novel four-stage pipeline: syntax validation, pylint-based style filtering, and a two-stage LLM rewriting process that enforces style conformity and transforms snippets into self-contained, algorithmically efficient examples. Unlike prior methods that rely on exclusionary filtering or limited transformations, our transform-and-retain approach refines low-quality code, maximizing data utility. SwallowMath ($\approx$2.3 billion tokens) enhances Finemath-4+ by removing boilerplate, restoring context, and reformatting solutions into concise, step-by-step explanations. Within a fixed 50 billion token training budget, continual pre-training of Llama-3.1-8B with SwallowCode boosts pass@1 by +17.0 on HumanEval and +16.1 on HumanEval+ compared to Stack-Edu, surpassing the baseline model's code generation capabilities. Similarly, substituting SwallowMath yields +12.4 accuracy on GSM8K and +7.6 on MATH. Ablation studies confirm that each pipeline stage contributes incrementally, with rewriting yielding the largest gains. By releasing datasets, prompts, checkpoints, and pipeline code, we ensure reproducibility and provide a transferable transform-and-retain methodology that can be adapted to other base models and LLM rewriting setups.

    DOI: 10.48550/arXiv.2505.02881

    arXiv

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  • From Interpretability to Performance: Optimizing Retrieval Heads for Long-Context Language Models Reviewed International journal

    Youmi Ma, Naoaki Okazaki

    Findings of the Association for Computational Linguistics: ACL 2026   2026.1

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

    Advances in mechanistic interpretability have identified special attention heads, known as retrieval heads, that are responsible for retrieving information from the context. However, the role of these retrieval heads in improving model performance remains unexplored. This work investigates whether retrieval heads can be leveraged to enhance the long-context capabilities of LLMs. Specifically, we propose RetMask, a method that generates training signals by contrasting normal model outputs with those from an ablated variant in which the retrieval heads are masked. This mechanism-based approach achieves substantial improvements: +2.28 points on HELMET at 128K for Llama-3.1, with +70% gains on generation with citation and +32% on passage re-ranking, while preserving performance on general tasks. Experiments across four models in three families demonstrate that RetMask consistently improves long-context performance, where gains correlate with the sparsity of the retrieval score distribution: models with sparser distributions, where retrieval capabilities are concentrated in a small set of heads, respond more strongly, while those with less sparse distributions show more modest gains. These results validate the functional role of retrieval heads and show that mechanistic insights can be transformed into performance enhancements.

    arXiv

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    Other Link: https://arxiv.org/pdf/2601.11020v3

  • 対照的デコーディングを用いた指示学習データの合成

    一瀬達矢, MA Youmi, 大井聖也, 小池隆斗, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   32nd   2026

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    Language:Japanese  

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  • 蒸留による日英推論型大規模言語モデル構築戦略の探索

    水木栄, 藤井一喜, 川村政貴, NGUYEN Tien Dung, 片山結太, 齋藤幸史郎, 一瀬達矢, 宮本空, 松下直矢, 大井聖也, MA Youmi, 太田晋, 大葉大輔, 高村大也, 横田理央, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   32nd   2026

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  • 多段階プロンプトを用いた推論過程の改善による大規模言語モデルの翻訳性能の向上

    松下直矢, MA Youmi, 大葉大輔, 水木栄, 岡崎直観

    情報処理学会研究報告(Web)   2026 ( NL-267 )   2026

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    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

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  • 検索ヘッドに基づく大規模言語モデルの長文脈処理の改善 Invited

    MA Youmi, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   32nd   2026

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

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  • QuantumBench: A Benchmark for Quantum Problem Solving

    Shunya Minami, Tatsuya Ishigaki, Ikko Hamamura, Taku Mikuriya, Youmi Ma, Naoaki Okazaki, Hiroya Takamura, Yohichi Suzuki, Tadashi Kadowaki

    2025.10

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    Large language models are now integrated into many scientific workflows, accelerating data analysis, hypothesis generation, and design space exploration. In parallel with this growth, there is a growing need to carefully evaluate whether models accurately capture domain-specific knowledge and notation, since general-purpose benchmarks rarely reflect these requirements. This gap is especially clear in quantum science, which features non-intuitive phenomena and requires advanced mathematics. In this study, we introduce QuantumBench, a benchmark for the quantum domain that systematically examine how well LLMs understand and can be applied to this non-intuitive field. Using publicly available materials, we compiled approximately 800 questions with their answers spanning nine areas related to quantum science and organized them into an eight-option multiple-choice dataset. With this benchmark, we evaluate several existing LLMs and analyze their performance in the quantum domain, including sensitivity to changes in question format. QuantumBench is the first LLM evaluation dataset built for the quantum domain, and it is intended to guide the effective use of LLMs in quantum research.

    arXiv

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    Other Link: https://arxiv.org/pdf/2511.00092v1

  • Building Instruction-Tuning Datasets from Human-Written Instructions with Open-Weight Large Language Models. Reviewed International journal

    Youmi Ma, Sakae Mizuki, Kazuki Fujii, Taishi Nakamura, Masanari Ohi, Hinari Shimada, Taihei Shiotani, Koshiro Saito, Koki Maeda, Kakeru Hattori, Takumi Okamoto, Shigeki Ishida, Rio Yokota, Hiroya Takamura, Naoaki Okazaki

    Second Conference on Language Modeling (COLM)   abs/2503.23714   2025.10

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    Authorship:Lead author   Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.48550/arXiv.2503.23714

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  • Sampling-based Pseudo-Likelihood for Membership Inference Attacks. Reviewed International coauthorship International journal

    Masahiro Kaneko, Youmi Ma, Yuki Wata, Naoaki Okazaki

    Findings of the Association for Computational Linguistics   to appear   2025.8

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    DOI: 10.48550/arXiv.2404.11262

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  • Improving Implicit Sentiments Analysis via Explanations of Multiple Perspectives Reviewed International journal

    An Wang, Huidong Jiang, Youmi Ma, Junfeng Jiang, Ao Liu, Naoaki Okazaki

    IEEE Access   13   61136 - 61148   2025

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Institute of Electrical and Electronics Engineers (IEEE)  

    DOI: 10.1109/access.2025.3556762

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  • Swallowコーパスv2:教育的な日本語ウェブコーパスの構築

    服部翔, 岡崎直観, 水木栄, 藤井一喜, 中村泰士, 大井聖也, 塩谷泰平, 齋藤幸史郎, MA Youmi, 前田航希, 岡本拓己, 石田茂樹, 横田理央, 高村大也

    言語処理学会年次大会発表論文集(Web)   31st   2025

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    Language:Japanese  

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  • 新聞記事からつくる 時事と社会に強い日本語LLM

    服部翔, 水木栄, 藤井一喜, 中村泰士, 塩谷泰平, 植木快, 新妻巧朗, 川畑輝, 田森秀明, MA Youmi, 前田航希, 大井聖也, 齋藤幸史郎, 岡本拓己, 石田茂樹, 横田理央, 高村大也, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   31st   2025

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  • 模倣学習による大規模言語モデルの指示チューニング

    MA Youmi, 水木栄, 藤井一喜, 中村泰士, 大井聖也, 島田比奈理, 塩谷泰平, 齋藤幸史郎, 前田航希, 服部翔, 岡本拓己, 石田茂樹, 横田理央, 高村大也, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   31st   2025

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  • 大規模言語モデルはデータ漏洩を隠蔽できるのか International coauthorship

    高橋侑成, MA Youmi, 金子正弘, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   31st   2025

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  • Why We Build Local Large Language Models: An Observational Analysis from 35 Japanese and Multilingual LLMs. Reviewed International journal

    Koshiro Saito, Sakae Mizuki, Masanari Ohi, Taishi Nakamura, Taihei Shiotani, Koki Maeda, Youmi Ma, Kakeru Hattori, Kazuki Fujii, Takumi Okamoto, Shigeki Ishida, Hiroya Takamura, Rio Yokota, Naoaki Okazaki

    The 1st Workshop on Multilingual and Equitable Language Technologies (MELT)   abs/2412.14471   2024

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    Why do we build local large language models (LLMs)? What should a local LLM learn from the target language? Which abilities can be transferred from other languages? Do language-specific scaling laws exist? To explore these research questions, we evaluated 35 Japanese, English, and multilingual LLMs on 19 evaluation benchmarks for Japanese and English, taking Japanese as a local language. Adopting an observational approach, we analyzed correlations of benchmark scores, and conducted principal component analysis (PCA) on the scores to derive \textit{ability factors} of local LLMs. We found that training on English text can improve the scores of academic subjects in Japanese (JMMLU). In addition, it is unnecessary to specifically train on Japanese text to enhance abilities for solving Japanese code generation, arithmetic reasoning, commonsense, and reading comprehension tasks. In contrast, training on Japanese text could improve question-answering tasks about Japanese knowledge and English-Japanese translation, which indicates that abilities for solving these two tasks can be regarded as \textit{Japanese abilities} for LLMs. Furthermore, we confirmed that the Japanese abilities scale with the computational budget for Japanese text.

    DOI: 10.48550/arXiv.2412.14471

    arXiv

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  • Generative Data Augmentation for Aspect Sentiment Quad Prediction Reviewed

    Wang An, Jiang Junfeng, Ma Youmi, Liu Ao, Okazaki Naoaki

    Journal of Natural Language Processing   31 ( 4 )   1523 - 1544   2024

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Association for Natural Language Processing  

    Aspect sentiment quad prediction (ASQP) analyzes the aspect terms, opinion terms, sentiment polarity, and aspect categories in a text. One challenge in this task is the scarcity of data owing to the high annotation cost. Data augmentation techniques are commonly used to address this issue. However, existing approaches simply rewrite texts in the training data, restricting the semantic diversity of the generated data and impairing the quality due to the inconsistency between text and quads. To address these limitations, we augment quads and train a quads-to-text model to generate corresponding texts. Furthermore, we designed novel strategies to filter out low-quality data and balance the sample difficulty distribution of the augmented dataset. Empirical studies on two ASQP datasets demonstrate that our method outperforms other data augmentation methods and achieves state-of-the-art performance on the benchmarks.

    DOI: 10.5715/jnlp.31.1523

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    Other Link: https://dblp.uni-trier.de/rec/conf/starsem/2023

  • Incorporating Evidence Retrieval into Document-Level Relation Extraction by Guiding Attention Reviewed

    Ma Youmi, Wang An, Okazaki Naoaki

    Journal of Natural Language Processing   31 ( 1 )   105 - 133   2024

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Association for Natural Language Processing  

    Document-level relation extraction (DocRE) is the task of identifying all relations between each entity pair in a document. Evidence, a set of sentences containing enough clues for deciding the relation between an entity pair, has been shown to benefit relation extraction. Previous works tackle Evidence Retrieval (ER) and DocRE as separate tasks, while this work propose to incorporate ER directly into the DocRE model. Specifically, we guide the self attention mechanism to assign higher weights on evidence when encoding entity pairs. In this way we obtain contextualized representations focused on evidence. We further propose to learn ER on massive data without evidence annotations from automatically-generated evidence. Experimental results show that our approach exhibits state-of-the-art performance on DocRED and Re-DocRED, two popular benchmarks for DocRE, in both DocRE and ER.

    DOI: 10.5715/jnlp.31.105

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  • Building a Japanese Document-Level Relation Extraction Dataset Assisted by Cross-Lingual Transfer. Reviewed International journal

    Youmi Ma, An Wang, Naoaki Okazaki

    Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation(LREC/COLING)   2567 - 2579   2024

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    Authorship:Lead author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:ELRA and ICCL  

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    Other Link: https://dblp.uni-trier.de/rec/conf/coling/2024

  • Advantages of Training LLMs on Japanese Text

    齋藤幸史郎, 水木栄, 大井聖也, 中村泰士, 塩谷泰平, 前田航希, MA Youmi, 服部翔, 藤井一喜, 岡本拓己, 石田茂樹, 高村大也, 横田理央, 岡崎直観

    情報処理学会研究報告(Web)   2024 ( NL-261 )   2024

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    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

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  • 言語横断ラベル射影を用いた日本語文書レベル関係抽出データセットの構築

    MA Youmi, WANG An, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   30th   2024

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  • 大規模言語モデルに対するサンプリングを活用したメンバーシップ推論攻撃

    綿祐貴, 金子正弘, MA Youmi, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   30th   2024

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  • DREEAM: Guiding Attention with Evidence for Improving Document-Level Relation Extraction. Reviewed International journal

    Youmi Ma, An Wang, Naoaki Okazaki

    Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics(EACL)   1963 - 1975   2023

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    Authorship:Lead author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:Association for Computational Linguistics  

    DOI: 10.18653/v1/2023.eacl-main.145

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    Other Link: https://www.wikidata.org/entity/Q130600373

  • Improving Cross-Lingual Transfer for Open Information Extraction with Linguistic Feature Projection Reviewed International coauthorship International journal

    Youmi Ma, Bhushan Kotnis, Carolin Lawrence, Goran Glavaš, Naoaki Okazaki

    Proceedings of the 3rd Workshop on Multi-lingual Representation Learning (MRL)   125 - 138   2023

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    Authorship:Lead author   Publishing type:Research paper (international conference proceedings)   Publisher:Association for Computational Linguistics  

    DOI: 10.18653/v1/2023.mrl-1.11

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  • クエリ指向要約におけるクエリと要約の統合的な生成

    服部翔, MA Youmi, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   29th   2023

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  • 文書レベル関係抽出における根拠認識の統合

    MA Youmi, WANG An, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   29th   2023

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  • Joint Entity and Relation Extraction Based on Table Labeling Using Convolutional Neural Networks Reviewed International journal

    Youmi Ma, Tatsuya Hiraoka, Naoaki Okazaki

    Proceedings of the Sixth Workshop on Structured Prediction for NLP   11 - 21   2022.1

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    Authorship:Lead author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:Association for Computational Linguistics (ACL)  

    DOI: 10.18653/v1/2022.spnlp-1.2

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    Other Link: https://dblp.uni-trier.de/rec/conf/acl-spnlp/2022

  • Annotating Entity and Causal Relationships on Japanese Vehicle Recall Information. Reviewed International journal

    Hsuan-Yu Kuo, Youmi Ma, Naoaki Okazaki

    Proceedings of the 36th Pacific Asia Conference on Language, Information and Computation(PACLIC)   783 - 791   2022

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:De La Salle University  

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    Other Link: https://dblp.uni-trier.de/rec/conf/paclic/2022

  • Named Entity Recognition and Relation Extraction Using Enhanced Table Filling by Contextualized Representations Reviewed

    Ma Youmi, Hiraoka Tatsuya, Okazaki Naoaki

    Journal of Natural Language Processing   29 ( 1 )   187 - 223   2022

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Association for Natural Language Processing  

    In this study, we propose a method designed to extract named entities and relations from unstructured text based on table representations. To extract named entities, the proposed method computes representations for entity mentions and long-range dependencies using contextualized representations without hand-crafted features or complex neural network architectures. To extract relations, it applies a tensor dot product to predict all relation labels simultaneously without considering dependencies among relation labels. These advancements significantly simplify the proposed model and the associated algorithm for the extraction of named entities and relations. Despite its simplicity, the experimental results demonstrate that the proposed approach outperformed the state of the-art methods on multiple datasets. Compared with existing table-filling approaches, the proposed method achieved high performance solely by independently predicting the relation labels. In addition, we found that incorporating dependencies of relation labels into the system obtained little performance gain, indicating the effectiveness and sufficiency of the tensor dot-product mechanism for relation extraction in the proposed architecture. Experimental analyses were also performed to explore the benefits of joint training with named entity recognition in relation extraction in our design. We concluded that joint training with named entity recognition assists relation extraction to improve the span-level representation of entities.

    DOI: 10.5715/jnlp.29.187

    DOI: 10.48550/arxiv.2010.07522

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    Other Link: https://dblp.uni-trier.de/db/journals/corr/corr2010.html#abs-2010-07522

  • 畳み込みニューラルネットワークを用いた表ラベリングによる固有表現認識と関係抽出

    MA Youmi, 平岡達也, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   28th   2022

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  • BERTを用いたTable-Fillingによる固有表現抽出と関係抽出

    MA Youmi, 平岡達也, 岡崎直観

    言語処理学会年次大会発表論文集(Web)   27th   2021

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  • Semi-Supervised Semantic Dependency Parsing Using CRF Autoencoders. Reviewed International coauthorship International journal

    Zixia Jia, Youmi Ma, Jiong Cai, Kewei Tu

    Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics(ACL)   6795 - 6805   2020

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:Association for Computational Linguistics  

    DOI: 10.18653/v1/2020.acl-main.607

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    Other Link: https://dblp.uni-trier.de/rec/conf/acl/2020

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MISC

Presentations

  • 畳み込みニューラルネットワークを用いた表ラベリングによる固有表現認識と関係抽出

    MA Youmi, 平岡達也, 岡崎直観

    言語処理学会年次大会発表論文集(Web)  2022 

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    Event date: 2022

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  • BERTを用いたTable-Fillingによる固有表現抽出と関係抽出

    MA Youmi, 平岡達也, 岡崎直観

    言語処理学会年次大会発表論文集(Web)  2021 

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    Event date: 2021

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Awards

  • 第32回年次大会委員特別賞

    2026.3   言語処理学会  

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  • 2024年度論文賞

    2025.3   言語処理学会  

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  • 第18回シンポジウム奨励賞

    2023.9   NLP若手の会 (YANS)  

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  • 第29回年次大会最優秀賞

    2023.3   言語処理学会  

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  • 第27回年次大会若手奨励賞

    2021.3   言語処理学会  

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Research Projects

  • 大規模言語モデルの事後学習におけるタスク間干渉の解明と制御

    Grant number:26K21306  2026.4 - 2029.3

    日本学術振興会  科学研究費助成事業  若手研究

    Ma Youmi

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    Grant amount:\4550000 ( Direct Cost: \3500000 、 Indirect Cost:\1050000 )

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  • 「教育的価値」の高い日本語コーパスの構築による小規模言語モデルの研究

    Grant number:25H01137  2025.4 - 2028.3

    日本学術振興会  科学研究費助成事業  基盤研究(A)

    岡崎 直観, Ma Youmi

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    Grant amount:\47190000 ( Direct Cost: \36300000 、 Indirect Cost:\10890000 )

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  • 大規模言語モデルにおける長文脈処理能力の自律的獲得

    2025 - 2027

    科学技術振興機構  戦略的な研究開発の推進 戦略的創造研究推進事業 ACT-X 

    Ma Youmi

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    大規模言語モデル(LLM)には、処理する系列・文脈が長くなるにつれて性能が低下するという限界がある。本研究では、この限界を克服するため、モデル自身が短文脈処理における中間表現や出力結果を手かがりに、自律的に長文脈処理能力を獲得・高度化する方法を創出する。これにより、長い文脈に対しても正確に処理できるLLMを実現するのとともに、LLMが文脈を処理するメカニズムの解明に挑戦する。

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