activity
20242026
collaborators

8 papers

cs.NE2026

Evolutionary Context Search for Automated Skill Acquisition

Qi Sun, Stefan Nielsen, Rio Yokota +1

Large Language Models cannot reliably acquire new knowledge post-deployment -- even when relevant text resources exist, models fail to transform them into actionable knowledge with…

cs.LG2025

Optimal Sparsity of Mixture-of-Experts Language Models for Reasoning Tasks

Taishi Nakamura, Satoki Ishikawa, Masaki Kawamura +4

Empirical scaling laws have driven the evolution of large language models (LLMs), yet their coefficients shift whenever the model architecture or data pipeline changes. Mixture-of-…

cs.LG2025

Rewriting Pre-Training Data Boosts LLM Performance in Math and Code

Kazuki Fujii, Yukito Tajima, Sakae Mizuki +14

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…

cs.CL2025

Drop-Upcycling: Training Sparse Mixture of Experts with Partial Re-initialization

Taishi Nakamura, Takuya Akiba, Kazuki Fujii +3

The Mixture of Experts (MoE) architecture reduces the training and inference cost significantly compared to a dense model of equivalent capacity. Upcycling is an approach that init…

cs.CL2025

Building Instruction-Tuning Datasets from Human-Written Instructions with Open-Weight Large Language Models

Youmi Ma, Sakae Mizuki, Kazuki Fujii +12

Instruction tuning is crucial for enabling Large Language Models (LLMs) to solve real-world tasks. Prior work has shown the effectiveness of instruction-tuning data synthesized sol…

cs.CL2024

Why We Build Local Large Language Models: An Observational Analysis from 35 Japanese and Multilingual LLMs

Koshiro Saito, Sakae Mizuki, Masanari Ohi +11

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-spe…