collaborators

6 papers

cs.AI2026

LOGOS: A Living Logic for AI Agent Teams That Evolve With Humans

Yuma Ichikawa, Yamato Arai, Kosaku Kimura +2

AI agents are evolving from answer engines into persistent teams that use tools, delegate work, learn from experience, and modify the artifacts that shape their future behavior. Th…

cs.AI2026

EVE-Agent: Evidence-Verifiable Self-Evolving Agents

Yamato Arai, Yuma Ichikawa

Self-evolving agents should not train on examples they cannot justify. Data-free self-evolving search agents offer a scalable route to systems that generate their own questions, an…

cs.LG2026

OneComp: One-Line Revolution for Generative AI Model Compression

Yuma Ichikawa, Keiji Kimura, Akihiro Yoshida +11

Deploying foundation models is increasingly constrained by memory footprint, latency, and hardware costs. Post-training compression can mitigate these bottlenecks by reducing the p…

cond-mat.dis-nn2026

Phase Transitions in a Modified Ising Spin Glass Model: A Tensor-Network-based Sampling Approach

Takumi Oshima, Yamato Arai, Koji Hukushima

Phase transitions in a modified Nishimori model, including the model considered by Kitatani, on a two-dimensional square lattice are investigated using a tensor-network-based sampl…

cs.LG2026

Quantization Error Propagation: Revisiting Layer-Wise Post-Training Quantization

Yamato Arai, Yuma Ichikawa

Layer-wise PTQ is a promising technique for compressing large language models (LLMs), due to its simplicity and effectiveness without requiring retraining. However, recent progress…

cs.LG2024

Optimization by Parallel Quasi-Quantum Annealing with Gradient-Based Sampling

Yuma Ichikawa, Yamato Arai

Learning-based methods have gained attention as general-purpose solvers due to their ability to automatically learn problem-specific heuristics, reducing the need for manually craf…