activity
20242026
collaborators

6 papers

cs.CL2026

Kimi K3: Open Frontier Intelligence

Kimi Team, Tongtong Bai, Yifan Bai +398

We introduce Kimi K3, a 2.8T parameter Mixture-of-Experts model with 104 billion activated parameters, native vision capabilities, and a 1-million-token context window. Kimi K3 is…

cs.LG2026

Provable Knowledge Acquisition and Extraction in One-Layer Transformers

Ruichen Xu, Kexin Chen

Large language models may encounter factual knowledge during pre-training yet fail to reliably use that knowledge after fine-tuning. Despite growing empirical evidence that MLP lay…

cs.GT2025

Generative AI as Digital Representatives in Collective Decision-Making: A Game-Theoretical Approach

Kexin Chen, Jianwei Huang, Yuan Luo

Generative Artificial Intelligence (GenAI) enables digital representatives to make decisions on behalf of team members in collaborative tasks, but faces challenges in accurately re…

cs.LG2025

Rethinking Benign Overfitting in Two-Layer Neural Networks

Ruichen Xu, Kexin Chen

Recent theoretical studies (Kou et al., 2023; Cao et al., 2022) have revealed a sharp phase transition from benign to harmful overfitting when the noise-to-feature ratio exceeds a…

cs.AI2025

General Scales Unlock AI Evaluation with Explanatory and Predictive Power

Lexin Zhou, Lorenzo Pacchiardi, Fernando Martínez-Plumed +23

Ensuring safe and effective use of AI requires understanding and anticipating its performance on novel tasks, from advanced scientific challenges to transformed workplace activitie…

cs.CL2024

Exploring Complex Mental Health Symptoms via Classifying Social Media Data with Explainable LLMs

Kexin Chen, Noelle Lim, Claire Lee +1

We propose a pipeline for gaining insights into complex diseases by training LLMs on challenging social media text data classification tasks, obtaining explanations for the classif…