activity
20232026
collaborators

6 papers

cs.AI2026

Learning to Prove, Not Just to Answer: Reinforcement Learning from Formal Verification for Natural-Language Logical Reasoning

Qili Zhang, Qianren Mao, Hanze Cai +11

Large language models (LLMs) are increasingly deployed for natural-language logical reasoning, where the final answer is easy to check but the proof behind it is not. In natural-la…

cs.CL2026

Index SLM Technical Report

Tianjiao Li, Lusheng Zhang, Shien He +11

We present Index-1.9B, a series of open small language models developed at Bilibili. The series comprises four models: Index-1.9B-Base, a foundation model with 1.9 billion non-embe…

cs.LG2026

When Does Deep RL Beat Calibrated Baselines? A Benchmark Study on Adaptive Resource Control

Guilin Zhang, Chuanyi Sun, Kai Zhao +3

A properly calibrated rule-based autoscaler can beat every one of six mainstream deep reinforcement learning (DRL) algorithms on cost across every workload we test - so when, if ev…

cs.CL2025

SABER: Switchable and Balanced Training for Efficient LLM Reasoning

Kai Zhao, Yanjun Zhao, Jiaming Song +4

Large language models (LLMs) empowered by chain-of-thought reasoning have achieved impressive accuracy on complex tasks but suffer from excessive inference costs and latency when a…

cs.MA2024

OPTIMA: Optimized Policy for Intelligent Multi-Agent Systems Enables Coordination-Aware Autonomous Vehicles

Rui Du, Kai Zhao, Jinlong Hou +2

Coordination among connected and autonomous vehicles (CAVs) is advancing due to developments in control and communication technologies. However, much of the current work is based o…

cs.LG2023

ENOTO: Improving Offline-to-Online Reinforcement Learning with Q-Ensembles

Kai Zhao, Jianye Hao, Yi Ma +3

Offline reinforcement learning (RL) is a learning paradigm where an agent learns from a fixed dataset of experience. However, learning solely from a static dataset can limit the pe…