activity
20222026
most citedAlmost Optimal Variance-Constrained Best Arm Identification

2 citations · 2 across the 8 of their papers we have counts for

collaborators

9 papers

cs.LG2026

SPec: Adaptive Self-Speculative Decoding for Vision-Language Models

Yuqi Huang, Xingyao Li, Yunlong Hou +3

Speculative Decoding (SD) has demonstrated its efficacy in accelerating large language model inference, but for Vision-Language Models (VLMs), the diverse input modalities make it…

cs.LG2026

Bayesian Best-Arm Identification with Abstention: A Polynomial-to-Exponential Phase Transition

Yuqi Huang, Yunlong Hou, Vincent Y. F. Tan

We study the Bayesian fixed-budget best-arm identification problem in which a learner can abstain from making a terminal recommendation. Subject to an abstention budget , we ana…

cs.LG2026

On the Benefits of Free Exploration for Regret Minimization in Multi-Armed Bandits

Yunlong Hou, Zixin Zhong, Vincent Y. F. Tan

We study a stochastic multi-armed bandit problem where an agent is granted a free exploration budget before regret accumulates, a setting not captured by the classic regret minimiz…

cs.LG2026

Demystifying the Slash Pattern in Attention: The Role of RoPE

Yuan Cheng, Fengzhuo Zhang, Yunlong Hou +5

Large Language Models (LLMs) often exhibit slash attention patterns, where attention scores concentrate along the -th sub-diagonal for some offset . These patterns play a key…

cs.LG2025

BanditSpec: Adaptive Speculative Decoding via Bandit Algorithms

Yunlong Hou, Fengzhuo Zhang, Cunxiao Du +6

Speculative decoding has emerged as a popular method to accelerate the inference of Large Language Models (LLMs) while retaining their superior text generation performance. Previou…

cs.CV2024

Enhancing Long Video Generation Consistency without Tuning

Xingyao Li, Fengzhuo Zhang, Jiachun Pan +3

Despite the considerable progress achieved in the long video generation problem, there is still significant room to improve the consistency of the generated videos, particularly in…

cs.LG2024

Almost Minimax Optimal Best Arm Identification in Piecewise Stationary Linear Bandits

Yunlong Hou, Vincent Y. F. Tan, Zixin Zhong

We propose a {\em novel} piecewise stationary linear bandit (PSLB) model, where the environment randomly samples a context from an unknown probability distribution at each changepo…

cs.LG2023

Probably Anytime-Safe Stochastic Combinatorial Semi-Bandits

Yunlong Hou, Vincent Y. F. Tan, Zixin Zhong

Motivated by concerns about making online decisions that incur undue amount of risk at each time step, in this paper, we formulate the probably anytime-safe stochastic combinatoria…

cs.LG2022★ 2 cited

Almost Optimal Variance-Constrained Best Arm Identification

Yunlong Hou, Vincent Y. F. Tan, Zixin Zhong

We design and analyze VA-LUCB, a parameter-free algorithm, for identifying the best arm under the fixed-confidence setup and under a stringent constraint that the variance of the c…