collaborators

5 papers

cs.AI2025

Multi-Task Vehicle Routing Solver via Mixture of Specialized Experts under State-Decomposable MDP

Yuxin Pan, Zhiguang Cao, Chengyang Gu +4

Existing neural methods for multi-task vehicle routing problems (VRPs) typically learn unified solvers to handle multiple constraints simultaneously. However, they often underutili…

cs.LG2025

CrystalDiT: A Diffusion Transformer for Crystal Generation

Xiaohan Yi, Guikun Xu, Xi Xiao +4

We present CrystalDiT, a diffusion transformer for crystal structure generation that achieves state-of-the-art performance by challenging the trend of architectural complexity. Ins…

cs.LG2025

Injecting Imbalance Sensitivity for Multi-Task Learning

Zhipeng Zhou, Liu Liu, Peilin Zhao +1

Multi-task learning (MTL) has emerged as a promising approach for deploying deep learning models in real-life applications. Recent studies have proposed optimization-based learning…

cs.LG2025

HDT: Hierarchical Discrete Transformer for Multivariate Time Series Forecasting

Shibo Feng, Peilin Zhao, Liu Liu +2

Generative models have gained significant attention in multivariate time series forecasting (MTS), particularly due to their ability to generate high-fidelity samples. Forecasting…

cs.CL2025

Principled Data Selection for Alignment: The Hidden Risks of Difficult Examples

Chengqian Gao, Haonan Li, Liu Liu +3

The alignment of large language models (LLMs) often assumes that using more clean data yields better outcomes, overlooking the match between model capacity and example difficulty.…