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Xianliang Yang

5 accepted papers

2026

Holdout-Loss-Based Data Selection for LLM Finetuning via In-Context Learning

ICLR 2026poster

Fine-tuning large pretrained language models is a common approach for aligning them with human preferences, but noisy or off-target examples can dilute supervision. While small, well-chosen datasets often match the performance of much larger ones, systematic and efficient ways to identify high-value…

Cited by 0SourceScholar
2026

The Quality-Utility Paradox: Why High-Reward Data Impairs Small Model Reasoning

ICML 2026poster

Knowledge distillation from powerful reasoning models underpins the development of Small Language Models (SLMs). A prevailing assumption in this paradigm is that training data with higher perceived quality, often defined by rigorous logic and superior reward scores, monotonically enhances downstream…

Cited by 0SourceScholar
2025

NaDRO: Leveraging Dual-Reward Strategies for LLMs Training on Noisy Data

NeurIPS 2025poster

Group Relative Policy Optimization (GRPO) fine-tuning has been empirically shown to significantly enhance the reasoning abilities of language models. However, it often relies on large-scale, high-quality labeled data, which is typically difficult to obtain. To address this challenge, we introduce th…

Cited by 0SourceScholar
2024

Position: Rethinking Post-Hoc Search-Based Neural Approaches for Solving Large-Scale Traveling Salesman Problems

ICML 2024oral

Recent advancements in solving large-scale traveling salesman problems (TSP) utilize the heatmap-guided Monte Carlo tree search (MCTS) paradigm, where machine learning (ML) models generate heatmaps, indicating the probability distribution of each edge being part of the optimal solution, to guide MCT…

2024

Whittle Index with Multiple Actions and State Constraint for Inventory Management

ICLR 2024poster

Whittle index is a heuristic tool that leads to good performance for the restless bandits problem. In this paper, we extend Whittle index to a new multi-agent reinforcement learning (MARL) setting with multiple discrete actions and a possibly changing constraint on the state space, resulting in WIMS…

Cited by 11SourcePDFScholar