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Tingyu Xia

5 accepted papers

2025

Rethinking Data Selection at Scale: Random Selection is Almost All You Need

EMNLP 2025

Supervised fine-tuning (SFT) is crucial for aligning Large Language Models (LLMs) with human instructions. The primary goal during SFT is to select a small yet representative subset of training data from the larger pool, such that fine-tuning with this subset achieves results comparable to or even e

2025

Self-play with Execution Feedback: Improving Instruction-following Capabilities of Large Language Models

ICLR 2025spotlight

One core capability of large language models~(LLMs) is to follow natural language instructions. However, the issue of automatically constructing high-quality training data to enhance the complex instruction-following abilities of LLMs without manual annotation remains unresolved. In this paper, we i…

2024

Language Models can Evaluate Themselves via Probability Discrepancy

ACL 2024findings

In this paper, we begin by illustrating that, when presented with a query, Large Language Models (LLMs) capable of providing accurate responses tend to exhibit a more uniform probability distribution compared to their less proficient counterparts. Building upon this observation, we introduce a novel…

2022

FastClass: A Time-Efficient Approach to Weakly-Supervised Text Classification

EMNLP 2022main

Weakly-supervised text classification aims to train a classifier using only class descriptions and unlabeled data. Recent research shows that keyword-driven methods can achieve state-of-the-art performance on various tasks. However, these methods not only rely on carefully-crafted class descriptions…