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Xingzhang Ren

5 accepted papers

2026

OPUS: Towards Efficient and Principled Data Selection in Large Language Model Pre-training in Every Iteration

ICML 2026oral

As high-quality public text approaches exhaustion, a phenomenon known as the Data Wall—LLM pre-training is shifting from more tokens to better tokens. However, existing methods either rely on heuristic static filters that ignore training dynamics, or use dynamic yet optimizer-agnostic criteria based…

Cited by 0SourceScholar
2026

Rethinking LLM Evaluation: Can We Evaluate LLMs with 200× Less Data?

ICLR 2026poster

As the demand for comprehensive evaluations of diverse model capabilities steadily increases, benchmark suites have correspondingly grown significantly in scale. Despite notable advances in redundancy reduction and subset-level performance prediction, a systematic framework that effectively integrat…

Cited by 0SourcecodeScholar
2023

Dynamic Voting for Efficient Reasoning in Large Language Models

EMNLP 2023long findings

Multi-path voting methods like Self-consistency have been used to mitigate reasoning errors in large language models caused by factual errors and illusion generation. However, these methods require excessive computing resources as they generate numerous reasoning paths for each problem. And our expe…

Cited by 0SourceScholar
2022

Frequency-Aware Contrastive Learning for Neural Machine Translation

AAAI 2022technical

Low-frequency word prediction remains a challenge in modern neural machine translation (NMT) systems. Recent adaptive training methods promote the output of infrequent words by emphasizing their weights in the overall training objectives. Despite the improved recall of low-frequency words, their pre…

2022

Unsupervised Preference-Aware Language Identification

ACL 2022findings

Recognizing the language of ambiguous texts has become a main challenge in language identification (LID). When using multilingual applications, users have their own language preferences, which can be regarded as external knowledge for LID. Nevertheless, current studies do not consider the inter-pers…