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Related papers: MATES: Model-Aware Data Selection for Efficient Pr…

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In this paper, we introduce Group-MATES, an efficient group-level data selection approach to optimize the speed-quality frontier of language model pretraining. Specifically, Group-MATES parameterizes costly group-level selection with a…

Computation and Language · Computer Science 2025-06-23 Zichun Yu , Fei Peng , Jie Lei , Arnold Overwijk , Wen-tau Yih , Chenyan Xiong

High-quality data plays a critical role in the pretraining and fine-tuning of large language models (LLMs), even determining their performance ceiling to some degree. Consequently, numerous data selection methods have been proposed to…

Computation and Language · Computer Science 2025-07-08 Jiazheng Li , Lu Yu , Qing Cui , Zhiqiang Zhang , Jun Zhou , Yanfang Ye , Chuxu Zhang

Efficient data selection is crucial to accelerate the pretraining of language model (LMs). While various methods have been proposed to enhance data efficiency, limited research has addressed the inherent conflicts between these approaches…

Computation and Language · Computer Science 2025-06-10 Tianyi Bai , Ling Yang , Zhen Hao Wong , Fupeng Sun , Jiahui Peng , Xinlin Zhuang , Chi Zhang , Lijun Wu , Jiantao Qiu , Wentao Zhang , Binhang Yuan , Conghui He

As LLMs continue to scale, improving training efficiency increasingly depends on using data more effectively. Data selection addresses this problem by allocating a limited training budget to samples that best promote a target behavior.…

Machine Learning · Computer Science 2026-05-21 Qihao Lin , Guanxu Chen , Dongrui Liu , Jing Shao

Instruction tuning has unlocked powerful capabilities in large language models (LLMs), effectively using combined datasets to develop generalpurpose chatbots. However, real-world applications often require a specialized suite of skills…

Computation and Language · Computer Science 2024-06-14 Mengzhou Xia , Sadhika Malladi , Suchin Gururangan , Sanjeev Arora , Danqi Chen

Language model pretraining involves training on extensive corpora, where data quality plays a pivotal role. In this work, we aim to directly estimate the contribution of data during pretraining and select pretraining data in an efficient…

Computation and Language · Computer Science 2025-08-05 Kashun Shum , Yuzhen Huang , Hongjian Zou , Qi Ding , Yixuan Liao , Xiaoxin Chen , Qian Liu , Junxian He

Every data selection method inherently has a target. In practice, these targets often emerge implicitly through benchmark-driven iteration: researchers develop selection strategies, train models, measure benchmark performance, then refine…

Selecting appropriate training data is crucial for effective instruction fine-tuning of large language models (LLMs), which aims to (1) elicit strong capabilities, and (2) achieve balanced performance across a diverse range of tasks.…

Computation and Language · Computer Science 2025-01-22 Qirun Dai , Dylan Zhang , Jiaqi W. Ma , Hao Peng

A critical aspect of analyzing and improving modern machine learning systems lies in understanding how individual training examples influence a model's predictive behavior. Estimating this influence enables critical applications, including…

Machine Learning · Computer Science 2025-10-15 Narine Kokhlikyan , Kamalika Chaudhuri , Saeed Mahloujifar

Effective data selection is essential for pretraining large language models (LLMs), enhancing efficiency and improving generalization to downstream tasks. However, existing approaches often require leveraging external pretrained models,…

Machine Learning · Computer Science 2026-02-04 Jie Hao , Rui Yu , Wei Zhang , Huixia Wang , Jie Xu , Mingrui Liu

Data selection is of great significance in pre-training large language models, given the variation in quality within the large-scale available training corpora. To achieve this, researchers are currently investigating the use of data…

Artificial Intelligence · Computer Science 2024-10-08 Chi Zhang , Huaping Zhong , Kuan Zhang , Chengliang Chai , Rui Wang , Xinlin Zhuang , Tianyi Bai , Jiantao Qiu , Lei Cao , Ju Fan , Ye Yuan , Guoren Wang , Conghui He

Model selection requires repeatedly evaluating models on a given dataset and measuring their relative performances. In modern applications of machine learning, the models being considered are increasingly more expensive to evaluate and the…

Machine Learning · Computer Science 2020-10-21 Anant Raj , Cameron Musco , Lester Mackey , Nicolo Fusi

Large-scale multimodal pre-trained models like CLIP rely heavily on high-quality training data, yet raw web-crawled datasets are often noisy, misaligned, and redundant, leading to inefficient training and suboptimal generalization. Existing…

Machine Learning · Computer Science 2026-02-06 Guanjie Cheng , Boyi Li , Lingyu Sun , Mengying Zhu , Yangyang Wu , Xinkui Zhao , Shuiguang Deng

Recent advancements in code large language models (Code-LLMs) have demonstrated remarkable capabilities in resolving programming related tasks. Meanwhile, researchers have recognized that the quality of pre-training data is crucial for…

Software Engineering · Computer Science 2026-04-10 Chengli Xing , Zhengran Zeng , Gexiang Fang , Rui Xie , Wei Ye , Shikun Zhang

When selecting data for training large-scale models, standard practice is to filter for examples that match human notions of data quality. Such filtering yields qualitatively clean datapoints that intuitively should improve model behavior.…

Machine Learning · Computer Science 2024-01-24 Logan Engstrom , Axel Feldmann , Aleksander Madry

Over recent years, an increasing amount of compute and data has been poured into training large language models (LLMs), usually by doing one-pass learning on as many tokens as possible randomly selected from large-scale web corpora. While…

Computation and Language · Computer Science 2023-08-24 Kushal Tirumala , Daniel Simig , Armen Aghajanyan , Ari S. Morcos

Instruction-tuning language models has become a crucial step in aligning them for general use. Typically, this process involves extensive training on large datasets, incurring high training costs. In this paper, we introduce a novel…

Computation and Language · Computer Science 2024-02-19 Dheeraj Mekala , Alex Nguyen , Jingbo Shang

The data used to pretrain large language models has a decisive impact on a model's downstream performance, which has led to a large body of work on data selection methods that aim to automatically determine the most suitable data to use for…

Computation and Language · Computer Science 2023-12-12 Alon Albalak , Liangming Pan , Colin Raffel , William Yang Wang

As high-quality public text approaches exhaustion, a phenomenon known as the Data Wall, pre-training is shifting from more tokens to better tokens. However, existing methods either rely on heuristic static filters that ignore training…

Computation and Language · Computer Science 2026-02-10 Shaobo Wang , Xuan Ouyang , Tianyi Xu , Yuzheng Hu , Jialin Liu , Guo Chen , Tianyu Zhang , Junhao Zheng , Kexin Yang , Xingzhang Ren , Dayiheng Liu , Linfeng Zhang

Recent studies on domain-specific BERT models show that effectiveness on downstream tasks can be improved when models are pretrained on in-domain data. Often, the pretraining data used in these models are selected based on their subject…

Computation and Language · Computer Science 2020-10-06 Xiang Dai , Sarvnaz Karimi , Ben Hachey , Cecile Paris
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