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The scaling of Large Multimodal Models (LMMs) is constrained by the quality-quantity trade-off inherent in synthetic data. Previous approaches, such as LLM-as-a-Judge, have proven their effectiveness in addressing this but suffer from…

Artificial Intelligence · Computer Science 2026-05-11 Jinhao Jing , Qiannian Zhao , Chao Huang , Zhan Su

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

Current AI/ML methods for data-driven engineering use models that are mostly trained offline. Such models can be expensive to build in terms of communication and computing cost, and they rely on data that is collected over extended periods…

Machine Learning · Computer Science 2021-12-16 Xiaoxuan Wang , Rolf Stadler

Pre-trained models exhibit strong generalization to various downstream tasks. However, given the numerous models available in the model hub, identifying the most suitable one by individually fine-tuning is time-consuming. In this paper, we…

Machine Learning · Computer Science 2026-03-10 Tengxue Zhang , Biao Ouyang , Yang Shu , Xinyang Chen , Chenjuan Guo , Bin Yang

Modern language models (LMs) increasingly require two critical resources: computational resources and data resources. Data selection techniques can effectively reduce the amount of training data required for fine-tuning LMs. However, their…

Computation and Language · Computer Science 2026-02-20 Hongming Li , Yang Liu , Chao Huang

Large Language Models (LLMs) have revolutionized various domains but encounter substantial challenges in tackling optimization modeling tasks for Operations Research (OR), particularly when dealing with complex problem. In this work, we…

Computation and Language · Computer Science 2025-06-24 Yang Wu , Yifan Zhang , Yurong Wu , Yuran Wang , Junkai Zhang , Jian Cheng

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

Instruction data selection aims to identify a high-quality subset from the training set that matches or exceeds the performance of the full dataset on target tasks. Existing methods focus on the instruction-to-response mapping, but neglect…

Machine Learning · Computer Science 2025-05-20 Wenya Guo , Zhengkun Zhang , Xumeng Liu , Ying Zhang , Ziyu Lu , Haoze Zhu , Xubo Liu , Ruxue Yan

We introduce Predictive Batch Scheduling (PBS), a novel training optimization technique that accelerates language model convergence by dynamically prioritizing high-loss samples during batch construction. Unlike curriculum learning…

Artificial Intelligence · Computer Science 2026-02-20 Sumedh Rasal

Modern large language model training is no longer limited by data availability, but by the inability of existing preprocessing pipelines to simultaneously achieve massive scale and high data quality. Current approaches are forced to…

Computation and Language · Computer Science 2026-03-17 Gowtham , Sai Rupesh , Sanjay Kumar , Saravanan , Venkata Chaithanya

Supervised fine-tuning (SFT) is a commonly used technique to adapt large language models (LLMs) to downstream tasks. In practice, SFT on a full dataset is computationally expensive and sometimes suffers from overfitting or bias…

Machine Learning · Computer Science 2026-02-03 Heming Zou , Yixiu Mao , Yun Qu , Qi Wang , Xiangyang Ji

This work focuses on leveraging and selecting from vast, unlabeled, open data to pre-fine-tune a pre-trained language model. The goal is to minimize the need for costly domain-specific data for subsequent fine-tuning while achieving desired…

Machine Learning · Computer Science 2024-05-07 Feiyang Kang , Hoang Anh Just , Yifan Sun , Himanshu Jahagirdar , Yuanzhi Zhang , Rongxing Du , Anit Kumar Sahu , Ruoxi Jia

This paper introduces a simple and scalable approach to improve the data efficiency of large language model (LLM) training by augmenting existing text data with thinking trajectories. The compute for pre-training LLMs has been growing at an…

Computation and Language · Computer Science 2025-10-20 Liang Wang , Nan Yang , Shaohan Huang , Li Dong , Furu Wei

This work investigates the selection of high-quality pre-training data from massive corpora to enhance LMs' capabilities for downstream usage. We formulate data selection as a generalized Optimal Control problem, which can be solved…

Computation and Language · Computer Science 2025-03-20 Yuxian Gu , Li Dong , Hongning Wang , Yaru Hao , Qingxiu Dong , Furu Wei , Minlie Huang

Fine-tuning large language models (LLMs) for specialized domains often necessitates a trade-off between acquiring domain expertise and retaining general reasoning capabilities, a phenomenon known as catastrophic forgetting. Existing…

Machine Learning · Computer Science 2026-02-09 Xiyang Zhang , Yuanhe Tian , Hongzhi Wang , Yan Song

Omni-modal large language models (om-LLMs) achieve unified audio-visual understanding by encoding video and audio into temporally aligned token sequences interleaved at the window level. However, processing these dense non-textual tokens…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Zijie Xin , Jie Yang , Ruixiang Zhao , Tianyi Wang , Fengyun Rao , Jing Lyu , Xirong Li

Long-context inference enhances the reasoning capability of Large Language Models (LLMs), but incurs significant computational overhead. Token-oriented methods, such as pruning and skipping, have shown great promise in reducing inference…

Computation and Language · Computer Science 2026-02-03 Zimeng Wu , Donghao Wang , Chaozhe Jin , Jiaxin Chen , Yunhong Wang

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

Training large language models (LLMs) is constrained by memory requirements, with activations accounting for a substantial fraction of the total footprint. Existing approaches reduce memory using low-rank weight parameterizations or…

Machine Learning · Computer Science 2026-04-13 Sakshi Choudhary , Utkarsh Saxena , Kaushik Roy

Huge neural network models have shown unprecedented performance in real-world applications. However, due to memory constraints, model parallelism must be utilized to host large models that would otherwise not fit into the memory of a single…

Machine Learning · Computer Science 2021-04-13 Qifan Xu , Shenggui Li , Chaoyu Gong , Yang You