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Data augmentation is an essential technique in natural language processing (NLP) for enriching training datasets by generating diverse samples. This process is crucial for improving the robustness and generalization capabilities of NLP…

计算与语言 · 计算机科学 2025-10-16 Zaitian Wang , Jinghan Zhang , Xinhao Zhang , Kunpeng Liu , Pengfei Wang , Yuanchun Zhou

Deep neural networks are typically trained by uniformly sampling large datasets across epochs, despite evidence that not all samples contribute equally throughout learning. Recent work shows that progressively reducing the amount of…

机器学习 · 计算机科学 2026-04-15 Amar Gahir , Varshil Patel , Shreyank N Gowda

A fine-grained data recipe is crucial for pre-training large language models, as it can significantly enhance training efficiency and model performance. One important ingredient in the recipe is to select samples based on scores produced by…

计算与语言 · 计算机科学 2026-01-01 Ziqing Fan , Yuqiao Xian , Yan Sun , Li Shen

The rise of Large Language Models (LLMs) has accentuated the need for diverse, high-quality pre-training data. Synthetic data emerges as a viable solution to the challenges of data scarcity and inaccessibility. While previous literature has…

计算与语言 · 计算机科学 2024-10-24 Hao Chen , Abdul Waheed , Xiang Li , Yidong Wang , Jindong Wang , Bhiksha Raj , Marah I. Abdin

Careful curation of data sources can significantly improve the performance of LLM pre-training, but predominant approaches rely heavily on intuition or costly trial-and-error, making them difficult to generalize across different data…

机器学习 · 计算机科学 2025-03-28 Thomson Yen , Andrew Wei Tung Siah , Haozhe Chen , Tianyi Peng , Daniel Guetta , Hongseok Namkoong

In real-world NLP applications, Large Language Models (LLMs) offer promising solutions due to their extensive training on vast datasets. However, the large size and high computation demands of LLMs limit their practicality in many…

人工智能 · 计算机科学 2025-04-01 Juanhui Li , Sreyashi Nag , Hui Liu , Xianfeng Tang , Sheikh Sarwar , Limeng Cui , Hansu Gu , Suhang Wang , Qi He , Jiliang Tang

Domain adaptation of neural networks commonly relies on three training phases: pretraining, selected data training and then fine tuning. Data selection improves target domain generalization by training further on pretraining data identified…

计算与语言 · 计算机科学 2021-09-17 Dan Iter , David Grangier

Large language models (LLMs) rely on pretraining on massive and heterogeneous corpora, where training data composition has a decisive impact on training efficiency and downstream generalization under realistic compute and data budget…

计算与语言 · 计算机科学 2026-04-21 Zhuo Chen , Yuxuan Miao , Supryadi , Deyi Xiong

Long Short-Term Memory (LSTM) neural network models have become the cornerstone for sequential data modeling in numerous applications, ranging from natural language processing to time series forecasting. Despite their success, the problem…

机器学习 · 统计学 2026-05-26 Fahad Mostafa

In differentially private (DP) tabular data synthesis, the consensus is that statistical models are better than neural network (NN)-based methods. However, we argue that this conclusion is incomplete and overlooks the challenge of densely…

机器学习 · 计算机科学 2025-11-19 Kai Chen , Chen Gong , Tianhao Wang

Data-efficient learning aims to eliminate redundancy in large training datasets by training models on smaller subsets of the most informative examples. While data selection has been extensively explored for vision models and large language…

计算机视觉与模式识别 · 计算机科学 2025-10-03 Nilay Naharas , Dang Nguyen , Nesihan Bulut , Mohammadhossein Bateni , Vahab Mirrokni , Baharan Mirzasoleiman

LLM alignment ensures that large language models behave safely and effectively by aligning their outputs with human values, goals, and intentions. Aligning LLMs employ huge amounts of data, computation, and time. Moreover, curating data…

机器学习 · 计算机科学 2025-02-19 Amrit Khera , Rajat Ghosh , Debojyoti Dutta

Fine-tuning large language models (LLMs) using diverse datasets is crucial for enhancing their overall performance across various domains. In practical scenarios, existing methods based on modeling the mixture proportions of data…

计算与语言 · 计算机科学 2025-10-31 Zhenqing Ling , Daoyuan Chen , Liuyi Yao , Qianli Shen , Yaliang Li , Ying Shen

Large language models (LLMs) alignment aims to ensure that the behavior of LLMs meets human preferences. While collecting data from multiple fine-grained, aspect-specific preferences becomes more and more feasible, existing alignment…

机器学习 · 计算机科学 2026-03-03 Jia Zhang , Yao Liu , Chen-Xi Zhang , Yi Liu , Yi-Xuan Jin , Lan-Zhe Guo , Yu-Feng Li

Distributed dataflow systems like Apache Flink and Apache Spark simplify processing large amounts of data on clusters in a data-parallel manner. However, choosing suitable cluster resources for distributed dataflow jobs in both type and…

分布式、并行与集群计算 · 计算机科学 2022-03-14 Jonathan Will , Onur Arslan , Jonathan Bader , Dominik Scheinert , Lauritz Thamsen

The reasoning capabilities of Large Language Models (LLMs) play a critical role in many downstream tasks, yet depend strongly on the quality of training data. Despite various proposed data construction methods, their practical utility in…

计算与语言 · 计算机科学 2025-10-09 Yike Zhao , Simin Guo , Ziqing Yang , Shifan Han , Dahua Lin , Fei Tan

In the last decade, motivated by the success of Deep Learning, the scientific community proposed several approaches to make the learning procedure of Neural Networks more effective. When focussing on the way in which the training data are…

机器学习 · 计算机科学 2021-06-22 Simone Marullo , Matteo Tiezzi , Marco Gori , Stefano Melacci

In recent years, pretrained neural language models (PNLMs) have taken the field of natural language processing by storm, achieving new benchmarks and state-of-the-art performances. These models often rely heavily on annotated data, which…

计算与语言 · 计算机科学 2023-02-06 Hoang Van

Large language models (LLMs) have demonstrated remarkable performance across a wide range of tasks and domains, with data playing a central role in enabling these advances. Despite this success, the preparation and effective utilization of…

计算与语言 · 计算机科学 2026-03-17 Hao Liang , Zhengyang Zhao , Zhaoyang Han , Meiyi Qiang , Xiaochen Ma , Bohan Zeng , Qifeng Cai , Zhiyu Li , Linpeng Tang , Weinan E , Wentao Zhang

Large language models (LLMs) deliver impressive results but face challenges from increasing model sizes and computational costs. Structured pruning reduces model size and speeds up inference but often causes uneven degradation across…

计算与语言 · 计算机科学 2025-05-28 Hexuan Deng , Wenxiang Jiao , Xuebo Liu , Jing Li , Min Zhang , Zhaopeng Tu