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Deep Convolutional Neural Networks have made an incredible progress in many Computer Vision tasks. This progress, however, often relies on the availability of large amounts of the training data, required to prevent over-fitting, which in…

计算机视觉与模式识别 · 计算机科学 2023-02-28 Dominik Lewy , Jacek Mańdziuk

Data augmentation is a major component of many machine learning methods with state-of-the-art performance. Common augmentation strategies work by drawing random samples from a space of transformations. Unfortunately, such sampling…

机器学习 · 计算机科学 2020-11-06 Calvin Luo , Hossein Mobahi , Samy Bengio

Faithful generation in large language models (LLMs) is challenged by knowledge conflicts between parametric memory and external context. Existing contrastive decoding methods tuned specifically to handle conflict often lack adaptability and…

计算与语言 · 计算机科学 2025-08-28 Anant Khandelwal , Manish Gupta , Puneet Agrawal

Recently, contrastiveness-based augmentation surges a new climax in the computer vision domain, where some operations, including rotation, crop, and flip, combined with dedicated algorithms, dramatically increase the model generalization…

计算机视觉与模式识别 · 计算机科学 2022-05-23 Han Yue , Chunhui Zhang , Chuxu Zhang , Hongfu Liu

Electronic nose has been proven to be effective in alternative herbal medicine classification, but due to the nature of supervised learning, previous research heavily relies on the labelled training data, which are time-costly and…

机器学习 · 计算机科学 2021-07-20 Li Liu , Xianghao Zhan , Rumeng Wu , Xiaoqing Guan , Zhan Wang , Wei Zhang , Mert Pilanci , You Wang , Zhiyuan Luo , Guang Li

Nowadays, data augmentation through synthetic data has been widely used in the field of Grammatical Error Correction (GEC) to alleviate the problem of data scarcity. However, these synthetic data are mainly used in the pre-training phase…

计算与语言 · 计算机科学 2024-06-26 Yixuan Wang , Baoxin Wang , Yijun Liu , Qingfu Zhu , Dayong Wu , Wanxiang Che

Data augmentation plays a key role in modern machine learning pipelines. While numerous augmentation strategies have been studied in the context of computer vision and natural language processing, less is known for other data modalities.…

机器学习 · 统计学 2022-05-23 Elliott Gordon-Rodriguez , Thomas P. Quinn , John P. Cunningham

Image-Text Retrieval (ITR) is challenging in bridging visual and lingual modalities. Contrastive learning has been adopted by most prior arts. Except for limited amount of negative image-text pairs, the capability of constrastive learning…

计算机视觉与模式识别 · 计算机科学 2026-03-27 Haoran Wang , Dongliang He , Wenhao Wu , Boyang Xia , Min Yang , Fu Li , Yunlong Yu , Zhong Ji , Errui Ding , Jingdong Wang

Deep learning has revolutionized the performance of classification, but meanwhile demands sufficient labeled data for training. Given insufficient data, while many techniques have been developed to help combat overfitting, the challenge…

计算机视觉与模式识别 · 计算机科学 2018-09-05 Xiaofeng Zhang , Zhangyang Wang , Dong Liu , Qing Ling

Graph contrastive learning is usually performed by first conducting Graph Data Augmentation (GDA) and then employing a contrastive learning pipeline to train GNNs. As we know that GDA is an important issue for graph contrastive learning.…

机器学习 · 计算机科学 2024-01-09 Ziyan Zhang , Bo Jiang , Jin Tang , Bin Luo

Distributed optimization methods for large-scale machine learning suffer from a communication bottleneck. It is difficult to reduce this bottleneck while still efficiently and accurately aggregating partial work from different machines. In…

机器学习 · 计算机科学 2015-07-06 Chenxin Ma , Virginia Smith , Martin Jaggi , Michael I. Jordan , Peter Richtárik , Martin Takáč

3D captioning, which aims to describe the content of 3D scenes in natural language, remains highly challenging due to the inherent sparsity of point clouds and weak cross-modal alignment in existing methods. To address these challenges, we…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Ting Huang , Zeyu Zhang , Yemin Wang , Hao Tang

Large language models (LLMs) have achieved substantial advances in logical reasoning, yet they continue to lag behind human-level performance. In-context learning provides a viable solution that boosts the model's performance via prompting…

人工智能 · 计算机科学 2026-04-22 Jianzhi Yan , Le Liu , Buzhou Tang , Yang Xiang , Dongning Sun , Zhiming Li

Textual data augmentation (DA) is a prolific field of study where novel techniques to create artificial data are regularly proposed, and that has demonstrated great efficiency on small data settings, at least for text classification tasks.…

计算与语言 · 计算机科学 2024-09-18 Frédéric Piedboeuf , Philippe Langlais

Contrastive learning has emerged as a competent approach for unsupervised representation learning. However, the design of an optimal augmentation strategy, although crucial for contrastive learning, is less explored for time series…

机器学习 · 计算机科学 2025-05-30 Tian Tian , Chunyan Miao , Hangwei Qian

State-of-the-art natural language understanding classification models follow two-stages: pre-training a large language model on an auxiliary task, and then fine-tuning the model on a task-specific labeled dataset using cross-entropy loss.…

计算与语言 · 计算机科学 2021-04-06 Beliz Gunel , Jingfei Du , Alexis Conneau , Ves Stoyanov

This paper addresses the persistent challenge in Keyword Spotting (KWS), a fundamental component in speech technology, regarding the acquisition of substantial labeled data for training. Given the difficulty in obtaining large quantities of…

声音 · 计算机科学 2024-09-04 Weinan Dai , Yifeng Jiang , Yuanjing Liu , Jinkun Chen , Xin Sun , Jinglei Tao

Being widely used in learning unbiased visual question answering (VQA) models, Data Augmentation (DA) helps mitigate language biases by generating extra training samples beyond the original samples. While today's DA methods can generate…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Yuhang Zheng , Zhen Wang , Long Chen

Multimodal Large Language Models advance multimodal representation learning by acquiring transferable semantic embeddings, thereby substantially enhancing performance across a range of vision-language tasks, including cross-modal retrieval,…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Da Li , Yuxiao Luo , Keping Bi , Jiafeng Guo , Wei Yuan , Biao Yang , Yan Wang , Fan Yang , Tingting Gao , Guorui Zhou

One major challenge of translating code between programming languages is that parallel training data is often limited. To overcome this challenge, we present two data augmentation techniques, one that builds comparable corpora (i.e., code…

计算与语言 · 计算机科学 2024-10-07 Yiqing Xie , Atharva Naik , Daniel Fried , Carolyn Rose