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Contrastive learning has achieved state-of-the-art performance in various self-supervised learning tasks and even outperforms its supervised counterpart. Despite its empirical success, theoretical understanding of the superiority of…

机器学习 · 计算机科学 2023-12-21 Wenlong Ji , Zhun Deng , Ryumei Nakada , James Zou , Linjun Zhang

Contrastive learning (CL) has been successful as a powerful representation learning method. In this paper, we propose a contrastive learning framework for cross-domain sentiment classification. We aim to induce domain invariant optimal…

计算与语言 · 计算机科学 2020-12-08 Tian Li , Xiang Chen , Shanghang Zhang , Zhen Dong , Kurt Keutzer

We study cross-lingual stance detection, which aims to leverage labeled data in one language to identify the relative perspective (or stance) of a given document with respect to a claim in a different target language. In particular, we…

计算与语言 · 计算机科学 2019-10-08 Mitra Mohtarami , James Glass , Preslav Nakov

Self-supervised visual representation learning aims to learn useful representations without relying on human annotations. Joint embedding approach bases on maximizing the agreement between embedding vectors from different views of the same…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Li Jing , Pascal Vincent , Yann LeCun , Yuandong Tian

The classification of sleep stages plays a crucial role in understanding and diagnosing sleep pathophysiology. Sleep stage scoring relies heavily on visual inspection by an expert that is time consuming and subjective procedure. Recently,…

信号处理 · 电气工程与系统科学 2022-12-12 Aref Einizade , Samaneh Nasiri , Sepideh Hajipour Sardouie , Gari Clifford

Label-scarce, high-dimensional domains such as healthcare present a challenge for modern machine learning techniques. To overcome the difficulties posed by a lack of labeled data, we explore an "order-contrastive" method for self-supervised…

机器学习 · 计算机科学 2022-03-30 Monica Agrawal , Hunter Lang , Michael Offin , Lior Gazit , David Sontag

Self-supervised learning is an empirically successful approach to unsupervised learning based on creating artificial supervised learning problems. A popular self-supervised approach to representation learning is contrastive learning, which…

机器学习 · 计算机科学 2021-04-16 Christopher Tosh , Akshay Krishnamurthy , Daniel Hsu

Recently the deep learning has shown its advantage in representation learning and clustering for time series data. Despite the considerable progress, the existing deep time series clustering approaches mostly seek to train the deep neural…

机器学习 · 计算机科学 2023-01-02 Ying Zhong , Dong Huang , Chang-Dong Wang

While large vision-language models (LVLMs) have shown impressive capabilities in generating plausible responses correlated with input visual contents, they still suffer from hallucinations, where the generated text inaccurately reflects…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Yi-Lun Lee , Yi-Hsuan Tsai , Wei-Chen Chiu

Contrastive learning has been frequently investigated to learn effective representations for text clustering tasks. While existing contrastive learning-based text clustering methods only focus on modeling instance-wise semantic similarity…

计算与语言 · 计算机科学 2024-08-27 Qian Yong , Chen Chen , Xiabing Zhou

Deep learning-based recommender systems have achieved remarkable success in recent years. However, these methods usually heavily rely on labeled data (i.e., user-item interactions), suffering from problems such as data sparsity and…

信息检索 · 计算机科学 2023-10-12 Mengyuan Jing , Yanmin Zhu , Tianzi Zang , Ke Wang

How to select relevant key objects and reason about the complex relationships cross vision and linguistic domain are two key issues in many multi-modality applications such as visual question answering (VQA). In this work, we incorporate…

计算机视觉与模式识别 · 计算机科学 2023-11-14 Zongzhao Li , Xiangyu Zhu , Xi Zhang , Zhaoxiang Zhang , Zhen Lei

Making decent multi-lingual sentence representations is critical to achieve high performances in cross-lingual downstream tasks. In this work, we propose a novel method to align multi-lingual embeddings based on the similarity of sentences…

计算与语言 · 计算机科学 2024-05-29 Minsu Park , Seyeon Choi , Chanyeol Choi , Jun-Seong Kim , Jy-yong Sohn

Contrastive learning has emerged as a competitive pretraining method for object detection. Despite this progress, there has been minimal investigation into the robustness of contrastively pretrained detectors when faced with domain shifts.…

计算机视觉与模式识别 · 计算机科学 2022-12-12 Kyle Buettner , Adriana Kovashka

Recent self-supervised representation learning techniques have largely closed the gap between supervised and unsupervised learning on ImageNet classification. While the particulars of pretraining on ImageNet are now relatively well…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Elijah Cole , Xuan Yang , Kimberly Wilber , Oisin Mac Aodha , Serge Belongie

In the era of big data and Artificial Intelligence, an emerging paradigm is to utilize contrastive self-supervised learning to model large-scale heterogeneous data. Many existing foundation models benefit from the generalization capability…

机器学习 · 计算机科学 2024-04-02 Lecheng Zheng , Baoyu Jing , Zihao Li , Hanghang Tong , Jingrui He

In the past few years, we have witnessed remarkable breakthroughs in self-supervised representation learning. Despite the success and adoption of representations learned through this paradigm, much is yet to be understood about how…

计算机视觉与模式识别 · 计算机科学 2021-08-20 Klemen Kotar , Gabriel Ilharco , Ludwig Schmidt , Kiana Ehsani , Roozbeh Mottaghi

Recent contrastive methods show significant improvement in self-supervised learning in several domains. In particular, contrastive methods are most effective where data augmentation can be easily constructed e.g. in computer vision.…

机器学习 · 计算机科学 2021-12-09 Konstantinos Kallidromitis , Denis Gudovskiy , Kazuki Kozuka , Iku Ohama , Luca Rigazio

Recent methods for deep metric learning have been focusing on designing different contrastive loss functions between positive and negative pairs of samples so that the learned feature embedding is able to pull positive samples of the same…

计算机视觉与模式识别 · 计算机科学 2022-11-08 Shichao Kan , Zhiquan He , Yigang Cen , Yang Li , Vladimir Mladenovic , Zhihai He

Few-shot text classification has recently been promoted by the meta-learning paradigm which aims to identify target classes with knowledge transferred from source classes with sets of small tasks named episodes. Despite their success,…

计算与语言 · 计算机科学 2023-05-17 Junfan Chen , Richong Zhang , Yongyi Mao , Jie Xu