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相关论文: A Simple Graph Contrastive Learning Framework for …

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Graph-based models and contrastive learning have emerged as prominent methods in Collaborative Filtering (CF). While many existing models in CF incorporate these methods in their design, there seems to be a limited depth of analysis…

信息检索 · 计算机科学 2024-06-24 Yihong Wu , Le Zhang , Fengran Mo , Tianyu Zhu , Weizhi Ma , Jian-Yun Nie

Contrastive learning has achieved remarkable success on various high-level tasks, but there are fewer contrastive learning-based methods proposed for low-level tasks. It is challenging to adopt vanilla contrastive learning technologies…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Gang Wu , Junjun Jiang , Xianming Liu

As an exemplary self-supervised approach for representation learning, time-series contrastive learning has exhibited remarkable advancements in contemporary research. While recent contrastive learning strategies have focused on how to…

机器学习 · 计算机科学 2024-08-27 Xiyuan Jin , Jing Wang , Lei Liu , Youfang Lin

We study self-supervised learning on graphs using contrastive methods. A general scheme of prior methods is to optimize two-view representations of input graphs. In many studies, a single graph-level representation is computed as one of the…

机器学习 · 计算机科学 2021-07-22 Xinyi Xu , Cheng Deng , Yaochen Xie , Shuiwang Ji

In this paper, we explore how to utilize pre-trained language model to perform few-shot text classification where only a few annotated examples are given for each class. Since using traditional cross-entropy loss to fine-tune language model…

计算与语言 · 计算机科学 2022-10-03 Liwen Sun , Jiawei Han

We propose a framework for sequence-to-sequence contrastive learning (SeqCLR) of visual representations, which we apply to text recognition. To account for the sequence-to-sequence structure, each feature map is divided into different…

计算机视觉与模式识别 · 计算机科学 2020-12-22 Aviad Aberdam , Ron Litman , Shahar Tsiper , Oron Anschel , Ron Slossberg , Shai Mazor , R. Manmatha , Pietro Perona

Contrastive learning has been successfully used for retrieval of semantically aligned sentences, but it often requires large batch sizes or careful engineering to work well. In this paper, we instead propose a generative model for learning…

计算与语言 · 计算机科学 2023-06-06 John Wieting , Jonathan H. Clark , William W. Cohen , Graham Neubig , Taylor Berg-Kirkpatrick

Scene text recognition (STR) is a challenging task that requires large-scale annotated data for training. However, collecting and labeling real text images is expensive and time-consuming, which limits the availability of real data.…

计算机视觉与模式识别 · 计算机科学 2024-02-27 Mingkun Yang , Biao Yang , Minghui Liao , Yingying Zhu , Xiang Bai

We present a contrasting learning approach with data augmentation techniques to learn document representations in an unsupervised manner. Inspired by recent contrastive self-supervised learning algorithms used for image and NLP pretraining,…

To explore underlying complementary information from multiple views, in this paper, we propose a novel Latent Multi-view Semi-Supervised Classification (LMSSC) method. Unlike most existing multi-view semi-supervised classification methods…

机器学习 · 计算机科学 2019-09-10 Xiaofan Bo , Zhao Kang , Zhitong Zhao , Yuanzhang Su , Wenyu Chen

Vision-language models (VLMs) mainly rely on contrastive training to learn general-purpose representations of images and captions. We focus on the situation when one image is associated with several captions, each caption containing both…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Maurits Bleeker , Mariya Hendriksen , Andrew Yates , Maarten de Rijke

Graph contrastive learning (GCL) has recently emerged as a promising approach for graph representation learning. Some existing methods adopt the 1-vs-K scheme to construct one positive and K negative samples for each graph, but it is…

机器学习 · 计算机科学 2023-09-06 Minjie Chen , Yao Cheng , Ye Wang , Xiang Li , Ming Gao

Heterogeneous graph neural network (HGNN) is a very popular technique for the modeling and analysis of heterogeneous graphs. Most existing HGNN-based approaches are supervised or semi-supervised learning methods requiring graphs to be…

机器学习 · 计算机科学 2023-11-17 Cuiying Huo , Dongxiao He , Yawen Li , Di Jin , Jianwu Dang , Weixiong Zhang , Witold Pedrycz , Lingfei Wu

Most multi-view clustering methods are limited by shallow models without sound nonlinear information perception capability, or fail to effectively exploit complementary information hidden in different views. To tackle these issues, we…

机器学习 · 计算机科学 2022-10-14 Fu Lele , Zhang Lei , Yang Jinghua , Chen Chuan , Zhang Chuanfu , Zheng Zibin

Contrastively trained vision-language models have achieved remarkable progress in vision and language representation learning, leading to state-of-the-art models for various downstream multimodal tasks. However, recent research has…

计算与语言 · 计算机科学 2023-10-26 Harman Singh , Pengchuan Zhang , Qifan Wang , Mengjiao Wang , Wenhan Xiong , Jingfei Du , Yu Chen

In recent years, methods that combine contrastive learning with graph neural networks have emerged to address the challenges of recommendation systems, demonstrating powerful performance and playing a significant role in this domain.…

信息检索 · 计算机科学 2025-09-08 Hao Chen , Wenming Ma , Zihao Chu , Mingqi Li

Contrastive learning has been extensively studied in sentence embedding learning, which assumes that the embeddings of different views of the same sentence are closer. The constraint brought by this assumption is weak, and a good sentence…

计算与语言 · 计算机科学 2022-10-17 Xing Wu , Chaochen Gao , Zijia Lin , Jizhong Han , Zhongyuan Wang , Songlin Hu

In-Batch contrastive learning is a state-of-the-art self-supervised method that brings semantically-similar instances close while pushing dissimilar instances apart within a mini-batch. Its key to success is the negative sharing strategy,…

机器学习 · 计算机科学 2023-06-07 Zhen Yang , Tinglin Huang , Ming Ding , Yuxiao Dong , Rex Ying , Yukuo Cen , Yangliao Geng , Jie Tang

Node classification is an essential problem in graph learning. However, many models typically obtain unsatisfactory performance when applied to few-shot scenarios. Some studies have attempted to combine meta-learning with graph neural…

机器学习 · 计算机科学 2024-07-23 Yonghao Liu , Mengyu Li , Ximing Li , Lan Huang , Fausto Giunchiglia , Yanchun Liang , Xiaoyue Feng , Renchu Guan

Graph classification has gained significant attention due to its applications in chemistry, social networks, and bioinformatics. While Graph Neural Networks (GNNs) effectively capture local structural patterns, they often overlook global…

机器学习 · 计算机科学 2025-12-03 Ahmet Sami Korkmaz , Selim Coskunuzer , Md Joshem Uddin