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Federated graph learning collaboratively learns a global graph neural network with distributed graphs, where the non-independent and identically distributed property is one of the major challenges. Most relative arts focus on traditional…

机器学习 · 计算机科学 2024-07-02 Wenke Huang , Guancheng Wan , Mang Ye , Bo Du

This work considers supervised contrastive learning for semantic segmentation. We apply contrastive learning to enhance the discriminative power of the multi-scale features extracted by semantic segmentation networks. Our key methodological…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Theodoros Pissas , Claudio S. Ravasio , Lyndon Da Cruz , Christos Bergeles

In this work, we investigate whether improving task clarity can enhance reasoning ability of large language models, focusing on theorem proving in Coq. We introduce a concept-level metric to evaluate task clarity and show that adding…

人工智能 · 计算机科学 2025-07-04 Yanzhen Lu , Hanbin Yang , Xiaodie Wang , Ge Zhang , Biao Li , Chenxu Fu , Chao Li , Yang Yuan , Andrew Chi-Chih Yao

Current multimodal LLMs encode images as static visual prefixes and rely on text-based reasoning, lacking goal-driven and adaptive visual access. Inspired by human visual perception-where attention is selectively and sequentially shifted…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Guangfu Guo , Xiaoqian Lu , Yue Feng , Mingming Sun

The emoticons are symbolic representations that generally accompany the textual content to visually enhance or summarize the true intention of a written message. Although widely utilized in the realm of social media, the core semantics of…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Ananya Pandey , Dinesh Kumar Vishwakarma

This paper proposes a structure-aware decoding method based on large language models to address the difficulty of traditional approaches in maintaining both semantic integrity and structural consistency in nested and overlapping entity…

计算与语言 · 计算机科学 2026-01-29 Zhimin Qiu , Di Wu , Feng Liu , Yuxiao Wang

The self-supervised ultrasound (US) video model pretraining can use a small amount of labeled data to achieve one of the most promising results on US diagnosis. However, it does not take full advantage of multi-level knowledge for learning…

计算机视觉与模式识别 · 计算机科学 2022-10-14 Chunhui Zhang , Yixiong Chen , Li Liu , Qiong Liu , Xi Zhou

The prevalence and perniciousness of fake news have been a critical issue on the Internet, which stimulates the development of automatic fake news detection in turn. In this paper, we focus on evidence-based fake news detection, where…

计算与语言 · 计算机科学 2022-10-12 Junfei Wu , Weizhi Xu , Qiang Liu , Shu Wu , Liang Wang

Compliance at web scale poses practical challenges: each request may require a regulatory assessment. Regulatory texts (e.g., the General Data Protection Regulation, GDPR) are cross-referential and normative, while runtime contexts are…

人工智能 · 计算机科学 2025-10-31 Jiseong Chung , Ronny Ko , Wonchul Yoo , Makoto Onizuka , Sungmok Kim , Tae-Wan Kim , Won-Yong Shin

Recently, graph neural networks (GNNs) have been widely used for document classification. However, most existing methods are based on static word co-occurrence graphs without sentence-level information, which poses three challenges:(1) word…

计算与语言 · 计算机科学 2022-03-22 Yinhua Piao , Sangseon Lee , Dohoon Lee , Sun Kim

Despite exciting progress in causal language models, the expressiveness of the representations is largely limited due to poor discrimination ability. To remedy this issue, we present ContraCLM, a novel contrastive learning framework at both…

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

Heterogeneous graph contrastive learning has received wide attention recently. Some existing methods use meta-paths, which are sequences of object types that capture semantic relationships between objects, to construct contrastive views.…

机器学习 · 计算机科学 2024-04-08 Jianxiang Yu , Qingqing Ge , Xiang Li , Aoying Zhou

Representation learning is a fundamental aspect of modern artificial intelligence, driving substantial improvements across diverse applications. While selfsupervised contrastive learning has led to significant advancements in fields like…

Pre-training methods with contrastive learning objectives have shown remarkable success in dialog understanding tasks. However, current contrastive learning solely considers the self-augmented dialog samples as positive samples and treats…

计算与语言 · 计算机科学 2022-09-15 Wanwei He , Yinpei Dai , Binyuan Hui , Min Yang , Zheng Cao , Jianbo Dong , Fei Huang , Luo Si , Yongbin Li

Graph clustering is essential in graph analysis for revealing structural patterns and node communities. Despite recent advances in self-supervised contrastive learning that have improved clustering via structural and attribute signals,…

机器学习 · 计算机科学 2026-05-28 Lei Zhang , Fubo Sun , Haipeng Yang , Zhong Guan , Likang Wu

Structure information is critical for understanding the semantics of text-rich images, such as documents, tables, and charts. Existing Multimodal Large Language Models (MLLMs) for Visual Document Understanding are equipped with text…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Anwen Hu , Haiyang Xu , Jiabo Ye , Ming Yan , Liang Zhang , Bo Zhang , Chen Li , Ji Zhang , Qin Jin , Fei Huang , Jingren Zhou

Knowledge graphs (KGs) often contain various errors. Previous works on detecting errors in KGs mainly rely on triplet embedding from graph structure. We conduct an empirical study and find that these works struggle to discriminate noise…

计算与语言 · 计算机科学 2024-01-17 Xiangyu Liu , Yang Liu , Wei Hu

Contrastive learning has been widely applied to graph representation learning, where the view generators play a vital role in generating effective contrastive samples. Most of the existing contrastive learning methods employ pre-defined…

机器学习 · 计算机科学 2022-01-04 Yihang Yin , Qingzhong Wang , Siyu Huang , Haoyi Xiong , Xiang Zhang

Learning semantically meaningful sentence embeddings is an open problem in natural language processing. In this work, we propose a sentence embedding learning approach that exploits both visual and textual information via a multimodal…

计算与语言 · 计算机科学 2022-04-26 Miaoran Zhang , Marius Mosbach , David Ifeoluwa Adelani , Michael A. Hedderich , Dietrich Klakow