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In various natural language processing (NLP) tasks, fine-tuning Pre-trained Language Models (PLMs) often leads to the issue of spurious correlations, which negatively impacts performance, particularly when dealing with out-of-distribution…

计算与语言 · 计算机科学 2025-04-17 Suyoung Bae , Hyojun Kim , YunSeok Choi , Jee-Hyong Lee

Multi-party dialogues, common in collaborative scenarios like brainstorming sessions and negotiations, pose significant challenges due to their complexity and diverse speaker roles. Current methods often use graph neural networks to model…

计算与语言 · 计算机科学 2025-05-20 Zhongtian Hu , Qi He , Ronghan Li , Meng Zhao , Lifang Wang

With large-scale well-labeled datasets, deep learning has shown significant success in medical image segmentation. However, it is challenging to acquire abundant annotations in clinical practice due to extensive expertise requirements and…

图像与视频处理 · 电气工程与系统科学 2022-10-20 Ziyuan Zhao , Jinxuan Hu , Zeng Zeng , Xulei Yang , Peisheng Qian , Bharadwaj Veeravalli , Cuntai Guan

High-quality phrase representations are essential to finding topics and related terms in documents (a.k.a. topic mining). Existing phrase representation learning methods either simply combine unigram representations in a context-free manner…

计算与语言 · 计算机科学 2022-03-01 Jiacheng Li , Jingbo Shang , Julian McAuley

Selecting an appropriate response from many candidates given the utterances in a multi-turn dialogue is the key problem for a retrieval-based dialogue system. Existing work formalizes the task as matching between the utterances and a…

计算与语言 · 计算机科学 2022-03-03 Wentao Zhang , Shuang Xu , Haoran Huang

Automated radiology report generation offers an effective solution to alleviate radiologists' workload. However, most existing methods focus primarily on single or fixed-view images to model current disease conditions, which limits…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Kang Liu , Zhuoqi Ma , Xiaolu Kang , Yunan Li , Kun Xie , Zhicheng Jiao , Qiguang Miao

In this work, we develop new self-learning techniques with an attention-based sequence-to-sequence (seq2seq) model for automatic speech recognition (ASR). For untranscribed speech data, the hypothesis from an ASR system must be used as a…

计算与语言 · 计算机科学 2021-12-23 Kenichi Kumatani , Dimitrios Dimitriadis , Yashesh Gaur , Robert Gmyr , Sefik Emre Eskimez , Jinyu Li , Michael Zeng

Knowledge tracing (KT) is a popular approach for modeling students' learning progress over time, which can enable more personalized and adaptive learning. However, existing KT approaches face two major limitations: (1) they rely heavily on…

机器学习 · 计算机科学 2025-03-14 Yilmazcan Ozyurt , Stefan Feuerriegel , Mrinmaya Sachan

With the rapid advancements in wireless communication technology, automatic modulation recognition (AMR) plays a critical role in ensuring communication security and reliability. However, numerous challenges, including higher performance…

机器学习 · 计算机科学 2025-02-27 Dongwei Xu , Yutao Zhu , Yao Lu , Youpeng Feng , Yun Lin , Qi Xuan

Recently, a method [7] was proposed to generate contrastive explanations for differentiable models such as deep neural networks, where one has complete access to the model. In this work, we propose a method, Model Agnostic Contrastive…

Capturing emotions within a conversation plays an essential role in modern dialogue systems. However, the weak correlation between emotions and semantics brings many challenges to emotion recognition in conversation (ERC). Even semantically…

人工智能 · 计算机科学 2022-10-20 Xiaohui Song , Longtao Huang , Hui Xue , Songlin Hu

Weakly supervised semantic segmentation (WSSS) has gained significant popularity since it relies only on weak labels such as image level annotations rather than pixel level annotations required by supervised semantic segmentation (SSS)…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Kunhao Yuan , Gerald Schaefer , Yu-Kun Lai , Yifan Wang , Xiyao Liu , Lin Guan , Hui Fang

This paper presents miCSE, a mutual information-based contrastive learning framework that significantly advances the state-of-the-art in few-shot sentence embedding. The proposed approach imposes alignment between the attention pattern of…

计算与语言 · 计算机科学 2023-05-24 Tassilo Klein , Moin Nabi

Graph clustering is a crucial task in network analysis with widespread applications, focusing on partitioning nodes into distinct groups with stronger intra-group connections than inter-group ones. Recently, contrastive learning has…

机器学习 · 计算机科学 2024-08-20 Xunlian Wu , Jingqi Hu , Anqi Zhang , Yining Quan , Qiguang Miao , Peng Gang Sun

General Multimodal Large Language Models (MLLMs) often underperform in capturing domain-specific nuances in medical diagnosis, trailing behind fully supervised baselines. Although fine-tuning provides a remedy, the high costs of expert…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Wenkai Zhao , Zipei Wang , Mengjie Fang , Di Dong , Jie Tian , Lingwei Zhang

In contrastive self-supervised learning, the common way to learn discriminative representation is to pull different augmented "views" of the same image closer while pushing all other images further apart, which has been proven to be…

计算机视觉与模式识别 · 计算机科学 2022-12-14 Kaiyou Song , Shan Zhang , Zihao An , Zimeng Luo , Tong Wang , Jin Xie

This paper presents SimCLR: a simple framework for contrastive learning of visual representations. We simplify recently proposed contrastive self-supervised learning algorithms without requiring specialized architectures or a memory bank.…

机器学习 · 计算机科学 2020-07-02 Ting Chen , Simon Kornblith , Mohammad Norouzi , Geoffrey Hinton

Contrastive representation learning is crucial in time series analysis as it alleviates the issue of data noise and incompleteness as well as sparsity of supervision signal. However, existing constrastive learning frameworks usually focus…

机器学习 · 计算机科学 2024-06-26 Haozhi Gao , Qianqian Ren , Jinbao Li

Text classification is a crucial and fundamental task in web content mining. Compared with the previous learning paradigm of pre-training and fine-tuning by cross entropy loss, the recently proposed supervised contrastive learning approach…

计算与语言 · 计算机科学 2026-01-26 Mengyu Li , Yonghao Liu , Fausto Giunchiglia , Ximing Li , Xiaoyue Feng , Renchu Guan

For medical image segmentation, contrastive learning is the dominant practice to improve the quality of visual representations by contrasting semantically similar and dissimilar pairs of samples. This is enabled by the observation that…

计算机视觉与模式识别 · 计算机科学 2023-10-25 Chenyu You , Weicheng Dai , Yifei Min , Fenglin Liu , David A. Clifton , S Kevin Zhou , Lawrence Hamilton Staib , James S Duncan
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