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New intent discovery is a crucial capability for task-oriented dialogue systems. Existing methods focus on transferring in-domain (IND) prior knowledge to out-of-domain (OOD) data through pre-training and clustering stages. They either…

计算与语言 · 计算机科学 2024-10-29 Yimin Deng , Yuxia Wu , Guoshuai Zhao , Li Zhu , Xueming Qian

Sentence-level relation extraction aims to identify the relation between two entities for a given sentence. The existing works mostly focus on obtaining a better entity representation and adopting a multi-label classifier for relation…

计算与语言 · 计算机科学 2023-04-12 Jiewen Zheng , Ze Chen

Visual-textual correlations in the attention maps derived from text-to-image diffusion models are proven beneficial to dense visual prediction tasks, e.g., semantic segmentation. However, a significant challenge arises due to the input…

计算机视觉与模式识别 · 计算机科学 2025-01-06 Jiayi Lin , Jiabo Huang , Jian Hu , Shaogang Gong

We introduce SemCSE, an unsupervised method for learning semantic embeddings of scientific texts. Building on recent advances in contrastive learning for text embeddings, our approach leverages LLM-generated summaries of scientific…

计算与语言 · 计算机科学 2025-07-18 Marc Brinner , Sina Zarriess

A variety of contextualised language models have been proposed in the NLP community, which are trained on diverse corpora to produce numerous Neural Language Models (NLMs). However, different NLMs have reported different levels of…

计算与语言 · 计算机科学 2022-04-19 Keigo Takahashi , Danushka Bollegala

Contrastive pre-training on distant supervision has shown remarkable effectiveness in improving supervised relation extraction tasks. However, the existing methods ignore the intrinsic noise of distant supervision during the pre-training…

计算与语言 · 计算机科学 2023-02-13 Zhen Wan , Fei Cheng , Qianying Liu , Zhuoyuan Mao , Haiyue Song , Sadao Kurohashi

Contrastive learning techniques have been widely used in the field of computer vision as a means of augmenting datasets. In this paper, we extend the use of these contrastive learning embeddings to sentiment analysis tasks and demonstrate…

计算与语言 · 计算机科学 2021-12-03 Ipsita Mohanty , Ankit Goyal , Alex Dotterweich

Contrastive-learning-based methods have dominated sentence representation learning. These methods regularize the representation space by pulling similar sentence representations closer and pushing away the dissimilar ones and have been…

计算与语言 · 计算机科学 2024-01-25 Xinghao Wang , Junliang He , Pengyu Wang , Yunhua Zhou , Tianxiang Sun , Xipeng Qiu

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

Inference, especially those derived from inductive processes, is a crucial component in our conversation to complement the information implicitly or explicitly conveyed by a speaker. While recent large language models show remarkable…

计算与语言 · 计算机科学 2023-11-14 Etsuko Ishii , Yan Xu , Bryan Wilie , Ziwei Ji , Holy Lovenia , Willy Chung , Pascale Fung

Recent vision-language foundation models, such as CLIP, have demonstrated superior capabilities in learning representations that can be transferable across diverse range of downstream tasks and domains. With the emergence of such powerful…

计算机视觉与模式识别 · 计算机科学 2025-03-14 Hunmin Yang , Jongoh Jeong , Kuk-Jin Yoon

Contrastive learning has shown great potential in unsupervised sentence embedding tasks, e.g., SimCSE. However, We find that these existing solutions are heavily affected by superficial features like the length of sentences or syntactic…

计算与语言 · 计算机科学 2022-03-14 Haochen Tan , Wei Shao , Han Wu , Ke Yang , Linqi Song

Stance detection classifies stance relations (namely, Favor, Against, or Neither) between comments and targets. Pretrained language models (PLMs) are widely used to mine the stance relation to improve the performance of stance detection…

机器学习 · 计算机科学 2024-05-21 Jiarui Zhang , Shaojuan Wu , Xiaowang Zhang , Zhiyong Feng

The global reach of social media has amplified the spread of hateful content, including implicit sexism, which is often overlooked by conventional detection methods. In this work, we introduce an Adaptive Supervised Contrastive lEarning…

计算与语言 · 计算机科学 2025-07-09 Mohammad Zia Ur Rehman , Aditya Shah , Nagendra Kumar

Composed image retrieval (CIR) is the task of retrieving specific images by using a query that involves both a reference image and a relative caption. Most existing CIR models adopt the late-fusion strategy to combine visual and language…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Yang Bai , Xinxing Xu , Yong Liu , Salman Khan , Fahad Khan , Wangmeng Zuo , Rick Siow Mong Goh , Chun-Mei Feng

The wayward quality of continuous prompts stresses the importance of their interpretability as unexpected and unpredictable behaviors appear following training, especially in the context of large language models automating people-sensitive…

计算与语言 · 计算机科学 2024-02-15 Pascal Passigan , Kidus Yohannes , Joshua Pereira

Learning scientific document representations can be substantially improved through contrastive learning objectives, where the challenge lies in creating positive and negative training samples that encode the desired similarity semantics.…

计算与语言 · 计算机科学 2022-10-20 Malte Ostendorff , Nils Rethmeier , Isabelle Augenstein , Bela Gipp , Georg Rehm

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

This paper presents a whitening-based contrastive learning method for sentence embedding learning (WhitenedCSE), which combines contrastive learning with a novel shuffled group whitening. Generally, contrastive learning pulls distortions of…

计算与语言 · 计算机科学 2023-06-09 Wenjie Zhuo , Yifan Sun , Xiaohan Wang , Linchao Zhu , Yi Yang

Contrastive learning is commonly used as a method of self-supervised learning with the "anchor" and "positive" being two random augmentations of a given input image, and the "negative" is the set of all other images. However, the…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Rishab Balasubramanian , Kunal Rathore