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Semantic role labeling (SRL) is the task of identifying the predicate-argument structure of a sentence. It is typically regarded as an important step in the standard NLP pipeline. As the semantic representations are closely related to…

计算与语言 · 计算机科学 2017-08-01 Diego Marcheggiani , Ivan Titov

Many recent successes in sentence representation learning have been achieved by simply fine-tuning on the Natural Language Inference (NLI) datasets with triplet loss or siamese loss. Nevertheless, they share a common weakness: sentences in…

计算与语言 · 计算机科学 2022-02-01 Dejiao Zhang , Shang-Wen Li , Wei Xiao , Henghui Zhu , Ramesh Nallapati , Andrew O. Arnold , Bing Xiang

Contextual word representation models have shown massive improvements on a multitude of NLP tasks, yet their word sense disambiguation capabilities remain poorly explained. To address this gap, we assess whether contextual word…

计算与语言 · 计算机科学 2021-04-23 Geetanjali Bihani , Julia Taylor Rayz

Contrastive learning produces coherent semantic feature embeddings by encouraging positive samples to cluster closely while separating negative samples. However, existing contrastive learning methods lack principled guarantees on coverage…

机器学习 · 计算机科学 2026-03-30 Yahya Alkhatib , Wee Peng Tay

Sign Language Translation (SLT) is a promising technology to bridge the communication gap between the deaf and the hearing people. Recently, researchers have adopted Neural Machine Translation (NMT) methods, which usually require…

计算与语言 · 计算机科学 2023-03-22 Biao Fu , Peigen Ye , Liang Zhang , Pei Yu , Cong Hu , Yidong Chen , Xiaodong Shi

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

We investigate the role of various demonstration components in the in-context learning (ICL) performance of large language models (LLMs). Specifically, we explore the impacts of ground-truth labels, input distribution, and complementary…

计算与语言 · 计算机科学 2024-04-29 Fuxiao Liu , Paiheng Xu , Zongxia Li , Yue Feng , Hyemi Song

Recent advances in image-level self-supervised learning (SSL) have made significant progress, yet learning dense representations for patches remains challenging. Mainstream methods encounter an over-dispersion phenomenon that patches from…

计算机视觉与模式识别 · 计算机科学 2025-09-12 Peisong Wen , Qianqian Xu , Siran Dai , Runmin Cong , Qingming Huang

Despite deep recurrent neural networks (RNNs) demonstrate strong performance in text classification, training RNN models are often expensive and requires an extensive collection of annotated data which may not be available. To overcome the…

计算与语言 · 计算机科学 2018-10-02 Wasi Uddin Ahmad , Xueying Bai , Nanyun Peng , Kai-Wei Chang

Protein language models often take into consideration the alignment between a protein sequence and its textual description. However, they do not take structural information into consideration. Traditional methods treat sequence and…

机器学习 · 计算机科学 2026-03-10 Aditya Ranganath , Hasin Us Sami , Kowshik Thopalli , Bhavya Kailkhura , Wesam Sakla

Test-Time Reinforcement Learning (TTRL) enables Large Language Models (LLMs) to enhance reasoning capabilities on unlabeled test streams by deriving pseudo-rewards from majority voting consensus. However, existing TTRL methods rely…

机器学习 · 计算机科学 2026-04-21 Dong Yan , Jian Liang , Yanbo Wang , Shuo Lu , Ran He , Tieniu Tan

Unpaired image-to-image translation involves learning mappings between source domain and target domain in the absence of aligned or corresponding samples. Score based diffusion models have demonstrated state-of-the-art performance in…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Venkata Narendra Kotyada , Revanth Eranki , Nagesh Bhattu Sristy

Contrastive learning has achieved great success in self-supervised visual representation learning, but existing approaches mostly ignored spatial information which is often crucial for visual representation. This paper presents…

计算机视觉与模式识别 · 计算机科学 2020-11-20 Xinyue Huo , Lingxi Xie , Longhui Wei , Xiaopeng Zhang , Hao Li , Zijie Yang , Wengang Zhou , Houqiang Li , Qi Tian

Semantic role labeling (SRL), also known as shallow semantic parsing, is an important yet challenging task in NLP. Motivated by the close correlation between syntactic and semantic structures, traditional discrete-feature-based SRL…

计算与语言 · 计算机科学 2019-07-23 Qingrong Xia , Zhenghua Li , Min Zhang , Meishan Zhang , Guohong Fu , Rui Wang , Luo Si

The representation of events in text plays a significant role in various NLP tasks. Recent research demonstrates that contrastive learning has the ability to improve event comprehension capabilities of Pre-trained Language Models (PLMs) and…

计算与语言 · 计算机科学 2024-04-30 Yubo Feng , Lishuang Li , Yi Xiang , Xueyang Qin

Self-supervised learning (SSL) has become prevalent for learning representations in computer vision. Notably, SSL exploits contrastive learning to encourage visual representations to be invariant under various image transformations. The…

计算机视觉与模式识别 · 计算机科学 2022-10-25 Swati Jindal , Roberto Manduchi

In this paper, we propose a fully supervised pre-training scheme based on contrastive learning particularly tailored to dense classification tasks. The proposed Context-Self Contrastive Loss (CSCL) learns an embedding space that makes…

计算机视觉与模式识别 · 计算机科学 2024-02-06 Michail Tarasiou , Riza Alp Guler , Stefanos Zafeiriou

Context-aware methods achieved great success in supervised scene text recognition via incorporating semantic priors from words. We argue that such prior contextual information can be interpreted as the relations of textual primitives due to…

计算机视觉与模式识别 · 计算机科学 2023-08-02 Jinglei Zhang , Tiancheng Lin , Yi Xu , Kai Chen , Rui Zhang

Contrastive learning (CL) methods effectively learn data representations in a self-supervision manner, where the encoder contrasts each positive sample over multiple negative samples via a one-vs-many softmax cross-entropy loss. By…

Cross-modal retrieval (CMR) has been extensively applied in various domains, such as multimedia search engines and recommendation systems. Most existing CMR methods focus on image-to-text retrieval, whereas audio-to-text retrieval, a less…

声音 · 计算机科学 2023-09-19 Kaiyi Luo , Xulong Zhang , Jianzong Wang , Huaxiong Li , Ning Cheng , Jing Xiao