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Contrastive learning is widely used for sentence representation learning. Despite this prevalence, most studies have focused exclusively on English and few concern domain adaptation for domain-specific downstream tasks, especially for…

Computation and Language · Computer Science 2023-01-20 Zihao Chen , Hisashi Handa , Kimiaki Shirahama

Contrastive learning has been the dominant approach to train state-of-the-art sentence embeddings. Previous studies have typically learned sentence embeddings either through the use of human-annotated natural language inference (NLI) data…

Computation and Language · Computer Science 2023-10-25 Junlei Zhang , Zhenzhong Lan , Junxian He

Sentence embeddings enable us to capture the semantic similarity of short texts. Most sentence embedding models are trained for general semantic textual similarity tasks. Therefore, to use sentence embeddings in a particular domain, the…

Computation and Language · Computer Science 2023-09-26 Tim Schopf , Dennis N. Schneider , Florian Matthes

Unsupervised sentence embeddings task aims to convert sentences to semantic vector representations. Most previous works directly use the sentence representations derived from pretrained language models. However, due to the token bias in…

Computation and Language · Computer Science 2024-02-26 Junlong Liu , Xichen Shang , Huawen Feng , Junhao Zheng , Qianli Ma

Most sentence embedding techniques heavily rely on expensive human-annotated sentence pairs as the supervised signals. Despite the use of large-scale unlabeled data, the performance of unsupervised methods typically lags far behind that of…

Computation and Language · Computer Science 2022-11-01 Yiming Chen , Yan Zhang , Bin Wang , Zuozhu Liu , Haizhou Li

Domain adaptation allows generative language models to address specific flaws caused by the domain shift of their application. However, the traditional adaptation by further training on in-domain data rapidly weakens the model's ability to…

Computation and Language · Computer Science 2023-05-29 Michal Štefánik , Marek Kadlčík , Petr Sojka

Unsupervised sentence embedding aims to obtain the most appropriate embedding for a sentence to reflect its semantic. Contrastive learning has been attracting developing attention. For a sentence, current models utilize diverse data…

Computation and Language · Computer Science 2022-03-03 Hao Wang , Yangguang Li , Zhen Huang , Yong Dou , Lingpeng Kong , Jing Shao

Contrastive learning has been studied for improving the performance of learning sentence embeddings. The current state-of-the-art method is the SimCSE, which takes dropout as the data augmentation method and feeds a pre-trained transformer…

Computation and Language · Computer Science 2021-11-25 Junlei Zhang , Zhenzhong lan

Though offering amazing contextualized token-level representations, current pre-trained language models actually take less attention on acquiring sentence-level representation during its self-supervised pre-training. If self-supervised…

Computation and Language · Computer Science 2022-10-24 Bohong Wu , Hai Zhao

Although there is significant progress in supervised semantic segmentation, it remains challenging to deploy the segmentation models to unseen domains due to domain biases. Domain adaptation can help in this regard by transferring knowledge…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Binhui Xie , Mingjia Li , Shuang Li

Unsupervised domain adaptation seeks to mitigate the distribution discrepancy between source and target domains, given labeled samples of the source domain and unlabeled samples of the target domain. Generative adversarial networks (GANs)…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Mohammad Mahfujur Rahman , Clinton Fookes , Sridha Sridharan

Sentence embeddings encode sentences in fixed dense vectors and have played an important role in various NLP tasks and systems. Methods for building sentence embeddings include unsupervised learning such as Quick-Thoughts and supervised…

Computation and Language · Computer Science 2021-06-10 Danqi Liao

Effective sentence embeddings that capture semantic nuances and generalize well across diverse contexts are crucial for natural language processing tasks. We address this challenge by applying SimCSE (Simple Contrastive Learning of Sentence…

Computation and Language · Computer Science 2025-01-24 Yumeng Wang , Ziran Zhou , Junjin Wang

Though offering amazing contextualized token-level representations, current pre-trained language models take less attention on accurately acquiring sentence-level representation during their self-supervised pre-training. However,…

Computation and Language · Computer Science 2022-10-24 Bohong Wu , Hai Zhao

This paper finds that contrastive learning can produce superior sentence embeddings for pre-trained models but is also vulnerable to backdoor attacks. We present the first backdoor attack framework, BadCSE, for state-of-the-art sentence…

Computation and Language · Computer Science 2022-10-21 Xiaoyi Chen , Baisong Xin , Shengfang Zhai , Shiqing Ma , Qingni Shen , Zhonghai Wu

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…

Computation and Language · Computer Science 2022-03-14 Haochen Tan , Wei Shao , Han Wu , Ke Yang , Linqi Song

Generic word embeddings are trained on large-scale generic corpora; Domain Specific (DS) word embeddings are trained only on data from a domain of interest. This paper proposes a method to combine the breadth of generic embeddings with the…

Computation and Language · Computer Science 2018-05-15 Prathusha K Sarma , YIngyu Liang , William A Sethares

Domain adaptation for sentiment analysis is challenging due to the fact that supervised classifiers are very sensitive to changes in domain. The two most prominent approaches to this problem are structural correspondence learning and…

Computation and Language · Computer Science 2018-06-15 Jeremy Barnes , Roman Klinger , Sabine Schulte im Walde

We introduce a novel approach to unsupervised and semi-supervised domain adaptation for semantic segmentation. Unlike many earlier methods that rely on adversarial learning for feature alignment, we leverage contrastive learning to bridge…

Computer Vision and Pattern Recognition · Computer Science 2021-04-23 Weizhe Liu , David Ferstl , Samuel Schulter , Lukas Zebedin , Pascal Fua , Christian Leistner

This paper introduces a novel synthetic dataset that captures urban scenes under a variety of weather conditions, providing pixel-perfect, ground-truth-aligned images to facilitate effective feature alignment across domains. Additionally,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Javier Montalvo , Roberto Alcover-Couso , Pablo Carballeira , Álvaro García-Martín , Juan C. SanMiguel , Marcos Escudero-Viñolo
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