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Deep clustering against self-supervised learning is a very important and promising direction for unsupervised visual representation learning since it requires little domain knowledge to design pretext tasks. However, the key component,…

计算机视觉与模式识别 · 计算机科学 2020-08-21 Weijie Chen , Shiliang Pu , Di Xie , Shicai Yang , Yilu Guo , Luojun Lin

Deep neural networks have achieved great successes on the image captioning task. However, most of the existing models depend heavily on paired image-sentence datasets, which are very expensive to acquire. In this paper, we make the first…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Yang Feng , Lin Ma , Wei Liu , Jiebo Luo

Unsupervised sentence embeddings learning has been recently dominated by contrastive learning methods (e.g., SimCSE), which keep positive pairs similar and push negative pairs apart. The contrast operation aims to keep as much information…

计算与语言 · 计算机科学 2022-09-23 Shaobin Chen , Jie Zhou , Yuling Sun , Liang He

Recent empirical works have successfully used unlabeled data to learn feature representations that are broadly useful in downstream classification tasks. Several of these methods are reminiscent of the well-known word2vec embedding…

机器学习 · 计算机科学 2019-02-26 Sanjeev Arora , Hrishikesh Khandeparkar , Mikhail Khodak , Orestis Plevrakis , Nikunj Saunshi

The challenges faced by text classification with large tag systems in natural language processing tasks include multiple tag systems, uneven data distribution, and high noise. To address these problems, the ESimCSE unsupervised comparative…

机器学习 · 计算机科学 2023-04-27 Ruan Lu , Zhou HangCheng , Ran Meng , Zhao Jin , Qin JiaoYu , Wei Feng , Wang ChenZi

Neural language models do not scale well when the vocabulary is large. Noise-contrastive estimation (NCE) is a sampling-based method that allows for fast learning with large vocabularies. Although NCE has shown promising performance in…

计算与语言 · 计算机科学 2017-09-25 Farhana Ferdousi Liza , Marek Grzes

In the last few years, neural networks have been intensively used to develop meaningful distributed representations of words and contexts around them. When these representations, also known as "embeddings", are learned from unsupervised…

计算与语言 · 计算机科学 2019-08-07 Giuseppe Marra , Andrea Zugarini , Stefano Melacci , Marco Maggini

We propose a self-supervised representation learning model for the task of unsupervised phoneme boundary detection. The model is a convolutional neural network that operates directly on the raw waveform. It is optimized to identify spectral…

音频与语音处理 · 电气工程与系统科学 2020-08-07 Felix Kreuk , Joseph Keshet , Yossi Adi

Multiview network embedding aims at projecting nodes in the network to low-dimensional vectors, while preserving their multiple relations and attribute information. Contrastive learning approaches have shown promising performance in this…

机器学习 · 计算机科学 2022-08-18 Mengqi Zhang , Yanqiao Zhu , Qiang Liu , Shu Wu , Liang Wang

This paper introduces contrastive siamese (c-siam) network, an architecture for leveraging unlabeled acoustic data in speech recognition. c-siam is the first network that extracts high-level linguistic information from speech by matching…

机器学习 · 计算机科学 2022-05-30 Soheil Khorram , Jaeyoung Kim , Anshuman Tripathi , Han Lu , Qian Zhang , Hasim Sak

We propose an unsupervised method to obtain cross-lingual embeddings without any parallel data or pre-trained word embeddings. The proposed model, which we call multilingual neural language models, takes sentences of multiple languages as…

计算与语言 · 计算机科学 2018-09-10 Takashi Wada , Tomoharu Iwata

Sentence compression reduces the length of text by removing non-essential content while preserving important facts and grammaticality. Unsupervised objective driven methods for sentence compression can be used to create customized models…

计算与语言 · 计算机科学 2022-05-18 Demian Gholipour Ghalandari , Chris Hokamp , Georgiana Ifrim

Unsupervised word translation from non-parallel inter-lingual corpora has attracted much research interest. Very recently, neural network methods trained with adversarial loss functions achieved high accuracy on this task. Despite the…

机器学习 · 计算机科学 2018-08-15 Yedid Hoshen , Lior Wolf

Self-supervised representation learning has achieved impressive empirical success, yet its theoretical understanding remains limited. In this work, we provide a theoretical perspective by formulating self-supervised representation learning…

机器学习 · 计算机科学 2025-10-14 Byeongchan Lee

Entity resolution is a widely studied problem with several proposals to match records across relations. Matching textual content is a widespread task in many applications, such as question answering and search. While recent methods achieve…

数据库 · 计算机科学 2021-12-17 Naser Ahmadi , Hansjorg Sand , Paolo Papotti

Self-supervised visual pretraining has shown significant progress recently. Among those methods, SimCLR greatly advanced the state of the art in self-supervised and semi-supervised learning on ImageNet. The input feature representations for…

计算与语言 · 计算机科学 2021-07-06 Dongwei Jiang , Wubo Li , Miao Cao , Wei Zou , Xiangang Li

Network intrusion detection, a well-explored cybersecurity field, has predominantly relied on supervised learning algorithms in the past two decades. However, their limitations in detecting only known anomalies prompt the exploration of…

密码学与安全 · 计算机科学 2025-10-06 Hamed Fard , Tobias Schalau , Gerhard Wunder

Vector representations of natural language are ubiquitous in search applications. Recently, various methods based on contrastive learning have been proposed to learn textual representations from unlabelled data; by maximizing alignment…

计算与语言 · 计算机科学 2023-07-17 Sachin J. Chanchani , Ruihong Huang

In recent years, self-supervised learning has had significant success in applications involving computer vision and natural language processing. The type of pretext task is important to this boost in performance. One common pretext task is…

计算机视觉与模式识别 · 计算机科学 2022-01-24 Ademola Okerinde , Sam Hoggatt , Divya Vani Lakkireddy , Nolan Brubaker , William Hsu , Lior Shamir , Brian Spiesman

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…

计算与语言 · 计算机科学 2022-10-24 Bohong Wu , Hai Zhao