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This paper presents a solution to the challenges faced by contrastive learning in sequential recommendation systems. In particular, it addresses the issue of false negative, which limits the effectiveness of recommendation algorithms. By…

Information Retrieval · Computer Science 2023-07-12 Jaeheyoung Jeon , Jung Hyun Ryu , Jewoong Cho , Myungjoo Kang

In this paper, we present a framework for contrastive learning for audio representations, in a self supervised frame work without access to any ground truth labels. The core idea in self supervised contrastive learning is to map an audio…

Sound · Computer Science 2021-03-18 Prateek Verma , Julius Smith

Learning speaker-specific features is vital in many applications like speaker recognition, diarization and speech recognition. This paper provides a novel approach, we term Neural Predictive Coding (NPC), to learn speaker-specific…

Sound · Computer Science 2019-07-18 Arindam Jati , Panayiotis Georgiou

We are interested in representation learning from labeled or unlabeled data. Inspired by recent success of self-supervised learning (SSL), we develop a non-contrastive representation learning method that can exploit additional knowledge.…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Ajinkya Tejankar , Soroush Abbasi Koohpayegani , Hamed Pirsiavash

The goal of this work is to train discriminative cross-modal embeddings without access to manually annotated data. Recent advances in self-supervised learning have shown that effective representations can be learnt from natural cross-modal…

Sound · Computer Science 2020-11-05 Soo-Whan Chung , Hong Goo Kang , Joon Son Chung

In this paper, we propose a novel deep neural network architecture, Speech2Vec, for learning fixed-length vector representations of audio segments excised from a speech corpus, where the vectors contain semantic information pertaining to…

Computation and Language · Computer Science 2018-06-12 Yu-An Chung , James Glass

Contrastive Self-supervised Learning (CSL) is a practical solution that learns meaningful visual representations from massive data in an unsupervised approach. The ordinary CSL embeds the features extracted from neural networks onto…

Computer Vision and Pattern Recognition · Computer Science 2022-08-19 Shentong Mo , Zhun Sun , Chao Li

We explore self-supervised models that can be potentially deployed on mobile devices to learn general purpose audio representations. Specifically, we propose methods that exploit the temporal context in the spectrogram domain. One method…

Audio and Speech Processing · Electrical Eng. & Systems 2019-05-29 Marco Tagliasacchi , Beat Gfeller , Félix de Chaumont Quitry , Dominik Roblek

Non-parametric neural language models (NLMs) learn predictive distributions of text utilizing an external datastore, which allows them to learn through explicitly memorizing the training datapoints. While effective, these models often…

Computation and Language · Computer Science 2021-11-16 Junxian He , Graham Neubig , Taylor Berg-Kirkpatrick

Audio events are quite often overlapping in nature, and more prone to noise than visual signals. There has been increasing evidence for the superior performance of representations learned using sparse dictionaries for applications like…

Machine Learning · Computer Science 2017-12-05 Vaisakh Shaj , Puranjoy Bhattacharya

Adversarial training has shown impressive success in learning bilingual dictionary without any parallel data by mapping monolingual embeddings to a shared space. However, recent work has shown superior performance for non-adversarial…

Computation and Language · Computer Science 2019-04-09 Tasnim Mohiuddin , Shafiq Joty

This work considers supervised contrastive learning for semantic segmentation. We apply contrastive learning to enhance the discriminative power of the multi-scale features extracted by semantic segmentation networks. Our key methodological…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Theodoros Pissas , Claudio S. Ravasio , Lyndon Da Cruz , Christos Bergeles

Since its introduction, unsupervised representation learning has attracted a lot of attention from the research community, as it is demonstrated to be highly effective and easy-to-apply in tasks such as dimension reduction, clustering,…

Machine Learning · Computer Science 2018-11-07 Chin-Chia Michael Yeh , Yan Zhu , Evangelos E. Papalexakis , Abdullah Mueen , Eamonn Keogh

Learning sentence embeddings in an unsupervised manner is fundamental in natural language processing. Recent common practice is to couple pre-trained language models with unsupervised contrastive learning, whose success relies on augmenting…

Computation and Language · Computer Science 2022-10-20 Qiyu Wu , Chongyang Tao , Tao Shen , Can Xu , Xiubo Geng , Daxin Jiang

We propose Corder, a self-supervised contrastive learning framework for source code model. Corder is designed to alleviate the need of labeled data for code retrieval and code summarization tasks. The pre-trained model of Corder can be used…

Software Engineering · Computer Science 2021-05-25 Nghi D. Q. Bui , Yijun Yu , Lingxiao Jiang

Embedding audio signal segments into vectors with fixed dimensionality is attractive because all following processing will be easier and more efficient, for example modeling, classifying or indexing. Audio Word2Vec previously proposed was…

Computation and Language · Computer Science 2018-11-08 Sung-Feng Huang , Yi-Chen Chen , Hung-yi Lee , Lin-shan Lee

Neural dependency parsing has achieved remarkable performance for low resource morphologically rich languages. It has also been well-studied that morphologically rich languages exhibit relatively free word order. This prompts a fundamental…

Computation and Language · Computer Science 2025-07-22 Pretam Ray , Jivnesh Sandhan , Amrith Krishna , Pawan Goyal

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…

Machine Learning · Computer Science 2026-03-10 Aditya Ranganath , Hasin Us Sami , Kowshik Thopalli , Bhavya Kailkhura , Wesam Sakla

In this paper, we introduce the task of learning unsupervised dialogue embeddings. Trivial approaches such as combining pre-trained word or sentence embeddings and encoding through pre-trained language models (PLMs) have been shown to be…

Computation and Language · Computer Science 2022-10-28 Che Liu , Rui Wang , Junfeng Jiang , Yongbin Li , Fei Huang

Contrastive learning has achieved remarkable success on various high-level tasks, but there are fewer contrastive learning-based methods proposed for low-level tasks. It is challenging to adopt vanilla contrastive learning technologies…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Gang Wu , Junjun Jiang , Xianming Liu