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Self-supervised learning has gained popularity because of its ability to avoid the cost of annotating large-scale datasets. It is capable of adopting self-defined pseudo labels as supervision and use the learned representations for several…

计算机视觉与模式识别 · 计算机科学 2021-02-09 Ashish Jaiswal , Ashwin Ramesh Babu , Mohammad Zaki Zadeh , Debapriya Banerjee , Fillia Makedon

Humans rely on effective representations to learn from few examples and abstract useful information from sensory data. Inducing such representations in machine learning models has been shown to improve their performance on various…

In this paper, we introduce a self-supervised learning method to enhance the graph-level representations with the help of a set of subgraphs. For this purpose, we propose a universal framework to generate subgraphs in an auto-regressive way…

机器学习 · 计算机科学 2021-05-10 Chenguang Wang , Ziwen Liu

Modern language models can generate high-quality short texts. However, they often meander or are incoherent when generating longer texts. These issues arise from the next-token-only language modeling objective. Recent work in…

计算与语言 · 计算机科学 2023-05-12 Rose E Wang , Esin Durmus , Noah Goodman , Tatsunori Hashimoto

Learning clients embeddings from sequences of their historic communications is central to financial applications. While large language models (LLMs) offer general world knowledge, their direct use on long event sequences is computationally…

Learning meaningful representations of data is an important aspect of machine learning and has recently been successfully applied to many domains like language understanding or computer vision. Instead of training a model for one specific…

机器学习 · 计算机科学 2021-06-16 Peter Pfeiffer , Johannes Lahann , Peter Fettke

We propose Graph Contrastive Learning (GraphCL), a general framework for learning node representations in a self supervised manner. GraphCL learns node embeddings by maximizing the similarity between the representations of two randomly…

机器学习 · 计算机科学 2020-07-17 Hakim Hafidi , Mounir Ghogho , Philippe Ciblat , Ananthram Swami

Self-supervised learning for time-series data holds potential similar to that recently unleashed in Natural Language Processing and Computer Vision. While most existing works in this area focus on contrastive learning, we propose a…

机器学习 · 计算机科学 2023-11-21 Felix Pieper , Konstantin Ditschuneit , Martin Genzel , Alexandra Lindt , Johannes Otterbach

With the rise of contrastive learning, unsupervised graph representation learning has been booming recently, even surpassing the supervised counterparts in some machine learning tasks. Most of existing contrastive models for graph…

机器学习 · 计算机科学 2021-12-16 Chunyang Zhang , Hongyu Yao , C. L. Philip Chen , Yuena Lin

Deep learning models are modern tools for spatio-temporal graph (STG) forecasting. Though successful, we argue that data scarcity is a key factor limiting their recent improvements. Meanwhile, contrastive learning has been an effective…

机器学习 · 计算机科学 2022-11-04 Xu Liu , Yuxuan Liang , Chao Huang , Yu Zheng , Bryan Hooi , Roger Zimmermann

We present a new self-supervised paradigm on point cloud sequence understanding. Inspired by the discriminative and generative self-supervised methods, we design two tasks, namely point cloud sequence based Contrastive Prediction and…

计算机视觉与模式识别 · 计算机科学 2023-05-23 Xiaoxiao Sheng , Zhiqiang Shen , Gang Xiao

Session-based recommendations aim to predict the next behavior of users based on ongoing sessions. The previous works have been modeling the session as a variable-length of a sequence of items and learning the representation of both…

信息检索 · 计算机科学 2022-09-26 Eunkyu Oh , Taehun Kim , Minsoo Kim , Yunhu Ji , Sushil Khyalia

Tremendous progress has been made in visual representation learning, notably with the recent success of self-supervised contrastive learning methods. Supervised contrastive learning has also been shown to outperform its cross-entropy…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Ashraful Islam , Chun-Fu Chen , Rameswar Panda , Leonid Karlinsky , Richard Radke , Rogerio Feris

Self-supervised learning has been successfully applied to pre-train video representations, which aims at efficient adaptation from pre-training domain to downstream tasks. Existing approaches merely leverage contrastive loss to learn…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Yuanze Lin , Xun Guo , Yan Lu

Discriminative representation is crucial for the association step in multi-object tracking. Recent work mainly utilizes features in single or neighboring frames for constructing metric loss and empowering networks to extract representation…

计算机视觉与模式识别 · 计算机科学 2022-04-06 En Yu , Zhuoling Li , Shoudong Han

Unsupervised graph representation learning has emerged as a powerful tool to address real-world problems and achieves huge success in the graph learning domain. Graph contrastive learning is one of the unsupervised graph representation…

机器学习 · 计算机科学 2022-03-08 Haoran Yang , Hongxu Chen , Shirui Pan , Lin Li , Philip S. Yu , Guandong Xu

The lack of labeled data is a key challenge for learning useful representation from time series data. However, an unsupervised representation framework that is capable of producing high quality representations could be of great value. It is…

We propose a unified point cloud video self-supervised learning framework for object-centric and scene-centric data. Previous methods commonly conduct representation learning at the clip or frame level and cannot well capture fine-grained…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Xiaoxiao Sheng , Zhiqiang Shen , Gang Xiao , Longguang Wang , Yulan Guo , Hehe Fan

International audit standards require the direct assessment of a financial statement's underlying accounting transactions, referred to as journal entries. Recently, driven by the advances in artificial intelligence, deep learning inspired…

机器学习 · 计算机科学 2021-09-24 Marco Schreyer , Timur Sattarov , Damian Borth

To equip artificial intelligence with a comprehensive understanding towards a temporal world, video and 4D panoptic scene graph generation abstracts visual data into nodes to represent entities and edges to capture temporal relations.…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Thong Thanh Nguyen , Xiaobao Wu , Yi Bin , Cong-Duy T Nguyen , See-Kiong Ng , Anh Tuan Luu