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In step with the digitalization of transportation, we are witnessing a growing range of path-based smart-city applications, e.g., travel-time estimation and travel path ranking. A temporal path(TP) that includes temporal information, e.g.,…

机器学习 · 计算机科学 2022-04-18 Sean Bin Yang , Chenjuan Guo , Jilin Hu , Bin Yang , Jian Tang , Christian S. Jensen

We present a contrasting learning approach with data augmentation techniques to learn document representations in an unsupervised manner. Inspired by recent contrastive self-supervised learning algorithms used for image and NLP pretraining,…

Temporal Graph Networks (TGNs) have shown remarkable performance in learning representation for continuous-time dynamic graphs. However, real-world dynamic graphs typically contain diverse and intricate noise. Noise can significantly…

机器学习 · 计算机科学 2023-09-06 Siwei Zhang , Yun Xiong , Yao Zhang , Yiheng Sun , Xi Chen , Yizhu Jiao , Yangyong Zhu

Vision-Language Models (VLMs) such as CLIP have demonstrated remarkable generalization capabilities to downstream tasks. However, existing prompt tuning based frameworks need to parallelize learnable textual inputs for all categories,…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Hao Tan , Jun Li , Yizhuang Zhou , Jun Wan , Zhen Lei , Xiangyu Zhang

Self-supervised contrastive learning frameworks have progressed rapidly over the last few years. In this paper, we propose a novel loss function for contrastive learning. We model our pre-training task as a binary classification problem to…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Siladittya Manna , Umapada Pal , Saumik Bhattacharya

Modeling various aspects that make a music piece unique is a challenging task, requiring the combination of multiple sources of information. Deep learning is commonly used to obtain representations using various sources of information, such…

声音 · 计算机科学 2021-04-05 Andres Ferraro , Xavier Favory , Konstantinos Drossos , Yuntae Kim , Dmitry Bogdanov

While image-text representation learning has become very popular in recent years, existing models tend to lack spatial awareness and have limited direct applicability for dense understanding tasks. For this reason, self-supervised…

The learning objective of vision-language approach of CLIP does not effectively account for the noisy many-to-many correspondences found in web-harvested image captioning datasets, which contributes to its compute and data inefficiency. To…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Alex Andonian , Shixing Chen , Raffay Hamid

Unsupervised learning has made substantial progress over the last few years, especially by means of contrastive self-supervised learning. The dominating dataset for benchmarking self-supervised learning has been ImageNet, for which recent…

图像与视频处理 · 电气工程与系统科学 2022-08-17 Karin Stacke , Jonas Unger , Claes Lundström , Gabriel Eilertsen

Speech enhancement (SE) is proved effective in reducing noise from noisy speech signals for downstream automatic speech recognition (ASR), where multi-task learning strategy is employed to jointly optimize these two tasks. However, the…

音频与语音处理 · 电气工程与系统科学 2023-05-04 Yuchen Hu , Chen Chen , Ruizhe Li , Qiushi Zhu , Eng Siong Chng

In medical imaging, manual annotations can be expensive to acquire and sometimes infeasible to access, making conventional deep learning-based models difficult to scale. As a result, it would be beneficial if useful representations could be…

计算机视觉与模式识别 · 计算机科学 2020-08-18 Jianbo Jiao , Yifan Cai , Mohammad Alsharid , Lior Drukker , Aris T. Papageorghiou , J. Alison Noble

Session-based recommendation techniques aim to capture dynamic user behavior by analyzing past interactions. However, existing methods heavily rely on historical item ID sequences to extract user preferences, leading to challenges such as…

信息检索 · 计算机科学 2023-07-21 Zhipeng Zhang , Piao Tong , Yingwei Ma , Qiao Liu , Xujiang Liu , Xu Luo

Time-series representation learning can extract representations from data with temporal dynamics and sparse labels. When labeled data are sparse but unlabeled data are abundant, contrastive learning, i.e., a framework to learn a latent…

机器学习 · 计算机科学 2023-03-03 Heejeong Choi , Pilsung Kang

Audio-text contrastive models have become a powerful approach in music representation learning. Despite their empirical success, however, little is known about the influence of key design choices on the quality of music-text representations…

声音 · 计算机科学 2024-09-19 Ilaria Manco , Justin Salamon , Oriol Nieto

Contrastive vision-language models like CLIP exhibit remarkable zero-shot generalization. However, prompt tuning remains highly sensitive to label noise, as mislabeled samples generate disproportionately large gradients that can overwhelm…

计算机视觉与模式识别 · 计算机科学 2026-05-04 Jiayu Li , Jiaxin Qi , Sheng Zhou , Jiaqiang Huang , Xiansheng Hua

Contrastive learning has moved the state of the art for many tasks in computer vision and information retrieval in recent years. This poster is the first work that applies supervised contrastive learning to the task of product matching in…

机器学习 · 计算机科学 2022-05-03 Ralph Peeters , Christian Bizer

The challenges in applying contrastive learning to speaker verification (SV) are that the softmax-based contrastive loss lacks discriminative power and that the hard negative pairs can easily influence learning. To overcome the first…

音频与语音处理 · 电气工程与系统科学 2023-03-14 Zhe Li , Man-Wai Mak , Helen Mei-Ling Meng

Large-scale multimodal contrastive learning has recently achieved impressive success in learning rich and transferable representations, yet it remains fundamentally limited by the uniform treatment of feature dimensions and the neglect of…

机器学习 · 计算机科学 2026-02-11 Jinjin Guo , Yexin Li , Zhichao Huang , Jun Fang , Zhiyuan Liu , Chao Liu , Pengzhang Liu , Qixia Jiang

As a successful approach to self-supervised learning, contrastive learning aims to learn invariant information shared among distortions of the input sample. While contrastive learning has yielded continuous advancements in sampling strategy…

机器学习 · 计算机科学 2023-08-11 Jiangmeng Li , Wenwen Qiang , Yanan Zhang , Wenyi Mo , Changwen Zheng , Bing Su , Hui Xiong

Punctuation is critical in understanding natural language text. Currently, most automatic speech recognition (ASR) systems do not generate punctuation, which affects the performance of downstream tasks, such as intent detection and slot…

计算与语言 · 计算机科学 2023-03-07 Qiushi Huang , Tom Ko , H Lilian Tang , Xubo Liu , Bo Wu