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Hashing techniques have been applied broadly in retrieval tasks due to their low storage requirements and high speed of processing. Many hashing methods based on a single view have been extensively studied for information retrieval.…

Machine Learning · Computer Science 2020-01-07 Jun Yu , Xiao-Jun Wu , Josef Kittler

Hashing methods have been widely used for efficient similarity retrieval on large scale image database. Traditional hashing methods learn hash functions to generate binary codes from hand-crafted features, which achieve limited accuracy…

Computer Vision and Pattern Recognition · Computer Science 2017-11-08 Jian Zhang , Yuxin Peng

Due to its low storage cost and fast query speed, hashing has been recognized to accomplish similarity search in large-scale multimedia retrieval applications. Particularly supervised hashing has recently received considerable research…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Zheng Zhang , Guo-sen Xie , Yang Li , Sheng Li , Zi Huang

Recent years have witnessed wide application of hashing for large-scale image retrieval. However, most existing hashing methods are based on hand-crafted features which might not be optimally compatible with the hashing procedure. Recently,…

Machine Learning · Computer Science 2016-04-22 Wu-Jun Li , Sheng Wang , Wang-Cheng Kang

The volume-wise labeling of 3D medical images is expertise-demanded and time-consuming; hence semi-supervised learning (SSL) is highly desirable for training with limited labeled data. Imbalanced class distribution is a severe problem that…

Image and Video Processing · Electrical Eng. & Systems 2023-07-25 Haonan Wang , Xiaomeng Li

In this paper, we propose a learning-based supervised discrete hashing method. Binary hashing is widely used for large-scale image retrieval as well as video and document searches because the compact representation of binary code is…

Computer Vision and Pattern Recognition · Computer Science 2016-12-01 Gou Koutaki , Keiichiro Shirai , Mitsuru Ambai

Unsupervised video hashing usually optimizes binary codes by learning to reconstruct input videos. Such reconstruction constraint spends much effort on frame-level temporal context changes without focusing on video-level global semantics…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Pandeng Li , Hongtao Xie , Jiannan Ge , Lei Zhang , Shaobo Min , Yongdong Zhang

Most self-supervised learning (SSL) methods learn continuous visual representations by aligning different views of the same input, offering limited control over how information is structured across representation dimensions. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Kawtar Zaher , Ilyass Moummad , Olivier Buisson , Alexis Joly

Recently, deep supervised cross-modal hashing methods have achieve compelling success by learning semantic information in a self-supervised way. However, they still suffer from the key limitation that the multi-label semantic extraction…

Machine Learning · Computer Science 2025-10-14 Changchang Sun , Vickie Chen , Yan Yan

Learning compact binary codes for image retrieval problem using deep neural networks has recently attracted increasing attention. However, training deep hashing networks is challenging due to the binary constraints on the hash codes. In…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Thanh-Toan Do , Tuan Hoang , Dang-Khoa Le Tan , Anh-Dzung Doan , Ngai-Man Cheung

Hashing has been recognized as an efficient representation learning method to effectively handle big data due to its low computational complexity and memory cost. Most of the existing hashing methods focus on learning the low-dimensional…

Computer Vision and Pattern Recognition · Computer Science 2019-01-08 Yujuan Ding , Wai Kueng Wong , Zhihui Lai , Zheng Zhang

Deep hashing, due to its low cost and efficient retrieval advantages, is widely valued in cross-modal retrieval. However, existing cross-modal hashing methods either explore the relationships between data points, which inevitably leads to…

Information Retrieval · Computer Science 2024-10-22 Hao Chen , Lei Zhu , Xinghui Zhu

Label information is widely used in hashing methods because of its effectiveness of improving the precision. The existing hashing methods always use two different projections to represent the mutual regression between hash codes and class…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Xingbo Liu , Xiushan Nie , Yilong Yin

Node classification in structural networks has been proven to be useful in many real world applications. With the development of network embedding, the performance of node classification has been greatly improved. However, nearly all the…

Social and Information Networks · Computer Science 2021-04-13 Jia-Nan Guo , Xian-Ling Mao , Shu-Yang Lin , Wei Wei , Heyan Huang

Deep hashing enables image retrieval by end-to-end learning of deep representations and hash codes from training data with pairwise similarity information. Subject to the distribution skewness underlying the similarity information, most…

Computer Vision and Pattern Recognition · Computer Science 2018-09-06 Zhangjie Cao , Ziping Sun , Mingsheng Long , Jianmin Wang , Philip S. Yu

With the rapid growth of textual content on the Internet, efficient large-scale semantic text retrieval has garnered increasing attention from both academia and industry. Text hashing, which projects original texts into compact binary hash…

Information Retrieval · Computer Science 2025-11-03 Liyang He , Zhenya Huang , Cheng Yang , Rui Li , Zheng Zhang , Kai Zhang , Zhi Li , Qi Liu , Enhong Chen

Hashing has attracted increasing research attentions in recent years due to its high efficiency of computation and storage in image retrieval. Recent works have demonstrated the superiority of simultaneous feature representations and hash…

Computer Vision and Pattern Recognition · Computer Science 2019-02-20 Lu Jin , Xiangbo Shu , Kai Li , Zechao Li , Guo-Jun Qi , Jinhui Tang

Due to its fast retrieval and storage efficiency capabilities, hashing has been widely used in nearest neighbor retrieval tasks. By using deep learning based techniques, hashing can outperform non-learning based hashing technique in many…

Computer Vision and Pattern Recognition · Computer Science 2019-06-04 Zhan Yang , Osolo Ian Raymond , WuQing Sun , Jun Long

Hashing has shown its efficiency and effectiveness in facilitating large-scale multimedia applications. Supervised knowledge e.g. semantic labels or pair-wise relationship) associated to data is capable of significantly improving the…

Computer Vision and Pattern Recognition · Computer Science 2016-06-17 Yang Yang , Weilun Chen , Yadan Luo , Fumin Shen , Jie Shao , Heng Tao Shen

Image clustering, which involves grouping images into different clusters without labels, is a key task in unsupervised learning. Although previous deep clustering methods have achieved remarkable results, they only explore the intrinsic…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Haixin Zhang , Yongjun Li , Dong Huang