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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…

图像与视频处理 · 电气工程与系统科学 2023-07-25 Haonan Wang , Xiaomeng Li

Perceptual image hashing methods are often applied in various objectives, such as image retrieval, finding duplicate or near-duplicate images, and finding similar images from large-scale image content. The main challenge in image hashing…

计算机视觉与模式识别 · 计算机科学 2021-08-27 Rubel Biswas , Pablo Blanco-Medina

When facing large-scale image datasets, online hashing serves as a promising solution for online retrieval and prediction tasks. It encodes the online streaming data into compact binary codes, and simultaneously updates the hash functions…

信息检索 · 计算机科学 2019-04-24 Mingbao Lin , Rongrong Ji , Hong Liu , Xiaoshuai Sun , Yongjian Wu , Yunsheng Wu

Supervised hashing methods are widely-used for nearest neighbor search in computer vision applications. Most state-of-the-art supervised hashing approaches employ batch-learners. Unfortunately, batch-learning strategies can be inefficient…

计算机视觉与模式识别 · 计算机科学 2015-11-11 Fatih Cakir , Sarah Adel Bargal , Stan Sclaroff

We develop a scalable algorithm to learn binary hash codes for indexing large-scale datasets. Near-isometric binary hashing (NIBH) is a data-dependent hashing scheme that quantizes the output of a learned low-dimensional embedding to obtain…

数据结构与算法 · 计算机科学 2016-03-15 Amirali Aghazadeh , Andrew Lan , Anshumali Shrivastava , Richard Baraniuk

With the rapid growth of multimodal media data on the Web in recent years, hash learning methods as a way to achieve efficient and flexible cross-modal retrieval of massive multimedia data have received a lot of attention from the current…

信息检索 · 计算机科学 2022-07-27 Yitian Long

Hashing methods have been recently found very effective in retrieval of remote sensing (RS) images due to their computational efficiency and fast search speed. The traditional hashing methods in RS usually exploit hand-crafted features to…

计算机视觉与模式识别 · 计算机科学 2021-01-07 Subhankar Roy , Enver Sangineto , Begüm Demir , Nicu Sebe

Abundant real-world data can be naturally represented by large-scale networks, which demands efficient and effective learning algorithms. At the same time, labels may only be available for some networks, which demands these algorithms to be…

机器学习 · 计算机科学 2022-09-08 Tao He , Lianli Gao , Jingkuan Song , Yuan-Fang Li

Unsupervised binary representation allows fast data retrieval without any annotations, enabling practical application like fast person re-identification and multimedia retrieval. It is argued that conflicts in binary space are one of the…

计算机视觉与模式识别 · 计算机科学 2020-11-23 Fangrui Liu , Zheng Liu

Due to its low storage cost and fast query speed, cross-modal hashing (CMH) has been widely used for similarity search in multimedia retrieval applications. However, almost all existing CMH methods are based on hand-crafted features which…

信息检索 · 计算机科学 2016-02-16 Qing-Yuan Jiang , Wu-Jun Li

Existing fine-grained hashing methods typically lack code interpretability as they compute hash code bits holistically using both global and local features. To address this limitation, we propose ConceptHash, a novel method that achieves…

计算机视觉与模式识别 · 计算机科学 2024-06-13 Kam Woh Ng , Xiatian Zhu , Yi-Zhe Song , Tao Xiang

Fast similarity search is a key component in large-scale information retrieval, where semantic hashing has become a popular strategy for representing documents as binary hash codes. Recent advances in this area have been obtained through…

信息检索 · 计算机科学 2019-06-04 Casper Hansen , Christian Hansen , Jakob Grue Simonsen , Stephen Alstrup , Christina Lioma

Labeling semantic segmentation datasets is a costly and laborious process if compared with tasks like image classification and object detection. This is especially true for remote sensing applications that not only work with extremely high…

计算机视觉与模式识别 · 计算机科学 2021-08-27 Matheus Barros Pereira , Jefersson Alex dos Santos

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.…

机器学习 · 计算机科学 2020-01-07 Jun Yu , Xiao-Jun Wu , Josef Kittler

Learning based hashing plays a pivotal role in large-scale visual search. However, most existing hashing algorithms tend to learn shallow models that do not seek representative binary codes. In this paper, we propose a novel hashing…

计算机视觉与模式识别 · 计算机科学 2018-04-26 Zhaoqiang Xia , Xiaoyi Feng , Jinye Peng , Abdenour Hadid

Several deep supervised hashing techniques have been proposed to allow for efficiently querying large image databases. However, deep supervised image hashing techniques are developed, to a great extent, heuristically often leading to…

计算机视觉与模式识别 · 计算机科学 2019-01-17 Nikolaos Passalis , Anastasios Tefas

Image captioning models often suffer from performance degradation when applied to novel datasets, as they are typically trained on domain-specific data. To enhance generalization in out-of-domain scenarios, retrieval-augmented approaches…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Hao Wu , Zhihang Zhong , Xiao Sun

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…

社会与信息网络 · 计算机科学 2021-04-13 Jia-Nan Guo , Xian-Ling Mao , Shu-Yang Lin , Wei Wei , Heyan Huang

Our work focuses on tackling large-scale fine-grained image retrieval as ranking the images depicting the concept of interests (i.e., the same sub-category labels) highest based on the fine-grained details in the query. It is desirable to…

信息检索 · 计算机科学 2023-11-23 Xiu-Shen Wei , Yang Shen , Xuhao Sun , Peng Wang , Yuxin Peng

Image enhancement is an important image processing technique that processes images suitably for a specific application e.g. image editing. The conventional solutions of image enhancement are grouped into two categories which are spatial…

计算机视觉与模式识别 · 计算机科学 2016-09-14 Hui Li , Xiaomeng Wang , Weifeng Liu , Yanjiang Wang