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In this paper we present an efficient method for visual descriptors retrieval based on compact hash codes computed using a multiple k-means assignment. The method has been applied to the problem of approximate nearest neighbor (ANN) search…

计算机视觉与模式识别 · 计算机科学 2016-05-11 Simone Ercoli , Marco Bertini , Alberto Del Bimbo

Vector databases typically rely on approximate nearest neighbor (ANN) search to retrieve the top-k closest vectors to a query in embedding space. While effective, this approach often yields semantically redundant results, missing the…

机器学习 · 计算机科学 2025-07-29 Rahul Raja , Arpita Vats

Content Based Image Retrieval(CBIR) is one of the important subfield in the field of Information Retrieval. The goal of a CBIR algorithm is to retrieve semantically similar images in response to a query image submitted by the end user. CBIR…

信息检索 · 计算机科学 2014-09-03 Vikas Verma

Video-Text Retrieval (VTR) aims to search for the most relevant video related to the semantics in a given sentence, and vice versa. In general, this retrieval task is composed of four successive steps: video and textual feature…

计算机视觉与模式识别 · 计算机科学 2023-02-27 Cunjuan Zhu , Qi Jia , Wei Chen , Yanming Guo , Yu Liu

The re-ranking approach leverages high-confidence retrieved samples to refine retrieval results, which have been widely adopted as a post-processing tool for image retrieval tasks. However, we notice one main flaw of re-ranking, i.e., high…

计算机视觉与模式识别 · 计算机科学 2021-01-01 Xuanmeng Zhang , Minyue Jiang , Zhedong Zheng , Xiao Tan , Errui Ding , Yi Yang

Among the extensions of twin support vector machine (TSVM), some scholars have utilized K-nearest neighbor (KNN) graph to enhance TSVM's classification accuracy. However, these KNN-based TSVM classifiers have two major issues such as high…

机器学习 · 计算机科学 2019-06-25 A. Mir , Jalal A. Nasiri

This study combines two different learning paradigms, k-nearest neighbor (k-NN) rule, as memory-based learning paradigm and relevance vector machines (RVM), as statistical learning paradigm. This combination is performed in kernel space and…

机器学习 · 计算机科学 2021-03-09 Sara Hosseinzadeh Kassani , Farhood Rismanchian , Peyman Hosseinzadeh Kassani

Nowadays, digital content is widespread and simply redistributable, either lawfully or unlawfully. For example, after images are posted on the internet, other web users can modify them and then repost their versions, thereby generating…

计算机视觉与模式识别 · 计算机科学 2020-09-08 K. K. Thyagharajan , G. Kalaiarasi

Image-based 3D reconstruction is one of the most important tasks in Computer Vision with many solutions proposed over the last few decades. The objective is to extract metric information i.e. the geometry of scene objects directly from…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Qiao Chen , Charalambos Poullis

In recent years, we know that the interaction with images has increased. Image similarity involves fetching similar-looking images abiding by a given reference image. The target is to find out whether the image searched as a query can…

计算机视觉与模式识别 · 计算机科学 2022-05-19 Sayan Nath , Nikhil Nayak

The present research scholars are having keen interest in doing their research activities in the area of Data mining all over the world. Especially, [13]Mining Image data is the one of the essential features in this present scenario since…

计算机视觉与模式识别 · 计算机科学 2010-12-02 A. Kannan , V. Mohan , N. Anbazhagan

Video content classification is an important research content in computer vision, which is widely used in many fields, such as image and video retrieval, computer vision. This paper presents a model that is a combination of Convolutional…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Pradyumn Patil , Vishwajeet Pawar , Yashraj Pawar , Shruti Pisal

In this paper we present an extensive evaluation of visual descriptors for the content-based retrieval of remote sensing (RS) images. The evaluation includes global hand-crafted, local hand-crafted, and Convolutional Neural Network (CNNs)…

计算机视觉与模式识别 · 计算机科学 2017-08-09 Paolo Napoletano

The explosive increase and ubiquitous accessibility of visual data on the Web have led to the prosperity of research activity in image search or retrieval. With the ignorance of visual content as a ranking clue, methods with text search…

多媒体 · 计算机科学 2017-09-05 Wengang Zhou , Houqiang Li , Qi Tian

Candidate retrieval is the first stage in recommendation systems, where a light-weight system is used to retrieve potentially relevant items for an input user. These candidate items are then ranked and pruned in later stages of recommender…

信息检索 · 计算机科学 2023-08-08 Ahmed El-Kishky , Thomas Markovich , Kenny Leung , Frank Portman , Aria Haghighi , Ying Xiao

Reverse k nearest neighbor (RkNN) queries are fundamental in spatial databases, location-based analytics, and recommendation systems. Existing state-of-the-art techniques rely on spatial pruning supported by R-trees and their variants.…

数据库 · 计算机科学 2026-05-27 Zhengyang Bai , Peng Chen , Mohamed Wahib

Composed image retrieval is a type of image retrieval task where the user provides a reference image as a starting point and specifies a text on how to shift from the starting point to the desired target image. However, most existing…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Xingyu Yang , Daqing Liu , Heng Zhang , Yong Luo , Chaoyue Wang , Jing Zhang

Large-scale visual localization systems continue to rely on 3D point clouds built from image collections using structure-from-motion. While the 3D points in these models are represented using local image features, directly matching a query…

计算机视觉与模式识别 · 计算机科学 2024-01-01 Dror Aiger , André Araujo , Simon Lynen

An image retrieval method based on convolution neural network and dimension reduction is proposed in this paper. Convolution neural network is used to extract high-level features of images, and to solve the problem that the extracted…

计算机视觉与模式识别 · 计算机科学 2019-01-15 Zhihao Cao , Shaomin Mu , Yongyu Xu , Mengping Dong

K-nearest neighbor classification algorithm is one of the most basic algorithms in machine learning, which determines the sample's category by the similarity between samples. In this paper, we propose a quantum K-nearest neighbor…

量子物理 · 物理学 2023-04-03 Jing Li , Song Lin , Yu Kai , Gongde Guo