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检索条件"主题词=nonnegative sparse coding"
7 条 记 录,以下是1-10 订阅
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nonnegative sparse coding induced hashing for image copy detection
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NEUROCOMPUTING 2013年 105卷 81-89页
作者: Zou, Fuhao Feng, Hui Ling, Hefei Liu, Cong Yan, Lingyu Li, Ping Li, Dan Huazhong Univ Sci & Technol Sch Comp Sci & Technol Wuhan 430074 Peoples R China
Among the existing hashing methods, the Self-taught hashing (STH) is regarded as the state-of-the-art work. However, it still suffers the problem of semantic loss, which mainly comes from the fact that the original op... 详细信息
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Graph regularized nonnegative sparse coding using incoherent dictionary for approximate nearest neighbor search
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PATTERN RECOGNITION 2017年 70卷 75-88页
作者: Zhang, Yupei Xiang, Ming Yang, Bo Xi An Jiao Tong Univ Dept Comp Sci & Technol Xian Shaanxi Peoples R China
In this paper, we consider the problem of approximate nearest neighbor (ANN) retrieval with the method of sparse coding, which is a promising tool of discovering compact representation of high-dimensional data. A new ... 详细信息
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Target recognition in synthetic aperture radar images via non-negative matrix factorisation
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IET RADAR SONAR AND NAVIGATION 2015年 第9期9卷 1376-1385页
作者: Cui, Zongyong Cao, Zongjie Yang, Jianyu Feng, Jilan Ren, Hongliang Univ Elect Sci & Technol China Sch Elect Engn Chengdu 611731 Peoples R China Natl Univ Singapore Fac Engn Singapore 117575 Singapore Natl Univ Singapore Adv Robot Ctr Singapore 117575 Singapore
This study proposes a novel non-negative matrix factorisation (NMF) variant L-1/2-NMF after visualisation and analysis of the process of target recognition via NMF for synthetic aperture radar (SAR) images. NMF has be... 详细信息
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Screened Poisson Hyperfields for Shape coding
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SIAM JOURNAL ON IMAGING SCIENCES 2014年 第4期7卷 2558-2590页
作者: Guler, R. A. Tari, S. Unal, G. Sabanci Univ Fac Engn & Nat Sci TR-34956 Istanbul Turkey METU Dept Comp Engn TR-06800 Ankara Turkey
We present a novel perspective on shape characterization using the screened Poisson equation. We discuss that the effect of the screening parameter is a change of measure of the underlying metric space. Screening also... 详细信息
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SENSC Algorithm for Object & Scene Categorization
SENSC Algorithm for Object & Scene Categorization
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Conference on Multimedia on Mobile Devices and Multimedia Content Access - Algorithms and Systems V
作者: Liu, Bao-di Zhang, Yu-Jin Tsinghua Univ Dept Elect Engn Beijing 100084 Peoples R China
So far, the most popular method for object & scene categorization (such as Vector Quantization (VQ), sparse coding (SC)) transforms low-level descriptors (usually SIFT descriptors) into mid-level representations w... 详细信息
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Improvement of Visualization Method for Attack Patterns in Team Sports  10
Improvement of Visualization Method for Attack Patterns in T...
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Joint 10th International Conference on Soft Computing and Intelligent Systems (SCIS) / 19th International Symposium on Advanced Intelligent Systems (ISIS)
作者: Yamamoto, Risa Nakada, Yohei Meiji Univ Grad Sch Adv Math Sci Tokyo Japan
In this study, we improved the visualization method for attack patterns in team sports that was proposed in our previous work to visualize not only patterns of offense, but also patterns of defense. In the improved me... 详细信息
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Segmentation of Discriminative Patches in Human Activity Video
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ACM TRANSACTIONS ON MULTIMEDIA COMPUTING COMMUNICATIONS AND APPLICATIONS 2015年 第1期12卷 4-4页
作者: Zhang, Bo Conci, Nicola De Natale, Francesco G. B. Univ Trento Dept Informat Engn & Comp Sci Trento Italy
In this article, we present a novel approach to segment discriminative patches in human activity videos. First, we adopt the spatio-temporal interest points (STIPs) to represent significant motion patterns in the vide... 详细信息
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