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检索条件"机构=Computer Virtual Technology and System Integration Laboratory of Hebei Province"
206 条 记 录,以下是181-190 订阅
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A novel grouping aggregation algorithm for online analytical processing
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2012 National Conference on Information technology and computer Science, CITCS 2012
作者: Chen, Wei Liu, Yongshan Wang, Ning College of Information Science and Engineering Yanshan University Qinhuangdao China Key Laboratory for Computer Virtual Technology and System Integration of HeBei Province Qinhuangdao China
As regard to improve the efficiency of grouping aggregation calculation, the data is compressed by using binary encoding, and the dimension hierarchical grouping attribute set encodings of each dimension table are cal... 详细信息
来源: 评论
Multi-resolution terrain rendering seamlessly by function curve fitting
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Journal of Computational Information systems 2012年 第24期8卷 10399-10409页
作者: Nie, Junlan Guo, Dongliang Kong, Lingfu Wang, Yanfen The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Yanshan University Qinhuangdao 066004 China
During the process of real-time multi-resolution terrain rendering, avoiding cracks between LOD (Level of Detail) has always been a tedious task that requires extra complicated handling. In this paper, we propose a no... 详细信息
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Kainate induced gamma oscillations and spike-gamma relationship analysis
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Advances in Information Sciences and Service Sciences 2012年 第21期4卷 606-612页
作者: Wen, Dong Peng, Ce Li, Xiaoli Lu, Chengbiao The Key Laboratory for Computer Virtual Technology System Integration of HeBei Province Yanshan University Qinhuangdao Hebei 066004 China Institue of Electrical Engineering Yanshan University Qinhuangdao Hebei 066004 China
Neuronal oscillations in the gamma frequency range and spikes have been reported in many cortical areas in the information processing, but the role of spikes play in cortical processing remains unclear. The aim of thi... 详细信息
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An algorithm based on compressed tree and bit vector table for mining frequent patterns on uncertain data streams
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Journal of Convergence Information technology 2012年 第20期7卷 389-398页
作者: Dong, Jun Zhang, Yuanyuan Song, Wei Ren, Jiadong College of Information Science and Engineering Yanshan University Qinhuangdao Hebei 066004 China The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Qinhuangdao City 066004 China
Most of algorithms based on tree structure for mining frequent pattern on uncertain data streams always store a large number of tree nodes, and record the corresponding information of data streams which can cause mass... 详细信息
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Mining weighted closed sequential patterns by memory indexing
International Journal of Digital Content Technology and its ...
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International Journal of Digital Content technology and its Applications 2012年 第19期6卷 432-440页
作者: Ren, Jiadong Li, Shuo Dong, Jun College of Information Science and Engineering Yanshan University Qinhuangdao Hebei 066004 China The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Qinhuangdao City 066004 China
There exist two major problems in weighted closed sequential patterns mining. The first is that only the weights of items are considered and they ignore the time-interval information of data elements during the mining... 详细信息
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Subspace clustering based on finding effective spaces
International Journal of Digital Content Technology and its ...
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International Journal of Digital Content technology and its Applications 2012年 第22期6卷 580-589页
作者: Ren, Jiadong Liu, Zhigang Dong, Jun College of Information Science and Engineering Yanshan University Qinhuangdao Hebei 066004 China Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Qinhuangdao City 066004 China
In high-dimensional data space, because the data is sparse inherently, clusters tend to exist in different subspaces, which makes the traditional methods no longer suitable for use. In this paper, we present SCFES, a ... 详细信息
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virtual grid-based clustering of uncertain data on vulnerability database
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Journal of Convergence Information technology 2012年 第20期7卷 429-438页
作者: Dong, Jun Cao, Mengmeng Huang, Guoyan Ren, Jiadong College of Information Science and Engineering Yanshan University Qinhuangdao 066004 China The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Qinhuangdao 066004 China
Most existing vulnerability taxonomy classifies vulnerabilities by their idiosyncrasies, weaknesses, flaws and faults et al. The disadvantage of the taxonomy is that the classification standard is not unified and ther... 详细信息
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An energy-efficient routing algorithm of zigbee network
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Journal of Computational Information systems 2012年 第23期8卷 9873-9879页
作者: Liu, Yongshan Chen, Wei Shang, Xuehui Lv, Yongteng Han, Yuanyuan Liu, Chang College of Information Science and Engineering Yanshan University Qinhuangdao 066004 China The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Qinhuangdao 066004 China
As regard to the case of extending the lifetime of zigbee network, the defination of node's boundary is proposed. First, all the information for node's boundary is stored when zigbee network is built. Then, th... 详细信息
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A high dimensional data clustering algorithm based on hypergraph
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Journal of Computational Information systems 2012年 第23期8卷 9839-9846页
作者: Liu, Yongshan Chen, Wei Shang, Xuehui Lv, Yongteng Han, Yuanyuan Liu, Chang College of Information Science and Engineering Yanshan University Qinhuangdao 066004 China The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Qinhuangdao 066004 China
High dimensional data clustering is an important issue for data mining. Firstly, the records in the dataset are mapped to the vertices of hypergraph, the hyperedges of hypergraph are composed of the vertices which hav... 详细信息
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Subspace clustering over high-dimensional data stream based on grid density and attribute relativity
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Advances in Information Sciences and Service Sciences 2012年 第17期4卷 91-99页
作者: Huang, Guoyan Miao, Liyun Ren, Jiadong College of Information Science and Engineering Yanshan University Qinhuangdao City 066004 China The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Qinhuangdao City 066004 China
The traditional clustering algorithms often fail to detect meaningful clusters in high-dimensional data space. To improve the above shortcoming, we propose GDRH-Stream, a clustering method based on the attribute relat... 详细信息
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