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检索条件"机构=Key Laboratories of Data Engineering and Knowledge Engineering"
1122 条 记 录,以下是1091-1100 订阅
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Ontology hierarchies matching by lattices alignment
Ontology hierarchies matching by lattices alignment
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2nd International Workshop on Ontology Matching, OM-2007 - Collocated with the 6th International Semantic Web Conference, ISWC-2007 and the 2nd Asian Semantic Web Conference, ASWC-2007
作者: He, Hu Du, Xiaoyong School of Information Renmin University of China 100872 Beijing China Key Lab. of Data and Knowledge Engineering MOE 100872 Beijing China
Ontology matching determines the correspondences between concepts and relations of related ontologies. In this paper, we put forward an ontology hierarchies matching approach based on lattices alignment. The proposed ... 详细信息
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Building bilingual ontology from WordNet and Chinese classified thesaurus
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2nd International Conference on knowledge Science, engineering and Management, KSEM 2007
作者: He, Hu Xiaoyong, Du School of Information Renmin University of China 100872 Beijing China Key Lab. of Data and Knowledge Engineering MOE 100872 Beijing China
Both WordNet and Chinese Classified Thesaurus(CCT) are widely used in information retrieval and management systems. In this paper we propose a novel approach for building bilingual ontologies based on these existing k... 详细信息
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Finding top-k min-cost connected trees in databases
Finding top-k min-cost connected trees in databases
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23rd International Conference on data engineering, ICDE 2007
作者: Ding, Bolin Yu, Jeffrey Xu Wang, Shan Qin, Lu Zhang, Xiao Lin, Xuemin Chinese University of Hong Kong Hong Kong Key Laboratory of Data Engineering and Knowledge Engineering MOE of China Renmin University of China China University of New South Wales NICTA Australia
It widely realized that the integration of database and information retrieval techniques will provide users with a wide range of high quality services. In this paper, we study processing an l-keyword query, p1, p2, , ... 详细信息
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J+-tree: A new index structure in main memory
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12th International Conference on database Systems for Advanced Applications, DASFAA 2007
作者: Luan, Hua Du, Xiaoyong Wang, Shan Ni, Yongzhi Chen, Qiming School of Information Renmin University of China Beijing China Key Laboratory of Data Engineering and Knowledge Engineering Renmin University of China MOE Beijing China HP Labs. China Beijing China
As the memory capacity increases and the hardware becomes cheaper, main memory databases (MMDB) have come true and been used in more and more applications, because they can provide better response time and throughputs... 详细信息
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An approximate sequential pattern mining approach over data stream based on Levenshtein-Automata
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Journal of Computational Information Systems 2007年 第5期3卷 2025-2030页
作者: Li, Haifeng Chen, Hong School of Information Renmin University of China Beijing 100872 China Key Laboratory of Data Engineering and Knowledge Engineering China
Sequential pattern mining is an important method in data mining. Traditional mining algorithms are not adapted to the fast, unlimited, continuous and dynamic data stream because they are multiple pass in scanning data... 详细信息
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Energy-efficient approximate skyline computation in sensor networks
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Journal of Computational Information Systems 2007年 第5期3卷 1821-1826页
作者: Xie, Tingting Lai, Yongxuan Chen, Hong School of Information Renmin University of China Beijing 100872 China Key Laboratory of Data Engineering and Knowledge Engineering China
The skyline query is frequently used to find a set of dominating data points (called skyline points) in a multidimensional dataset It is one of the most important query methods for database, datastream, P2P networks. ... 详细信息
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Computing Degree of Association Based on Different Semantic Relationships
Computing Degree of Association Based on Different Semantic ...
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International Workshop on database and Expert Systems Applications
作者: Xuan Tian Xiaoyong Du Haihua Li School of Information Key Laboratory of Data Engineering and Knowledge Engineering MOE Renmin University of China Beijing China
In domain ontologies, there is usually no weight assigned to the link between two concepts. This has been considered as one of main obstacles in using ontologies. Semantic Association (SA) is to depict the correlation... 详细信息
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Modeling User_s Cognitive Structure in Contextual Information Retrieval
Modeling User_s Cognitive Structure in Contextual Informatio...
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International Conference on Fuzzy Systems and knowledge Discovery (FSKD)
作者: Xuan Tian Xiaoyong Du He Hu Haihua Li School of Information Key Laboratory of Data Engineering and Knowledge Engineering MOE Renmin University of China Beijing China
In contextual information retrieval, the retrieval of information depends on the time and place of submitting query, history of interaction, task in hand, and many other factors that are not given explicitly but impli... 详细信息
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The Approximation Operators Within Formal Contexts
The Approximation Operators Within Formal Contexts
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International Conference on Multimedia and Ubiquitous engineering (MUE)
作者: Ming-Wen Shao Jiangxi Key Laboratory of Data and Knowledge Engineering Jiangxi University of Finance and Economics Nanchang Jiangxi China
In this paper, based on concept lattices and dual concept lattices, we introduced a pair of rough set approximation operators within formal contexts. The proposed approximations operators don't require the equival... 详细信息
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Energy-efficient Robust data-centric Storage in Wireless Sensor Networks
Energy-efficient Robust Data-centric Storage in Wireless Sen...
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第三届IEEE无线通讯、网络技术暨移动计算国际会议
作者: Yongxuan Lai Yufeng Wang Hong Chen School of Information Renmin University of China Beijing P.R.China Key Laboratory of Data Engineering and Knowledge Engineering MOE
In this paper, we propose a new Dynamic datacentric Storage (DDS) mechanism in wireless sensor network. DDS, which is aware of the data distributions of the network, dynamically adjusts the mappings from sensor readin... 详细信息
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