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检索条件"机构=In formation School and Key Laboratory of Data Engineering and Knowledge Engineering"
815 条 记 录,以下是721-730 订阅
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Global Top-k Aggregate Queries Based on X-tuple in Uncertain database
Global Top-k Aggregate Queries Based on X-tuple in Uncertain...
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International Conference on Advanced Information Networking and Applications Workshops (AINAW)
作者: Dexi Liu Changxuan Wan Naixue Xiong Jong Hyuk Park Sang-Soo Yeoe School of Information Technology Jiangxi Key Laboratory of Data and Knowledge Engineering Jiangxi University of Finance and Economics Nanchang China Department of Computer Science Georgia State University Atlanta GA USA Department of Computer Science and Engineering Seoul National University of Technology Seoul South Korea Division of Computer Engineering Mokwon University Daejeon South Korea
A Top-k aggregate query, which is a powerful technique when dealing with large quantity of data, ranks groups of tuples by their aggregate values and returns k groups with the highest aggregate values. However, compar... 详细信息
来源: 评论
Studies and implementation of the trusted process mechanism in a secure operating system
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Qinghua Daxue Xuebao/Journal of Tsinghua University 2010年 第SUPPL. 1期50卷 1547-1553页
作者: Zhang, Chongbin Li, Fengjuan Liang, Bin China Information Technology Security Evaluation Center Beijing 100085 China Key Laboratory of Data Engineering and Knowledge Engineering of Ministry of Education School of Information Renming University of China Beijing 100872 China
The trusted process mechanism is an important part of the operating system security mechanism, but there is no uniform definition of the trusted process and there are some limitations in understanding its fundamental ... 详细信息
来源: 评论
Median query research in wireless sensor networks
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Tien Tzu Hsueh Pao/Acta Electronica Sinica 2010年 第2A期38卷 133-137页
作者: Wu, Zhong-Bo Zhang, Hui Chen, Hong Information School Renmin University of China Beijing 100872 China Key Laboratory of Data Engineering and Knowledge Engineering Ministry of Education Beijing 100872 China School of Mathematics and Computer Science Xiangfan University Xiangfan Hubei 441053 China
Poor quality and harsh condition can result in faulty and outlier data in sampling data of sensor nodes. So we need median query to reflect average level of monitoring region. First, we put forward HMA algorithm. Seco... 详细信息
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Approximation algorithm for constructing data aggregation trees for wireless sensor networks
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中国高等学校学术文摘·计算机科学 2009年 第4期3卷 524-534页
作者: Deying LI Jiannong CAO Qinghua ZHU Key Laboratory of Data Engineering and Knowledge Engineering School of InformationRenmin University of ChinaBeijing 100872China Internet and Mobile Computing Lab Department of ComputingHong Kong Polytechnic UniversityHong KongChina
This paper considers the problem of constructing data aggregation trees in wireless sensor networks (WSNs)for a group of sensor nodes to send collected information to a single sink *** data aggregation tree contains t... 详细信息
来源: 评论
A Review-Based Reputation Evaluation Approach for Web Services
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Journal of Computer Science & Technology 2009年 第5期24卷 893-900页
作者: 李海华 杜小勇 Member 田萱 Key Laboratory of Data Engineering and Knowledge Engineering (Renmin University of China) MOE Beijing 100872 China School of Information Renmin University of China Beijing 100872 China School of Information Science & Technology Beijing Forestry University Beijing 100083 China
Web services are commonly perceived as an environment of both offering opportunities and threats. In this environment, one way to minimize threats is to use reputation evaluation, which can be computed, for example, t... 详细信息
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Two Novel Semantics of Top-k Queries Processing in Uncertain database
Two Novel Semantics of Top-k Queries Processing in Uncertain...
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International Conference on Computer and Information Technology (CIT)
作者: Dexi Liu Changxuan Wan N. Xiong Laurence T. Yang Lei Chen School of Information Technology Jiangxi Key Laboratory of Data and Knowledge Engineering Jiangxi University of Finance and Economics Nanchang China Department of Computer Science Georgia State University Atlanta GA USA Department of Computer Science Saint Francis Xavier University Antigonish NS Canada Department of Computer Science HK University of Science and Technology Hong Kong China
Top-k query is a powerful technique in uncertain databases because of the existence of exponential possible worlds, and it is necessary to combine score and confidence of tuples to derive top k answers. Different sema... 详细信息
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Lightweight data mining based database system self-optimization: A case study
Lightweight data mining based database system self-optimizat...
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Joint International Conference on Advances in data and Web Management, APWeb/WAIM 2009
作者: Qin, Xiongpai Cao, Wei Wang, Shan Key Laboratory of Data Engineering and Knowledge Engineering School of Information Renmin University of China MOE Beijing 100872 China
With the system becoming more complex and workloads becoming more fluctuating, it is very hard for DBA to quickly analyze performance data and optimize the system, self optimization is a promising technique. A data mi... 详细信息
来源: 评论
Simulation of main memory database parallel recovery  09
Simulation of main memory database parallel recovery
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2009 Spring Simulation Multiconference, SpringSim 2009
作者: Qin, Xiongpai Cao, Wei Wang, Shan Key Laboratory of Data Engineering and Knowledge Engineering School of Information Renmin University of China MOE Beijing100872 China
The paper describes the details of using J-SIM in main memory database parallel recovery simulation. In update intensive main memory database systems, I/O is still the dominant performance bottleneck. A proposal of pa... 详细信息
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COP: Privacy-preserving multidimensional partition in DAS paradigm  09
COP: Privacy-preserving multidimensional partition in DAS pa...
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2009 International Conference on Extending database Technology/International Conference on database Theory Workshops, EDBT/ICDT '09
作者: Wang, Jieping Du, Xiaoyong Wang, Haocong Yang, Pingping Key Laboratory of Data Engineering and Knowledge Engineering MOE China School of Information Renmin University of China Beijing 100872 China
database-as-a-Service (DAS) is an emerging database management paradigm wherein partition based index is an effective way to querying encrypted data. However, previous research either focuses on one-dimensional partit... 详细信息
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Fault-tolerant routing: κ-inconnected many-to-one routing in wireless networks
Fault-tolerant routing: κ-inconnected many-to-one routing i...
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3rd International Conference on Combinatorial Optimization and Applications, COCOA 2009
作者: Li, Deying Zhu, Qinghua Yang, Huiqiang School of Information Renmin University of China Beijing China Key Laboratory of Data Engineering and Knowledge Engineering Renmin University of China MOE China
This paper addresses the problem of fault-tolerant many-to-one routing in static wireless networks with asymmetric links, which is important in both theoretical and practical aspects. The problem is to find a minimum ... 详细信息
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