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Generating different realistic humanoid motion

16th International Conference on Artificial Reality and Telexistence, ICAT 2006

作者： Li, Zhenbo Deng, Yu Li, Hua Key Lab. of Computer System and Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China National Research Center for Intelligent Computing Systems Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China Graduate University of Chinese Academy of Sciences Beijing 100039 China

ISBN: (纸本)3540497765

Different realistic humanoid motion can be used in vary situations in animation. It also plays an important role in virtual reality. In this paper, we propose a novel method to generate different realistic humanoid motion automatically. Firstly, eigenvectors of a motion sequence is computed using principle component analysis. The principle components are served as "virtual joints" in our system. The number of "virtual joints" can be used to control the realistic level of motions. After given the "virtual joints" number, the actual joints' parameters of new motion are computed using the selected "virtual joints". The experiments illuminate that this method has good ability to generate different realistic level motions. © 2006 Springer-Verlag Berlin/Heidelberg.

关键词： Principal component analysis

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NXG05-4: Fast Packet Classification using Group Bit Vector

NXG05-4: Fast Packet Classification using Group Bit Vector

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IEEE Globecom 2006

作者： Tong Liu Huawei Li Xiaowei Li Yinhe Han Advanced Test Technology Laboratory Key Laboratory of Computer System anChinesed Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing China

Packet classification is important in fulfilling the requirements of new services such as policy-based routing in next generation networks. In this paper, we propose a novel bit vector based two-dimensional packet classification algorithm called Group Bit Vector. The key feature of the proposed algorithm is its ability to set the length of the bit vector to perform AND operation (the operation bit vector) regardless of the size of rule databases by effectively aggregating the rules and constructing particular groups of a limited number of members. Moreover, the proposed algorithm avoids the problem of false matches, which may be brought by rules aggregation. Thus, the length of the operation bit vector can be adjusted to be suitable to the width of memories to improve the performance. Experimental results demonstrate the flexibility and effectiveness of the proposed algorithm.

关键词： Classification algorithms Databases Hardware Routing Next generation networking Protocols System testing computer architecture Electronic mail Performance analysis

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Network anomalous intrusion detection using Fuzzy-Bayes

Network anomalous intrusion detection using Fuzzy-Bayes

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4th IFIP TCI2 International Conference on Intelligent Information Processing, IIP 2006

作者： Adetunmbi, Adebayo O. Shi, Zhiwei Shi, Zhongzhi Adewale, Oiumide S. Key Laboratory of Intelligent Information Processing Institute of Computing Technology CAS Beijing 100080 China Department of Computer Science Federal University of Technology Ondo State Nigeria

Security of networking systems has been an issue since computer networl

ISBN: (纸本)9780387446394

Security of networking systems has been an issue since computer networl

关键词： Intrusion detection

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A framework for automated test generation in intelligent tutoring systems

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1st International Conference on Knowledge Science, Engineering and Management, KSEM 2006

作者： Suqin, Tang Cungen, Cao College of Computer Science and Information Technology Guangxi Normal University Guilin 541004 China Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China

ISBN: (纸本)3540370331

Intelligent tutoring systems have being extensively researched, and are viewed as cost-effective alternatives to traditional education. However, it has been long recognized that development of such systems is labor-intensive and time-consuming, and that a certain degree of automation in the development process is necessary. This paper proposes a framework for automating test generation - one of the key components in an intelligent tutoring system. The core of the framework is a domain conceptual model, a collection of testing goals, and a collection of test-generation rules, and the latter two are formulated from an analysis of various modes of error and on the basis of the domain conceptual model. © Springer-Verlag Berlin Heidelberg 2006.

关键词： Artificial intelligence

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Description of fuzzy first-order modal logic based on constant domain semantics

Description of fuzzy first-order modal logic based on consta...

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High-Power Diode Laser technology and Applications IV

作者： Zhang, Zaiyue Sui, Yuefei Cao, Cungen Department of Computer Science Jiangsu University of Science and Technology Zhenjiang Jiangsu 212003 China Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China

ISBN: (纸本)0819461466

As an extension of the traditional modal logic, the fuzzy first-order modal logic is discussed in this paper. A description of fuzzy first-order modal logic based on constant domain semantics is given, and a formal system of fuzzy reasoning based on the semantic information of models of first-order modal logic is established. It is also introduced in this paper the notion of the satisfiability of the reasoning system and some properties associated with the satisfiability are proved. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Formal logic

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Virtual machine-based invasion detection system for the virtual computing environment

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High technology Letters 2006年第4期12卷 379-384页

作者： Zeng, Yu Wang, Jie Sun, Ninghui Li, Jun Nie, Hua Research and Development Center for National Intelligence Computing System Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China Key Laboratory of Computer System and Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China

Under visualization idea based on large-scale dismantling and sharing, the implementing of network interconnection of calculation components and storage components by loose coupling, which are tightly coupling in traditional server, achieves computing capacity, storage capacity and service capacity distribution according to need in application-level. Under the new server model, the segregation and protection of user space and system space as well as the security monitoring of virtual resources are the important factors of ultimate security guarantee. This article presents a large-scale and expansible distributed invasion detection system of virtual computing environment based on virtual machine. The system supports security monitoring management of global resources and provides uniform view of security attacks under virtual computing environment, thereby protecting the user applications and system security under capacity services domain.

关键词： Virtual reality

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The graph-theoretical properties of partitions and information entropy

The graph-theoretical properties of partitions and informati...

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High-Power Diode Laser technology and Applications IV

作者： Cao, Cungen Sui, Yuefei Xia, Youming Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China Department of Computer Science Yunnan Normal University Kunming 650092 Yunnan China

ISBN: (纸本)0819461466

The information entropy, as a measurement of the average amount of information contained in an information system, is used in the classification of objects and the analysis of information systems. The information entropy of a partition is non-increasing when the partition is refined, and is related to rough sets by Wong and Ziarko. The partitions and information entropy have some graph-theoretical properties. Given a non-empty universe U, all the partitions G on U are taken as nodes, and a relation V between partitions are defined and taken as edges. The graph obtained is denoted by (G, V), which represents the connections between partitions on U. According to the values of the information entropy of partitions, a directed graph (G, V&rarr) is defined on (G, V). It will be proved that there is a set of partitions with the minimal entropy;and a set of partitions with the maximal entropy;and the entropy is non-decreasing on any directed pathes in (G, V) from a partition with the minimal entropy to one of the partitions with the maximal entropy. Hence, in (G, V), the information entropy of partitions is represented in a clearly structured way. © Springer-Verlag Berlin Heidelberg 2005 Information systems, information entropy, classification, partitions.

关键词： Information analysis

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A virtual machine-based invasion detection system for the virtual computing environment

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High technology Letters 2006年第4期12卷 379-384页

作者：曾宇 Wang Jie Sun Ninghui Li Jun Nie Hua Research and Development Center for National Intelligence Computing System Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 P.R. China Key Laboratory of Computer System and Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 P.R. China

Under virtualization idea based on large-scale dismantling and sharing, the implementing of network interconnection of calculation components and storage components by loose coupling, which are tightly coupling in traditional server, achieves computing capacity, storage capacity and service capacity distri- bution according to need in application-level. Under the new server model, the segregation and protection of user space and system space as well as the security monitoring of virtual resources are the important factors of ultimate security guarantee. This article presents a large-scale and expansible distributed invasion detection system of virtual computing environment based on virtual machine. The system supports security monitoring management of global resources and provides uniform view of security attacks under virtual computing environment, thereby protecting the user applications and system security under capacity services domain.

关键词： virtual computing environment oriented virtual machine-based invasion detection system （VIDS） capacity services computing

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Locality and Parallelism Optimization for Dynamic Programming Algorithm in Bioinformatics

Locality and Parallelism Optimization for Dynamic Programmin...

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Supercomputing Conference

作者： Guangming Tan Shengzhong Feng Ninghui Sun Graduate School of Chinese Academy of Sciences China Key Laboratory of Computer System and Architecture Institute of Computing Technology Chinese Academy and Sciences China

Dynamic programming has been one of the most efficient approaches to sequence analysis and structure prediction in biology. However, their performance is limited due to the drastic increase in both the number of biological data and variety of the computer architectures. With regard to such predicament, this paper creates excellent algorithms aimed at addressing the challenges of improving memory efficiency and network latency tolerance for nonserial polyadic dynamic programming where the dependences are nonuniform. By relaxing the nonuniform dependences, we proposed a new cache oblivious scheme to enhance its performance on memory hierarchy architectures. Moreover we develop and extend a tiling technique to parallelize this nonserial polyadic dynamic programming using an alternate block-cyclic mapping strategy for balancing the computational and memory load, where an analytical parameterized model is formulated to determine the tile volume size that minimizes the total execution time and an algorithmic transformation is used to schedule the tile to overlap communication with computation to further minimize communication overhead on parallel architectures. The numerical experiments were carried out on several high performance computer systems. The new cache-oblivious dynamic programming algorithm achieve 2-10 speedup and the parallel tiling algorithm with communication-computation overlapping shows a desired potential for fine-grained parallel computing on massively parallel computer systems

关键词： Dynamic programming Heuristic algorithms Bioinformatics Concurrent computing Parallel processing computer architecture Tiles Sequences Delay Memory architecture

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A Tamper-resistance key Pre-distribution Scheme for Wireless Sensor Networks

A Tamper-resistance Key Pre-distribution Scheme for Wireless...

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International Conference on Grid and Cooperative computing Workshops (GCCW)

作者： Lei Xie Hongsong Zhu Yongjun Xu Yuefei Zhu Institute of Information Engineering Information and Engineering University Zhengzhou China Advanced Test Technology Laboratory Key Laboratory of Computer System and Architecture Institute of Computing Technology Chinese Academy and Sciences Beijing China

Wireless sensor network (WSN), which is integrated with many technologies such as sensor, embedded computing, wireless communication and distributed information processing etc., is becoming an important branch of ubiquitous computing research. WSN is composed of a large number of distributed sensor nodes, so to ensure the sensor nodes dependable is essential to security of whole network. By introducing a lightweight tamper-resistance design based on security co-processor into sensor nodes, this paper loosens up the security assumptions of WSN, and redefines the objectives of WSN security. Based on such secure infrastructure, the paper also proposes a concise and effective key pre-distribution scheme, in which each node needs to send only one cluster key announcement message and cluster key net can be set up within neighborhood

关键词： Wireless sensor networks Pervasive computing Ubiquitous computing Information security computer networks computer architecture Sensor arrays Design engineering Laboratories Embedded computing

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