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International Conference on Natural Computation (ICNC)

作者： Zongmin Li Xiuping Men Yujie Liu Hua Li Department of Computer Science University of North Carolina Charlotte NC USA School Of Computer Science And Communication Engineering China University of Petroleum Shandong China Key Laboratory Intelligent Information Processing Institute of Computing Technology Chinese Academy and Sciences Beijing China

This paper proposes a novel methodology based on V-system polynomials for content-based search and retrieval of 3D objects. The V-system is composed by piecewise polynomials, and is capable of exactly describing the geometric information expressed by the popularly and widely used spline curves and surface. We define rotation invariant moments-v-system moment by combining V-system polynomials with spherical harmonics. After preprocessing for translation and scale invariance, the spherical extension is used as input for V-system moments and the values of obtained coefficients are considered as components of the feature vector. We evaluate on the Princeton Shape Benchmark, the proposed descriptors regarding computational aspects and shape retrieval performance. The-performance of the proposed method is compared to some previous approaches by means of precision/recall tests. Generally, results show that the new approach introduces improvements in the SD model retrieval process.

关键词： Shape Content based retrieval Image retrieval Polynomials Information retrieval Solid modeling computer science Feature extraction Noise robustness Petroleum

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Discovering Protein Complexes from Protein-Protein Interaction Data by Local Cluster Detecting Algorithm

Discovering Protein Complexes from Protein-Protein Interacti...

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International Conference on Fuzzy Systems and Knowledge Discovery (FSKD)

作者： Juan Liu Bin Liu Deyi Li School of Computer Wuhan University of China Wuhan China Wuhan University Wuhan Hubei CN State Key Laboratory of Software Engineering Wuhan University of China Wuhan China Institute of Computing Technology Chinese Academy and Sciences Beijing China

Proteins are usually grouped into complexes to perform functional tasks in organisms. So discovery of protein complexes is critical to understand principles of cellular organization and function. Recently high-throughput techniques have produced large amount of protein-protein interaction (PPI) data, which make it possible to detect protein complexes automatically from PPI data by using computational method. In this paper, we propose a local cluster detection algorithm (LCDA) to find the protein complexes. Super to other methods existed, LCDA is able to find both non-overlapping and overlapping clusters. The experiment results show that LCDA can detect protein complexes with very high accuracies.

关键词： Clustering algorithms Protein engineering Nuclear magnetic resonance Organisms Complex networks Software algorithms Software engineering computers Detection algorithms Crystallography

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Agent Grid Based Enterprise Application Integration

Agent Grid Based Enterprise Application Integration

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International Conference on Natural Computation (ICNC)

作者： Maoguang Wang Zhongzhi Shi Li Zheng Fen Lin Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy and Sciences Beijing China Graduate University of Chinese Academy of Sciences Beijing China School of Computer Science and Technology China University of Mining and Technology Xuzhou China Key Laboratory of Intelligent Information Processing Chinese Academy of Sciences Beijing China Chinese Academy of Sciences China Graduate University of CAS China

Due to the increasing software complexity, how to integrate the legacy data resources and systems is a big challenge for the enterprise. This paper makes full use of agent technologies to establish an agent grid intelligent platform for enterprise heterogeneous system integration. The agent grid intelligent platform adopts a hierarchical integration model and middleware to provide efficient integration capability for different application systems. Finally, this paper introduces the grid based city emergency interaction system to illustrate the AGrIP practical system integration.

关键词： Intelligent agent Application software Middleware Collaborative work Collaboration Connectors computer science Laboratories Information processing Cities and towns

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High Performance General-Purpose Microprocessors： Past and Future

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Journal of computer Science & technology 2006年第5期21卷 631-640页

作者：胡伟武侯锐肖俊华章隆宾 Key Laboratory of Computer System and Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 P.R. China

It can be observed from looking backward that processor architecture is improved through spirally shifting from simple to complex and from complex to simple. Nowadays we are facing another shifting from complex to simple, and new innovative architecture will emerge to utilize the continuously increasing transistor budgets. The growing importance of wire delays, changing workloads, power consumption, and design/verification complexity will drive the forthcoming era of Chip Multiprocessors （CMPs）. Furthermore, typical CMP projects both from industries and from academics are investigated. Through going into depths for some primary theoretical and implementation problems of CMPs, the great challenges and opportunities to future CMPs are presented and discussed. Finally, the Godson series microprocessors designed in China are introduced.

关键词： high performance general-purpose microprocessor instruction level parallelism data level parallelism thread level parallelism chip multiprocessors Godson processor

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Oil spill detection from thermal anomaly using ASTER data in Yinggehai of Hainan, China

Oil spill detection from thermal anomaly using ASTER data in...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Guoyin Cai Jian Wu Yong Xue Wei Wan Xiaoxia Huang School of Geomatics and Urban Information Beijing University of Civil Engineering and Architecture Beijing China Beijing Information Technology College Beijing China Department of Computing London Metropolitan University London UK Institute of Remote Sensing Applications Chinese Academy of Sciences 3State Key Laboratory of Remote Sensing Science Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University Beijing China

The detection of oil spill is very important for the oil exploration. Remote sensing technology is one of the methods to detect the potential oil basin, especially in a large region. High resolution satellite images can be used as an approach of early oil exploration because its visualized, continuous and macroscopical characteristics. In this paper, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data were used to detect the possible oil regions in the Yinggehai area of Hainan Province, China from thermal anomaly including sea surface temperature and apparent thermal inertia. By comparing with the drilling materials, our results show that the area with oil spill has a lower temperature and higher thermal inertia values than the surrounding areas. It indicates that our derived sea surface temperature and apparent thermal inertia anomaly just reflect the above mentioned status and the method can be used to detect the potential oil basin.

关键词： Petroleum Ocean temperature Sea surface Remote sensing Space technology Image resolution Satellite broadcasting Data visualization Reflection Radiometry

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Parallel Error Detection for Leading Zero Anticipation

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Journal of computer Science & technology 2006年第6期21卷 901-906页

作者：张戈胡伟武齐子初 Key Laboratory of Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 P.R. China Graduate University of the Chinese Academy of Sciences Beijing 100039 P.R. China

The algorithm and its implementation of the leading zero anticipation （LZA） are very vital for the performance of a high-speed floating-point adder in today＇s state of art microprocessor design. Unfortunately, in predicting ＂shift amount＂ by a conventional LZA design, the result could be off by one position. This paper presents a novel parallel error detection algorithm for a general-case LZA. The proposed approach enables parallel execution of conventional LZA and its error detection, so that the error-indicatlon signal can be generated earlier in the stage of normalization, thus reducing the critical path and improving overall performance. The circuit implementation of this algorithm also shows its advantages of area and power compared with other previous work.

关键词： computer arithmetic floating-point addition leading zero anticipation

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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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2006 ACM/IEEE Conference on Supercomputing, SC'06

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

ISBN: (纸本)0769527000

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. © 2006 IEEE.

关键词： Dynamic programming

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Study on Parallel computing

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Journal of computer Science & technology 2006年第5期21卷 665-673页

作者：陈国良孙广中张云泉莫则尧 Anhui Province-MOST Key Co-Lab of High Performance Computing and Its Applications Department of Computer Science and Technology University of Science and Technology of China Hefei 230027 P.R. China Laboratory of Parallel Computing Institute of Software Chinese Academy of Sciences Beijing 100080 P.R. China Laboratory of Computational Physics Institute of Applied Physics and Computational Mathematics Beijing 100088 P.R. China

In this paper, we present a general survey on parallel computing. The main contents include parallel computer system which is the hardware platform of parallel computing, parallel algorithm which is the theoretical base of parallel computing, parallel programming which is the software support of parallel computing. After that, we also introduce some parallel applications and enabling technologies. We argue that parallel computing research should form an integrated methodology of ＂architecture algorithm programming application＂. Only in this way, parallel computing research becomes continuous development and more realistic.

关键词： parallel computing parallel architecture parallel programming parallel algorithm parallel application

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A multi-criteria programming model for intelligent tutoring planning

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10th International Conference on Knowledge-Based Intelligent Information and Engineering Systems, KES 2006

作者： Ruihong, Shi Peng, Lu Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences China Graduate School Chinese Academy of Sciences China College of Computer Science and Technology Beijing Institute of Technology China

ISBN: (纸本)3540465359

This paper proposed a practical approach to personalized tutoring planning by exploiting existing tutoring resources (e.g., a book, a courseware). More exactly, it does not build an instructional course from scratch - from the domain curriculum, as most Intelligent Tutoring Systems (ITS) do. Instead, information in the curriculum model is used as metadata, together with other metadata, to describe tutoring resources. Given a learning requirement (learning objectives and/or constraints), it finds out the most appropriate tutoring resource(s) and proposes a proper learning sequence of them. Based on the proposed fuzzy instructional model and learner model, the tutoring planning problem is defined as a multi-criteria programming (MCP) model. © Springer-Verlag Berlin Heidelberg 2006.

关键词： computer programming

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Generating different realistic humanoid motion

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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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