Due to fast growth of video camera market, referring videos in sports training has been used as one of the most effective methods for improving their performance because athletes or coaches can analyze their performan...
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ISBN:
(纸本)9781424452910
Due to fast growth of video camera market, referring videos in sports training has been used as one of the most effective methods for improving their performance because athletes or coaches can analyze their performance objectively. Adopting the advices from coaches, athletes can correct their wrong habits in their performance instantly. Although the videos from multiple cameras in multiple angles include much useful information, it is very hard for them to extract the information from the videos during their limited training time. Introducing an actual example of the training field where multiple cameras are used, this paper is focused on development of new video synthesizing software that generates a single video from the multiple videos, applying a sequence of commands to control the synthesis. this paper also describes an optimization technique to perform the video synthesis fast that applies parallel processing on a multicore processor to invoke multiple threads for video synthesis concurrently. Performance evaluation shows validity of the optimization technique.
the reliable and fault tolerant computers are key to the success to aerospace, and communication industries. Designing a reliable digital system, and detecting and repairing the faults are challenging tasks in order f...
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ISBN:
(纸本)9780769536422
the reliable and fault tolerant computers are key to the success to aerospace, and communication industries. Designing a reliable digital system, and detecting and repairing the faults are challenging tasks in order for the digital system to operate without failures for a given period of time. the paper presents a new and systematic software engineering approach of performing fault diagnosis parallel and distributedcomputing. the purpose of the paper would be to demonstrate a method to build a fault diagnosis for a parallel and distributedcomputing. the paper chooses a model posed a tremendous challenge to the user for fault analysis. the model is the classic PMC model that happens to be a parallel and distributedcomputing. the paper would also show a method for building an optimal inference engine by obtaining sub graphs that also preserve the necessary and sufficient conditions of the model. Coin words: parallel and distributedcomputing, Artificial Intelligence
It is the purpose of this paper to present some practical security issues related to National High Performance computing Environment (NHPCE), the computational grid. Based on the security requirements of NHPCE we disc...
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ISBN:
(纸本)0780378407
It is the purpose of this paper to present some practical security issues related to National High Performance computing Environment (NHPCE), the computational grid. Based on the security requirements of NHPCE we discuss some existing distributed security technologies we used and point out why they are not enough. then the key issues of NHPCE and its corresponding solutions to these problems are analyzed. Lastly we put forward our final solution.(8).
Formal specification are indispensable for computer-aided verification and testing of communication protocols. However, a large number of the practical protocols have only informal specifications, mostly in English. T...
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ISBN:
(纸本)9780769530499
Formal specification are indispensable for computer-aided verification and testing of communication protocols. However, a large number of the practical protocols have only informal specifications, mostly in English. there are no general procedures to derive formal specifications from such informal specification. In this paper we model Session Initiation Protocol (SIP) by parameterized extended finite state machines. We also provide insights gained in the derivation of the formal specification.
Workflow management involves the whole workflow development lifecycle from the definition of the workflow, through its implementation and evolution over the life of the business it supports. distributed object managem...
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ISBN:
(纸本)0818654007
Workflow management involves the whole workflow development lifecycle from the definition of the workflow, through its implementation and evolution over the life of the business it supports. distributed object management (DOM) involves a host of capabilities to support the inter-operation of a variety of computer systems and applications including legacy systems. this paper focuses on the transactional workflows which is the advanced transaction technology required to (1) ensure the reliability of tasks in a workflow and the correctness and reliability of concurrent workflows, and (2) support the specification and management of extended transactions models. Also discussed is the research and development at GTE Laboratories to produce a Transaction Specification and Management Environment together withthe integration of DOM and TSE technologies.
Improved FCM algorithm based on genetic algorithm is used to extract user needs in mobile cloud computing. By using its characteristics of fast clustering, users can be divided into the same category with similar attr...
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ISBN:
(纸本)9781509050819
Improved FCM algorithm based on genetic algorithm is used to extract user needs in mobile cloud computing. By using its characteristics of fast clustering, users can be divided into the same category with similar attributes and behavior patterns, and then use the similarity recommendation algorithm, which makes the similar user requests can be quickly responded. this algorithm (GAFCM-CF) is proposed in this paper to solve the problem of mobile cloud user attribute collection and user request processing in small and medium network. At the same time, this paper compares the simulation experiment withthe traditional MIN-MIN scheduling algorithm, and verifies the effectiveness and efficiency of the algorithm.
the conventional unified parallel computation model becomes more and more complicated which has weak pertinence and little guidance for each parallelcomputing phase. therefore, a general layered and heterogeneous ide...
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ISBN:
(纸本)9780769548791
the conventional unified parallel computation model becomes more and more complicated which has weak pertinence and little guidance for each parallelcomputing phase. therefore, a general layered and heterogeneous idea for parallel computation model research was proposed in this paper. the general layered heterogeneous parallel computation model was composed of parallel algorithm design model, parallel programming model, parallel execution model, and each model correspond to the three computing phases respectively. the properties of each model were described and research spots were also given. In parallel algorithm design model, an advanced language was designed for algorithm designers, and the corresponding interpretation system which based on text scanning was proposed to map the advanced language to machine language that runs on the heterogeneous software and hardware architectures. the parallel method library and parameter library were also provided to achieve the comprehensive utilization of the different computing resources and assign parallel tasks reasonably. theoretical analysis results show that the general layered heterogeneous parallel computation model is clear and single goaled for each parallelcomputing phase.
this paper introduces the numerical parallel computation of geometrical ray-tracing. By analyzing the model of ray-tracing and using some parallel techniques, such as strategy of "Divide and Conquer" to desi...
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ISBN:
(纸本)0780378407
this paper introduces the numerical parallel computation of geometrical ray-tracing. By analyzing the model of ray-tracing and using some parallel techniques, such as strategy of "Divide and Conquer" to design a geometrical ray-tracing parallel program with MPI mode. the numerical simulation computation results of parallel program on PC-cluster platform and HPC (high performance computer) with DSM structure both show a great increase of computing speed and speedup ratio, the algorithm is proved efficient.
In this paper, scalable solver for time domain electromagnetic simulations will be stdudied. this solver is developed with discontinuous Galerkin (DG) method on unstructured mesh. High-order nodal basis, employing mul...
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ISBN:
(纸本)9780769548791
In this paper, scalable solver for time domain electromagnetic simulations will be stdudied. this solver is developed with discontinuous Galerkin (DG) method on unstructured mesh. High-order nodal basis, employing multivariate Lagrange polynomials defined on the triangles has been used to expand the electromagnetic fields. Both periodic and perfect electric conduct (PEC) conditions have been implemented. Domain decomposition has been used for the parallelization, and good scalability has been achieved due to the DG algorithm. Benchmarks for this solver on different supercomputers will be shown. At last, large simulations with1024 processors will be shown.
Chord is a classical peer-to-peer document routing model. In this paper, we firstly present an improved Chord model, in which the nodes are organized into groups, to enhance the lookup efficiency and decrease the impa...
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ISBN:
(纸本)0769524052
Chord is a classical peer-to-peer document routing model. In this paper, we firstly present an improved Chord model, in which the nodes are organized into groups, to enhance the lookup efficiency and decrease the impact of dynamic environment. In addition, we propose a file storage strategy in the improved Chord model. Withthe strategy, shared file can be transmitted from multiple nodes simultaneously that could speed up the download, and at the same time the strategy can guarantee data security by means of introduction of a special metadata file.
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