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Computational Science and Its Applications (ICCSA), 2012 12th International Conference on

Date 18-21 June 2012

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Displaying Results 1 - 25 of 47
  • [Cover art]

    Publication Year: 2012, Page(s): C4
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  • [Title page i]

    Publication Year: 2012, Page(s): i
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  • [Title page iii]

    Publication Year: 2012, Page(s): iii
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  • [Copyright notice]

    Publication Year: 2012, Page(s): iv
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  • Table of contents

    Publication Year: 2012, Page(s):v - vii
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  • Message from the General Chairs

    Publication Year: 2012, Page(s): viii
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  • Message from the Local Organizing Committee Chair

    Publication Year: 2012, Page(s): ix
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  • Conference Organization

    Publication Year: 2012, Page(s):x - xv
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  • Message from the FISTA 2012 Chairs

    Publication Year: 2012, Page(s): xvi
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  • Message from the TTSDP 2012 Chair

    Publication Year: 2012, Page(s):xvii - xviii
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  • Message from the QMCSA 2012 Chairs

    Publication Year: 2012, Page(s): xix
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  • Sponsors

    Publication Year: 2012, Page(s):xx - xxii
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  • A Scheduler for Grid Task Based on Differential Evolution Algorithm and Robust to Uncertainty Communication Demand of the Application

    Publication Year: 2012, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (222 KB) | HTML iconHTML

    The grid schedulers are responsible for deciding how to divide the tasks on the grid hosts in order to achieve the best possible performance. The lack of user's knowledge about the applications' demands do the informations received by the schedulers differ from the actual values that should be considered to achieve nearly optimal scheduling. This paper introduces a robust task scheduler to uncerta... View full abstract»

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  • A Web Service-based Framework for Temporal/Spatial Environmental Data Access

    Publication Year: 2012, Page(s):7 - 13
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (553 KB) | HTML iconHTML

    The Weather Forecast and Climate Studies Center (CPTEC) of the Brazilian National Institute for Space Research (INPE) is responsible for weather and climate forecasts and weather data collection and dissemination. Data is collected from several different systems and networks, with different sensors and features. Data is available through the Institute's web site through searchable web pages, which... View full abstract»

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  • Ad-Hoc Buffering in Neighbor Nodes for Burst Data Transmissions in Wireless Sensor Networks

    Publication Year: 2012, Page(s):14 - 19
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (645 KB) | HTML iconHTML

    In sensor networks, burst sensor messages are required to be transmitted along a wireless multihop routes to a sink node with no lost sensor messages and with shorter transmission delay. However, due to congestions, buffers in intermediate sensor nodes around the sink node overflow. In addition, buffers in other intermediate sensor nodes are also overflow since an intermediate node Ni is an expose... View full abstract»

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  • Towards an Adaptive Workflow with Multi-Agents in a Semantic Grid

    Publication Year: 2012, Page(s):20 - 25
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB) | HTML iconHTML

    Semantic grid computing provides a shared computing environment with geographically distributed resources. These resources status changes dynamically and the type of applications to be executed also changes in time. In this paper, we proposed an adaptive mechanism in the semantic grid environment to reduce the efforts to configure and enact application workflows. Some applications were used to des... View full abstract»

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  • A Survey: Soft Computing in Intelligent Information Retrieval Systems

    Publication Year: 2012, Page(s):26 - 34
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (289 KB) | HTML iconHTML

    This paper provides an in-depth survey of challenges in the design of intelligent information retrieval systems, pointing out some similarities and differences in the core data mining and web based search operations. The procedures for evaluation of search engine performance and implicit feedback of the user with respect to a search result are studied with references to the different algorithms. W... View full abstract»

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  • High-Level Specification and Code Generation for Service-Oriented Tool Adapters

    Publication Year: 2012, Page(s):35 - 42
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (178 KB) | HTML iconHTML

    The development of complex systems requires tool support for the different phases of the system life cycle. To allow for an efficient development process, the involved tools need to be integrated, e.g. by exchanging tool data or providing trace ability between the data. Despite the availability of tool integration platforms and frameworks, it is labor-intensive and costly to build tool integration... View full abstract»

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  • Indexing Structured Documents with Suffix Arrays

    Publication Year: 2012, Page(s):43 - 48
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (207 KB) | HTML iconHTML

    Path indexes based on suffix trees have shown to be highly efficient structures when dealing with digital collection that consists of structured documents, since they provide a fast response to queries including structural requirements. Nevertheless, when the collection consists of highly heterogeneous documents, suffix trees may be too memory demanding. In such cases, the use of a suffix array as... View full abstract»

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  • Parallelism as a Concern in Java through Fork-join Synchronization Patterns

    Publication Year: 2012, Page(s):49 - 56
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (385 KB) | HTML iconHTML

    We are facing a hardware revolution given by the increasing availability of multicore computers, clusters, Grids, and combinations of these. Consequently, there is plenty of computational power, but today's programmers are not fully prepared to exploit parallelism and distribution. Particularly, Java has helped in handling the heterogeneity of such environments, but there is a lack of facilities t... View full abstract»

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  • An Extensive Theoretical Study for the CN + C2H4 Reaction

    Publication Year: 2012, Page(s):57 - 62
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (335 KB) | HTML iconHTML

    An extensive quantum chemical study of the potential energy surface (PES) for the different pathways of the reaction of CN + C2H4 is reported. Critical geometries of this reaction were optimized at M06L and CCSD/Aug-cc-pVDZ levels of theory. The theoretical rate constants are also calculated for the main reaction pathway using the transition state theory. The predicted values... View full abstract»

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  • Bio-Inspired Diffusion Based Molecular Communication in Long-range

    Publication Year: 2012, Page(s):63 - 66
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (519 KB) | HTML iconHTML

    The scale limitations of conventional silicon based electromagnetic systems and the potential benefits of nanoscale devices, have spurred significant interest in studying nano-scale computation, electronics and communication. Nanonetworks, the interconnection of nanomachines, provide the means for cooperation and information sharing among tiny nanomachines, allowing them to fulfill more complex ta... View full abstract»

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  • A SAPT Study of the H2O X2 Complexes; X = H, N and F

    Publication Year: 2012, Page(s):67 - 76
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (274 KB) | HTML iconHTML

    The interaction energy of the H2O⋯X2 complexes, with X = H, N and F has been analyzed by using the SAPT (Symmetry Adapted Perturbation Theory) methodology. The decomposition of the interaction energy into distinct physical components is a unique feature of SAPT which distinguishes this method from the super molecular approach. In SAPT, the interaction energy is express... View full abstract»

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  • Umbrella Inversion Processes. Disentanglement of the Vibration-rotation Problem and Eigenfunctions

    Publication Year: 2012, Page(s):77 - 82
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB) | HTML iconHTML

    The umbrella inversion mode is a large amplitude motion characteristic of four atom molecules of type AB3 (such as ammonia and the hydronium ion) and is a mechanism for chirality inversion of pyramidal molecules. A reduced dimension approach to the modelling of the umbrella inversion can be obtained by enforcing C3v symmetry, that is the minimum symmetry group of the equilibrium configuration of t... View full abstract»

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  • Method for Counting Microorganisms and Colonies in Microscopic Images

    Publication Year: 2012, Page(s):83 - 87
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1085 KB) | HTML iconHTML

    This paper presents a method to count microorganisms and colonies in microscopic images. The method uses a series of morphological operations to create a representation in which the objects of interest are easily isolated and counted. The proposal is successful in most cases, properly dealing with some difficult situations like when the sizes of the objects vary strongly and when there is low cont... View full abstract»

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