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IEEE International Conference on High Performance Computing and Communications (HPCC)

作者： Igor Machado Coelho Luiz Satoru Ochi Pablo Luiz Araújo Munhoz Marcone Jamilson Freitas Souza Ricardo Farias Cristiana Bentes Institute of Computing Fluminense Federal University UFF Niteroi Brazil Department of Computer Science UFOP-Federal University of Ouro Preto and FEAD Ouro Preto Brazil System Engineering Program-COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil Department of System Engineering State University of Rio de Janeiro Rio de Janeiro Brazil

In this work, we propose a new algorithm to solve a variant of the Vehicle Routing Problem that is the Single Vehicle Routing Problem with Deliveries and Selective Pickups (SVRPDSP). Our algorithm produces good quality solutions that are better than the best known solutions in the literature. In order to reduce the time spent to solve large-sized instances, we also propose here a parallel implementation of our algorithm that explores a heterogeneous environment composed of a CPU and a GPU. Therefore, our algorithm harnesses the tremendous computing power of the GPU to improve the performance of the local searches computation. We obtained average speedups from 2.73 to 16.23 times with our parallel approach.

关键词： Graphics processing unit Vehicles Parallel algorithms Vectors Resource management Optimization Routing

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Awareness and Comprehension in Software/systems engineering Practice and Education: Trends and Research Directions

Awareness and Comprehension in Software/Systems Engineering ...

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Brazilian Symposium on Software engineering (SBES)

作者： Marcelo Schots Cl'udia Werner Manoel Mendonça Systems Engineering and Computing Program COPPE Federal University of Rio de Janeiro Rio de Janeiro Brazil Computer Science Department Federal University of Bahia Rio de Janeiro Brazil

The creation of tools, techniques and methodologies to support the manipulation of large data sets has been receiving special attention of both scientific and industrial communities, in order to discover new ways of dealing with the underlying information, including learning purposes, identification of patterns, decision making support, amongst others. However, making use of computing resources to enhance awareness and understanding of software information and the software itself is still a challenge in software/systems engineering, since it involves the identification of suitable mechanisms, adequate abstractions, and studies on stimulation of the human perceptive and cognitive abilities. This paper presents some of the challenges in this context, based on current trends of software development lifecycle, program comprehension, and software engineering education. At the end, a special focus is given on ongoing research on using and improving current mechanisms for supporting software reuse practices and software comprehension in general.

关键词： Software Software engineering Education Visualization Conferences Industries Data visualization

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Design Pattern Usage in Grid Computing

Design Pattern Usage in Grid Computing

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International Conference on Broadband, Wireless Computing, Communication and Applications (BWCCA)

作者： Markus Aleksy Makoto Takizawa Leonard Barolli Industrial Software System Program ABB Corporate Research Center Germany Germany Department of Computer and Information Science Seikei University Tokyo Japan Department of Information and Communication Engineering Fukuoka Institute of Technology Fukuoka Japan

The recent advances in Grid and Cloud computing make new types of applications possible. At the same time, they require an infrastructure to implement heterogeneous computing resources time and cost-savely. Here, approaches that utilize design patterns, i.e., proven solutions to existing problems, seem to provide a good approach to enable these kind of applications. In this paper, we investigated which design patterns are already used in the area of Grid computing nowadays. After a brief description of the literature study design, we present our findings which include the discovered design patterns, corresponding categories, and application areas.

关键词： Grid computing Parallel processing Cloud computing Conferences Concurrent computing USA Councils

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PatternLab: From mass spectra to label-free differential shotgun proteomics

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Current Protocols in Bioinformatics 2012年第SUPPL.40期40卷

作者： Carvalho, Paulo C. Fischer, Juliana S.G. Xu, Tao Yates III, John R. Barbosa, Valmir C. Carlos Chagas Institute-Fiocruz Parańa Brazil Department of Cell Biology The Scripps Research Institute La Jolla CA United States Systems Engineering and Computer Science Program COPPE Federal University of Rio de Janeiro Brazil

PatternLab for proteomics is a self-contained computational environment for analyzing shotgun proteomic data. Recent improvements incorporate modules to facilitate the computational analysis, such as FastaDBXtractor for sequence database preparation and ProLuCID runner for simplifying and managing the protein identification search engine;modules for pushing the limits on proteomics standards, such as SEPro, which relies on a semi-labeled decoy approach for increasing confidence in filtering and organizing peptide spectrum matches;and modules with novel features, such as SEProQ for enabling labelfree quantitation by extracted ion chromatograms according to a distributed normalized ion abundance factor approach (dNIAF). Existing modules were also improved, such as the TFold module for pinpointing differentially expressed proteins. These new modules are integrated into the previously described arsenal of tools for further data analysis. Here we provide detailed instructions for operating and understanding them. © 2012 by John Wiley & Sons, Inc.

关键词： Dniaf filtering PSMs Protein identification Quantitative proteomics Semi-labeled decoy approach

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A roadmap to the Collaboration Maturity Model (CollabMM) evolution

A roadmap to the Collaboration Maturity Model (CollabMM) evo...

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International Conference on computer Supported Cooperative Work in Design

作者： Magdaleno, Andréa Magalhães Araujo, Renata Mendes De Werner, Cláudia Maria Lima System Engineering and Computer Science Program - COPPE/UFRJ Rio de Janeiro RJ Brazil PPGI - Graduate Program in Informatics - UNIRIO Rio de Janeiro RJ Brazil

ISBN: (纸本)9781457703874

Organizations have been relying on collaboration for productivity improvement and knowledge sharing. The first step to foster collaboration in organizations is to make it explicit. With this aim, the Collaboration Maturity Model (CollabMM) was proposed and evaluated. The lessons learned during model applications in previous work pointed out the need to review both the model and its evaluation instruments. A literature review also showed some improvement opportunities. Therefore, the objective of this work is to develop a roadmap to highlight the main opportunities of evolution in CollabMM. These opportunities will compose our research agenda in this topic and guide future work. © 2011 IEEE.

关键词： Productivity

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Treating business dimension in Software Ecosystems 11

Treating business dimension in Software Ecosystems

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International Conference on Management of Emergent Digital Ecosystems, MEDES'11

作者： Dos Santos, Rodrigo Pereira Werner, Cláudia System Engineering and Computer Science COPPE University of Rio de Janeiro 21945-970 Rio de Janeiro Brazil

ISBN: (纸本)9781450310475

Software Ecosystems (SECOs) have emerged as an approach to improve Software engineering (SE) in industry considering relations among companies and stakeholders. Companies have opened up their platforms and artifacts to others, including partners and third-part developers. Thus, systems architecture, businesses and social networks should be understood in an integrated way. This concern motivated an initial proposal of a framework for SECOs engineering in order to outline a set of steps that combines three different dimensions of SECOs and joins different perspectives in SECOs research literature through a survey. In this paper, the focus is on the second dimension, business. A preliminary analysis carried out on a Software Reuse Lab's SECO at coppe/UFRJ points out that concepts explored by researchers can be merged in a broader SE approach. Copyright © 2011 ACM.

关键词： computer software reusability

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Distributed real-equipment testing for the mobile communications services

Distributed real-equipment testing for the mobile communicat...

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2011 10th RoEduNet International Conference on Networking in Education and Research, RoEduNet 2011

作者： Cazacu, Virgil Iuga, Laura Balan, Titus Sandu, Florin Siemens Program and System Engineering Brasov Romania Faculty of Electrical Engineering and Computer Science Transilvania University Brasov Romania

ISBN: (纸本)9781457712333

The test activities performed during the life cycle of the telecommunication service development ensure the service quality and stability so necessary to achieve the maximum availability and reliability. The paper presents authors' contribution to remote and distributed testing for mobile communications services based on cloud computing assets and paradigms. The access solutions to the test methods were implemented for the GSM and GSM-R (Global system for Mobile - Railways) related Intelligent Networks services. The scalability and flexibility of the architecture allows to the proposed solution to be used, for both the production and the educational environments, to access the resources located on the different sites for the tests purpose. The concept of the remote test solution and the practical examples based on the remote tests with real equipments are presented in this paper. © 2011 IEEE.

关键词： Equipment testing

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Making the comprehension of software architecture attractive

Making the comprehension of software architecture attractive

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Conference on Software engineering Education & Training (CSEE&T)

作者： Claudia Susie C. Rodrigues Cláudia M. L. Werner System Engineering Computer Science COPPE UFRJ Brazil

ISBN: (纸本)9781457703492

Visualization stimulates the cognitive capacity of humans and facilitates the understanding of a subject. It performs a crucial role in teaching software architecture. As systems become more complex, new education proposals have been introduced in the classroom, especially those that make teaching more attractive to students. This paper presents the VisAr3D approach which was designed to provide a 3D visualization of UML models, where the user should intuitively understand architectural elements in this 3D environment. It includes exploration, interaction and simulation resources to establish a practical and pleasant learning activity, focusing in large scale systems.

关键词： Unified modeling language Three dimensional displays Visualization Software architecture Education Solid modeling computer architecture

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Porantim-opt: Optimizing the combined selection of model-based testing techniques

Porantim-opt: Optimizing the combined selection of model-bas...

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Workshop on Requirements and Validation, Verification, and Testing

作者： Neto, Arilo Claudio Dias De Freitas Rodrigues, Rosiane Travassos, Guilherme Horta Post-graduation Program In Informatics Computer Science Department Federal University of Amazonas Manaus AM Brazil Systems Engineering and Computer Science Program COPPE Federal University of Rio De Janeiro Rio De Janeiro RJ Brazil

ISBN: (纸本)9780769543451

The combination of testing techniques is considered an effective strategy to evaluate a software product. However, the selection of which techniques to combine in a software project has been an interesting challenge in the Software engineering field. This paper presents a proposal extending an approach developed to support the combined selection of model-based testing (MBT) techniques, named Porantim, applying Multiobjective Combinatorial Optimization strategy by determining the smallest dominating set in a bipartite and weighted graph. Thus, a local search strategy algorithm is proposed generating solutions aiming at maximizing the coverage of software project characteristics and skills required by the testing team to use the techniques and minimizing the eventual effort to construct models used for test cases generation. A preliminary evaluation analyzes this new approach when compared to the Porantim's original version, and the results indicate improvements in the MBT techniques selection. © 2011 IEEE.

关键词： Software testing

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An analysis of change operations to achieve consistency in model-driven software product lines 11

An analysis of change operations to achieve consistency in m...

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Proceedings of the 15th International Software Product Line Conference, Volume 2

作者： Corrêa, Chessman K. F. Oliveira, Toacy C. Werner, Claudia M. L. Federal University of Rio de Janeiro COPPE - System Engineering and Computer Science P.O. Box 68511 Rio de Janeiro RJ 21945-970 Brazil

ISBN: (纸本)9781450307895

Model-Driven Software Product Line (MD-SPL) is the combination of Model-Driven Software Development and Software Product Line. In this paradigm, there are complex dependency relationships between different software development artefacts. These artefacts have to be changed during development and maintenance activities. However, the quantity of elements involved and the complex dependencies may imply that not all artefacts are updated appropriately, making these artefacts inconsistent with each other and with variability rules. This article discusses the change impact on interrelated MD-SPL artefacts and what has to be done do keep consistency. Copyright © 2011 ACM.

关键词： Software design

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