Brazilian Computer Society Research Articles

Ética: qual o cenário de pesquisa no Simpósio Brasileiro SBSeg?

Ethics and Information and Computer Systems Security go hand in hand. Security is related to freedom from risk or the threat of change for the worse and is directly associated with moral values and evaluation. In Brazil, the largest and most important event related to this topic is the Brazilian Symposium on Information and Computational Systems Security (SBSeg) of the Brazilian Computer Society. This paper aims to investigate the occurrence of ethical aspects in SBSeg's. How does ethics explicitly permeate research published in SBSeg between 2001 and 2021? By responding to this research question, the results indicate that the respective Brazilian community is far from dealing with ethical aspects in its scientific communications. We discuss this result, bringing analyzes and interpretations containing concerns, and future work.

Latin American Women and Computer Science: A Systematic Literature Mapping

<italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Contributions:</i> The underrepresentation of women in computer science (CS) majors has long been a focus of attention in many academic documents, the majority of them from the United States and Europe. There is, however, a lack of information about educational interventions (EIs) for women in computing in Latin America. The contribution of this article is to cover this gap and describe what researchers in Latin American countries have been publishing about the recruitment and retention of women in the CS field. <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Background:</i> Many EIs targeting female students at different educational levels—K-12, undergraduate, and graduate—have been undertaken to increase the participation of women in computing in Latin America. However, descriptions of these activities rarely are included in international academic databases. <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Research Questions:</i> This literature mapping addresses two main research questions (RQ) about the topic of women in computing in academic publications in Latin American countries: RQ1) what are the characteristics of the publications about women in computing in Latin America? and RQ2) what are the published interventions to recruit and retain women in computing in Latin America? To answer RQ1, six subquestions were created covering year, language, country of origin, document type, and professional track. Furthermore, for RQ2, two subquestions were created involving educational level and the use of software development with a female theme. <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Methodology:</i> This investigation used the systematic literature mapping process. To achieve a broad coverage of papers, the following sources were included: Scopus, Web of Science, Google Scholar, EBSCO, the proceedings of the Latin American Women in Computing Conference (LAWCC), and those of the Women in Technology (WIT) workshop colocated with the annual conference of the Brazilian Computer Society (SBC). The included papers were published in the last decade (2010–2020) and written in English, Portuguese, or Spanish. <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Findings:</i> The literature mapping encompasses 197 academic documents, 48.2% of which were written in Portuguese, 28.7% in English, and 23.1% in Spanish. The papers originated from 15 of the 20 Latin American countries. Brazil and Costa Rica have the highest number of publications overall. The documents describe initiatives to increase the participation of women in computing majors that cover the entire educational spectrum, from K-12 to graduate programs, but papers targeting populations in higher education have started to appear recently.

Table of Contents

The Journal of Integrated Circuits and Systems (JICS) is a publication from SBMicro – Brazilian Microelectronics Society and SBC – Brazilian Computer Society whose are non-profit scientific societies aiming to foster the microelectronics and computer science teaching, research and development.

Table of contents and Foreword

The Editorial Board has the satisfaction to launch the second edition of the Journal of Integrated Circuits and Systems - JICS. This journal will present state-of-art papers on Integrated Circuits and Systems areas. It is an effort of both Brazilian Microelectronics Society - SBMicro and Brazilian Computer Society - SBC to create a new scientific journal covering the following microelectronic domains: Process and Materials, Device and Characterization, Design, Test and CAD of Integrated Circuits and Systems. This second edition includes a selection of papers from SBMicro symposium. We would like to thanks João Antonio Martino that worked as editor of the papers originated from SBMicro and included in this edition. We ask the researches all around the world to submit good papers to consolidate the journal as an international publication composed by a set of attractive and outstanding papers.The editors

Table of contents and Foreword

The Editorial Board has the satisfaction to launch the first edition of the Journal of Integrated Circuits and Systems - JICS. This journal will present state-of-art papers on Integrated Circuits and Systems areas. It is an effort of both Brazilian Microelectronics Society - SBMicro and Brazilian Computer Society - SBC to create a new scientific journal covering the following microelectronic domains: Process and Materials, Device and Characterization, Design, Test and CAD of Integrated Circuits and Systems.This first edition includes a regular paper in the field of asynchronous circuits, a paper in the area of mixed-signal circuits which first version was selected as one of the best papers in SBCCI2001, as well five others papers that were selected as best papers from SBCCI2002. We would like to thank Luigi Carro, José Huertas and Ney Calazans that worked as editors of the papers originated from SBCCI.We ask the researches all around the world to submit good papers to consolidate the journal as an international publication composed by a set of attractive and outstanding papers.The Editors

Possibilities for interdisciplinary software engineering education using problem-based learning (Pbl) and its social impacts

Software Engineering is an essentially interdisciplinary area. However, by the fact that this area be defined by the Reference Curriculum of the Brazilian Computer Society (2005) as a curricular framework isolated discipline of the computing undergraduate courses, sometimes its concepts are not properly applied. It is common to see the disciplines that compose the Software Engineering decontextualized and fragmented. The problem about this is that this area is too broad and complex to be summarized into a few disciplines. Given its interdisciplinary nature, it requires an equally interdisciplinary educational process. However, regarding the existing pedagogical practices in computing area, it is not observed much interdisciplinary actions. In this context, this work proposes a systematic literature review and some discussion in order to provide an alternative teaching method using PBL. As results it was observed that this teaching technique have potential to be adopted as an alternative applied to the formation of interdisciplinary citizens. Practical researches are in progress, aiming to demonstrate this potential.

Guest Editorial: Foreword to the special Issue of the XVII Symposium on Virtual and Augmented Reality – SVR 2015

This special issue of the JIS (SBC Journal on Interactive Systems) acknowledges the best papers of the XVII Symposium on Virtual and Augmented Reality (SVR 2015). SVR – the most important event on Virtual and Augmented Reality in Brazil in the last 17 years. Academic and professional members of the Brazilian Computer Society (SBC) support the conference since its beginning. To attend reader expectations, the selected papers come from different sub-areas of the Virtual and Augmented Reality. The developments introduced in the papers reflect important recent advances and achievements by the community. More specifically, this issue includes studies on crowd simulation, gesture driven interaction, the use of a camera as a pointing device, and tracking by applying grayscale conversion.

Educação em Sistemas de Informação no Brasil: Uma Análise da Abordagem Curricular em Instituições de Ensino Superior Brasileiras

In Brazil, Bachelor of Information Systems (BIS) courses emerged in the 1980s and have expanded considerably since then. Being a relatively recent academic degree in the country, it is necessary to investigate what the structures/curriculums of these courses are, primarily taking into consideration the prescriptions/indications of the scientific communities of the appropriate area and labor market demands. With this in mind, the general objective of this article is to develop an analysis of the curricular approach of BIS courses offered in higher education institutions (HEI) in Brazil, using a sample of 50 BIS courses offered by HEI around the country, whose selection procedure prioritizes courses that are regionally and/or nationally relevant, proven by quality indicators. One of the main findings of this work is that in relation to the thematic emphases of the various disciplines, the curriculums of the BIS courses in Brazil differ greatly from the guidelines defined by the Brazilian Computing Society. In addition, it is observed that little emphasis is given to disciplines related to specific training in the Information Systems (IS) area, which points to a weak identity of these courses in Brazil.

Welcome to the new Journal of Software Engineering Research and Development (JSERD)

© A m Editorial Research is shared with the world through the publication of scientific papers in conferences and journals. Between these two, journals are the traditional means for archival publication of research results across a broad range of disciplines. So it is in software engineering. Despite the important role that our conferences serve in furthering our field, journals still serve the role of disseminating and archiving more complete and mature results. Providing this avenue is crucial, given how software is present in human life more than ever. As a result, our community has the great responsibility to invent, develop, and deploy new techniques that assist developers everywhere in creating high-quality, safe, and secure software through productive and economicallyfeasible processes. Only by ‘seeing the research through’, that is, pushing it further so we understand the full ramifications of our inventions, can we guarantee that what we propose actually helps make the world a better place. As such, journal publications are as important as ever. One might question the need for another journal. After all, our community already has quite a few existing journals. Some of these, however, experience backlogs that lead to a long delay between the original submission and eventual publication. Others are specialized, focusing on one or at best a handful of specific subareas. JSERD emerged in this context as the result of extensive discussions in the Special Software Engineering Committee (CEES) of the Brazilian Computing Society (SBC) that lead to the recognition of the need for a broad software engineering journal that promotes rapid publication. JSERD is this journal, and is based on four major principles.

Guest Editorial for Special Section on BSB 2012

This special section includes a selection of papers presented at the Seventh Brazilian Symposium on Bioinformatics (BSB 2012) held 15-17 August 2012 in Campo Grande (Mato Grosso do Sul), Brazil. BSB is an international symposium that covers all aspects of ioinformatics and computational biology. The symposium is organized by the special interest group in Computational Biology of the Brazilian Computer Society (SBC).

Session details: Selected extended papers from SBESC 2012 Brazilian symposium on computing system engineering

The Brazilian Symposium on Computing System Engineering (SBESC) is an initiative of the research community originally associated with three events: the Brazilian Workshop on Real-Time Systems, created in 1998; the Brazilian Workshop on Operating Systems, created in 2004; and the Brazilian Workshop on Embedded Systems, created in 2010. The identification of a strong synergy among these research areas added to the fact that designing computing systems is an increasingly multidisciplinary task has motivated the workshops to move from their native conferences to form an independent symposium. The broad term "Computing System Engineering" emerged in the context of contemporary Cyber-Physical Systems, which challenge Engineers and Scientist as they shape a new reality for modern societies. This year, the symposium was hosted by the Federal University of Rio Grande do Norte (UFRN) in the beautiful coastal city of Natal in Northeast Brazil. The program spanned a whole week, from November 5 to 9, and was organized in two big blocks: peer-reviewed paper sessions and tutorials. The event was organized by UFRN's Computer Science Department (DIMAP), sponsored by the Brazilian Computing Society (SBC), and financed by CAPES, CNPq, and FAPERN. SBESC's Technical Program Committee also selected two papers from those presented at the symposium addressing operating systems issues to appear in the Operating Systems Review and thus offer ACM fellows a glimpse of the event. Authors were invited to extend and improve their manuscripts with recent research results. The first paper, On the Formal Verification of Component-based Embedded Operating Systems, by M. Ludwich and A. Frohlich, introduces an approach to formally verify the functional correctness and safety properties of embedded operating system components described at system-level. The convergence between software and hardware in the domain of embedded systems is pressing operating systems in the filed to deliver their services both as software and as hardware. In such a scenario, it is desirable to verify system properties regardless of whether components are instantiated as software or hardware. The approach combines software model checking and programming by contract concepts to address such issues. The second, Adaptive Request Batching for Byzantine Replication, by A. de Sa, A. Freitas, and R. Macedo, proposes an adaptation of the Practical Byzantine Fault Tolerance algorithm proposed by Liskov and Castro to increase its performance. The original PBFT algorithm uses a batch to store client requests on the primary replica. Requests in a batch are handled together, aiming at decreasing the time spent with message authentication. The adaptation strategy dynamically varies the batch size and the batch time-out according with application activity.

Message from the special issue editors

This Special Issue of the Journal of the Brazilian Computer Society features extended versions of five papers selected from The fifth Latin American Dependable Computing (LADC’2011) symposium, which took place in Sao Jose dos Campos, SP, on April 25–29, 2011. LADC is the major Latin American event that provides a forum for researchers and practitioners from all over the world to present and discuss their latest research results and developments on the dependability and security of computer systems and networks. The symposium scope spans system, software and hardware dependability, as well as security research and technological challenges, encompassing fundamental theoretical approaches and practical experimental studies. LADC’2011 received a total of 46 submissions from 12 countries. The entire process was handled electronically. A total of 159 reviews were entered, each paper received at least three reviews. The review process included a rebuttal period during which the authors had the opportunity to clarify doubts and other issues raised in the reviews of their papers. After the rebuttal period, the TPC members started the discussion phase, which resulted in the selection of the 18 papers that are included in the technical program (16 Regular Papers, and 2 Practical Experience Re-

Guest Editorial Foreword to the Special Issue of the XIII Symposium on Virtual and Augmented Reality

This special issue of the JIS (SBC Journal on 3D Interactive Systems) is in the second year acknowledging the best papers of the Symposium on Virtual and Augmented Reality. In the SVR 2011 several interesting research projects in the field of Virtual and Augmented Reality appeared and among the best papers this issue presents two selected papers for the readers of JIS. The SVR is the most important event on Virtual and Augmented Reality in Brazil, which is being conducted by academic professionals’ members of the Brazilian Computer Society (SBC) that is supporting the conference for many years. The two papers in this issue were selected among the best papers presented at the SVR 2011. Although the technical implementation of the papers is different each other, they try to solve problems of communication and location. It is possible to note that the virtual and augmented reality is really changing our life style, and these papers show important ideas that can be directly applied by people around the world. The paper “xGroupware: Supporting Collaborative Cross-Reality Environments using Multiagents System” authored by Katia Vega, Débora Cardador, Hugo Fuks and Carlos Lucena, presents very modern proposals of meetings, combining the virtual and real in a way that users can really take advantage of the resources available to improve their communication. It is also important to say that the clever idea to use multi agents in the system as an autonomous way to perceive and interact with the situations of the meetings is amazing. Finally the integration of wearable computing devices in the system makes it very interesting and probably reflects meetings of the future. The second paper “A Case Study of Augmented Reality for Mobile Platforms” authored by Gabriela Tinti Vasselai, Dalton Solano dos Reis and Paulo Cesar Rodacki Gomes presents how the mobile devices can contribute to help our localization with the resources of augmented reality. The paper shows that the resources available in the mobile devices can be used to augmented reality purposes although some improvements in the mobile platforms must be done. We would like to thank all the reviewers of the process, the editors and staff that supported us with the submission system, and of course the authors that had to extend and adapt their papers in order to have some new content that makes this special issue an important reference point for virtual and augmented reality research.

Guest Editorial Foreword to the Special Issue of the XII Symposium on Virtual and Augmented Reality

The special issue of the JIS (SBC Journal on 3D Inter- active Systems) acknowledging the best papers of the XII Symposium on Virtual and Augmented Reality (SVR 2010) was an important opportunity to present excellent papers in the Virtual and Augmented Reality field. The SVR is for more than 12 years the most important event on Virtual and Augmented Reality in Brazil, which is being conduct by academic professionals members of the Brazilian Computer Society (SBC) that is supporting the conference for so many years. Since this is the first special issue of JIS, we had selected papers to be included in the journal that fits the expectations of the readers. These papers were selected among the 10 best papers presented at the SVR 2010, and they come from different sub-areas of the Virtual and Augmented Reality. The development introduced in the papers present important new proposals and algorithms that might be used by several readers of the journal. The paper Exploring the Design of Transitional Hybrid User Interfaces authored by Daniela Trevisan, Felipe Carvalho, Alberto Raposo, Carla Freitas and Luciana Nedel, is about a discussion on how hybrid user interfaces should be managed in order to improve the feeling of immersion of the user in a virtual reality system. The second paper Expression Cloning Based on Anthropo- metric Proportions and Deformations by Motion of Spherical Influence Zones authored by Roberto C. Vieira, Creto Augusto Vidal, and Joaquim B. Cavalcante-Neto presented methods of mapping human facial expressions to virtual characters. This works was based on anthropometric proportions and geometric manipulations by moving influence zones of model with similar characteristics. The third paper Extending Brazilian DTV Middleware to Incorporate 3D Technologies authored by Daniel F. L. Souza, Liliane S. Machado, Tatiana A. Tavares explains how properly support for 3D content can be integrated on the new Brazilian Digital Television. The paper presents strategies and examples to prove their proposal. We would like to thank all the authors of this process that had to extend and adapted their papers as requested by both the submission and the reviewing process.

Computação: o terceiro pilar

O artigo examina o cenário brasileiro das atividades em computação como ciência (e não como instrumento, que é a visão dominante dos que não trabalham na área). Começando por dados históricos e uma apresentação quantitativa da nossa produção científica e formação de recursos humanos, termina com uma análise qualitativa, mostrando que, na área, os bons grupos brasileiros são comparáveis a grupos de ponta estrangeiros - quantitativa e qualitativamente. Essa comparação dos aspectos positivos também se estende aos problemas enfrentados, aqui e em todo o mundo, na atração de jovens e na formação multidisciplinar. O artigo enfatiza o papel singular da Sociedade Brasileira de Computação como impulsionadora de grandes redes de pesquisa com abrangência nacional, e destaca iniciativas brasileiras na área que têm obtido repercussão mundial.

Joint letter from the editor-in-chief and the publications chair of the Brazilian Computer Society

Joint letter from the editor-in-chief and the publications chair of the Brazilian Computer Society

Joint Letter from the Editor-in-Chief and the Publications Chair of the Brazilian Computer Society

Joint Letter from the Editor-in-Chief and the Publications Chair of the Brazilian Computer Society

Selected papers from SBES '07

This Special Issue contains four extended papers selected from those presented in the 21st Brazilian Symposium in Software Engineering (SBES 2007) which took place in Joa o Pessoa, state of Paraiba, in the northeast of Brazil. This series of symposia, which is currently in its 23rd edition, is an initiative of the Software Engineering Special Committee (CEES) of the Brazilian Computing Society (SBC). The objective of SBES is to stimulate the exchange of experiences between research groups, disseminate the use of advanced software engineering techniques and tools and promote contact between participants and national and international invited speakers.

Grand Research Challenges in Computer Science in Brazil

In May 2006, the Brazilian Computer Society proposed five grand research challenges in computer science in Brazil. The society's goal was to foster long-term planning and research in computer science, enhance cooperation with other scientific domains, and provide input to public R&D policymakers in Brazil.

Introduction to the Special Issue on the 18th International Symposium on Computer Architecture and High Performance Computing

This special issue of the International Journal of Parallel Programming is devoted to some of the best papers presented at the 18th edition of the International Symposium on Computer Architecture and High Performance Computing, also known as SBACPAD (the acronym comes from the time the symposium was in Portuguese—Simposio Brasileiro de Arquitetura de Computadores e Computacao de Alto Desempenho— and is kept for tradition), which was held at the city of Ouro Preto, State of Minas Gerais, Brazil, in October, 2006. Annually, SBAC-PAD gathers users, developers and researchers from academic, industrial and governmental R&D institutions to discuss progress and exchange ideas on the many aspects of computer architecture and high performance parallel and distributed computing. SBAC-PAD’2006 was sponsored by the Brazilian Computer Society (Sociedade Brasileira de Computacao—SBC), co-sponsored by IEEE Computer Society (TCCA – TCSC), and held in cooperation with IFIP Working Group 10.3 (Concurrent Systems). The six SBAC-PAD’2006 papers selected to be included in this issue reflect the breadth of the topics covered in the symposium and the many opportunities there are today for research on computer architecture and high performance computing. This special issue leads off with the paper selected for the SBAC-PAD’2006 Best Paper Award. In this paper, named Dual-Thread Speculation: A Simple Approach to Uncover Thread-Level Parallelism on a Simultaneous Multithreaded Processor, Warg and Stenstrom present a dual-thread speculation system that can be used for running