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2022 IEEE IFEES World Engineering Education Forum - Global Engineering Deans Council, WEEF-GEDC 2022

作者： Malschutzky, Michael M. Gurganus, Jamie R. Department of Management Sciences Germany Mechanical Engineering and Graduate School University of Maryland Baltimore County Engineering and Computing Education Program Baltimore United States

ISBN: (纸本)9781665475280

Benefits of a failure friendly culture, e.g., learning from failure, are widely known in occupational settings. Validated scales have been developed to measure organizational failure culture and individuals' mind-sets on failure. While research on learning from failure exists in secondary education, scales for higher education are lacking. To support both higher education engineering instructors and students, this contribution aims to develop a Culture of Failure Scale to assess students' and lecturers' handling of failures in engineering higher education settings. This data-driven approach helps inform instructors about aspects of educational settings that are safe and conducive to learning and supports their students to develop a mind-set where failures are seen as a source for improvements and learning. Exemplary application of the developed scale is shown by assessing the failure culture in different groupings, e.g., gender, between two participating German and US institutions. © 2022 IEEE.

关键词： Failure (mechanical)

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Dealing with standard and reverse motion of multi-legged robots joints

Dealing with standard and reverse motion of multi-legged rob...

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10th International Conference on Informatics in Control, Automation and Robotics, ICINCO 2013

作者： Llantada, Alan Gómez, Arthur Tórgo Villamil, Marta Becker Universidade do Vale do Rio dos Sinos Applied Computing - Graduate Program Av. Unisinos 950 Sao Leopoldo RS Brazil

ISBN: (纸本)9789898565716

Modelling of articulated figures such as simple hierarchical relationships are suitable for most cases of animation. Typically, for the representation of human and animal figures, a tree topology is sufficient. But complex high-dimensional articulated structures with many end-effectors and the movement that can be generated in any joint in any direction, are extremely complex to model. Multi-legged robots made to attend applications which needs the extreme versatility to climb or move into places of very difficult access are more efficient if its joints can perform motion at standard and reverse direction, its segments can be moved by more than one joint and any of its joints can be the root of the motion chain. This article presents an approach to deal with these gaps in modeling the motion topology of legged-robots based on rotation of joints references frames. We also present an aplication of an hybrid algorithm based on Genetic Algorithm and Tabu Search to find a good quality solution to the robot motion sequences.

关键词： Genetic algorithms

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Cloud elasticity for HPC applications: Observing energy, performance and cost

Cloud elasticity for HPC applications: Observing energy, per...

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Conferencia Latinoamericana En Informatica (CLEI)

作者： Vinicius Facco Rodrigues Gustavo Rostirolla Rodrigo da Rosa Righi Cristiano André da Costa Jorge Luis Victoria Barbosa Applied Computing Graduate Program Unisinos São Leopoldo RS Brazil Applied Computing Graduate Program Unisinos RS Brazil

Elasticity is one of the most known capabilities related to cloud computing, being largely deployed using thresholds. In this way, limits are used to drive resource mangement actions, leading to the following problem statements: How can cloud users set the threshold values to enable elasticity in their cloud applications? And what is the impact of the application's load pattern in the elasticity? This article answers these questions for iterative high performance computing applications, showing the impact of both thresholds and load patterns on application performance and resource consumption. To accomplish this, we developed a reactive and PaaS-based elasticity model called AutoElastic and employed it over a private cloud to execute a numerical integration application. Here, we are presenting an analysis of best practices and possible optimizations regarding the elasticity and HPC pair. Considering the results, we observed that the upper threshold influences the application time more than the lower one.

关键词： Cloud computing Elasticity Computational modeling Manuals Monitoring High performance computing

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Correction: A meta-classification-based approach for outlier identification in GNSS networks

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GPS Solutions 2025年第2期29卷 1-1页

作者： Suraci, Stefano Sampaio de Oliveira, Leonardo Castro Klein, Ivandro Goldschmidt, Ronaldo Ribeiro Rofatto, Vinicius Francisco Defense Engineering Department Military Institute of Engineering Leonardo Castro de Oliveira Rio de Janeiro Brazil Defense Engineering Program Military Institute of Engineering Rio de Janeiro Brazil Graduate Program in Geodetic Sciences Federal University of Paraná Curitiba Brazil Dept. of Civil Construction Federal Institute of Santa Catarina Florianopolis Brazil Systems and Computing Program Military Institute of Engineering Rio de Janeiro Brazil Institute of Geography Federal University of Uberlândia Monte Carmelo Brazil

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D-MEANDS: a novel evolutionary approach to dynamic many-objective optimization problems

D-MEANDS: a novel evolutionary approach to dynamic many-obje...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Thiago Fialho de Queiroz Lafetá Gina Maira Barbosa de Oliveira Graduate Program in Computing (FACOM) Uberlândia Brazil

ISBN: (数字)9781728185262

ISBN: (纸本)9781728185279

Several real-world optimization problems manipulate discrete variables, involve with many objectives and vary along the time, that is, they are dynamic. Recent works have focused on investigate dynamic multiobjective optimization problems (DMOPs), which adds an additional challenge to the search convergence. Some evolutionary strategies have emerged based on the adaptation of consagrated multiobjective algorithms previously proposed for static continuous optimization problems, such as, NSGA-II and MOEA/D. This work presents a novel evolutionary algorithm for dynamic discrete many-objective problems named D-MEANDS. It uses the subjacent search proposed in MEANDS. This algorithm has been successfully investigated in static MOPs and herein we propose some adaptations to be used in DMOPs. A comparative analysis of the new proposal is made using two DMOP evolutionary algorithms from the literature: DNSGA-II and MS-MOEA. A dynamic many-objective version of the knapsack problem (KP), known as dynamic multiobjective knapsack problem (DMKP), was explored. Results using DMKP formulations with 4 and 6 objectives suggest that D-MEANDS is a promising algorithm to deal with DMOPs with many objectives.

关键词： Performance evaluation Heuristic algorithms Sociology Search problems Complexity theory Statistics Optimization

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Spider-DAR: A tool to support the implementation of decision analysis and resolution process based into CMMI-DEV and MR-MPS-SW models 10

Spider-DAR: A tool to support the implementation of decision...

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10th International Conference on the Quality of Information and Communications Technology, QUATIC 2016

作者： De Lima, Luiz Otavio Danin Oliveira, Sandro Ronaldo Bezerra Da Silva, Bleno Wilson Franklin Vale Da Silva, Gessica Pinheiro Raiol, Iuri Igonez Silva Graduate Program in Computer Science Federal University of Pará Belém Pará Brazil Faculty of Computing Federal University of Pará Belém Pará Brazil

ISBN: (纸本)9781509035816

In order to have a competitive software industry, it is essential to adopt standards and reference models of software processes quality. However, despite the growing adoption of standards and models, the number of organizations that adopt these is a small portion of the total population of software organizations. This paper presents a tool to support the implementation of decision analysis and resolution process in adherence to CMMI-DEV model. This tool aims to assist software organizations in the implementation of the CMMI-DEV model. We expect that this tool be more easily adopted by software organizations because it is based on models and standards largely accepted. Furthermore, this tool adopts free technologies (non-proprietary) in order to reduce costs. © 2016 IEEE.

关键词： Decision making

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EAVIRA: Energy-Aware Virtual Infrastructure Reallocation Algorithm

EAVIRA: Energy-Aware Virtual Infrastructure Reallocation Alg...

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Brazilian Symposium on computing System Engineering (SBESC)

作者： Denivy B. Ruck Maurício A. Pillon Charles C. Miers Guilherme P. Koslovski Department of Computer Science Graduate Program in Applied Computing

The elastic provisioning of Virtual Infrastructures (VIs) enables a dynamic management of cloud resources (computing and communication) in order to meet the hosted application's requirements. Thus, to perform elasticity requests, providers usually rely on reallocation mechanisms and policies. The concerns regarding the environment and the operational costs indicate energy consumption of the data centers as recurring topic in providers policies. Moreover, energy-aware provisioning is beneficial for tenants also. Recent cost models have introduced an implicit incentive to use computing and networking resources just when need to avoid high rent costs. However, reallocation and elasticity requests can unbalance the Data Center (DC) unnecessarily increasing the number of active servers. In this paper we propose EAVIRA algorithm, which takes into account the proportional sharing of CPU usage of DC servers to calculate individual usage costs to: disable idle equipments, and reallocate VIs. EAVIRA acts on online requests for elasticity configuration and performs an offline load balancing, triggered by the Infrastructure as a Service (IaaS) provider. Our experimental analysis indicates a reduction of energy consumption and an increasing on acceptance ratio of allocation requests.

关键词： Resource management Servers Energy consumption Elasticity Cloud computing Load management Computational modeling

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Server Cloud Based Security Surveillance Systems: a Design Science Research 11

Server Cloud Based Security Surveillance Systems: a Design S...

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11th International Conference on Cyber and IT Service Management, CITSM 2023

作者： Nurenie, Alexander Ramadhan, Arief Abdurachman, Edi Trisetyarso, Agung Zarlis, Muhammad Bina Nusantara University Binus Graduate Program - Computer Science Computer Science Department Jakarta11480 Indonesia Telkom University School of Computing Bandung Indonesia

ISBN: (纸本)9798350305968

In this research, the author addresses the prevalent issues faced by users of cloud services, especially those using Peer-to-Peer (P2P) technology, such as connection losses, security concerns, and poor video quality. The study does not delve into the complex problems at the data center level but instead proposes a novel Design Science Research approach. This new method, tested with five clients in varied locations, utilizes port forwarding to establish a direct server-client connection, bypassing traditional P2P frameworks. The results show that this approach significantly improves quality over the P2P system. Feedback from clients before and after the experiment indicates a positive response to this new method. This research offers insights into overcoming P2P-related issues in cloud services and contributes to the development of cloud-based server science, presenting a cost-effective, independent alternative to data center-dependent P2P services, with plans for ongoing research in this area. © 2023 IEEE.

关键词： Cost effectiveness

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Redesigning transaction load balancing on electronic funds transfer scenarios 14

Redesigning transaction load balancing on electronic funds t...

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29th Annual ACM Symposium on Applied computing, SAC 2014

作者： Da Rosa Righi, Rodrigo Da Costa, Cristiano André Gonzaga Jr., Luiz Farias, Kleinner Andrade, Alexandre Luis Graebin, Lucas Universidade do Vale do Rio dos Sinos Applied Computing Graduate Program Unisinos Av. 950 São Leopoldo RS Brazil

ISBN: (纸本)9781450324694

The use of electronic medias for payment has been increasingly adopted, instead of employing money in currency paper or check directly. Considering this electronic funds transfer (EFT) scenario, we developed a model called GetLB which comprises not only a completely new and efficient scheduler but also a cooperative communication infrastructure for handling heterogeneous and dynamic environments. The scientific contribution consists of a scheduling heuristic that combines static data from transactions and dynamic one from processing nodes to overcome the limitations of Round-Robin. Besides the GetLB's description, this article also presents a prototype evaluation by using both traces and configurations obtained with a real EFT company. Copyright 2014 ACM.

关键词： Scheduling

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Code compression using Multi-Level Dictionary

Code compression using Multi-Level Dictionary

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2013 IEEE 4th Latin American Symposium on Circuits and Systems, LASCAS 2013

作者： Dias, Wanderson Roger Azevedo Moreno, Edward David Federal University of Amazonas - UFAM Institute of Computing - IComp Post-Graduate Program in Informatics - PPGI Manaus Brazil Federal University of Sergipe - UFS Center for Exact Sciences and Technology - CCET Department of Computing - DComp Aracaju Brazil

ISBN: (纸本)9781424494859

This paper presents a new code compression method in which we merge the Huffman algorithm with the formation of patterns of blocks and three dictionaries. We seek two consecutive blocks in two levels, one of them into compressed code and the other related to uncompressed code. We have used simulation with SimpleScalar and programs from MiBench. Our proposal has achieved a compression rate of 32.6% and 31.9%, respectively, for ARM and MIPS processor. © 2013 IEEE.

关键词： Codes (symbols)

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