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This paper introduces state-of-the-art possibilities for using smart contracts capabilities for governance. Assisted by blockchain, the use of these tools can provide a transition that society currently needs due the huge amount of information that reaches citizens. The core mechanism of this study lies within the scope of smart accounts and digital identities. These topics enclose smart cities trends that seek to increase citizens’ participation in the social decision making process, in a transparent way that is usually managed throughout decentralized systems. We define a set of available features that can automatically guide the flow of resources, after the conclusions of voting processes also conducted on trusted environments of distributed ledgers. By presenting innovative ideas and didactically describing the possibilities, we aim to promote awareness of blockchain capabilities among readers, students, decisions makers and, mainly, the younger generation.
Vitor Coelho; Thays Oliveira; Wellington Tavares; Igor Coelho. Smart Accounts for Decentralized Governance on Smart Cities. Smart Cities 2021, 4, 881 -893.
AMA StyleVitor Coelho, Thays Oliveira, Wellington Tavares, Igor Coelho. Smart Accounts for Decentralized Governance on Smart Cities. Smart Cities. 2021; 4 (2):881-893.
Chicago/Turabian StyleVitor Coelho; Thays Oliveira; Wellington Tavares; Igor Coelho. 2021. "Smart Accounts for Decentralized Governance on Smart Cities." Smart Cities 4, no. 2: 881-893.
The way citizens interact with cities affects overall life quality. Their participation in social decisions is of paramount importance for helping on public decisions that affect governance, regulation and education. This interaction has the potential of being boosted within the scope of smart and digital cities, especially by recent advances in blockchain technology. This work introduces insights about how smart cities’ concepts and innovative technologies can help society to face daily challenges for improving citizens’ awareness. Digital technologies are able to drive social and economic development by employing Information and Communication Technology (ICT) to promote innovation. In this context, e-governance, in conjunction with disruptive concepts such as blockchain, is showing up as a fundamental tool for a decentralized democracy. This study reviews, discusses, raises open points and presents suggestions towards an efficient, transparent and sustainable use of technology, applied to future cities.
Thays A. Oliveira; Miquel Oliver; Helena Ramalhinho. Challenges for Connecting Citizens and Smart Cities: ICT, E-Governance and Blockchain. Sustainability 2020, 12, 2926 .
AMA StyleThays A. Oliveira, Miquel Oliver, Helena Ramalhinho. Challenges for Connecting Citizens and Smart Cities: ICT, E-Governance and Blockchain. Sustainability. 2020; 12 (7):2926.
Chicago/Turabian StyleThays A. Oliveira; Miquel Oliver; Helena Ramalhinho. 2020. "Challenges for Connecting Citizens and Smart Cities: ICT, E-Governance and Blockchain." Sustainability 12, no. 7: 2926.
Cities are constantly transforming and, consequently, attracting efforts from researchers and opportunities to the industry. New transportation systems are being built in order to meet sustainability and efficiency criteria, as well as being adapted to the current possibilities. Moreover, citizens are becoming aware about the power and possibilities provided by the current generation of autonomous devices. In this sense, this paper presents and discusses state-of-the-art transportation technologies and systems, highlighting the advances that the concepts of Internet of Things and Value are providing. Decentralized technologies, such as blockchain, are been extensively investigated by the industry, however, its widespread adoption in cities is still desirable. Aligned with operations research opportunities, this paper identifies different points in which cities’ services could move to. This also study comments about different combinatorial optimization problems that might be useful and important for an efficient evolution of our cities. By considering different perspectives, didactic examples are presented with a main focus on motivating decision makers to balance citizens, investors and industry goals and wishes.
Thays A. Oliveira; Yuri B. Gabrich; Helena Ramalhinho; Miquel Oliver; Miri W. Cohen; Luiz S. Ochi; Serigne Gueye; Fábio Protti; Alysson A. Pinto; Diógenes V. M. Ferreira; Igor M. Coelho; Vitor N. Coelho. Mobility, Citizens, Innovation and Technology in Digital and Smart Cities. Future Internet 2020, 12, 22 .
AMA StyleThays A. Oliveira, Yuri B. Gabrich, Helena Ramalhinho, Miquel Oliver, Miri W. Cohen, Luiz S. Ochi, Serigne Gueye, Fábio Protti, Alysson A. Pinto, Diógenes V. M. Ferreira, Igor M. Coelho, Vitor N. Coelho. Mobility, Citizens, Innovation and Technology in Digital and Smart Cities. Future Internet. 2020; 12 (2):22.
Chicago/Turabian StyleThays A. Oliveira; Yuri B. Gabrich; Helena Ramalhinho; Miquel Oliver; Miri W. Cohen; Luiz S. Ochi; Serigne Gueye; Fábio Protti; Alysson A. Pinto; Diógenes V. M. Ferreira; Igor M. Coelho; Vitor N. Coelho. 2020. "Mobility, Citizens, Innovation and Technology in Digital and Smart Cities." Future Internet 12, no. 2: 22.
Purpose Universities, as providers of knowledge and technology, have a key role in society based on knowledge. The purpose of this paper is to identify and describe the technological innovation centers (TICs) of the federal universities of Minas Gerais, Brazil, verifying if federal institutions of higher education in the state are meeting the attributions outlined in the Innovation Act. Design/methodology/approach In order to achieve the proposed objective, each one of the public and federal universities in the state of Minas Gerais, Brazil, was outlined as analysis units. The data sources used for this study are intrinsically secondary and were collected from the websites and TICs of each university. Findings As a result, it was found that all universities have TICs, and are inserted into the State Intellectual Property Network. Those aspects show that the universities have been searching for structure themselves by the new entrepreneurial mission of today’s educational institutions. Originality/value As noted in the literature, more research is needed to examine the efficiency and professionalism of TICs in the entrepreneurial activity of universities because the institutionalization of TICs is still recent and many TICs are currently in an improvement phase of their activities.
Humberto Rodrigues Marques; Thays Aparecida De Oliveira; Daniela Meirelles Andrade; Andre Luiz Zambalde. University entrepreneurship in Brazil. World Journal of Entrepreneurship, Management and Sustainable Development 2019, 15, 149 -158.
AMA StyleHumberto Rodrigues Marques, Thays Aparecida De Oliveira, Daniela Meirelles Andrade, Andre Luiz Zambalde. University entrepreneurship in Brazil. World Journal of Entrepreneurship, Management and Sustainable Development. 2019; 15 (2):149-158.
Chicago/Turabian StyleHumberto Rodrigues Marques; Thays Aparecida De Oliveira; Daniela Meirelles Andrade; Andre Luiz Zambalde. 2019. "University entrepreneurship in Brazil." World Journal of Entrepreneurship, Management and Sustainable Development 15, no. 2: 149-158.
The constant evolution of cities has driven the development of new tools for society. Applications inspired by operational research techniques, which aid decision making, can make viable dreams already dreamed up by philosophers. Among these, we highlight more participatory, legitimate, and reliable judicial and legislative systems. In this context, a multicriteria analysis seems necessary, balancing the different versions, beliefs, cultures, and consequent weights and measures desired by each citizen. In this paper, we present a new model for judicial/legislative processes in digital cities. The system proposes the use of sets of solutions, obtained from different weights adopted according to personal characteristics of those involved in the voting process. From a simple case of study, we highlight the possibilities, flexibility, and potential of the proposed system. The proposed framework shows up as promising tool for assisting decision making in other similar voting scenarios.
Vitor N. Coelho; Thays Aparecida de Oliveira; Iara V. O. Figueiredo; Marcone J. F. Souza; Iuri Veloso. A Multicriteria View About Judicial and Legislative Decision Making in Digital Cities and Societies. Urban Computing 2019, 209 -220.
AMA StyleVitor N. Coelho, Thays Aparecida de Oliveira, Iara V. O. Figueiredo, Marcone J. F. Souza, Iuri Veloso. A Multicriteria View About Judicial and Legislative Decision Making in Digital Cities and Societies. Urban Computing. 2019; ():209-220.
Chicago/Turabian StyleVitor N. Coelho; Thays Aparecida de Oliveira; Iara V. O. Figueiredo; Marcone J. F. Souza; Iuri Veloso. 2019. "A Multicriteria View About Judicial and Legislative Decision Making in Digital Cities and Societies." Urban Computing , no. : 209-220.
Cities are undergoing transformations in several respects, but, mainly, regarding novel technologies. In this sense, the aim of this study is to understand the relation between the cities and the use of emerging technologies such as digital democracy, blockchain and, in particular, smart contracts. To discuss and analyze the possibilities of this evolution and transformation, a bibliometric search is carried out in this chapter. A search of keywords in some refereed world databases was made: Springer, SCOPUS, IEEExplore, Science Direct, Google Trends, Web of Science, and Taylor & Francis. This combination of databases was selected in order to become possible to reach a high coverage of numbers of works about digital city and related technologies.
Thays A. Oliveira; Vitor N. Coelho; Helena Ramalhinho; Miquel Oliver. Digital Cities and Emerging Technologies. Urban Computing 2019, 197 -207.
AMA StyleThays A. Oliveira, Vitor N. Coelho, Helena Ramalhinho, Miquel Oliver. Digital Cities and Emerging Technologies. Urban Computing. 2019; ():197-207.
Chicago/Turabian StyleThays A. Oliveira; Vitor N. Coelho; Helena Ramalhinho; Miquel Oliver. 2019. "Digital Cities and Emerging Technologies." Urban Computing , no. : 197-207.
A global trend has been motivating programmers, investors, and the academia to go towards decentralized systems. Besides providing efficient solutions for complex problems faced in our daily life, these peer-to-peer communication protocols have been promoting greater freedom and transparency. In this paper, we point out open fields for researching, thinking, and developing in the context of Smart Cities and Smart Grids. Future cities will surely rely on efficient, autonomous, transparent, collaborative, and decentralized environment. In particular, we consider how renewable energy resources could be integrated with mini-/microgrids, which will be hearth of the future cities. Furthermore, we discuss possibilities for promoting territorial development, through the assistance of Blockchain-based platforms embedded with Computational Intelligence tools.
Vitor N. Coelho; Yuri Bastos Gabrich; Thays Aparecida de Oliveira; Luiz S. Ochi; Alexandre C. Barbosa; Igor M. Coelho. When CI and Decentralized Systems Effectively Meet Smart Cities and Grids. Urban Computing 2019, 239 -249.
AMA StyleVitor N. Coelho, Yuri Bastos Gabrich, Thays Aparecida de Oliveira, Luiz S. Ochi, Alexandre C. Barbosa, Igor M. Coelho. When CI and Decentralized Systems Effectively Meet Smart Cities and Grids. Urban Computing. 2019; ():239-249.
Chicago/Turabian StyleVitor N. Coelho; Yuri Bastos Gabrich; Thays Aparecida de Oliveira; Luiz S. Ochi; Alexandre C. Barbosa; Igor M. Coelho. 2019. "When CI and Decentralized Systems Effectively Meet Smart Cities and Grids." Urban Computing , no. : 239-249.
The smart city debate will still be the scope of business, policy-making and territorial planning in the following years. Based on that, the paper aims to propose an interdisciplinary conceptualization of smart territories. The goal is to promote the contrary movement of megacities creation and also consolidate the geographical aspect of smartness. The concept was formulated based on the elements of sustainable territorial development, strategic spatial planning and smart governance. In addition, taking hand of a parallel literature review, the study explores the potential of creating complementary cryptocurrencies as a strategy of territorial planning. This term was built based on already existing complementary currency systems in distributed ledger technologies scope. The idea provided presents a great potential for poverty alleviation by bringing together financial and digital inclusion.
Alexandre C. Barbosa; Thays Aparecida de Oliveira; Vitor N. Coelho. Cryptocurrencies for Smart Territories: an exploratory study. 2018 International Joint Conference on Neural Networks (IJCNN) 2018, 1 -8.
AMA StyleAlexandre C. Barbosa, Thays Aparecida de Oliveira, Vitor N. Coelho. Cryptocurrencies for Smart Territories: an exploratory study. 2018 International Joint Conference on Neural Networks (IJCNN). 2018; ():1-8.
Chicago/Turabian StyleAlexandre C. Barbosa; Thays Aparecida de Oliveira; Vitor N. Coelho. 2018. "Cryptocurrencies for Smart Territories: an exploratory study." 2018 International Joint Conference on Neural Networks (IJCNN) , no. : 1-8.
Smart cities have been receiving great focus during the recent years. One important topic that it covers is the use of technologies to help the connection between smart cities and citizens. These links can influence different cities services and governance such as transport, politics, education, public transparency, citizens' rights, among others. Those services work much better when they are connected, interconnected, participative and transparent. Any kind of environment requires these improvements, both in underdeveloped and developed countries. In this sense, for this cultural and evolution process, it is important to understand how the citizens are responding to these technological stimulus. This work describes and investigates how these themes are treated in the literature, using bibliometric method and data from SCOPUS, Web of Science (WoS), IEEEXplore. In this study, discussions will be focused on the technological area, however, with efforts in reaching distinct strategical areas that are nowadays working side by side on it.
Thays Aparecida de Oliveira; Alexandre C. Barbosa; Helena Ramalhinho; Miquel Oliver. Citizens and Information and Communication Technologies. 2018 International Joint Conference on Neural Networks (IJCNN) 2018, 1 -7.
AMA StyleThays Aparecida de Oliveira, Alexandre C. Barbosa, Helena Ramalhinho, Miquel Oliver. Citizens and Information and Communication Technologies. 2018 International Joint Conference on Neural Networks (IJCNN). 2018; ():1-7.
Chicago/Turabian StyleThays Aparecida de Oliveira; Alexandre C. Barbosa; Helena Ramalhinho; Miquel Oliver. 2018. "Citizens and Information and Communication Technologies." 2018 International Joint Conference on Neural Networks (IJCNN) , no. : 1-7.
Vitor Nazário Coelho; Haroldo Gambini Santos; Igor Machado Coelho; Puca Huachi Vaz Penna; Thays Aparecida de Oliveira; Marcone Jamilson Freitas Souza; Angelo Sifaleras. 5th International Conference on Variable Neighborhood Search (ICVNS'17). Electronic Notes in Discrete Mathematics 2018, 66, 1 -5.
AMA StyleVitor Nazário Coelho, Haroldo Gambini Santos, Igor Machado Coelho, Puca Huachi Vaz Penna, Thays Aparecida de Oliveira, Marcone Jamilson Freitas Souza, Angelo Sifaleras. 5th International Conference on Variable Neighborhood Search (ICVNS'17). Electronic Notes in Discrete Mathematics. 2018; 66 ():1-5.
Chicago/Turabian StyleVitor Nazário Coelho; Haroldo Gambini Santos; Igor Machado Coelho; Puca Huachi Vaz Penna; Thays Aparecida de Oliveira; Marcone Jamilson Freitas Souza; Angelo Sifaleras. 2018. "5th International Conference on Variable Neighborhood Search (ICVNS'17)." Electronic Notes in Discrete Mathematics 66, no. : 1-5.
Thays Aparecida de Oliveira; Vitor N. Coelho; Helena Ramalhinho; Marcone J.F. Souza; Bruno N. Coelho; Daniel C. Rezende; Igor M. Coelho. A VNS approach for book marketing campaigns generated with quasi-bicliques probabilities. Electronic Notes in Discrete Mathematics 2017, 58, 15 -22.
AMA StyleThays Aparecida de Oliveira, Vitor N. Coelho, Helena Ramalhinho, Marcone J.F. Souza, Bruno N. Coelho, Daniel C. Rezende, Igor M. Coelho. A VNS approach for book marketing campaigns generated with quasi-bicliques probabilities. Electronic Notes in Discrete Mathematics. 2017; 58 ():15-22.
Chicago/Turabian StyleThays Aparecida de Oliveira; Vitor N. Coelho; Helena Ramalhinho; Marcone J.F. Souza; Bruno N. Coelho; Daniel C. Rezende; Igor M. Coelho. 2017. "A VNS approach for book marketing campaigns generated with quasi-bicliques probabilities." Electronic Notes in Discrete Mathematics 58, no. : 15-22.
V.N. Coelho; I.M. Coelho; Marcone Souza; Frederico Guimarães; Eduardo Luz; A.C. Barbosa; G.G. Netto; R.C. Costa; A.A. Pinto; A. De P. Figueiredo; M.E.V. Elias; D.C.O.G. Filho; T.A. Oliveira. EEG time series learning and classification using a hybrid forecasting model calibrated with GVNS. Electronic Notes in Discrete Mathematics 2017, 58, 79 -86.
AMA StyleV.N. Coelho, I.M. Coelho, Marcone Souza, Frederico Guimarães, Eduardo Luz, A.C. Barbosa, G.G. Netto, R.C. Costa, A.A. Pinto, A. De P. Figueiredo, M.E.V. Elias, D.C.O.G. Filho, T.A. Oliveira. EEG time series learning and classification using a hybrid forecasting model calibrated with GVNS. Electronic Notes in Discrete Mathematics. 2017; 58 ():79-86.
Chicago/Turabian StyleV.N. Coelho; I.M. Coelho; Marcone Souza; Frederico Guimarães; Eduardo Luz; A.C. Barbosa; G.G. Netto; R.C. Costa; A.A. Pinto; A. De P. Figueiredo; M.E.V. Elias; D.C.O.G. Filho; T.A. Oliveira. 2017. "EEG time series learning and classification using a hybrid forecasting model calibrated with GVNS." Electronic Notes in Discrete Mathematics 58, no. : 79-86.
Cross-selling campaigns seek to offer the right products to the set of customers with the goal of maximizing expected profit, while, at the same time, respecting the purchasing constraints set by investors. In this context, a bi-objective version of this NP-Hard problem is approached in this paper, aiming at maximizing both the promotion campaign total profit and the risk-adjusted return, which is estimated with the reward-to-variability ratio known as Sharpe ratio. Given the combinatorial nature of the problem and the large volume of data, heuristic methods are the most common used techniques. A Greedy Randomized Neighborhood Structure is also designed, including the characteristics of a neighborhood exploration strategy together with a Greedy Randomized Constructive technique, which is embedded in a multi-objective local search metaheuristic. The latter combines the power of neighborhood exploration by using a Pareto Local Search with Variable Neighborhood Search. Sets of non-dominated solutions obtained by the proposed method are described and analyzed for a number of problem instances. HighlightsUse of profit variability measure in connection to the client response.Consider the Sharpe ratio index for calculating risk-adjusted profit in targeted offers.Introduction of a bi-objective direct marketing promotional campaign.Adaptation, description and use of a general Pareto local search.
Vitor N. Coelho; Thays Aparecida de Oliveira; Igor M. Coelho; Bruno N. Coelho; Peter J. Fleming; Frederico G. Guimarães; Helena Ramalhinho; Marcone J.F. Souza; El-Ghazali Talbi; Thibaut Lust. Generic Pareto local search metaheuristic for optimization of targeted offers in a bi-objective direct marketing campaign. Computers & Operations Research 2017, 78, 578 -587.
AMA StyleVitor N. Coelho, Thays Aparecida de Oliveira, Igor M. Coelho, Bruno N. Coelho, Peter J. Fleming, Frederico G. Guimarães, Helena Ramalhinho, Marcone J.F. Souza, El-Ghazali Talbi, Thibaut Lust. Generic Pareto local search metaheuristic for optimization of targeted offers in a bi-objective direct marketing campaign. Computers & Operations Research. 2017; 78 ():578-587.
Chicago/Turabian StyleVitor N. Coelho; Thays Aparecida de Oliveira; Igor M. Coelho; Bruno N. Coelho; Peter J. Fleming; Frederico G. Guimarães; Helena Ramalhinho; Marcone J.F. Souza; El-Ghazali Talbi; Thibaut Lust. 2017. "Generic Pareto local search metaheuristic for optimization of targeted offers in a bi-objective direct marketing campaign." Computers & Operations Research 78, no. : 578-587.
This article presents an Evolution Strategy (ES)--based algorithm, designed to self-adapt its mutation operators, guiding the search into the solution space using a Self-Adaptive Reduced Variable Neighborhood Search procedure. In view of the specific local search operators for each individual, the proposed population-based approach also fits into the context of the Memetic Algorithms. The proposed variant uses the Greedy Randomized Adaptive Search Procedure with different greedy parameters for generating its initial population, providing an interesting exploration–exploitation balance. To validate the proposal, this framework is applied to solve three different [Formula: see text]-Hard combinatorial optimization problems: an Open-Pit-Mining Operational Planning Problem with dynamic allocation of trucks, an Unrelated Parallel Machine Scheduling Problem with Setup Times, and the calibration of a hybrid fuzzy model for Short-Term Load Forecasting. Computational results point out the convergence of the proposed model and highlight its ability in combining the application of move operations from distinct neighborhood structures along the optimization. The results gathered and reported in this article represent a collective evidence of the performance of the method in challenging combinatorial optimization problems from different application domains. The proposed evolution strategy demonstrates an ability of adapting the strength of the mutation disturbance during the generations of its evolution process. The effectiveness of the proposal motivates the application of this novel evolutionary framework for solving other combinatorial optimization problems.
V. N. Coelho; I. M. Coelho; M. J. F. Souza; T. A. Oliveira; Luciano Perdigão Cota; M. N. Haddad; N. Mladenovic; R. C. P. Silva; F. G. Guimarães. Hybrid Self-Adaptive Evolution Strategies Guided by Neighborhood Structures for Combinatorial Optimization Problems. Evolutionary Computation 2016, 24, 637 -666.
AMA StyleV. N. Coelho, I. M. Coelho, M. J. F. Souza, T. A. Oliveira, Luciano Perdigão Cota, M. N. Haddad, N. Mladenovic, R. C. P. Silva, F. G. Guimarães. Hybrid Self-Adaptive Evolution Strategies Guided by Neighborhood Structures for Combinatorial Optimization Problems. Evolutionary Computation. 2016; 24 (4):637-666.
Chicago/Turabian StyleV. N. Coelho; I. M. Coelho; M. J. F. Souza; T. A. Oliveira; Luciano Perdigão Cota; M. N. Haddad; N. Mladenovic; R. C. P. Silva; F. G. Guimarães. 2016. "Hybrid Self-Adaptive Evolution Strategies Guided by Neighborhood Structures for Combinatorial Optimization Problems." Evolutionary Computation 24, no. 4: 637-666.
T.A. Oliveira; V.N. Coelho; Marcone Souza; D.L.T. Boava; F. Boava; I.M. Coelho. A hybrid variable neighborhood search algorithm for targeted offers in direct marketing. Electronic Notes in Discrete Mathematics 2015, 47, 205 -212.
AMA StyleT.A. Oliveira, V.N. Coelho, Marcone Souza, D.L.T. Boava, F. Boava, I.M. Coelho. A hybrid variable neighborhood search algorithm for targeted offers in direct marketing. Electronic Notes in Discrete Mathematics. 2015; 47 ():205-212.
Chicago/Turabian StyleT.A. Oliveira; V.N. Coelho; Marcone Souza; D.L.T. Boava; F. Boava; I.M. Coelho. 2015. "A hybrid variable neighborhood search algorithm for targeted offers in direct marketing." Electronic Notes in Discrete Mathematics 47, no. : 205-212.