Operational Research in the Digital Era – ICT Challenges: 6th International Symposium and 28th National Conference on Operational Research, Thessaloniki, Greece, June 2017 PDF
Preview Operational Research in the Digital Era – ICT Challenges: 6th International Symposium and 28th National Conference on Operational Research, Thessaloniki, Greece, June 2017
Springer Proceedings in Business and Economics Angelo Sifaleras Konstantinos Petridis E ditors Operational Research in the Digital Era – ICT Challenges 6th International Symposium and 28th National Conference on Operational Research, Thessaloniki, Greece, June 2017 Springer Proceedings in Business and Economics Moreinformationaboutthisseriesathttp://www.springer.com/series/11960 Angelo Sifaleras • Konstantinos Petridis Editors Operational Research in the Digital Era – ICT Challenges 6th International Symposium and 28th National Conference on Operational Research, Thessaloniki, Greece, June 2017 123 Editors AngeloSifaleras KonstantinosPetridis DepartmentofAppliedInformatics DepartmentofAppliedInformatics UniversityofMacedonia UniversityofMacedonia Thessaloniki,Greece Thessaloniki,Greece ISSN2198-7246 ISSN2198-7254 (electronic) SpringerProceedingsinBusinessandEconomics ISBN978-3-319-95665-7 ISBN978-3-319-95666-4 (eBook) https://doi.org/10.1007/978-3-319-95666-4 LibraryofCongressControlNumber:2018955699 ©SpringerNatureSwitzerlandAG2019 Thisworkissubjecttocopyright.AllrightsarereservedbythePublisher,whetherthewholeorpartof thematerialisconcerned,specificallytherightsoftranslation,reprinting,reuseofillustrations,recitation, broadcasting,reproductiononmicrofilmsorinanyotherphysicalway,andtransmissionorinformation storageandretrieval,electronicadaptation,computersoftware,orbysimilarordissimilarmethodology nowknownorhereafterdeveloped. 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ThisSpringerimprintispublishedbytheregisteredcompanySpringerNatureSwitzerlandAG Theregisteredcompanyaddressis:Gewerbestrasse11,6330Cham,Switzerland Foreword I am very pleased to introduce this volume of proceedings from the above event, co-organized by the Hellenic Operational Research Society (HELORS) and the Department of Applied Informatics of the University of Macedonia, Thessaloniki, Greece. Thepapersinthisvolumeareasampleofthedynamicandvariedresearchtaking placeinthebroadfieldsofoperationalresearchandinformaticsinGreece. Twoofthepapersaddresstheissueofforecastingusingneuralnetworks,onein the field of energy consumption and the other in the field of employment. Neural networksareanalternativetothemoretraditionaltimeseriesandeconometrically basedforecastingmethods,obviatingtheneedformodelspecificationinthelatter and the inherent risk of misspecification. Neural networks show much promise in thefieldofforecasting. Twopapersexaminecloudcomputing,onefromatraditionalandtheotherfrom a less usual perspective. In the first case, the importance of cloud computing in e-governmentisexplored.Inthesecondcase,cloudcomputingisseenfromagame- theoretic-perspective.Pricingstrategiesforcloudsystemscanbeaddressedusinga game theoretic approach. Both papers show how the two fields of informatics and operationalresearchcanbeusedjointlytoaddressgovernanceandbusinessissues. Anotherinterestingpaperholdingtheprospectofinterdisciplinaryresearch,isthat addressingtheissueofcondition-basedmaintenance(CBM).Itdealswiththevery issues addressed in servitization where the object traded is not a physical asset, suchasanaircraftengine,butrathertheserviceofit,withtheengineremainingthe propertyofthemanufacturerAlinkbetweenCBMandservitizationisclearlyworth exploringfurther. There are also in this volume, papers on social media analysis and on digital currency adoption. These two areas are growing in use exponentially offering a productive seam for further research. Another paper offering an interesting perspective is that on the distinction between soft and technical skills and their importanceforprospectiveemployersofgraduatesfromManagementScienceand Informaticsdepartments. v vi Foreword Icongratulatetheorganizersonputtingtogetheraninformativeconferenceand encouragetheauthorsfeaturedinthisvolumetopursuewithvigortheirinteresting researchagendas. ProfessorinManagementSciences EmmanuelThanassoulis AstonBusinessSchool AstonUniversity BirminghamB47ET UnitedKingdom Preface ItisourgreatpleasuretointroducethisbookentitledOperationalResearchinthe Digital Era: ICT Challenges, of the series Springer Proceedings in Business and Economics, which contains selected, refereed proceedings from the 6th Interna- tionalSymposium&28thNationalConferenceonOperationalResearch(HELORS 2017).Thisconferenceisanestablishedannualeventattendedbyalargenumberof operationalresearch(OR)scientists,instructors,andstudents,mainlyfromGreece butalsofromalloverEurope. The purpose of the Conference is to disseminate recent scientific advances in thefieldofoperationalresearchandmanagementscienceinGreeceandtopromote internationalcooperationamongresearchersandpractitionersworkinginthefield. Thespecificaimofthisyear’sConferenceistohighlighttheroleandimportanceof OR in the digital era and the underlying ICT challenges (Operational Research in theDigitalEra:ICTChallenges). Three plenary talks were given by eminent researchers in the field of opera- tional research. Professor John N. Tsitsiklis opened the conference by presenting an overview of dynamic programming. Professor Georgios Doukidis addressed businesstransformationstrategiesusingdata-driveninnovationsintheretailsupply- chains.FinallyProfessorPanosM.Pardalosdemonstratedhowtousequantification of network dissimilarities and its practical implications in several research areas that include bioinformatics, climate dynamics, percolation in networks, network robustness,andmodelselection. Apart from the funds provided by the co-organizers, the conference attracted thesponsorshipofwell-knowncompanies,suchasMarathonDataSystems,Open Technology Services (OTS), ATLANTIS Consulting SA, Egnatia Odos AE, and Geotechnical Chamber of Greece. Other partners of the conference include the GreekMinistryofMacedoniaandThrace,OK!Thess,andtheAristotleUniversity ofThessaloniki. This year the conference was co-organized by the Department of Applied InformaticsoftheUniversityofMacedoniaandtheHellenicOperationalResearch Society (HELORS). It took place in the University of Macedonia, Greece, 8–10 June2017.TheconferencechairswereProfessorM.Vlachopoulou,G.Kalfakakou, vii viii Preface and B. Manos. Around 94 papers were presented in 20 streams, including meta- heuristics, multicriteria decision-making, data envelopment analysis, supply chain optimization, etc. Apart from Greece, the conference received submissions from Algeria,Finland,Serbia,Slovakia,Spain,Turkey,UnitedArabEmirates,theUnited Kingdom, and the United States. After the reviewing process, the following 13 paperswereeventuallyacceptedforpublication: Thebookbeginswiththemanuscript“FinalEnergyConsumptionForecastingby Applying Artificial Intelligence Models” by G.N. Kouziokas, A. Chatzigeorgiou, and K. Perakis. The authors apply artificial neural networks in order to build and compare neural network forecasting models for predicting the final energy consumption. The second paper presents a short survey of recent game-theoretic approaches applied in P2P networks and cloud systems, and it is titled “Game theoretic approaches in cloud and P2P networks: Issues and challenges.” G. Koloniari and A. Sifaleras provide a classification of game-theoretic approaches dealing with a variety of problems encountered in the design and deployment of P2P and cloud systems. BousdekisandG.Mentzas,inthepaper“Aproactivemodelforjointmaintenance andlogisticsoptimizationintheframeofIndustrialInternetofThings,”proposea proactive event-driven model for joint maintenance and logistics optimization in a sensor-based, data-rich industrial environment. The authors have validated their approachinarealindustrialenvironment(oilandgasindustry)andalsoevaluated theirresultsusingacomparativeandsensitivityanalysis. The fourth paper studies the actual use of digital currency by companies and freelancers globally with an emphasis in the European Union. I. Roussou and E. Stiakakis in their paper titled “Adoption of Digital Currencies: The Companies Perspective”presenttheresultsofanonlineacademicsurveyandapplyacombina- tionofDiffusionofInnovation(DOI)Theory(mainlyInnovationDecisionProcess Model, IDPM) and Technology Acceptance Model (TAM), in order to investigate theactualuseofdigitalcurrency. In the paper by G.N. Kouziokas titled “Unemployment Prediction in UK by Using a Feedforward Multilayer Perceptron,” the aim is to implement prediction modelsbyusingartificialneuralnetworksinordertoforecastunemployment.The authorconsideredseveralsocioeconomicfactorsandevaluatedtheirfindingsusing realdatacollectedfromtheofficialwebsiteoftheUKOfficeforNationalStatistics. Thesixthpaperistitled“PerformanceEvaluationofRoutingProtocolsforBIG Data application” and authored by E. Balasas, K. Psannis, and M. Roumeliotis. It illustrates how dynamic routing protocols perform in real-time applications. The proposedstudyassesstheuseofthreeinteriorgatewayroutingprotocolsforvideo conferencingandVoIP. S.P. Gayialis, G.D. Konstantakopoulos, and I.P. Tatsiopoulos, in the paper “Vehicle Routing Problem for Urban Freight Transportation: A Review,” present a literature review from Scopus scientific database of the vehicle routing problem (VRP)forurbanfreighttransportation.Theauthorsdiscusssomecriticalinsightsof thestudyandanalyzethetrendsoftheVRPforurbanfreighttransportation. Preface ix The eighth paper is titled “Development of a framework for the assessment of softskillsintheICTsector”andauthoredbyV.A.Valavosiki,E.Stiakakis,andA. Chatzigeorgiou.Theauthorsaimtodevelopaframeworkfortheassessmentofboth technicalandnontechnicalskillsintheinformationtechnologyandcommunications sector. In the paper by I. Nanos, V. Manthou, and E. Androutsou titled “Cloud Computing Adoption Decision in E-government,” the relationship between cloud computingande-governmentisinvestigated.Theauthorshighlighttheimportance ofcloudcomputingadoptioninpublicadministrationandofferinsightsontheway thatcloudcomputingcancontributetothesuccessfuldeploymentofe-government services. Thebookcloseswiththemanuscript“Aunifiedframeworkfordecision-making process on social media analytics” by N. Misirlis and Maro Vlachopoulou. The authors consider the procedures that have to be followed in order to achieve the most optimized choice of social media analytics methodology initiating the 4P’s procedure(people,purpose,platform,andprocess). Thessaloniki,Greece AngeloSifaleras Thessaloniki,Greece KonstantinosPetridis April2018
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