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Proceedings of the Pannonian Conference on Advances in Information Technology (PCIT 2019) 30 May – 1 June 2019 University of Pannonia, Veszprém, Hungary Editor: István Vassányi Cover design: Viktória Nagy Published by the University of Pannonia, Faculty of Information Technology ISBN 978-963-396-127-8 © 2019 University of Pannonia, Faculty of Information Technology. All rights reserved Preface The Pannonian Conference on Advances in Information Technology (PCIT 2019) was organized by the Faculty of Information Technology, University of Pannonia, Veszprém, Hungary together with the Information Technology in Healthcare Work Committee and the Operation Research Work Committee of the Regional Centre of the Hungarian Academy of Sciences, Veszprém, Hungary on May 31 – June 1, 2019. The scientific program of the conference consisted of classical and interdisciplinary areas of information technology including, e.g., software technology, intelligent systems, image processing, data analysis, process modeling and optimization, medical and industrial applications. After a two-round peer review process, 36 papers of 82 co-authors from 16 academic institutes in 6 countries were accepted for oral presentation at the conference, out of which 29 are included in this proceedings as full papers. I thank the members of the Scientific Committee for all their efforts in putting together the scientific program, and I thank all authors and participants for their contributions. Ferenc Hartung Dean Faculty of Information Technology University of Pannonia PCIT 2019 Scientific Committee Chair: Hangos, Katalin, University of Pannonia Members: Bari, Ferenc, University of Szeged Bodó, Zalán, Babes-Bolyai University Borbély, Ákos, Óbuda University Gál, Zoltán, University of Debrecen Gerzson, Miklós, University of Pannonia Gyimóthy, Tibor, University of Szeged Hartung, Ferenc, University of Pannonia Heckl, István, University of Pannonia Kis, Tamás, Hungarian Academy of Sciences Institute for Computer Science and Control Kiss, Attila, Eötvös Loránd Univesity Kovács, Levente, Óbuda University Krész, Miklós, University of Szeged Kruzslicz, Ferenc, University of Pécs Márton, Lőrinc, Sapientia Hungarian University of Transylvania Stark-Werner, Ágnes, University of Pannonia Szederkényi Gábor, Pázmány Péter Catholic University Várady, Géza, University of Pécs Vassányi, István, University of Pannonia Contents Session 1: Mathematics and computer science Application of the maximal bipartite matching algorithm to schedule medical appointments with quotas ...................................................................................... 1 András Éles and István Heckl Hybrid time-quality-cost trade-off problems .......................................................... 8 István Szalkai and Zsolt Kosztyán Distance domination and vertex partitions ........................................................... 16 Allan Frendrup, Zsolt Tuza and Preben Dahl Vestergaard Strongly possible keys .......................................................................................... 23 Munqath Alattar and Attila Sali Data Linking with String Matching … ................................................................ 29 Ferenc Kruzslicz and Miklós Hornyák Session 2: Industrial and engineering applications I Undersampled On-Off Keying Camera Communication Methods for Beacon ID Transmission ........................................................................................................ 36 Márk Rátosi and Gyula Simon Validation of a custom human centric luminaire design based on on-site experiments .......................................................................................................... 42 Dávid Noel Tóth and Ferenc Szabó Session 3: Health informatics Modeling of phenylalanine metabolism and its medical relevance ...................... 49 Gergely Svab, Gábor Szederkényi and László Tretter Improved stress detection method for Ambient Assisted Living applications ...... 59 Benedek Szakonyi, István Vassányi and István Kósa Automatic Removal of EOG artefacts from EEG based on Independent Component Analysis ............................................................................................ 65 Mohamed F. Issa, Zoltan Juhasz and György Kozmann Analysis of patient pathways in acute stroke care episodes .................................. 71 István Vassányi, Tamás Kováts, György Surján and Zoltán Nagy Session 4: Industrial and engineering applications II Predicting user actions under time constraints in a divided attention task ....................................................................................................................... 77 Rachid Rhyad Saboundji and Róbert Adrian Rill Investigating the visual forms of dynamic electronic work instructions to improve learning efficiency and productivity in assembly processes ................................. 84 Ágnes Lipovits, Katalin Tömördi, Zsolt Vörösházi and Réka Jinda An optimization based algorithm for conflict-free navigation of autonomous guided vehicles ..................................................................................................... 90 Balázs Csutak, Tamás Péni and Gábor Szederkényi Using modified MANET protocols in emergency networking ............................. 98 Veronika Szűcs and Mahmoud Wassouf Session 5: Mobile and community applications Designing gamified virtual reality applications with sensors – A gamification study ................................................................................................................... 105 Tibor Guzsvinecz, Veronika Szűcs and Cecilia Sik Lanyi Walking Warrior ................................................................................................ 113 Gergo Laszlo Proszenyak, Adrian Arvai, Cecilia Sik-Lanyi, Adam Czank, Arpad Kelemen, Shannon Cerbas, Barbara van De Castle, Yulan Liang, Csaba Simon and Ferenc Revesz Re-Creation, an android game ............................................................................ 119 Barbara Bodor, Patrícia Szabó and Cecilia Sik-Lanyi Learning to play snake using genetic neural networks ....................................... 126 Bence Halmosi and Cecilia Sik-Lanyi Session 6: Process modeling and optimization Decision supporting tool for scheduling of production processes considering human factors ..................................................................................................... 133 Gyula Ábrahám, György Dósa, Tibor Dulai and Ágnes Werner-Stark Simulation models for transporting oil materials in pipelines ............................ 139 Balázs Csontos and István Heckl Colored Petri Net based Monitoring and Diagnosis of Technological Systems . 145 Adrien Leitold, Anna Ibolya Pózna and Miklós Gerzson Session 7: Applications in social sciences and control Ethical Problems Connected with Use of Smart and Intelligent Learning Environment ....................................................................................................... 155 Boris Aberšek, Metka Kordigel Aberšek, Cecilia Sik Lanyi and Andrej Flogie Hungary’s digital entrepreneurship based on the European Index of Digital Entrepreneurship Systems .................................................................................. 164 László Szerb, Éva Komlósi and Mónika Tiszberger Aggregation approaches for distributed flexibility aggregators .......................... 174 István Balázs, Attila Fodor and Attila Magyar A brief review on the challenges of Internet of Things and their solutions ........ 181 Tibor Guzsvinecz, Tibor Medvegy and Veronika Szűcs Session 8: Data analysis Application of Text Mining Methods on Unstructured Hungarian Echocardiogram Documents ......................................................................................................... 187 Szabolcs Szekér and Ágnes Vathy-Fogarassy A machine learning algorithm for automatic structure detection and pattern analysis ............................................................................................................... 194 Zsolt Vassy and István Vassányi For the full PCIT 2019 conference programme including also the oral presentations without published papers please see https://pcit2019.mik.uni-pannon.hu/images/program/PCIT_program_english.pdf Application of the maximal bipartite matching algorithm to schedule medical appointments with quotas András Éles1, István Heckl1 1Department of Computer Science and Systems Technology, University of Pannonia, Veszprém, Hungary, [email protected] Abstract: A scheduling problem involving the determination of medical examination and treatment times, where quotas can be given as a requirement, is solved by a reformulation as the maximal bipartite matching problem. Finding appointment times for a patient can be nontrivial. S pecific limitations may arise, including time windows for the examination, as well as reserved times. The problem becomes difficult if many examinations must be scheduled at once. Also, performance volume quota can be included for s pecific types of examinations. An algorithm is developed which addresses the scheduling problem and the aforementioned constraints, provided that specific assumptions are made about both the problem and its solution itself. Computational results show that large scale problems can be solved in acceptable time with this method. Introduction Nowadays, management of healthcare institutions is a problem, where complex decisions must be made fast. Therefore it is mostly supported by computer systems. It is usual