@inproceedings{TrostClausHerrmann, author = {Trost, Marco and Claus, Thorsten and Herrmann, Frank}, title = {Employment of temporary workers and use of overtime to achieve volume flexibility using master production scheduling: monetary and social implications}, series = {Proceedings of the 35th ECMS International Conference on Modelling and Simulation (ECMS 2021): May 31st-June 2nd, 2021, United Kingdom}, booktitle = {Proceedings of the 35th ECMS International Conference on Modelling and Simulation (ECMS 2021): May 31st-June 2nd, 2021, United Kingdom}, editor = {Al-Begain, Khalid}, isbn = {978-3-937436-72-2}, doi = {10.7148/2021-0213}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-24906}, abstract = {Flexibility and in particular volume flexibility is an important topic for industrial manufacturing companies. In this context, the harmonization of the available and required capacity is a central task, especially with increasing fluctuations in customer demand. In classical approaches , this is considered only by the use of additional capacities and there are only a few approaches that combine aspects of personnel planning with production planning. Therefore, this article presents a linear optimization model for master production scheduling that includes aspects of personnel requirements planning. It is used to investigate different strategies for the use of overtime and temporary workers in order to achieve different levels of volume flexibility. With regard to the monetary and social impacts, the results indicate that overtime has a stronger influence to achieve volume flexibility than the use of temporary workers. However, both are affected by substantial deficits in human working conditions. But the results also imply a promising potential for improving the social aspects without a significant increase in costs.}, language = {en} } @inproceedings{TrostClausHerrmann, author = {Trost, Marco and Claus, Thorsten and Herrmann, Frank}, title = {Influence of Company Sizes in adapted Master Production Scheduling for Improving Human Working Conditions}, series = {Proceedings of the 34th International ECMS Conference on Modelling and Simulation, ECMS 2020}, booktitle = {Proceedings of the 34th International ECMS Conference on Modelling and Simulation, ECMS 2020}, editor = {Steglich, Mike}, publisher = {European Council for Modelling and Simulation}, isbn = {978-3-937436-68-5}, doi = {10.7148/2020-0287}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-24817}, pages = {287 -- 293}, abstract = {Sustainability is an important topic in production plan-ning and control. This article contributes in particular the to further research on the social dimension. It pre-sents a linear optimisation model for Master Produc-tion Scheduling in order to improve human working conditions. Existing approaches have already identified a considerable potential for improvements. Further-more, this article analyses the influence of the compa-ny size on workload and costs using an application with a high proportion of manual activities. It is demonstrat-ed that human working conditions can be improved independently from the company size without increas-ing costs. In addition, smaller companies tend to have a higher exhaustion and the workload affects the total costs more in smaller companies. Therefore, smaller companies might benefit more from an improvement in human working conditions.}, language = {en} } @inproceedings{TerbrackHerrmannClaus, author = {Terbrack, Hajo and Herrmann, Frank and Claus, Thorsten}, title = {Deviation in Energy Consumption on Aggregate Production Planning Level in Industry Practice}, series = {Proceedings of the 34th International ECMS Conference on Modelling and Simulation (ECMS 2020)}, booktitle = {Proceedings of the 34th International ECMS Conference on Modelling and Simulation (ECMS 2020)}, editor = {Steglich, Mike}, isbn = {978-3-937436-68-5}, doi = {10.7148/2020-0334}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-24804}, pages = {334 -- 340}, abstract = {In this article, we discuss energy consumption of producing firms on aggregate production planning. While almost constant energy consumption can be the case for a producing firm, highly fluctuating energy demand can occur as well. Together with volatile energy supply, e.g. due to renewable energy sources, this combination of fluctuating energy supply and demand can result in planning uncertainty and high energy costs. We propose different case studies in which such high deviation in the electricity consumption of a producing firm occurs due to aggregate production planning without appropriate consideration of energy consumption.}, language = {en} } @article{TerbrackFrankHerrmannetal., author = {Terbrack, Hajo and Frank, Ingo and Herrmann, Frank and Claus, Thorsten and Trost, Marco and G{\"o}tz, Matthias}, title = {A literature database on ecological sustainability in hierarchical production planning}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik}, number = {12}, publisher = {AKWI}, issn = {2296-4592}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-23539}, pages = {36 -- 40}, abstract = {This article describes a systematic literature search of research articles on the topics of ecological sustainability and production planning. Over 900 research articles deal intensively with these topics. These articles were catalogued and included in a database. They can be evaluated with an analysis tool, developed by the research group. The tool is available free of charge via a website of the research group.}, language = {en} } @inproceedings{Herrmann, author = {Herrmann, Frank}, title = {The Use of Simulation for Manufacturing Applications}, series = {Proceedings of the 12th International Conference on Advances in System Simulation, SIMUL 2020, 18.-22.10.2020 in Porto, Portugal}, booktitle = {Proceedings of the 12th International Conference on Advances in System Simulation, SIMUL 2020, 18.-22.10.2020 in Porto, Portugal}, publisher = {IARIA XPS Press}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-24899}, abstract = {This paper summarizes six presentations in a session of the track "Use of Simulation for Manufacturing Applications". The research work deals with the following key issues of this track: Modelling of process problems in manufacturing; Solutions of planning problems in manufacturing; Simulation of processes in manufacturing. This publication shows that the contributions in this track address research questions that are of high importance for industrial practice as well as current research directions such as stochastic optimization or the efficient search of large solution spaces.}, language = {en} } @unpublished{FrommeldHaugCurrleetal., author = {Frommeld, Debora and Haug, Sonja and Currle, Edda and Cerullo, Laura and Vetter, Miriam and Scorna, Ulrike and Weber, Karsten}, title = {Nutzung digitaler Assistenzsysteme in der Pflege}, publisher = {Research Gate}, doi = {10.13140/RG.2.2.11653.06888}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-33403}, pages = {19}, abstract = {Der Beitrag untersucht die Nutzung altersgerechter Assistenz-systeme und insbesondere Roboter. Die Studie basiert auf einem Scoping Review, das einen {\"U}berblick {\"u}ber aktuelle Forschungsergebnisse zum Einsatz von Robotern in der Pflege gibt, sowie auf Ergebnissen einer qualitativen und quantitativen Studie. In die-ser Untersuchung zeigen sich einige Diffusionshemmnisse, aber auch Chancen f{\"u}r den Einsatz, die anhand eines Fallbeispiels zum Einsatz von Telepr{\"a}senzrobotern zu Pflege und Therapie diskutiert werden.}, language = {de} } @unpublished{HaugSchnellWeber, author = {Haug, Sonja and Schnell, Rainer and Weber, Karsten}, title = {Impfbereitschaft mit einem COVID-19-Vakzin und Einflussfaktoren.}, doi = {10.13140/RG.2.2.23811.53283}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-32704}, abstract = {Hintergrund In Deutschland liegen unterschiedliche Befunde zur Akzeptanz von Schutzimpfungen gegen COVID-19 vor. Die Impfbereitschaft schwankt je nach Stichprobe, Messung und Erhebungszeitraum. Ziel der Arbeit (Fragestellung) Ziel der Studie ist die Untersuchung der Impfbereitschaft mit einem COVID-19-Vakzin an einer Zufallsstichprobe der Gesamtbev{\"o}lkerung. Der Schwerpunkt der Studie liegt in der Beschreibung des Zusammenhangs zwischen Impfbereitschaft, wahrgenommenen Risiken einer Erkrankung, den subjektiven {\"U}berzeugungen zu Nebenwirkungen und dem Vertrauen in Institutionen sowie dem Einfluss sozialer Bezugsgruppen. Material und Methoden Die Studie basiert auf einer telefonischen Ein-Themen-Bev{\"o}lkerungsbefragung zur Impfbereitschaft (n=2.014) vor der Zulassung eines COVID-19-Vakzins in Deutschland im November/Dezember 2020. Ergebnisse Die Impfbereitschaft liegt bei etwa 67 \% und steigt mit dem Anteil der impfbereiten Freunde und Bekannten und dem Vertrauen gegen{\"u}ber dem Robert-Koch-Institut, bei Zugeh{\"o}rigkeit zu einer Risikogruppe und der Erwartung gef{\"a}hrlicher Konsequenzen bei einer Erkrankung oder Unklarheit dar{\"u}ber. Erfahrungen mit einer Infektion bei den Befragten oder in ihrer sozialen Bezugsgruppe erh{\"o}hen die Impfbereitschaft. Eine {\"U}bersch{\"a}tzung der Wahrscheinlichkeit ernsthafter Nebenwirkungen bei Grippeimpfungen senkt die Impfbereitschaft gegen COVID-19. Auff{\"a}llig ist der Befund einer erheblichen {\"U}bersch{\"a}tzung der H{\"a}ufigkeit von ernsthaften Impfnebenwirkungen. Diskussion Die {\"U}bersch{\"a}tzung der H{\"a}ufigkeit ernsthafter Nebenwirkungen bei Impfungen weist erstens auf ein Informationsdefizit, zweitens auf weit verbreitete Fehlinformationen und drittens auf kognitive Probleme bei der Interpretation relativer H{\"a}ufigkeiten hin. Es werden Implikationen f{\"u}r eine Informationskampagne abgeleitet.}, language = {de} } @techreport{HaugVetterCerulloetal., author = {Haug, Sonja and Vetter, Miriam and Cerullo, Laura and Weber, Karsten}, title = {Nachhaltige Quartiersentwicklung in der Margaretenau in Regensburg: Abschlussbericht der Sozialstudie zu den Projekten MAGGIE und SAMM}, doi = {10.13140/RG.2.2.27139.37923}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-36366}, pages = {130}, abstract = {Die Bewohner und Bewohnerinnen sind Experten ihres Wohnens, daher wurden sie im Rahmen der „Nutzereinbindung" hinsichtlich ihrer Interessen und W{\"u}nsche in Bezug auf die energetische Sanierung im Rahmen des MAGGIE-Projektes befragt. Dieses Arbeitspaket erg{\"a}nzt aus sozialwissenschaftlicher Perspektive die technischen Untersuchungen und liefert Hintergrundinformationen zu den dort ans{\"a}ssigen Bewohnern und Bewohnerinnen. Dadurch sollen die Nutzer und Nutzerinnen der genossenschaftlichen Wohnung bei der energetischen Sanierung eingebunden werden. Dazu wurde ein Methoden-Mix ausgew{\"a}hlt: Es wurde eine schriftliche Haushaltsbefragung f{\"u}r das gesamte Quartier vor der Sanierungsmaßnahme durchgef{\"u}hrt, Informationsveranstaltungen im Quartier und an der OTH Regensburg angeboten sowie pers{\"o}nliche Interviews mit den acht Testhaushalten im Demonstrationsobjekt gef{\"u}hrt. Leitend f{\"u}r dieses Arbeitspaket sind die Ziele der Verbesserung der Lebensqualit{\"a}t und die Durchf{\"u}hrung einer sozialvertr{\"a}glichen Sanierung.}, subject = {Nachhaltigkeit}, language = {de} } @article{FroeseJainNiedermeieretal., author = {Froese, Vincent and Jain, Brijnesh and Niedermeier, Rolf and Renken, Malte}, title = {Comparing temporal graphs using dynamic time warping}, series = {Social Network Analysis and Mining}, volume = {10}, journal = {Social Network Analysis and Mining}, publisher = {Springer Nature}, doi = {10.1007/s13278-020-00664-5}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-38493}, pages = {1 -- 16}, abstract = {Within many real-world networks, the links between pairs of nodes change over time. Thus, there has been a recent boom in studying temporal graphs. Recognizing patterns in temporal graphs requires a proximity measure to compare different temporal graphs. To this end, we propose to study dynamic time warping on temporal graphs. We define the dynamic tem- poral graph warping (dtgw) distance to determine the dissimilarity of two temporal graphs. Our novel measure is flexible and can be applied in various application domains. We show that computing the dtgw-distance is a challenging (in general) NP-hard optimization problem and identify some polynomial-time solvable special cases. Moreover, we develop a quadratic programming formulation and an efficient heuristic. In experiments on real-world data, we show that the heuristic performs very well and that our dtgw-distance performs favorably in de-anonymizing networks compared to other approaches.}, language = {en} } @misc{Westner, author = {Westner, Markus}, title = {Rezension "Designed for Digital".}, series = {HMD Praxis Der Wirtschaftsinformatik}, journal = {HMD Praxis Der Wirtschaftsinformatik}, publisher = {Springer Nature}, doi = {10.1365/s40702-022-00877-6}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-38626}, language = {de} } @misc{OPUS4-3577, title = {Angewandte Forschung in der Wirtschaftsinformatik 2020 : Tagungsband zur 33. AKWI-Jahrestagung am 14.09.2020 ausgerichtet von der Hochschule Karlsruhe - Wirtschaft und Technik}, editor = {Nees, Franz and Stengel, Ingo and Meister, Vera G. and Barton, Thomas and Herrmann, Frank and M{\"u}ller, Christian and Wolf, Martin R.}, publisher = {mana-Buch}, address = {Heide}, isbn = {978-3-944330-66-2}, doi = {10.15771/978-3-944330-66-2}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-13840}, pages = {147}, language = {de} }