Publikationen

2020

• An empirically evaluated checklist for surveys in software engineering

  eri, J. S. M., Petersen, K. ., & Mendes, E. . (2020). An empirically evaluated checklist for surveys in software engineering. Information and Software Technology, 119, 106240.

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    • Petersen, Kai

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    • FLAIR - Flensburg Artificial Intelligence Research

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  • 2020
  • Journal Article
  • • Jefferson eri
    • Kai Petersen
    • Emilia Mendes

• Digitalisierung und Demenz

  Pornak, S. C., Gaede, H. ., & Lehr, B. . (2020). Digitalisierung und Demenz. Heilberufe, 72, 30–32.

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    • Pornak, Shirin Caroline

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  • 2020
  • Journal Article
  • • Shirin Pornak
    • Hannah Gaede
    • Bosco Lehr

• Tabletop Teleporter: Evaluating the Immersiveness of Remote Board Gaming

  Odenwald, J. ., Bertel, S. ., & Echtler, F. . (2020). Tabletop Teleporter: Evaluating the Immersiveness of Remote Board Gaming. In Proceedings of the 9TH ACM International Symposium on Pervasive Displays (S. 79–86). New York, NY, USA: Association for Computing Machinery. http://doi.org/10.1145/3393712.3395337

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  Communication with remote persons over a video link is common today, e.g. to connect with family members abroad, particularly during the COVID-19 pandemic. However, social activities such as board games are rarely shared in this way, as common video chat software does not support this scenario well. However, interactive tabletops provide inherent support for natural tangible interaction with items on the tabletop surface.We present the Tabletop Teleporter, a setup designed to merge two remote locations into a single shared interaction space. We evaluate the system using a board game, focusing on the perceived immersion and connectedness of participants. Our evaluation shows that most measures for the social quality of a remotely shared game are not significantly different from one played with co-located participants, and that players prefer our setup over a pure videochat scenario.

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    • Bertel, Sven

  • Abteilung/Einrichtung

    • CIVU – Center for Interaction, Visualization and Usability

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2020
  • Conference Paper
  • • Jasmin Odenwald
    • Sven Bertel
    • Florian Echtler
  • • interactive surface
    • social aspects
    • board game
    • tabletop
    • evaluation
    • gaming
    • tangible

• Managing unreliability in automotive supply networks – an extension of the joint economic lot size model

  Gruchmann, T. ., & Brandenburg, M. . (2020). Managing unreliability in automotive supply networks – an extension of the joint economic lot size model. International Journal of Operational Research, 39(1). http://doi.org/10.1504/IJOR.2020.108838

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  Within assembly network supply chains, supply disruptions can occur on every supplier-buyer link. Managing this network unreliability can help to reduce schedule instability and increases the overall efficiency of the supply chain accordingly. In this line, a stylised assembly network supply chain model is proposed with two suppliers and a single buyer using the joint economic lot sizing approach. This supply network can be disrupted by a shortage occurring at one of the two suppliers due to random machine breakdowns, which consequently creates dependent requirements variations affecting both the buyer and the entire network. First, the basic joint economic lot sizing model is extended by the said schedule instability. Second, a solution approach is presented concerning the determination of optimal lot sizes, the investment into the reliability of the supply network as well as the determination of safety stocks. Furthermore, the sensitivity of relevant model parameters is investigated by means of a numerical example. Managerial implications are accordingly derived focusing on the reliability of the supply network members and internal incentive structures.

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    • Brandenburg, Marcus

  • Fachbereich

    • Fachbereich 4: Wirtschaft

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  • 2020
  • Journal Article
  • • Tim Gruchmann
    • Marcus Brandenburg
  • • Schedule instability
    • Automotive supply networks
    • Joint economic lot sizing
    • Supply unreliability
    • Safety stocks

• Rapid Metabolome and Bioactivity Profiling of Fungi Associated with the Leaf and Rhizosphere of the Baltic Seagrass Zostera marina

  Petersen, L.-E. ., Marner, M. ., Labes, A. ., & Tasdemir, D. . (2020). Rapid Metabolome and Bioactivity Profiling of Fungi Associated with the Leaf and Rhizosphere of the Baltic Seagrass Zostera marina, Online-Ressource. http://doi.org/10.3390/md17070419

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  • 2020
  • Journal Article
  • • Lars-Erik Petersen
    • Michael Marner
    • Antje Labes
    • Deniz Tasdemir

• Construction of arithmetic secret sharing schemes by using torsion limits

  Tutdere, S. ., & Uzunkol, O. . (2020). Construction of arithmetic secret sharing schemes by using torsion limits. Hacettepe Journal of Mathematics and Statistics, 49, 638–647. http://doi.org/10.15672/hujms.460348

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    • Uzunkol, Osmanbey

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2020
  • Journal Article
  • • Seher Tutdere
    • Osmanbey Uzunkol

• Implementing a Library for Probabilistic Programming Using Non-Strict Non-Determinism

  Dylus, S. ., Christiansen, J. ., & Teegen, F. . (2020). Implementing a Library for Probabilistic Programming Using Non-Strict Non-Determinism. Theory and Practice of Logic Programming, 20, 147–175. http://doi.org/10.1017/S1471068419000085

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    • Christiansen, Jan

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    • Fachbereich 3: Information und Kommunikation

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  • 2020
  • Journal Article
  • • Sandra Dylus
    • Jan Christiansen
    • Finn Teegen

• Comparing Eye Movements Between Physical Rotation Interaction Techniques

  Bertel, S. ., & Wetzel, S. . (2020). Comparing Eye Movements Between Physical Rotation Interaction Techniques. In ACM Symposium on Eye Tracking Research and Applications. New York, NY, USA: Association for Computing Machinery. http://doi.org/10.1145/3379156.3391355

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  Recent studies have shown a number of procedural similarities between solving problems in mental and in physical rotation. Such similarities open up the interesting option to study mental rotation indirectly through physical rotation, with the advantage that physical rotation processes can be much more easily observed than mental ones. To better assess where solution processes in mental and physical rotation differ, though, it is important to know what influence any specific interaction method in physical rotation will have. We present results from a comparison of two such interaction methods: a one-handed, touch-based and a two-handed, ball-based method. Our analysis focuses on fixation durations and saccade amplitudes as proxies for mental load. Results show, importantly, that the choice of interaction method seems to matter but little. We therefore suggest that the existing findings of past studies that have compared mental to physical rotation are likely highly comparable, despite the fact that different interaction techniques were used.

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    • Bertel, Sven

  • Abteilung/Einrichtung

    • CIVU – Center for Interaction, Visualization and Usability

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    • Fachbereich 3: Information und Kommunikation

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  • 2020
  • Conference Paper
  • • Sven Bertel
    • Stefanie Wetzel
  • • physical rotation
    • fixation duration
    • saccade amplitude
    • mental rotation

• Rechnernetze: Ein einführendes Lehrbuch

  Riggert, W. ., & Lübben, R. . (2020). Rechnernetze: Ein einführendes Lehrbuch. Carl Hanser Verlag GmbH \& Company KG. http://doi.org/10.3139/9783446463691

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    • Lübben, Ralf

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    • Fachbereich 4: Wirtschaft

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  • 2020
  • Book
  • • Wolfgang Riggert
    • Ralf Lübben

• Untersuchung von opensource Datenbanksystemen auf Härtungsmaßnahmen unter Betrachtung des BSI IT-Grundschutz-Kompendium

  Bendig, H. . (2020). Untersuchung von opensource Datenbanksystemen auf Härtungsmaßnahmen unter Betrachtung des BSI IT-Grundschutz-Kompendium. Wismar University of Applied Sciences. Abgerufen von https://it-forensik.fiw.hs-wismar.de/index.php/Henner_Bendig

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  Die Relevanz von Opensource Software (OSS) steigt immer weiter an. Laut einer Studie der Bitkom setzen heutzutage 69% aller Unternehmen, bewusst OSS ein und bis zu 75% der Unternehmen planen OSS einzusetzen [1]. Gleichzeitig steigt die Gefahr von Angriffen auf moderne Technologien [2]. Datenbanksysteme (DBS) stehen heute schon auf Platz 4 der am häufigsten angegriffenen IT-Systeme [3]. Die Wichtigkeit von Daten im heutigen Zeitalter steigt noch immer weiter man, somit ist eine noch höhere Angriffswahrscheinlichkeit auf DBS wahrscheinlich. In dieser Arbeit wurde die Umsetzbarkeit des Bausteins „APP.4.3 – Relationale Datenbanken“ des IT-Grundschutzkompendium der Bundesagentur für Sicherheit in der Informationstechnik (BSI) in den Opensource DBS Oracle MySQL, PostgreSQL und MongoDB untersucht. Die drei gewählten Systeme sind die derzeit am meist verbreiteten Opensource Datenbanksysteme und bedürfen daher erhöhte Aufmerksamkeit [4] [5]. Organisatorische Maßnahmen wurden anhand von Empfehlungen, Vorgaben und Beispielen erarbeitet. Technische Maßnahmen wurden nach Möglichkeit direkt in den DBS umgesetzt. Sofern keine interne Umsetzung notwendig war, wurden Opensource Erweiterungen von Drittanbietern gesucht und getestet. Anhand der vom BSI bereitgestellten Auditorencheckliste wurden die Maßnahmen bewertet. Organisatorische Maßnahmen wurden aus der Wertung herausgenommen. Es wurden die Punktekategorien 0 für gar nicht umsetzbar, 1 für teilweise umsetzbar und 2 für komplett umsetzbar vergeben. MySQL erreichte 73% der möglichen Punkte, PostgreSQL 67% und MongoDB 47%. Ein Großteil der notwendigen Funktionen wird vom Originalhersteller zwar bereitgestellt aber ist nur in der kommerziell verfügbaren Variante der Systeme aktivierbar. Abstract: The relevance of Open Source Software (OSS) is constantly increasing. According to a study by Bitkom, 69% of all companies today use OSS consciously and up to 75% of companies plan to use OSS [1]. At the same time the danger of attacks on modern technologies is increasing [2]. Database systems (DBS) are already in 4th place among the most frequently attacked IT systems [3]. The importance of data in today s age is still increasing, so an even higher probability of attack on DBS is likely. In this thesis the feasibility of the module ‚APP.4.3 - Relational Databases‘ of the IT basic protection compendium of the German Federal Agency for Information Security (BSI) was examined in the open source DBS Oracle MySQL, PostgreSQL and MongoDB. The three chosen systems are currently the most widespread open source database systems and therefore require special attention [4] [5]. Organisational requirements were developed on the basis of recommendations, specifications and examples. Where possible, technical requirements were implemented directly in the DBS. As far as no internal implementation was possible, open source extensions of third-party providers were searched and tested. The requirements were evaluated using the auditor checklist provided by the BSI. Organizational requirements were removed from the evaluation. The point categories 0 for not realizable at all, 1 for partially realizable and 2 for completely realizable were assigned. MySQL achieved 73% of the possible points, PostgreSQL 67% and MongoDB 47%. Most of the required functions are provided by the original manufacturer but can only be activated in the commercially available version of the systems.

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    • Bendig, Henner

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    • IT-Security

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  • 2020
  • Miscellaneous
  • • Henner Bendig