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Prof. Dr. Christina Bauer

Fakultät Angewandte Informatik

Professor:innen

Professorin

vhb-Beauftragte

K 003

0991/3615-307

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Internetdokument

  • Janina Beduhn
  • Christina Bauer

Digitale Lehre als Treiber der Transformation

  • (2021)

Die Transformation zur Nachhaltigkeit benötigt eine Gesellschaft, die gemeinsam innovative Lösungen für globale Herausforderungen entwickelt. Die dafür notwendigen Kompetenzen müssen erlernt werden – schnell und möglichst breit angelegt. Die Verknüpfung digitaler Lehre mit dem Konzept der Bildung für nachhaltige Entwicklung (BNE) erleichtert den Zugang zu Bildung und befähigt Studierende zur Gestaltung von politischen, wirtschaftlichen und gesellschaftlichen Veränderungen. Die Integration von Künstlicher Intelligenz (KI) in die digitale Lehre bietet überdies neue Möglichkeiten bei der Vermittlung von Kompetenzen.
  • Angewandte Informatik
  • DIGITAL
Beitrag in Sammelwerk/Tagungsband

  • Christina Bauer
  • B. Ludwig

Schematic Maps and Indoor Wayfinding

pg. 23:1-23:14.

Schloss Dagstuhl - Leibniz-Zentrum für Informatik GmbH, Dagstuhl Publishing Saarbrücken/Wadern

  • 2019-09-06 (2019)

DOI: 10.4230/LIPIcs.COSIT.2019.23

Schematic maps are often discussed as an adequate alternative of displaying wayfinding information compared to detailed map designs. However, these depictions have not yet been compared and analyzed in-depth. In this paper, we present a user study that evaluates the wayfinding behaviour of participants either using a detailed floor plan or a schematic map that only shows the route to follow and landmarks. The study was conducted in an indoor real-world scenario. The depictions were presented with the help of a mobile navigation system. We analyzed the time it took to understand the wayfinding instruction and the workload of the users. Moreover, we examined how the depictions were visually perceived with a mobile eye tracker. Results show that wayfinders who use the detailed map spend more visual attention on the instructions. Nevertheless, the depiction does not help to solve the task: they also needed more time to orient themselves. Regarding the workload and the wayfinding errors no differences were found.
  • Angewandte Informatik
  • DIGITAL
Beitrag in Sammelwerk/Tagungsband

  • Christina Bauer
  • M. Müller
  • B. Ludwig
  • C. Zhang

Supporting Orientation During Indoor and Outdoor Navigation

pg. 153-161.

Springer International Publishing Cham

  • (2018)

DOI: 10.1007/978-3-319-63946-8_30

  • Angewandte Informatik
  • DIGITAL
Beitrag in Sammelwerk/Tagungsband

  • M. Ullmann
  • Christina Bauer
  • R. Jackermeier
  • B. Ludwig

Ain’t short sweet, when walking down that street?

pg. 223-224.

ETH Zurich Zürich

  • 2018 (2018)

DOI: 10.3929/ethz-b-000225624

Adjunct Proceedings of the 14th International Conference on Location Based Services
  • Angewandte Informatik
  • DIGITAL
Hochschulschrift

  • Christina Bauer

Unterstützung der Orientierung im Innenbereich. Analyse landmarkenbasierter Karten-Interfaces anhand des Blickverhaltens der Nutzer . Inaugural-Dissertation zur Erlangung der Doktorwürde

Universität Regensburg Regensburg Fakultät für Sprach-, Literatur- und Kulturwissenschaften

  • 2018 (2018)
  • Angewandte Informatik
  • DIGITAL
Zeitschriftenartikel

  • Christina Ohm
  • M. Müller
  • B. Ludwig

Evaluating indoor pedestrian navigation interfaces using mobile eye tracking

In: Spatial Cognition & Computation vol. 17 pg. 89-120.

  • (2017)

    ISSN: 1387-5868

DOI: 10.1080/13875868.2016.1219913

This article describes two user studies that evaluate different interface designs of indoor pedestrian navigation systems displaying landmarks. In particular, very reduced and abstract interfaces only showing route segments and landmarks are compared to depictions additionally showing floor plans. For this purpose, not only the time it took the participants to fulfill the task, but also eye-tracking data were analyzed. The first experiment (N = 81) was carried out with a smartphone. In the second study (N = 69), a device with a bigger screen was used so that gazes on different screen elements could be analyzed. Results show that the participants reach their destination faster with the abstract interface and, moreover, spend less visual attention on this interface.
  • Angewandte Informatik
  • DIGITAL
Zeitschriftenartikel

  • M. Müller
  • Christina Ohm
  • F. Schwappach
  • B. Ludwig

The path of least resistance. Calculating preference adapted routes for pedestrian navigation

In: KI (Künstliche Intelligenz) vol. 31 pg. 125-134.

  • (2017)

    ISSN: 0933-1875

DOI: 10.1007/s13218-016-0472-6

Several studies show that pedestrians do not simply take the shortest route to their destination. In this paper, we address the question, which other factors influence their route decisions. We present a landmark based pedestrian navigation system that guides users through indoor and outdoor areas and forms the foundation of our research regarding route preferences. To investigate the issue which basic preferences exist, a qualitative pre-study was conducted (N=21). In the main study we examined if routes chosen by participants in realistic scenarios deviate from the shortest possible route. With this, we explored if preferences, found in the pre-study, really influence the selection of routes (N=121). In the pre-study most participants stated that they want to take the shortest route. In addition to that, it was frequently mentioned that entities along the route, like escalators, elevators, crowded areas, or unsafe areas should be preferred or avoided. The main study revealed that the participants, which were all familiar with the surroundings, take detours in indoor parts compared to the shortest route. Moreover, the participants avoided elevators and routes that lead through cafeterias and lecture halls.
  • Angewandte Informatik
  • DIGITAL
Zeitschriftenartikel

  • Christina Ohm
  • S. Bienk
  • Z. Katz
  • M. Kattenbeck
  • B. Ludwig
  • M. Müller

Towards interfaces of mobile pedestrian navigation systems adapted to the user’s orientation skills

In: Pervasive and Mobile Computing vol. 26 pg. 121-134.

  • (2016)

    ISSN: 15741192

DOI: 10.1016/j.pmcj.2015.10.006

It is an open question, whether differently developed orientation skills require alternate pedestrian navigation interface designs for optimal self-localization during wayfinding. To address this issue we conducted two user studies in order to analyze different presentations of mobile maps. Evaluations were conducted in an outdoor ( ) and indoor () environment. We recorded the time it took participants to localize themselves with the help of salient objects. Significant results were found for both studies. Abstract interfaces support well-oriented users, whereas worse oriented ones profited from standard designs. Consequently, we make the case for user-adaptive pedestrian navigation interfaces.
  • Angewandte Informatik
  • DIGITAL
Beitrag in Sammelwerk/Tagungsband

  • Christina Bauer
  • M. Müller
  • B. Ludwig

Indoor pedestrian navigation systems

pg. 75-79.

ACM New York, NY, USA

  • (2016)

DOI: 10.1145/3012709.3012728

  • Angewandte Informatik
  • DIGITAL
Zeitschriftenartikel

  • Christina Ohm
  • M. Müller
  • B. Ludwig

Displaying landmarks and the user’s surroundings in indoor pedestrian navigation systems

In: Journal of Ambient Intelligence and Smart Environments vol. 7 pg. 635-657.

  • (2015)

    ISSN: 18761364

DOI: 10.3233/AIS-150335

In this paper a holistic approach for developing indoor pedestrian navigation systems is described: first of all, a map modeling toolkit is introduced that allows for the simple and fast creation of environment models and calculation of preference-based routes in various indoor areas. Furthermore, it is shown that landmarks can be easily derived from this model. The landmark selection is based on three user studies that show that “functional” landmarks like doors and stairs are suitable for navigation. The main study was conducted with 64 participants to evaluate different depictions of the user’s surroundings including landmarks. For this purpose an abstract graph-like navigation prototype that uses the data of the modeling toolkit was compared to a depiction additionally showing a mobile map. Results indicate that especially users with a good sense of direction perform significantly better with the graph-like interface in terms of task completion time.
  • Angewandte Informatik
  • DIGITAL
Zeitschriftenartikel

  • Christina Ohm

Bitte nicht stören – Zur Vorhersage des Workloads von Autofahrern unter Verwendung von Smartphone-Sensordaten [Estimating the Driver’s Workload. Using Smartphone Data to Adapt In-Vehicle Information Systems]

In: Information - Wissenschaft & Praxis vol. 35

  • (2015)

    ISSN: 1434-4653

DOI: 10.1515/iwp-2015-0039

  • Angewandte Informatik
  • DIGITAL
Zeitschriftenartikel

  • M. Kattenbeck
  • M. Müller
  • Christina Ohm
  • B. Ludwig

Der Weg ist das Ziel – Fußgängernavigation ist Forschung zu Information Behavior

In: Information - Wissenschaft & Praxis vol. 66

  • (2015)

    ISSN: 1434-4653

DOI: 10.1515/iwp-2015-0012

  • Angewandte Informatik
  • DIGITAL
Beitrag in Sammelwerk/Tagungsband

  • Christina Ohm
  • B. Ludwig
  • S. Gerstmeier

Photographs or Mobile Maps? Displaying Landmarks in Pedestrian Navigation Systems

pg. 302-312.

Verlag Werner Hülsbusch Glückstadt

  • (2015)
Research Question: Should photographs of landmarks be displayed in indoor pedestrian navigation systems? At which point of the navigational task can these interfaces support the user? Approach: Two different navigation prototypes were implemented: one of them used photographs of landmarks to explain the route, whereas the other one showed a mobile map. Method: The time it took the users to orient themselves was recorded with the smartphone application and served as a depended variable. Results: Users performed significantly better with the navigation prototype using photographs, especially if the navigation instruction is given at a route point with a high branching factor and thus high complexity.
  • Angewandte Informatik
  • DIGITAL
Zeitschriftenartikel

  • B. Ludwig
  • M. Müller
  • Christina Ohm

Empirical Evidence for Context-aware Interfaces to Pedestrian Navigation Systems

In: KI (Künstliche Intelligenz) vol. 28 pg. 271-281.

  • (2014)

    ISSN: 0933-1875

DOI: 10.1007/s13218-014-0333-0

For geographical mobile search tasks it is rarely sufficient to assist users identifying what location they are currently looking for, e.g. a store, cafe or museum. Often the user needs support in being guided to a retrieved location in a physical space. This means that mobile search is strongly connected with navigation. There is a large body of work indicating that navigating towards points of interest is challenging for many people. In this work we explore how to support best this part of the task by investigating how objects in the physical world—landmarks—can be used in information systems to guide people to their desired location. We present the results of a series of eye tracking studies on the orientation behavior of persons executing indoor navigation tasks. The main finding of the studies is that the contextual relevance and the function of a landmark for completing the task efficiently matters more than the context-free salience of the same landmark. The findings have implications for the design of mobile search systems that support geographical search tasks as they lead to new context-adaptive strategies for navigation systems to explain routes. We provide evidence that even the interface has to adapt its content on the state of the navigation task and the current spatial context in order to provide user- and context-adaptive intuitive interaction.
  • Angewandte Informatik
  • DIGITAL
Beitrag in Sammelwerk/Tagungsband

  • M. Müller
  • Christina Ohm
  • B. Ludwig

Path Network Modeling of Public Buildings

Unpublished

  • 2014 (2014)

DOI: 10.13140/2.1.2108.1609

In the field of pedestrian navigation indoor areas take up a special position, as indoor maps are rarely available, footpaths usually have a high branching degree and users often lack an overview of the environment. To overcome this problems we created a web toolkit that assists with the creation of path networks. This lays the foundation for preference-based indoor routing and landmark navigation. Furthermore, it helps to improve existing localization systems.
  • Angewandte Informatik
  • DIGITAL
Beitrag in Sammelwerk/Tagungsband

  • Christina Ohm
  • M. Müller
  • B. Ludwig
  • S. Bienk

Where is the landmark? Eye tracking studies in large-scale indoor environments

  • (2014)
  • Angewandte Informatik
  • DIGITAL
Beitrag in Sammelwerk/Tagungsband

  • S. Bienk
  • M. Kattenbeck
  • B. Ludwig
  • M. Müller
  • Christina Ohm

I want to view it my way: interfaces to mobile maps should adapt to the user's orientation skills

pg. 1-9.

ACM New York, NY, USA

  • (2013)

DOI: 10.1145/2541831.2541841

  • Angewandte Informatik
  • DIGITAL
Beitrag in Sammelwerk/Tagungsband

  • Christina Ohm
  • B. Ludwig

Estimating the Driver’s Workload

vol. 8077 pg. 130-139.

Springer Berlin Heidelberg Berlin, Heidelberg

  • (2013)

DOI: 10.1007/978-3-642-40942-4_12

The use of in-vehicle information systems has increased in the past years. These systems assist the user but can as well cause additional cognitive load. The study presented in this paper was carried out to enable workload estimation in order to adapt information and entertainment systems so that an optimal driver performance and user experience is ensured. For this purpose smartphone sensor data, situational factors and basic user characteristics are taken into account. The study revealed that the driving situation, the gender of the user and the frequency of driving significantly influence the user’s workload. Using only this information and smartphone sensor data the current workload of the driver can be estimated with 86% accuracy.
  • Angewandte Informatik
  • DIGITAL
Zeitschriftenartikel

  • B. Ludwig
  • S. Bienk
  • M. Kattenbeck
  • M. Müller
  • Christina Ohm
  • M. Einmal
  • T. Glaser
  • M. Hackl
  • M. Oreskovich
  • L. Schubart

Do You Recognize That Building’s Façade?

In: KI (Künstliche Intelligenz) vol. 27 pg. 241-246.

  • (2013)

    ISSN: 0933-1875

DOI: 10.1007/s13218-013-0253-4

With the computational power of modern smartphones constantly increasing, resource intensive applications are becoming feasible to an ever growing extent. In this paper, we report on a research project recently started. Its aim is to develop an application for smartphones that combines pedestrian and public transport navigation including the computation of routes consisting of pedestrian routes and public transport trips and intuitive user guidance at any time of the trip. In particular, we focus on intuitive user guidance based on (LMs) in the surroundings of the user. For this reason, we use collaborative approaches to collect LMs and data about them.
  • Angewandte Informatik
  • DIGITAL

Kernkompetenzen

  • Informationsverhalten verstehen
  • KI-gestützte Assistenzsysteme, insbesondere in der Lehre
  • Nutzer:innen-zentrierte Konzeption und Evaluation
  • Eye-Tracking
  • Geoinformationssysteme, insbesondere Fußgänger-Navigationssysteme
  • Datenanalyse

Forschungs- und Lehrgebiete

  • Advanced Machine Learning
  • Assistenzsysteme
  • Human Factors und Mensch-Maschine-Interaktion
  • KI-Anwendungen
  • Mathematik
  • Projektmanagement

Vita

Lebenslauf

  • 2020: PROFESSUR für Künstliche Intelligenz und Digitale Lehre an der Technischen Hochschule Deggendorf
  • 2019: SOFTWAREENTWICKLERIN (AKDB Regensburg) - Schwerpunkt auf Requirements Engineering
  • 2018: STUDIENGANGSKOORDINATORIN (Universität Regensburg) - Campus-Netzwerk für Digitale Geistes- und Sozialwissenschaften téchnē
  • 2018: PROMOTION INFORMATIONSWISSENSCHAFT (Universität Regensburg)
  • 2015: WISSENSCHAFTLICHE MITARBEITERIN (Universität Regensburg) - Schwerpunkt auf Lehrtätigkeiten in der Softwaregestaltung und Datenauswertung
  • 2012: PROJEKTANGESTELLTE (Universität Regensburg) - BMWi-gefördertes Verbundprojekt NADINE (Fußgänger-Navigationssystem-Entwicklung)
  • 2012: MASTER INFORMATIONSWISSENSCHAFT (Universität Regensburg)
  • 2010: BACHELOR INFORMATIONSWISSENSCHAFT (Universität Regensburg) - 2. Hauptfach Betriebswirtschaftslehre

Auszeichnungen und Zertifikate

  • GERHARD LUSTIG AWARD (1. Platz) - Beste deutschsprachige informationswissenschaftliche Masterarbeit in den Jahren 2012 und 2013
  • BEST PAPER AWARD NOMINEE - Mobile and Ubiquitous Multimedia 2013
  • IREB® Certified Professional for REQUIREMENTS ENGINEERING