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Publications


Open list in Research Information System

2021

A Comparison of Multi-View Learning Strategies for Satellite Image-based Real Estate Appraisal

J. Kucklick, O. Müller, in: The AAAI-21 Workshop on Knowledge Discovery from Unstructured Data in Financial Services, 2021


2020

Hardening Soft Information: A Transformer-Based Approach to Forecasting Stock Return Volatility

M. Caron, O. Müller, in: 2020 IEEE International Conference on Big Data (Big Data), 2020

Historically, the field of financial forecasting almost exclusively relied on so-called hard information – i.e., numerical data with well-defined and unambiguous meaning. Over the last few decades, however, researchers and practitioners alike have, following the advances in natural language understanding, started recognizing the benefits of integrating soft information into financial modelling. In line with the above, this paper examines whether contemporary attention-based sequence-to-sequence models, known as Transformers, can help improve stock return volatility prediction when applied to corporate annual reports. Using a publicly available benchmark dataset, we show, in an empirical analysis, that out-of-the-box Transformer models have the ability to outmatch current state-of-the-art results and, more importantly, that our proposed feature-based Transformer approach can outperform a robust numerical baseline. To the best of our knowledge, this is the first empirical study focusing on stock return volatility prediction (1) to ever experiment with state-of-the-art Transformer architectures and (2) to demonstrate that a model based solely on soft information can surpass its numerical counterpart. Furthermore, we show that by including an additional numerical feature into our best text-only model, we can push the performance of our model even further, suggesting that soft and hard information contain different predictive signals.


    Design Principles for Explainable Sales Win-Propensity Prediction Systems

    T. Thiess, O. Müller, L. Tonelli, in: International Conference on Wirtschaftsinformatik, 2020


    BUSINESS INTELLIGENCE & ANALYTICS COST ACCOUNTING: AN ACTION DESIGN RESEARCH APPROACH

    R. Grytz, A. Krohn-Grimberghe, O. Müller, in: European Conference on Information Systems, 2020


    Location, location, location: Satellite image-based real-estate appraisal

    J. Kucklick, O. Müller, in: Sixteenth Symposium on Statistical Challenges in Electronic Commerce Research (SCECR), 2020


    2019

    Conceptualizing smart service systems

    D. Beverungen, O. Müller, M. Matzner, J. Mendling, J. vom Brocke, Electronic Markets (2019), pp. 1--12


    Topic Modeling as a Strategy of Inquiry in Organizational Research: A Tutorial With an Application Example on Organizational Culture

    T. Schmiedel, O. Müller, J. vom Brocke, Organizational Research Methods (2019), pp. 941--968


    The Effect of Marker-less Augmented Reality on Task and Learning Performance

    P. Sommerauer, O. Müller, L. Maxim, N. Østman, in: International Conference on Wirtschaftsinformatik, 2019



    2018

    ECM implementations in practice: objectives, processes, and technologies

    R. Jaakonmäki, A. Simons, O. Müller, J. vom Brocke, Journal of Enterprise Information Management (2018)(5), pp. 704--723


    The Effect of Big Data and Analytics on Firm Performance: An Econometric Analysis Considering Industry Characteristics

    O. Müller, M. Fay, J. vom Brocke, Journal of Management Information Systems (2018)(2), pp. 488--509


    Hospital-wide Process-oriented Organization of Care: The Case of Turku University Central Hospital

    R. Suomi, O. Müller, J. vom Brocke, Journal of Information Technology Theory and Application (JITTA) (2018), 19(4), pp. 3


    Emotional contagion through online newspapers

    K. Bösch, O. Müller, J. Schneider, in: European Conference on Information Systems, 2018


    Augmented reality for teaching and learning--a literature review on theoretical and empirical foundations

    P. Sommerauer, O. Müller, in: European Conference on Information Systems, 2018



    Augmented Reality in Informal Learning Environments: Investigating Short-term and Long-term Effects

    P. Sommerauer, O. Müller, in: Hawaii International Conference on System Sciences, 2018


    2017

    An open-data approach for quantifying the potential of taxi ridesharing

    B. Barann, D. Beverungen, O. Müller, Decision Support Systems (2017), pp. 86--95

    Taxi ridesharing1 (TRS) is an advanced form of urban transportation that matches separate ride requests with similar spatio-temporal characteristics to a jointly used taxi. As collaborative consumption, TRS saves customers money, enables taxi companies to economize use of their resources, and lowers greenhouse gas emissions. We develop a one-to-one TRS approach that matches rides with similar start and end points. We evaluate our approach by analyzing an open dataset of > 5 million taxi trajectories in New York City. Our empirical analysis reveals that the proposed approach matches up to 48.34% of all taxi rides, saving 2,892,036 km of travel distance, 231,362.89 l of gas, and 532,134.64 kg of CO2 emissions per week. Compared to many-to-many TRS approaches, our approach is competitive, simpler to implement and operate, and poses less rigid assumptions on data availability and customer acceptance.


      Beyond crowd judgments: Data-driven estimation of market value in association football

      O. Müller, A. Simons, M. Weinmann, European Journal of Operational Research (2017)(2), pp. 611--624


      An open-data approach for quantifying the potential of taxi ridesharing

      B. Barann, D. Beverungen, O. Müller, Decision Support Systems (2017), pp. 86--95


      Conceptualizing smart service systems

      D. Beverungen, O. Müller, M. Matzner, J. Mendling, J. vom Brocke, Electronic Markets (2017), pp. 7-18


      The Impact of Content, Context, and Creator on User Engagement in Social Media Marketing

      R. Jaakonmäki, O. Müller, J. vom Brocke, in: Hawaii International Conference on System Sciences, 2017


      2016

      Utilizing big data analytics for information systems research: Challenges, promises and guidelines

      O. Müller, I. Junglas, J. vom Brocke, S. Debortoli, European Journal of Information Systems (2016)(4), pp. 289--302


      Text Mining for Information Systems Researchers: An Annotated Tutorial

      S. Debortoli, O. Müller, I. Junglas, J. vom Brocke, Communications of the Association for Information Systems (2016), pp. 555--582


      Towards a typology of business process management professionals: identifying patterns of competences through latent semantic analysis

      O. Müller, T. Schmiedel, E. Gorbacheva, J. vom Brocke, Enterprise Information Systems (2016)(1), pp. 50--80


      Using text analytics to derive customer service management benefits from unstructured data

      O. Müller, S. Debortoli, I. Junglas, J. vom Brocke, MIS Quarterly Executive (2016)(4), pp. 243--258


      The Role of Gender in Business Process Management Competence Supply

      E. Gorbacheva, A. Stein, T. Schmiedel, O. Müller, Business and Information Systems Engineering (2016)(3), pp. 213--231


      Identifying and quantifying cultural factors that matter to the IT workforce: An approach based on automated content analysis

      T. Schmiedel, O. Müller, S. Debortoli, J. vom Brocke, in: European Conference on Information Systems, 2016


      Disentangling the Relationship Between the Adoption of In-Memory Computing and Firm Performance

      M. Fay, O. Müller, J. vom Brocke, in: Proceedings of the European Conference on Information Systems, 2016


      The Evolution of SAP Services

      O. Müller, J. vom Brocke, A. Uhl, in: Business Transformation Essentials: Case Studies and Articles, 2016


      2015

      Potenzialbeurteilung neuer Technologien im Prozesscontrolling

      J. vom Brocke, O. Müller, S. Debortoli, N. Reuter, Controlling (2015), 26(2), pp. 83-89


      A gender perspective on business process management competences offered on professional online social networks

      E. Gorbacheva, A. Stein, T. Schmiedel, O. Müller, in: European Conference on Information Systems, 2015


      Real-time Business Process Intelligence. Comparison of different architectural approaches using the example of the order-to-cash process.

      A. Korotina, O. Müller, S. Debortoli, in: Proceedings of the International Conference on Wirtschaftsinformatik, 2015, pp. 1710-1724


      2014

      How In-Memory Technology Can Create Business Value: Lessons Learned from Hilti

      J. vom Brocke, S. Debortoli, N. Reuter, O. Müller, Communications of the Association for Information Systems (2014), pp. 151--167


      How In-memory Technology Can Create Business Value: Insights from the Hilti Case

      J. vom Brocke, S. Debortoli, O. Müller, N. Reuter, Communications of the Association for Information Systems (2014), 34(1), pp. 7


      New frontiers in business process management

      T. Kohlborn, O. Müller, J. Pöppelbuss, M. Röglinger, Business Process Management Journal (2014)(4), pp. 3--6


      Interview with Michael Rosemann on ambidextrous business process management

      T. Kohlborn, O. Müller, J. Poeppelbuss, M. Roeglinger, Business Process Management Journal (2014), pp. 634-638


      Comparing business intelligence and big data skills: A text mining study using job advertisements

      S. Debortoli, O. Müller, J. vom Brocke, Business and Information Systems Engineering (2014)(5), pp. 289--300


      Enriching iTunes App Store categories via topic modeling

      S. Vakulenko, O. Müller, J.v. Brocke, in: International Conference on Information Systems, 2014


      Identifying and characterizing topics in enterprise content management: a latent semantic analysis of vendor case studies

      A. Herbst, A. Simons, J. vom Brocke, O. Müller, S. Debortoli, S. Vakulenko, in: European Conference on Information Systems, 2014


      Identifying the role of information systems in achieving energy-related environmental sustainability using text mining

      N. Reuter, S. Vakulenko, J. vom Brocke, S. Debortoli, O. Müller, in: Proceedings of the European Conference on Information Systems, 2014


      Handbuch für offene gesellschaftliche Innovation

      C. Raffl, J. Lucke, O. Müller, H. Zimmermann, J. Vom Brocke, in: TOGI-Schriftenreihe, ePubli GmbH, 2014


      2013

      Designing Interaction Routines in Service Networks: A Modularity and Social Construction-Based Approach

      J. Becker, D. Beverungen, R. Knackstedt, M. Matzner, O. Müller, J. Pöppelbuß, Scandinavian Journal of Information Systems (2013)(1), pp. 37--68


      Bridging the gap between manufacturing and service through IT-based boundary objects

      J. Becker, D. Beverungen, R. Knackstedt, M. Matzner, O. Müller, J. Pöppelbuss, IEEE Transactions on Engineering Management (2013)(3), pp. 468--482


      Designing interaction routines in service networks: A modularity and social construction-based approach

      J. Becker, D. Beverungen, R. Knackstedt, M. Matzner, O. Müller, J. Pöppelbuss, Scandinavian Journal of Information Systems (2013)(1), pp. 17--47


      In-Memory Database Buseiness Value. Results from a Study on Retail Innovation

      J. vom Brocke, S. Debortoli, O. Müller, A. Uhl, 360° – THE BUSINESS TRANSFORMATION JOURNAL (2013), pp. 48-56


      Bridging the Gap Between Manufacturing and Service Through IT-Based Boundary Objects

      J. Becker, D. Beverungen, R. Knackstedt, M. Matzner, O. Müller, J. Pöppelbuß, IEEE Transactions on Engineering Management (2013)(3), pp. 468--482


      Reflection, abstraction and theorizing in design and development research

      S. Gregor, O. Müller, S. Seidel, in: European Conference on Information Systems, 2013


      MUSE: Implementation of a Design Theory for Systems that Support Convergent and Divergent Thinking

      O. Müller, S. Debortoli, S. Seidel, in: International Conference on Design Science Research in Information Systems, Springer-Verlag, 2013, pp. 438 - 445


      2012

      Open Societal Innovation: The Alemannic Definition

      J. von Lucke, J. Herzberg, U. Kluge, J. vom Brocke, O. Müller, H. Zimmermann, SSRN Electronic Journal (2012)


      Beyond process monitoring: A proof-of-concept of event-driven business activity management

      C. Janiesch, M. Matzner, O. Müller, Business Process Management Journal (2012)(4), pp. 625--643

      Purpose – The purpose of this paper is to show how to employ complex event processing (CEP) for the observation and management of business processes. It proposes a conceptual architecture of BPM event producer, processor, and consumer and describes technical implications for the application with standard software in a perfect order scenario. Design/methodology/approach – The authors discuss business process analytics as the technological background. The capabilities of CEP in a BPM context are outlined an architecture design is proposed. A sophisticated proof-of-concept demonstrates its applicability. Findings – The results overcome the separation and data latency issues of process controlling, monitoring, and simulation. Distinct analyses of past, present, and future blur into a holistic real-time approach. The authors highlight the necessity for configurable event producer in BPM engines, process event support in CEP engines, a common process event format, connectors to visualizers, notifiers and return channels to the BPM engine. Research limitations/implications – Further research will thoroughly evaluate the approach in a variety of business settings. New concepts and standards for the architecture's building blocks will be needed to improve maintainability and operability. Practical implications – Managers learn how CEP can yield insights into business processes' operations. The paper illustrates a path to overcome inflexibility, latency, and missing feedback mechanisms of current process modeling and control solutions. Software vendors might be interested in the conceptualization and the described needs for further development. Originality/value – So far, there is no commercial CEP-based BPM solution which facilitates a round trip from insight to action as outlines. As major software vendors have begun developing solutions (BPM/BPA solutions), this paper will stimulate a debate between research and practice on suitable design and technology.


        A review of event formats as enablers of event-driven BPM

        J. Becker, M. Matzner, O. Müller, M. Walter, in: Lecture Notes in Business Information Processing, 2012

        Event-driven Business Process Management (EdBPM) is based upon exchanging and processing business events. As yet, no commonly adopted event format for communicating business events between distributed event producers and consumers has emerged. This paper is an effort to review the status quo of event formats against the requirements of EdBPM. We particularly discuss BPAF, CBE, and XES as promising candidates and identify prospects for development.


          Extending BPMN for business activity monitoring

          J.P. Friedenstab, C. Janiesch, M. Matzner, O. Müller, in: Hawaii International Conference on System Sciences, 2012

          Real-time access to key performance indicators is necessary to ensure timeliness and effectiveness of operational business processes. The concept of Business Activity Monitoring (BAM) refers to the observation, analysis, and presentation of real-time information about business activities across systems' and companies' borders. Designing and maintaining BAM applications is challenging, as the involved concepts (e.g., business processes, audit logs, performance measures) --though being strongly interrelated-- are developed by different communities of practice. Also, they reside on different levels of abstraction, and are handled by different IT systems. Hence, we developed a conceptual modeling language which extends the widely accepted Business Process Modeling Notation (BPMN) by BAM-relevant concepts. The main results presented in this paper are: (1) a meta-model which formally describes the conceptual aspects of the developed BPMN extension (abstract syntax); (2) graphical symbols as an exemplary representation of this abstract syntax (concrete syntax); (3) a demo scenario that illustrates the application of the language in a fictitious scenario.


            Business activity management for service networks in cloud environments

            C. Janiesch, R. Fischer, M. Matzner, O. Müller, in: Proceedings of the Workshop on Middleware for Service Oriented Computing, 2012, pp. 1 - 6


            Product-Service System Approaches

            D. Beverungen, M. Matzner, O. Müller, J. Becker, in: Handbook of Service Description, 2012, pp. 19--44


            2011

            Flexible Informationssystem-Architekturen für hybride Wertschöpfungsnetzwerke (Flexnet) : Forschungsprojekt im Rahmen der BMBF-Fördermaßnahme Integration von Produktion und Dienstleistung

            J. Becker, D. Beverungen, R. Knackstedt, M. Matzner, O. Müller, J. Pöppelfuß, Arbeitsberichte des Instituts für Wirtschaftsinformatik, 2011


            Pricing of Value Bundles: A Multi-Perspective Decision Support Approach

            J. Becker, D. Beverungen, R. Knackstedt, O. Müller, Enterprise Modelling and Information Systems Architectures (2011)(2), pp. 54--69


            Leaving the Beaten Tracks in Creative Work – A Design Theory for Systems that Support Convergent and Divergent Thinking

            F. Müller-Wienbergen, O. Müller, S. Seidel, J. Becker, Journal of the Association for Information Systems (2011)(11), pp. 714--740


            Design Science in Service Research: A Framework-Based Review of IT Artifacts in Germany

            J. Becker, D. Beverungen, M. Matzner, O. Müller, J. Pöppelbuß, in: Service-Oriented Perspectives in Design Science Research: Proceedings of the 6th International Conference DESRIST 2011, 2011, pp. 366--375


            Slipstream: architecture options for real-time process analytics

            C. Janiesch, M. Matzner, O. Müller, R. Vollmer, J. Becker, in: Proceedings of the ACM Symposium on Applied Computing, 2011, pp. 295 - 300


            A blueprint for event-driven business activity management

            C. Janiesch, M. Matzner, O. Müller, in: Lecture Notes in Computer Science, 2011


            Information Needs in Service Systems --- A Framework for Integrating Service and Manufacturing Business Processes

            J. Becker, D. Beverungen, R. Knackstedt, M. Matzner, O. Müller, in: Proceedings of the 44th Annual Hawaii International Conference on System Sciences, 2011


            Integrierte Informationslogistik in der hybriden Wertschöpfung

            J. Becker, D. Beverungen, R. Knackstedt, M. Matzner, O. Müller, J. Pöppelbuß, in: Mit Dienstleistungen die Zukunft gestalten: Impulse aus Forschung und Praxis. Beiträge der 8. Dienstleistungstagung des BMBF, 2011, pp. 247--255


            2010

            Enabling individualized recommendations and dynamic pricing of value-added services through willingness-to-pay data

            K. Backhaus, J. Becker, D. Beverungen, M. Frohs, O. Müller, M. Weddeling, R. Knackstedt, M. Steiner, Electronic Markets (2010)(2), pp. 131--146


            Enabling Individualized Recommendations and Dynamic Pricing of Value-Added Services through Willingness-to-Pay Data

            K. Backhaus, J. Becker, D. Beverungen, M. Frohs, O. Müller, M. Weddeling, R. Knackstedt, M. Steiner, Electronic Markets (2010)(2), pp. 131--146


            An ontology-based natural language service discovery engine--design and experimental evaluation

            J. Becker, O. Müller, M. Woditsch, in: European Conference on Information Systems, 2010


            Total Cost of Service Life --- Decision Support for Selecting and Orchestrating Services

            J. Becker, D. Beverungen, M. Matzner, O. Müller, in: Proceedings of the IADIS Internatioal Conference e-Society 2010, 2010, pp. 322--329


            Total Costs of Service Life: The Need of Decision Support in Selecting, Comparing and Orchestrating Services

            J. Becker, D. Beverungen, M. Matzner, O. Müller, in: Exploring Service Sciences, 2010, pp. 282--288


            Incorporating Willingness-to-Pay Data into Online Recommendations for Value-Added Services

            K. Backhaus, J. Becker, D. Beverungen, M. Frohs, O. Müller, M. Weddeling, in: Proceedings of the 18th European Conference on Information Systems, 2010


            Online-Produktkonfiguratoren – Status quo und Entwicklungsperspektiven

            J. Becker, R. Knackstedt, O. Müller, A. Benölken, O. Schmitt, M. Thillainathan, A. Schulke, in: Vertriebsinformationssysteme, Springer-Verlag, 2010, pp. 85 - 104


            TCO-as-a-Service --- Servicebasierte Lebenszyklusrechnung für hybride Leistungsbündel

            J. Becker, D. Beverungen, R. Knackstedt, O. Müller, S. Müller, in: Vertriebsinformationssysteme --- Standardisierung, Individualisierung, Hybridisierung und Internetisierung, 2010, pp. 161--174


            Preisfindung für hybride Leistungsbündel--Modellbasierte Integration von Ansätzen zur Entscheidungsunterstützung

            J. Becker, D. Beverungen, R. Knackstedt, O. Müller, in: Dienstleistungsmodellierung 2010, Physica-Verlag HD, 2010, pp. 144-166


            Vermarktung hybrider Leistungsbündel

            M. Weddeling, M. Steiner, O. Müller, R. Knackstedt, J. Becker, K. Backhaus, D. Beverungen, M. Frohs, Springer Berlin Heidelberg, 2010


            2009

            Model-Based Decision Support for the Customer-Specific Configuration of Value Bundles

            J. Becker, D. Beverungen, R. Knackstedt, O. Müller, Enterprise Modelling and Information Systems Architectures (2009)(1), pp. 26--38


            Model-Based Decision Support for the Customer-Specific Configuration of Value Bundles

            J. Becker, D. Beverungen, R. Knackstedt, O. Müller, Enterprise Modelling and Information Systems Architectures (2009)(1), pp. 26--38


            Documentation of flexible business processes-A healthcare case study

            J. Becker, K. Bergener, O. Müller, F. Müller-Wienbergen, in: Proceedings of the Americas Conference on Information Systems, 2009, pp. 93


            A Framework for Design Research in the Service Science Discipline

            J. Becker, D. Beverungen, R. Knackstedt, M. Matzner, O. Müller, J. Pöppelbuß, in: Proceedings of the 15th Americas Conference on Information Systems, 2009


            A design research study on enhancing creativity-The case of developing product-service bundles

            F. Müller-Wienbergen, S. Seidel, O. Müller, R. Knackstedt, J. Becker, in: ECIS Proceedings, 2009


            Design Requirements to Support Information Flows for Providing Customer Solutions: A Case Study in the Mechanical Engineering Sector

            J. Becker, D. Beverungen, M. Matzner, O. Müller, in: Proceedings of the First International Symposium on Services Science (ISSS'09), 2009, pp. 75--85


            Comparing Architectural Styles for Service-Oriented Architectures – a REST vs. SOAP Case Study

            J. Becker, M. Matzner, O. Müller, in: Information Systems Development, Springer, 2009, pp. 207-215


            2008

            Entwicklung Serviceorientierter Architekturen zur Integration von Produktion und Dienstleistung – Eine Konzeptionsmethode und ihre Anwendung am Beispiel des Recyclings elektronischer Geräte

            D. Beverungen, R. Knackstedt, O. Müller, WIRTSCHAFTSINFORMATIK (2008)(3), pp. 220--234


            Ein Plädoyer für die Berücksichtigung von Semantik beim StammdatenAlignment-Vorgehensmodell und prototypische Anwendung im Einzelhandel

            A. Winkelmann, M. Matzner, O. Müller, J. Becker, DW2008 (2008)


            Entwicklung Serviceorientierter Architekturen zur Integration von Produktion und Dienstleistung --- Eine Konzeptionsmethode und ihre Anwendung am Beispiel des Recyclings elektronischer Geräte

            D. Beverungen, R. Knackstedt, O. Müller, Wirtschaftsinformatik (2008)(3), pp. 220--234


            Modeling, Customer-Specific Configuration and Calculation of Value Bundles

            J. Becker, D. Beverungen, R. Knackstedt, O. Müller, in: Proceedings of the 14th Americas Conference on Information Systems, 2008


            Towards a semantic data quality management-using ontologies to assess master data quality in retailing

            J. Becker, M. Matzner, O. Müller, A. Winkelmann, in: Proceedings of the Americas Conference on Information Systems, 2008, pp. 129


            Konzeption einer Modellierungssprache zur tool-unterstützten Modellierung, Konfiguration und Bewertung hybrider Leistungsbündel

            J. Becker, D. Beverungen, R. Knackstedt, O. Müller, in: Proceedings of the GI-Tagung Modellierung, Workshop Dienstleistungsmodellierung, 2008, pp. 45-62


            An ontology-based service discovery approach for the provisioning of product-service bundles

            R. Knackstedt, D. Kuropka, O. Müller, A. Polyvyanyy, in: European Conference on Information Systems, 2008


            Serviceorientierte Informationssystemarchitekturen zur Integration von Produktion und Dienstleistung am Beispiel des WEEE-Recycling

            R. Knackstedt, O. Müller, in: Wertschöpfungsnetzwerke, Physica-Verlag HD, 2008, pp. 235-252


            Konzeption einer Modellierungssprache zur softwarewerkzeugunterstützten Modellierung, Konfiguration und Bewertung hybrider Leistungsbündel

            J. Becker, D. Beverungen, R. Knackstedt, O. Müller, in: Dienstleistungsmodellierung --- Methoden, Werkzeuge und Branchenlösungen, 2008, pp. 53--70


            Open list in Research Information System

            Further information:

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