Auflistung nach Autor:in "Vanthienen, Jan"
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- KonferenzbeitragAssessing the state of the art of commercial tools for unstructured information exploitation(Business Information Systems – 9th International Conference on Business Information Systems (BIS 2006), 2006) Beer, Jan de; Kumar, Nishant; Moens, Marie-Francine; Vanthienen, JanThis paper provides a snapshot of the state-of-the-art in information retrieval and information extraction from text through a selection of commercial, market-leading tools. Rooted in a research project conducted for the Belgian Police, we give an overview of the main (desired) features provided or lacked by these tools, along with their measured quality in operation. Various shortcomings and suggestions for improvement will be formulated.
- KonferenzbeitragBusiness rules for compliant business process models(Business Information Systems – 9th International Conference on Business Information Systems (BIS 2006), 2006) Goedertier, Stijn; Vanthienen, JanThe value of business rules in business process modeling has been recognized by several authors: if the knowledge about implicitly present policies and regulations is made explicitly traceable as business rules we can enhance the flexibility of computer-supported business processes. Yet to date it is not fully clear how business rules can be used to model compliant business process models. In this paper, we show that deontic assignments can be used to formally model business protocols. Within the regulatory framework of a business protocol, participants have the autonomy to perform activities according to their own business policies. This can be modeled using reaction rules.
- ZeitschriftenartikelClosing the Gap Between Experts and Novices Using Analytics-as-a-Service: An Experimental Study(Business & Information Systems Engineering: Vol. 61, No. 6, 2019) Lismont, Jasmien; Van Calster, Tine; Óskarsdóttir, María; vanden Broucke, Seppe; Baesens, Bart; Lemahieu, Wilfried; Vanthienen, JanGenerating insights and value from data has become an important asset for organizations. At the same time, the need for experts in analytics is increasing and the number of analytics applications is growing. Recently, a new trend has emerged, i.e. analytics-as-a-service platforms, that makes it easier to apply analytics both for novice and expert users. In this study, the authors approach these new services by conducting a full-factorial experiment where both inexperienced and experienced users take on an analytics task with an analytics-as-a-service technology. The research proves that although experts in analytics still significantly outperform novices, these web-based platforms do offer an advantage to inexperienced users. Furthermore, the authors find that analytics-as-a-service does not offer the same benefits across different analytics tasks. That is, they observe better performance for supervised analytics tasks. Moreover, this study indicates that there are significant differences between novices. The most important distinction lies in the approach they take on the task. Novices who follow a more complex, although structured, workflow behave more similarly to experts and, thus, also perform better. The findings can aid managers in their hiring and training strategy with regards to both business users and data scientists. Moreover, it can guide managers in the development of an enterprise-wide analytics culture. Finally, the results can inform vendors about the design and development of these platforms.
- ZeitschriftenartikelErratum to: Mixed-Paradigm Process Modeling with Intertwined State Spaces(Business & Information Systems Engineering: Vol. 58, No. 1, 2016) Smedt, Johannes; Weerdt, Jochen; Vanthienen, Jan; Poels, Geert
- ZeitschriftenartikelMixed-Paradigm Process Modeling with Intertwined State Spaces(Business & Information Systems Engineering: Vol. 58, No. 1, 2016) Smedt, Johannes; Weerdt, Jochen; Vanthienen, Jan; Poels, GeertBusiness process modeling often deals with the trade-off between comprehensibility and flexibility. Many languages have been proposed to support different paradigms to tackle these characteristics. Well-known procedural, token-based languages such as Petri nets, BPMN, EPC, etc. have been used and extended to incorporate more flexible use cases, however the declarative workflow paradigm, most notably represented by the Declare framework, is still widely accepted for modeling flexible processes. A real trade-off exists between the readable, rather inflexible procedural models, and the highly-expressive but cognitively demanding declarative models containing a lot of implicit behavior. This paper investigates in detail the scenarios in which combining both approaches is useful, it provides a scoring table for Declare constructs to capture their intricacies and similarities compared to procedural ones, and offers a step-wise approach to construct mixed-paradigm models. Such models are especially useful in the case of environments with different layers of flexibility and go beyond using atomic subprocesses modeled according to either paradigm. The paper combines Petri nets and Declare to express the findings.
- ZeitschriftenartikelWhat we know and what we do not know about DMN(Enterprise Modelling and Information Systems Architectures (EMISAJ) – International Journal of Conceptual Modeling: Vol. 13, Nr. 2, 2018) Figl, Kathrin; Mendling, Jan; Tokdemir, Gul; Vanthienen, JanThe recent Decision Model and Notation (DMN) establishes business decisions as first-class citizens of executable business processes. This research note has two objectives: first, to describe DMN's technical and theoretical foundations; second, to identify research directions for investigating DMN's potential benefits on a technological, individual and organizational level. To this end, we integrate perspectives from management science, cognitive theory and information systems research.
- ZeitschriftenartikelWhat we know and what we do not know about DMN.(EMISA Forum: Vol. 38, No. 1, 2018) Figl, Kathrin; Mendling, Jan; Tokdemir, Gül; Vanthienen, Jan