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Université de Fribourg

Past Trends and Future Prospects in Conceptual Modeling : A Bibliometric Analysis

Härer, Felix ; Fill, Hans-Georg

In: International Conference on Conceptual Modeling 2020, 2020, p. 1-14

Research in conceptual modeling is today undertaken in a large number of felds. We describe the results from a bibliometric analysis of major outlets for conceptual modeling research for investigating the evolution of research topics. As a basis for the study we used the openly accessible DBLP dataset which we enriched with data from related publisher's websites and databases. Besides a...

Université de Fribourg

Ontology-driven Enterprise Modeling : A Plugin for the Protégé Platform

Reitemeyer, Benedikt ; Fill, Hans-Georg

In: Lecture Notes in Business Information Processing, 2019, vol. 352, p. 212-226

The use of ontologies for enterprise modeling has been discussed from different perspectives in the past. In the paper at hand we describe design options for creating enterprise models by using an ontology as a shared domain conceptualization connected through ontology-driven conceptual modeling. The enterprise models thus act as representations of ontology instances. As a major bene t, a...

Université de Fribourg

A Neighborhood for Complex Job Shop Scheduling Problems with Regular Objectives

Bürgy, Reinhard

In: Journal of Scheduling, 2017, vol. 20, p. 391-422

Due to the limited applicability in practice of the classical job shop scheduling problem, many researchers have addressed more complex versions of this problem by including additional process features, such as time lags, setup times, and buffer limitations, and have pursued objectives that are more practically relevant than the makespan, such as total flow time and total weighted tardiness....

Université de Fribourg

OpenCrowd : A Human-AI Collaborative Approach for Finding Social Influencers via Open-Ended Answers Aggregation

Arous, Ines ; Yang, Jie ; Khayati, Mourad ; Cudré-Mauroux, Philippe

In: WWW '20: Proceedings of The Web Conference 2020, 2020, vol. April, p. 1851-1862

Finding social influencers is a fundamental task in many online applications ranging from brand marketing to opinion mining. Existing methods heavily rely on the availability of expert labels, whose collection is usually a laborious process even for domain experts. Using open-ended questions, crowdsourcing provides a cost-effective way to find a large number of social influencers in a short...

Université de Fribourg

SectionLinks : Mapping Orphan Wikidata Entities onto Wikipedia Sections

Ostapuk, Natalia ; Difallah, Djellel Eddine ; Cudré-Mauroux, Philippe

In: Proceedings of the 1st Wikidata Workshop (Wikidata 2020) co-located with 19th International Semantic Web Conference (ISWC 2020), Virtual Conference, November 2-6, 2020, 2020, vol. 2773, p. 1-15

Wikidata is a key resource for the provisioning of structured data on several Wikimedia projects, including Wikipedia. By design, all Wikipedia articles are linked to Wikidata entities; such mappings represent a substantial source of both semantic and structural information. However, only a small subgraph of Wikidata is mapped in that way – – only about 10% of the sitelinks are linked to...