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Automatic Facet Generation and Selection over Knowledge Graphs

Feddoul, Leila and Schindler, Sirko and Löffler, Frank (2019) Automatic Facet Generation and Selection over Knowledge Graphs. RDA's 14th Plenary, 23.-25.10.2019, Helsinki, Finland.

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Abstract

Recently, The Linked Data Cloud is constantly growing, because it has become a valuable source of semantic data enrichment. Therefore, methods to efficiently and easily explore semantic data are required. Faceted Browsing is a widely used approach to partition resource sets based on various aspects. It allows exploratory search over unknown data schemata without exhaustive domain knowledge. Generally, users are presented with an overview of resources' attributes, called facets, that can be leveraged to narrow down the description of their information need. However, though manual facet predefinition is a valid approach, it becomes impractical, since semantic knowledge graphs (KGs) are often continuously changing. Furthermore, large-scale and heterogeneous KGs induce a large number of possible facets. We propose an approach for automatic facet generation, ranking and selection over KGs. Our ranking is based on metrics that both rate facets individually as well as collectively. We also exploit indirect properties to find better categorizations and thus improve facets' usefulness. Finally, we integrate all proposed methods in an overall automatic facet generation workflow.

Item URL in elib:https://elib.dlr.de/130621/
Document Type:Conference or Workshop Item (Poster)
Title:Automatic Facet Generation and Selection over Knowledge Graphs
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Feddoul, Leilaleila.feddoul (at) uni-jena.dehttps://orcid.org/0000-0001-8896-8208
Schindler, SirkoSirko.Schindler (at) dlr.dehttps://orcid.org/0000-0002-0964-4457
Löffler, Frankfrank.loeffler (at) uni-jena.dehttps://orcid.org/0000-0001-6643-6323
Date:25 October 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Semantic Web Facet Generation
Event Title:RDA's 14th Plenary
Event Location:Helsinki, Finland
Event Type:international Conference
Event Dates:23.-25.10.2019
Organizer:Research Data Alliance
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Jena
Institutes and Institutions:Institute of Data Science > Datamangagement and Analysis
Deposited By: Schindler, Sirko
Deposited On:15 Nov 2019 08:27
Last Modified:15 Nov 2019 08:27

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