RDF graph summarization: principles, techniques and applications (tutorial)

Haridimos Kondylakis 1 Dimitris Kotzinos 2 Ioana Manolescu 3
2 MIDI - Multimedia Indexation and Data Integration
ETIS - Equipes Traitement de l'Information et Systèmes
3 CEDAR - Rich Data Analytics at Cloud Scale
LIX - Laboratoire d'informatique de l'École polytechnique [Palaiseau], Inria Saclay - Ile de France
Abstract : The explosion in the amount of the RDF on the Web has lead to the need to explore, query and understand such data sources. The task is challenging due to the complex and heterogeneous structure of RDF graphs which, unlike relational databases, do not come with a structure-dictating schema. Summarization has been applied to RDF data to facilitate these tasks. Its purpose is to extract concise and meaningful information from RDF knowledge bases, representing their content as faithfully as possible. There is no single concept of RDF summary, and not a single but many approaches to build such summaries; the summarization goal, and the main computational tools employed for summarizing graphs, are the main factors behind this diversity. This tutorial presents a structured analysis and comparison existing works in the area of RDF summarization; it is based upon a recent survey which we co-authored with colleagues [3]. We present the concepts at the core of each approach, outline their main technical aspects and implementation. We conclude by identifying the most pertinent summarization method for different usage scenarios, and discussing areas where future effort is needed.
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Submitted on : Wednesday, March 27, 2019 - 4:08:43 PM
Last modification on : Friday, October 4, 2019 - 12:16:12 PM
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Haridimos Kondylakis, Dimitris Kotzinos, Ioana Manolescu. RDF graph summarization: principles, techniques and applications (tutorial). EDBT/ICDT 2019 - 22nd International Conference on Extending Database Technology - Joint Conference, Mar 2019, Lisbonne, Portugal. ⟨hal-02081474⟩

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