NDLI: Hypergraph querying using structural indexing and layer-related-closure verification

Content Provider	Springer Nature Link
Author	Yu, Xinran Korkmaz, Turgay
Copyright Year	2015
Abstract	Graph indexing and querying mechanisms have been receiving significant attention due to their importance in analyzing the growing graph datasets in many domains. Although much work has been done in the context of simple graphs, they are not directly applicable to hypergraphs that represent more complex relationships in various applications. The key problem here is to search a given subhypergraph query in a larger hypergraph dataset. This search problem is known to be NP-hard as it is related to graph isomorphism. To solve this search problem in an efficient manner, we first create an index set by extracting the common subhypergraph structures from the given hypergraph dataset. Upon receiving a query, we use the same indexing techniques and create a query index set from the given subhypergraph. Utilizing both indices, we identify the possible locations of the query in the hypergraph dataset. We then start the subhypergraph search to verify whether the query really appears at each location by using an accelerated verification mechanism called layer-related-closure method. Through experiments on a real hypergraph dataset and random datasets, we demonstrate the efficiency and effectiveness of hypergraph indexing and our verification method.
Starting Page	537
Ending Page	565
Page Count	29
File Format	PDF
ISSN	02191377
Journal	Knowledge and Information Systems
Volume Number	46
Issue Number	3
e-ISSN	02193116
Language	English
Publisher	Springer London
Publisher Date	2015-03-24
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hypergraph matching Data mining Indexing Pattern matching verification Information Systems and Communication Service IT in Business
Content Type	Text
Resource Type	Article
Subject	Artificial Intelligence Information Systems Human-Computer Interaction Hardware and Architecture Software

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