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The Hydra.PowerGraph System

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dc.contributor.authorMeyer, Holger
dc.contributor.authorSchering, Alf-Christian
dc.contributor.authorHeuer, Andreas
dc.date.accessioned2018-01-08T08:07:53Z
dc.date.available2018-01-08T08:07:53Z
dc.date.issued2017
dc.description.abstractDirected hypergraphs are known from graph theory [11] and are well understood within their own domain [7–9, 22, 23]. This paper provides an overview on the expressiveness of directed and typed hypergraphs as a modeling paradigm not only for the content of digital libraries and archives but a variety of applications. Furthermore, hypergraphs are sufficiently expressive to provide an implementation logic for conceptual models like CIDOC/CRM [18] in the context of museum-related systems and digital archives.The directed hypergraph model supports typed nodes and individual flexible sets of attributes on a per node type basis. This allows for efficient mapping on object-relational database structures. It also features a flexible, semi-structured type system for hyperedges. The graph model is accompanied by a set of well defined graph operations forming an algebra and a descriptive hypergraph query language GrafL. This language supports typed, structure and value based queries as well as fundamental graph algorithms.The suitability of such a hypergraph-based model is illustrated with a large digital ethnological archive system, which is developed in the WossiDiA project [43, 52, 53].
dc.identifier.pissn1610-1995
dc.identifier.urihttps://dl.gi.de/handle/20.500.12116/11010
dc.publisherSpringer
dc.relation.ispartofDatenbank-Spektrum: Vol. 17, No. 2
dc.relation.ispartofseriesDatenbank-Spektrum
dc.subjectDigital archive systems
dc.subjectDigital humanities
dc.subjectDirected hypergraphs
dc.subjectDynamic type checking
dc.subjectGraph databases
dc.titleThe Hydra.PowerGraph System
dc.typeText/Journal Article
gi.citation.endPage129
gi.citation.startPage113

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Datenbank Spektrum 17(2) - Juli 2017