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- W2102094219 abstract "Recent research has investigated the problem of querying semi-structured data and data which can be represented by means of graphs (e.g. object-oriented data, XML data, etc.). Typically queries on graph-like data, called path queries, are expressed by means of regular expressions denoting paths in the graph. The result of a path query is the set of nodes reachable by means of a path expressed by a specified regular expression. In this paper we investigate the problem of extracting a subgraph satisfying a given property from a given graph representing some information. We propose a new form of queries, called graph queries, whose answers are (marked) graphs having a particular structure, extracted from the source graph. We show that a simple form of graph grammar can be profitably used to define graph queries. The result of a graph query, using a grammar G over a database D, is a subgraph of D 'matching' a graph derived from G." @default.
- W2102094219 created "2016-06-24" @default.
- W2102094219 creator A5050801592 @default.
- W2102094219 date "2005-08-25" @default.
- W2102094219 modified "2023-09-30" @default.
- W2102094219 title "Querying semi-structured data with graph grammars" @default.
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- W2102094219 doi "https://doi.org/10.1109/itcc.2002.1000404" @default.
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