Recent work on semi-structured data has revitalized the interest in path queries, i.e., queries that ask for all pairs of objects in the database that are connected by a path conforming to a certain specification, in particular to a regular expression. Also, in semi-structured data, as well as in da
β¦ LIBER β¦
Regular Path Expressions in Feature Logic
β Scribed by Rolf Backofen
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 975 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0747-7171
No coin nor oath required. For personal study only.
β¦ Synopsis
We examine the existential fragment of a feature logic, which is extended by regular path expressions. A regular path expression is a subterm relation, where the allowed paths for the subterms are restricted to any given regular language. In the area of computational linguistics, this notion has been introduced as "functional uncertainty". We will prove that satisfiability is decidable by constructing a quasi-terminating rule system.
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Edited By Dale Jacquette. Includes Bibliographical References And Index.