XPath Query Processing in a Functional-Logic Language
نویسندگان
چکیده
منابع مشابه
XPath Query Processing in a Functional-Logic Language
XPath is a well-known query language for finding and extracting information from XML documents. This paper shows how the characteristics of this domain-specific language fits very well into the functional-logic paradigm. The proposed framework allows the user to write XPath-like queries as first-class citizens of the functional-logic language T OY, using higher-order combinators for constructin...
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FLOPER is the “Fuzzy LOgic Programming Environment for Research” designed in our research group for assisting the development of real-world applications where fuzzy logic might play an important role. This is the case of our recently proposed extension for the popular XPath query language in order to handle flexible queries which provide ranked answers, fuzzy variants of operators and, or and a...
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In this paper we present an extension of the XPath query language for the handling of flexible queries. In order to provide ranked answers, our approach proposes fuzzy variants of and, or and avg operators for XPath conditions, as well as two structural constraints, called down and deep, for which a certain degree of relevance is associated. Our proposal has been implemented with a fuzzy logic ...
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In recent years it has been argued that when XML encodings become complex, DOM trees are no longer adequate for query processing. Alternative representations of XML documents, such as multi-colored trees [7] have been proposed as a replacement for DOM trees for complex markup. In this paper we consider the use of Generalized Ordered-Descendant Directed Acyclic Graphs (GODDAGs) for the purpose o...
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XML has become a widespread format for data exchange over the Internet. The current state of the art in querying XML data is represented by XPath and XQuery, both of which define binary predicates. In this paper, we advocate that binary selection can at times be restrictive due to very nature of XML, and to the uses that are made of it. We therefore suggest a querying framework, called FXPath, ...
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ژورنال
عنوان ژورنال: Electronic Notes in Theoretical Computer Science
سال: 2012
ISSN: 1571-0661
DOI: 10.1016/j.entcs.2011.12.003