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RDFLib is a Python library for working with RDF, [2] a simple yet powerful language for representing information. This library contains parsers/serializers for almost all of the known RDF serializations, such as RDF/XML, Turtle, N-Triples, & JSON-LD, many of which are now supported in their updated form (e.g. Turtle 1.1).
XPath (XML Path Language) is an expression language designed to support the query or transformation of XML documents. It was defined by the World Wide Web Consortium (W3C) in 1999, [1] and can be used to compute values (e.g., strings, numbers, or Boolean values) from the content of an XML document.
XQuery: a query language designed to query collections of XML data (similar to SQL) XrML: the eXtensible Rights Markup Language, or the Rights Expression Language (REL) for MPEG-21; XSIL: an XML-based transport language for scientific data; XSL Formatting Objects: a markup language for XML document formatting which is most often used to ...
XPath is widely used in other core-XML specifications and in programming libraries for accessing XML-encoded data. XQuery (XML Query) is an XML query language strongly rooted in XPath and XML Schema. It provides methods to access, manipulate and return XML, and is mainly conceived as a query language for XML databases.
XQuery (XML Query) is a query and functional programming language that queries and transforms collections of structured and unstructured data, usually in the form of XML, text and with vendor-specific extensions for other data formats (JSON, binary, etc.). The language is developed by the XML Query working group of the W3C.
XSLT functionalities overlap with those of XQuery, which was initially conceived as a query language for large collections of XML documents. The XSLT 2.0 and XQuery 1.0 standards were developed by separate working groups within W3C , working together to ensure a common approach where appropriate.
The OData protocol specifies various 'system query options' endpoints should accept, these can be used to filter, order, map or paginate data. Query options can be appended to a URL after a ? character and are separated by & characters; each option consists of a $ -sign prefixed name and its value, separated by a = sign, for example: OData ...
Ranking in XML-Retrieval can incorporate both content relevance and structural similarity, which is the resemblance between the structure given in the query and the structure of the document. Also, the retrieval units resulting from an XML query may not always be entire documents, but can be any deeply nested XML elements, i.e. dynamic documents.