Search by property

Jump to: navigation, search

This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.

Search by property

"%3AHas-20conclusion%2FDARQ-20offers-20a-20single-20interface-20for-20querying-20multiple%2C-20distributed-20SPARQL-20end-2Dpoints-20and-20makes-20query-20federation-20transparent-20to-20the-20client.-20One-20key-20feature-20of-20DARQ-20is-20that-20it-20solely-20relies-20on-20the-20SPARQL-20standard-20and-20therefore-20is-20compatible-20to-20any-20SPARQL-20endpoint-20implementing-20this-20standard.-20Using-20service-20descriptions-20provides-20a-20powerful-20way-20to-20dynamically-20add-20and-20remove-20endpoints-20to-20the-20query-20engine-20in-20a-20manner-20that-20is-20completely-20transparent-20to-20the-20user.-20To-20reduce-20execution-20costs-20we-20introduced-20basic-20query-20optimization-20for-20SPARQL-20queries.-20Our-20experiments-20show-20that-20the-20optimization-20algorithm-20can-20drastically-20improve-20query-20performance-20and-20allow-20distributed-20answering-20of-20SPARQL-20queries-20over-20distributed-20sources-20in-20reasonable-20time.-20Because-20the-20algorithm-20only-20relies-20on-20a-20very-20small-20amount-20of-20statistical-20information-20we-20expect-20that-20further-20improvements-20are-20possible-20using-20techniques.-20An-20important-20issue-20when-20dealing-20with-20data-20from-20multiple-20data-20sources-20are-20differences-20in-20the-20used-20vocabularies-20and-20the-20representation-20of-20information.-20In-20further-20work%2C-20we-20plan-20to-20work-20on-20mapping-20and-20translation-20rules-20between-20the-20vocabularies-20used-20by-20different-20SPARQL-20endpoints.-20Also%2C-20we-20will-20investigate-20generalizing-20the-20query-20patterns-20that-20can-20be-20handled-20and-20blank-20nodes-20and-20identity-20relationships-20across-20graphs" contains the "%" character as part of a property label and has been classified as invalid.

Showing below up to 0 results starting with #1.

View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500)


    

List of results

No results.