CODEWITHSUNDEEP
sparqlsemantic-webdbpedia
Pham Hai
Pham Hai

Reputation: 55

Sliding Window Algorithm: Search exact entity in DBpedia using SPARQL

I am using a sliding window algorithm to search URI in DBpedia. With keyword strings entered, I separate them into small clusters and then search on DBpedia.

Example:

Keyword: Actor of the film titanic

=>Separate them into: Actor of the, Actor of, Actor, of the film, of the, of, the film Titanic, the movie, the, film titanic, movie, titanic

Question: How can I search for exactly the entities named as keywords (phrases analyzed above) included using SPARQL?

Thank you very much.

Upvotes: 1

Views: 80

Answers (1)

UninformedUser
UninformedUser

Reputation: 8465

  1. There are so many question answering systems out now for Linked Data and evaluated against DBpedia - I don't understand why you want to reinvent the wheel.

  2. SPARQL query by using what? You can match the rdfs:label values, e.g.

    SELECT DISTINCT ?s WHERE {?s rdfs:label "KEYWORD"@en .}

but most QA systems are using a pre-computed fulltext index based on Lucene or the like. At least, that's how we did it in our QA project(s).

Upvotes: 1

Related Questions