]> Search Service Ontology This ontology defines some common terms for representing information tranferred between a client and a search engine. This ontology is create by Li Ding (http://www.cs.rpi.edu/~dingl/). revised $Date: 9:15 AM 10/23/2007$ Search Service One of the search service provided by a search engine. Search engine will choose different search-index and search-result-form for each type of search service. Usage: define an instance of SearchService for each type of search service. Search Request The data passed to a search engine as a request. search service which search service to be used. A search engine may host multiple search services. result syntax which syntax to return search result. search string The search string. Allowed query syntax is described in http://lucene.apache.org/java/docs/queryparsersyntax.html start The starting index of search results to be returned(starting at 1) limit The total number search results to be returned (between 0 and total results) sort field The field to be used to sort search results. reverse sort Whether reverse the order of search results. Search Response The data generated by a search engine for encoding search result. Search Request The search request that lead to this search response. Search Results Search results are listed as an instance of rdfs:Seq. succeed the status of search process. False will be return when search cannot be executed or search fails. error message the error message explaining why search failed. total results how many results has been found. returned results how many results has been returned in this response. process time (seconds) how many seconds were used to process this query.