发明授权
- 专利标题: Normalized ranking of semantic query search results
- 专利标题(中): 语义查询搜索结果的归一化排序
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申请号: US13595125申请日: 2012-08-27
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公开(公告)号: US09229930B2公开(公告)日: 2016-01-05
- 发明人: Seema Sundara , Matthew Steven Perry , Souripriya Das , Jagannathan Srinivasan
- 申请人: Seema Sundara , Matthew Steven Perry , Souripriya Das , Jagannathan Srinivasan
- 申请人地址: US CA Redwood Shores
- 专利权人: ORACLE INTERNATIONAL CORPORATION
- 当前专利权人: ORACLE INTERNATIONAL CORPORATION
- 当前专利权人地址: US CA Redwood Shores
- 代理机构: Vista IP Law Group, LLP
- 主分类号: G06F17/30
- IPC分类号: G06F17/30
摘要:
A method, system, and computer program product for normalized ranking of semantic query search results. The method commences by forming a SPARQL query, the SPARQL query specifying a collection of named RDF graphs, then executing the SPARQL query to retrieve matched documents selected from the collection of named RDF graphs. Having retrieved the matches, the method calculates an absolute normalized score for the matched document. The calculation of an absolute normalized score for a second matched document allows for relevance ranking. To enhance the relationship of the computer-calculated score to the relevance (and not solely to occurrence counts) embodiments consider the number of distinct variables selected in the SPARQL query, and also consider the total number of bindings to the aforementioned variables. For comparing from among possibly different sized documents, a further normalization component is implemented by considering the total number of triples found in the document's underlying subgraph.
公开/授权文献
- US20140059043A1 NORMALIZED RANKING OF SEMANTIC QUERY SEARCH RESULTS 公开/授权日:2014-02-27