Abstract
Quality of search today and in general is based primarily on the relevance scoring methods within the Portal Search component. It applies standard relevance calculation provided by the underlying open source Lucene search engine (http://http://lucene.apache.org//. In general terms based on standard scoring – “tf x idf”(term frequency times inverted document frequency). What is not taken into respect is the structure of information provided in a \’document\’, e.g. whether a keyword is also found in the \’title\’ or any other structural element of the document. Typically one would assume that when a keyword appears in the title, that this keyword is significant for this document opposed to that same keyword appearing in other documents but then only in its regular body text. This article describes what search quality tuning options are available.
via WebSphere Portal Family : Search for WebSphere Portal : Improving search quality in Portal Search.
