====== Terminology ====== This page lists short explanations of special terms regarding regain and search engines. ===== Analyzer ===== When the [[:components:crawler]] found a document and extracted the text, then it stores that text in the [[:components:search index]] using [[:project_info:used_libraries|Lucene]]. Lucene extract every single word from the document's text. Before the words are stored in the index, they are reduced to their base form using an **analyzer**. So searching for ''tree'' and ''trees'' has the same results. ===== Query syntax ===== The syntax of search queries. Details see [[http://jakarta.apache.org/lucene/docs/queryparsersyntax.html]] ===== Stopword list ===== Stopwords are words that shouldn't be stored in the index.
