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1. A suffix array is an array containing all suffixes of a string sorted in lexicographic order. It allows for efficient string searches, including prefix searches, substring searches, and near neighbor searches. 2. The suffix array can be used to find the starting positions of all occurrences of a pattern or substring within the text in time linear to the pattern length. It supports finding the l
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This document provides an overview of Lucene and how it can be used with MySQL. It discusses: - What Lucene is and its origins as an open source information retrieval library. - How Lucene works as a toolkit for building search applications rather than a turnkey search engine. - Core Lucene classes like IndexWriter, Directory, Analyzer, and Document that are used for indexing data. - Classes like
This document provides an overview of Lucene scoring and sorting algorithms. It describes how Lucene constructs a Hits object to handle scoring and caching of search results. It explains that Lucene scores documents by calling the getScore() method on a Scorer object, which depends on the type of query. For boolean queries, it typically uses a BooleanScorer2. The scoring process advances through d
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