Chris A. Mattmann created TIKA-1549:
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Summary: Two times speed increase of language profile distance
calculation
Key: TIKA-1549
URL: https://issues.apache.org/jira/browse/TIKA-1549
Project: Tika
Issue Type: Bug
Components: languageidentifier
Reporter: Toke Eskildsen
Assignee: Chris A. Mattmann
Fix For: 1.8
The distance calculation for language profiles creates a Set of Strings with
each call and performs hashtable lookups for all those Strings. This patch
creates and caches compact structures that are iterated sequentially. The
result is a factor 2 speed up (see the performance test in
LanguageIdentifierTest).
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