[UIMA-1299] Contribution of Lucene CAS Indexer

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3S
• Component/s: Sandbox-Lucas
• Assignee: Jörn Kottmann
• Reporter: Rico Landefeld
• Created: 02/Mar/09 11:58
• Updated: 15/Sep/09 15:36
• Resolved: 24/Jul/09 09:10

Description

Lucas is a UIMA CAS consumer component which writes CAS data into a Lucene index. It is based on a XML-based "mapping configuration file" in which the user can determine which UIMA annotations should be put into which Lucene field, and how this field is set up (e.g. indexed and/or stored). In addition, some basic functionality for (ontolgical) hypernym indexing is provided.

Additionally, Lucas is able to perform offset-based token stream alignment and merging of UIMA annotations (via token position increment) in the same Lucene field (e.g. "documenttext" or "title")

Issue Links

• incorporates: UIMA-1361 Lucas: Convert documentation into docbook format