NIH | National Cancer Institute | NCI Wiki  

Error rendering macro 'rw-search'

null

Versions Compared

Old Version 4

changes.mady.by.user Bauer, Scott (NIH/NCI) [C]

Saved on

compared with

New Version 5

changes.mady.by.user Bauer, Scott (NIH/NCI) [C]

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Searches for a Phrase in text using the regular lucene query parser.  The only addition is a set of escaped quotation marks at the beginning and end of the phrase.  It could be done in the regular Lucene Query by the user.  No special indexing.

Contains

Equivalent to ' * term* * ' - in other words - a trailing wildcard on a term (but no leading wild card) and the term can appear at any position.   Searches on Property Value only.

Leading and Trailing Wild Card

Equivalent to '*term*' This should be a very poor performing search and is not recommended especially when entering  a phrase.

Exact Match

Exact match (case insensitive).  Requires it's own indexed value, a lower case, untokenized Property Value.

...

Spelling Error Tolerant Substring Match

Adds Spelling-error tolerance to 'subString' search.  This makes use of the double metaphone indexed value as well as literal property values.  Since it shares these with other algorithms it probably doesn't add much to the index.  However this doesn't look like a high performing search. 

Stemmed Lucene Query

Search with the Lucene query syntax, using stemmed terms.  A search for 'trees' will get a hit on 'tree'  This requires an extra indexed field when it is enabled in the load.

...