Adobe 38043740 Developing Applications - Page 524

DEVELOPING COLDFUSION 9 APPLICATIONS 519 Accessing and Using Data The following table describes the evidence operators: Operator STEM WILDCARD WORD THESAURUS SOUNDEX TYPO/N Description Example Expands the search to include the word that you enter and its variations. The STEM operator is automatically implied in any simple query. believe retrieves matches such as "believe," "believing," and "believer". Matches wildcard characters included in search strings. Certain characters automatically indicate a wildcard specification, such as apostrophe (*) and question mark(?). spam* retrieves matches such as, spam, spammer, and spamming. Performs a basic word search, selecting documents that include one or more instances of the specific word that you enter. The WORD operator is automatically implied in any SIMPLE query. logic retrieves logic, but not variations such as logical and logician. Expands the search to include the word that you enter and its synonyms. Collections do not have a thesaurus by default; to use this feature you must build one. altitude retrieves documents containing synonyms of the word altitude, such as height or elevation. Expands the search to include the word that you enter and one or more words that "sound like," or whose letter pattern is similar to, the word specified. Collections do not have sound-alike indexes by default; to use this feature you must build sound-alike indexes. sale retrieves words such as sale, sell, seal, shell, soul, and scale. Expands the search to include the word that you enter plus words that are similar to the query term. This operator performs "approximate pattern matching" to identify similar words. The optional N variable in the operator name expresses the maximum number of errors between the query term and a matched term, a value called the error distance. If N is not specified, the default error distance is 2. swept retrieves kept. The following example uses an evidence operator: Proximity operators Proximity operators specify the relative location of specific words in the document. To retrieve a document, the specified words must be in the same phrase, paragraph, or sentence. In the case of NEAR and NEAR/N operators, retrieved documents are ranked by relevance based on the proximity of the specified words. Proximity operators can be nested; phrases or words can appear within SENTENCE or PARAGRAPH operators, and SENTENCE operators can appear within PARAGRAPH operators. The following table describes the proximity operators: Last updated 1/20/2012