| This module contains a number of filter and query objects that add to core lucene. |
| |
| ==== The "MoreLikeThis" class from the "similarity" module has been copied into here. |
| If people are generally happy with this move then the similarity module can be deleted, or at least a |
| "Moved to queries module..." note left in its place. |
| |
| ==== FuzzyLikeThis - mixes the behaviour of FuzzyQuery and MoreLikeThis but with special consideration |
| of fuzzy scoring factors. This generally produces good results for queries where users may provide details in a number of |
| fields and have no knowledge of boolean query syntax and also want a degree of fuzzy matching. The query is fast because, like |
| MoreLikeThis, it optimizes the query to only the most distinguishing terms. |
| |
| ==== BoostingQuery - effectively demotes search results that match a given query. |
| Unlike the "NOT" clause, this still selects documents that contain undesirable terms, |
| but reduces the overall score of docs containing these terms. |
| |
| ==== TermsFilter - Unlike a RangeFilter this can be used for filtering on multiple terms that are not necessarily in |
| a sequence. An example might be a collection of primary keys from a database query result or perhaps |
| a choice of "category" labels picked by the end user. |
| |
| |
| Mark Harwood |
| 25/02/2006 |
