en:user:searching
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en:user:searching [2017/04/09 23:18] – [Formatting cross-collection search results] kjdon | en:user:searching [2019/07/09 04:16] – [Faceted Search Results] anupama | ||
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In Greenstone, you can dictate how users will be able to search each | In Greenstone, you can dictate how users will be able to search each | ||
- | collection. You can select | + | collection. You can select |
you can create indexes based on any number of metadata fields and the text of the documents. | you can create indexes based on any number of metadata fields and the text of the documents. | ||
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These indexers are available: | These indexers are available: | ||
- | * **[[http:// | + | * **MG**: MG the original indexer used by Greenstone, developed mainly by Alistair Moffat and described in the classic book [[http:// |
- | * **[[http:// | + | |
- | * **[[http://lucene.apache.org/core/|Lucene]]**: Lucene was developed by the Apache Software Foundation. It handles field and proximity searching, but only at a single level (e.g. complete documents or individual sections, but not both). Therefore document and section indexes for a collection require two separate indexes. It provides a similar range of search functionality to MGPP with the addition of single-character wildcards and range searching. It was added to Greenstone to facilitate [[incremental building | incremental collection building]], which MG and MGPP can't provide. | + | * [[nzdl:mg | More info about MG ]] |
+ | * **MGPP**: MGPP (MG plus plus), the new version of MG, was developed by the New Zealand Digital Library Project. It does word level indexing, which allows fielded, phrase and proximity searching to be handled by the indexer. Boolean searches can be ranked. Only a single index is created for a Greenstone collection: document/ | ||
+ | * [[http://files.greenstone.org/technical/mgpp_user.pdf|MGPP user guide]] | ||
+ | * **Lucene**: Lucene was developed by the Apache Software Foundation. It handles field and proximity searching, but only at a single level (e.g. complete documents or individual sections, but not both). Therefore document and section indexes for a collection require two separate indexes. It provides a similar range of search functionality to MGPP with the addition of single-character wildcards and range searching. It was added to Greenstone to facilitate [[incremental building | incremental collection building]], which MG and MGPP can't provide. | ||
+ | * [[ |lucene web site]] | ||
+ | * [[en: | ||
+ | * **SOLR**: Available in Greenstone3. | ||
+ | * [[en: | ||
+ | * | ||
Changing the indexer affects how the indexes are built, and may affect search functionality. | Changing the indexer affects how the indexes are built, and may affect search functionality. | ||
The following table compares the indexers' | The following table compares the indexers' | ||
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In Greenstone 3, if you use SOLR as your search indexer, you can have faceted searching. This means you can filter search results based on other metadata. The facet options need to be set up manually in the collectionConfig.xml file as GLI does not allow you to enter them manually yet. | In Greenstone 3, if you use SOLR as your search indexer, you can have faceted searching. This means you can filter search results based on other metadata. The facet options need to be set up manually in the collectionConfig.xml file as GLI does not allow you to enter them manually yet. | ||
- | Add < | + | Add < |
< | < | ||
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as each indexer ranks results differently. | as each indexer ranks results differently. | ||
- | If you create a new [[en: | + | If you create a new [[en:user: |
the CrossCollectionSearch serviceRack to the site's '' | the CrossCollectionSearch serviceRack to the site's '' | ||
< | < |
en/user/searching.txt · Last modified: 2023/03/13 01:46 by 127.0.0.1