Natural Language Searching

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==Search Forms==
 
==Search Forms==
Natural Language Searching used on two forms in LexisNexis Academic
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Natural Language Searching is the default search on all Search Forms inside Academic. A Boolean Search will run only if one of the following terms is used in the search:
* Search the News widget on the Easy Search form
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* Power Search form (as an option)
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and, not, not w/n, not w/para, or, pre/n, pre/, w/, not w/seg, not w/sent, w/n, w/p, w/seg, w/s, atleast, allcaps, caps, nocaps, plural, singular
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Also, if the user narrows their search by date, uses any of the options on the Advanced Section, or types in a segment like PUBLICATION(), the search will run as Boolean.
  
 
==Using Natural Language==
 
==Using Natural Language==
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* Want to supplement a terms and connectors search to ensure thorough results
 
* Want to supplement a terms and connectors search to ensure thorough results
  
Use [[Boolean Searching]] if you want a document from a specific source or source type, from a particular date range, or that uses your search terms in a particular way.  
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[[Boolean Searching]] is more useful if you want a document from a specific source or source type, from a particular date range, or that uses your search terms in a particular way.  
  
 
==Developing a Natural Language Search==
 
==Developing a Natural Language Search==
  
'''Note: Date restrictions, fielded searching, Boolean connectors such as AND and OR, and wildcard characters such as ! and * are not valid in natural language searches.'''
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To develop a useful natural language search, use terms that you might use when describing your research topic to another person. Then select the most important terms and phrases, and enter them in any order. To find articles about efforts in the fast food industry to use recyclable packaging, you might use this search:
 
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To develop a natural language search, use terms that you might use when describing your research topic to another person. Then select the most important terms and phrases, and enter them in any order. To find articles about efforts in the fast food industry to use recyclable packaging, you might use this search:
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     recycle package "fast food" trash  
 
     recycle package "fast food" trash  
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[[Category: Instruction Tools]]
 
[[Category: Instruction Tools]]
 
[[Category: FAQ]]
 
[[Category: FAQ]]
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[[Category: Interface Refresh]]

Latest revision as of 19:15, 22 December 2013

Natural Language searching uses a relevance ranking to locate documents that are a good match your search terms. It uses a complex algorithm that takes into account factors such as the number of documents that include your search terms and the number of times those terms appear in each document. This is a very different approach from Boolean Searching, which matches your search criteria exactly to documents in the collection.

Search Forms

Natural Language Searching is the default search on all Search Forms inside Academic. A Boolean Search will run only if one of the following terms is used in the search:

and, not, not w/n, not w/para, or, pre/n, pre/, w/, not w/seg, not w/sent, w/n, w/p, w/seg, w/s, atleast, allcaps, caps, nocaps, plural, singular 

Also, if the user narrows their search by date, uses any of the options on the Advanced Section, or types in a segment like PUBLICATION(), the search will run as Boolean.

Using Natural Language

The natural language feature works best when you:

  • Need to research general or conceptual issues, rather than very specific topics
  • Don't know much about an issue except for a few basic terms
  • Are researching a complex issue and can't construct an effective search using terms and connectors
  • Don't feel comfortable writing search requests using terms and connectors
  • Want to supplement a terms and connectors search to ensure thorough results

Boolean Searching is more useful if you want a document from a specific source or source type, from a particular date range, or that uses your search terms in a particular way.

Developing a Natural Language Search

To develop a useful natural language search, use terms that you might use when describing your research topic to another person. Then select the most important terms and phrases, and enter them in any order. To find articles about efforts in the fast food industry to use recyclable packaging, you might use this search:

   recycle package "fast food" trash 

Enter phrases in quotation marks, like "fast food" to get an exact match. Entering the terms without quotation marks could return documents where they are in different sentences or a different order -- "the food was delivered on a fast train.