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The "Payloads" page has been changed by BradfordDabbs:
http://wiki.apache.org/solr/Payloads?action=diff&rev1=2&rev2=3

   * Indexing German content, you want to boost all names more than other 
(capitalized) nouns
   * You have a product called "Word" and want to boost all occurrences over 
the lowercase "word" words :)
  
- All these caes may be solved by introducing payloads in your scoring, given 
you have the client side magic to detect the words. The beauty is that since 
the boost is stored with the term, you do not need any heavy parsing or 
calculation query time. All documents originally containing "Word" would surf 
up higher in your results, even if everything is lowercased both on index and 
query side. And even if HTML markup is lost after parsing, your parser would 
already have tagged the titles and boldface words before removing the markup.
+ All these cases may be solved by introducing payloads in your scoring, given 
you have the client side magic to detect the words. The beauty is that since 
the boost is stored with the term, you do not need any heavy parsing or 
calculation query time. All documents originally containing "Word" would surf 
up higher in your results, even if everything is lowercased both on index and 
query side. And even if HTML markup is lost after parsing, your parser would 
already have tagged the titles and boldface words before removing the markup.
  
  For a step-by-step description on how to enable Payload boosting, see Lucid's 
blog post 
[[http://www.lucidimagination.com/blog/2009/08/05/getting-started-with-payloads/|here]].
  

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