Question

I am confuse her but i want to clear my doubt. I think it is stupid question but i want to know. Use a TokenFilter that outputs two tokens (one original and one lowercased) for each input token. For queries, the client would need to expand any search terms containing upper case characters to two terms, one lowercased and one original. The original search term may be given a boost, although it may not be necessary given that a match on both terms will produce a higher score.

text:NeXT ==> (text:NeXT^10 OR text:next)

what this ^ mean here .

Answer 1

这对NeXT的数值和下方的数值(越重要)给予了推动。从你与相连的基页起,可以提高原搜索期,但鉴于这两个术语的匹配将产生更高的分点<>。

详情请见。 http://www.lucidimagination.com/blog/201106/01/a-practical-approach-to-boosting-documents-with-solrlucene/“rel=” http://lucenerevolution.org“rel=“nofollow” 今年早些时候举行的卢塞特革命大会也载有关于如何促进工程以及如何将其应用于各种情景的良好信息。

Edit1: For more information on the boost values (the number after the ^), please refer to the following:

Lucene Score Boosting

Lucene Similarity Implementation

Edit2: The value of the boost influences the score/relevancy of an item returned from the search results.

(term:NeXT^10 term:next) - Any documents matching term:NeXT will be scored higher/more relevant in this query because they have a boost value of 10 applied.

(term:NeXT^10 term:Next^5 term:next) - Any documents matching term:NeXT will be scored the highest (because of highest boost value), any documents matching term:Next will be scored lower than term:NeXT, but higher than term:next.

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