[Zope] [ANN] TextIndexNG 2.0 alpha 1 released

[Chris Withers]

Andreas Jung wrote:
> 
>  - Relevance ranking of search results added. Searches are now ranked
>    using an extended cosine measure. The cosine measure is based on
>    a vector model and calculates the document "score" based on the
>    frequency of the query terms inside the document result set.

Can you show an example of how this would be used in a ZCatalog search involving 
some other indexes where the end result of the search should be sorted by the 
relevence rank of the TextIndexNG?

cheers,

Chris