: Thanks for the response, but how would make recency a factor on : scoring documents with the standard request handler. : The query (title:iphone OR bodytext:iphone OR title:firmware OR : bodytext:firmware) AND _val_:"ord(dateCreated)"^0.1 : seems to do something very similar to just sorting by dateCreated : rather than having dateCreated being a part of the score.
you have to look at the score explanations (debugQuery=true) and decide what boost is appropriate. there are no magic numbers that work for everyone. : : Thanks, : Sammy : : n Thu, Dec 4, 2008 at 1:35 PM, Sammy Yu <temi...@gmail.com> wrote: : > Hi guys, : > I have a standard query that searches across multiple text fields such as : > q=title:iphone OR bodytext:iphone OR title:firmware OR bodytext:firmware : > : > This comes back with documents that have iphone and firmware (I know I : > can use dismax handler but it seems to be really slow), which is : > great. Now I want to give some more weight to more recent documents : > (there is a dateCreated field in each document). : > : > So I've modified the query as such: : > (title:iphone OR bodytext:iphone OR title:firmware OR : > bodytext:firmware) AND _val_:"ord(dateCreated)"^0.1 : > URLencoded to q=(title%3Aiphone+OR+bodytext%3Aiphone+OR+title%3Afirmware+OR+bodytext%3Afirmware)+AND+_val_%3A"ord(dateCreated)"^0.1 : > : > However, the results are not as one would expects. The first few : > documents only come back with the word iphone and appears to be sorted : > by date created. It seems to completely ignore the score and use the : > dateCreated field for the score. : > : > On a not directly related issue it seems like if you put the weight : > within the double quotes: : > (title:iphone OR bodytext:iphone OR title:firmware OR : > bodytext:firmware) AND _val_:"ord(dateCreated)^0.1" : > : > the parser complains: : > org.apache.lucene.queryParser.ParseException: Cannot parse : > '(title:iphone OR bodytext:iphone OR title:firmware OR : > bodytext:firmware) AND _val_:"ord(dateCreated)^0.1"': Expected ',' at : > position 16 in 'ord(dateCreated)^0.1' : > : > Thanks, : > Sammy : > : -Hoss
