X-Git-Url: http://jsfdemo.indexdata.com/?a=blobdiff_plain;f=NEWS;h=946f3f45d8df17cd0bd69e081e585ef631d863bb;hb=812bca889b5e5fb884b5a4785dce0d26095e099a;hp=2c40afcab2ea438d4d590a33a0a3dd243029f248;hpb=2d517dcaa085fcdcdbbf587b76d45a97eca35571;p=pazpar2-moved-to-github.git diff --git a/NEWS b/NEWS index 2c40afc..946f3f4 100644 --- a/NEWS +++ b/NEWS @@ -1,3 +1,80 @@ +--- 1.6.22 2012/10/11 + +Requires YAZ-4.2.40 to support native solr support. + +Fix and improve logic handling whether or not to re-do search on sort +order changes. A sort order with change in ascending/descending only +whould not trigger a new search, which is required for targets with +native sorting capabilities. Each client is now checked if instructions +(sortmap) exist for native sorting and only client that does requires +it is researched. Other clients is just re-ingesting the records, +they already have. The resultset is now cleared if any researching +is done. + +Connection sharing between session has broken since version 1.6.8 with +introduction of logic that would minimize searching if pazpar2 could +detect this based on same query and limits and partly sort order. +This could lead to segementations violations. + +Added a chapter in the manaul about relevance ranking. + +--- 1.6.21 2012/09/24 + +Rank tweak: follow=number will increase mult by number if two terms +occur next to each other; number-1 if they are one term apart , .. 0 +if they are number a part (all in order). Default is 0 (following +terms has no effect). + +Rank tweak: lead=k will divide mult by 1 + log2(1+k*l) where k is +value given by lead and l is length from beginning of field where +term occurs (l=0 for first term, l=1 for second term, ..). Default +value of k is 0.0. + +Rank tweak: length=strategy. length="linear" if mult is to be divided +by length (existing, default behavior), length="log" if mult is to be +divided by log2(1+length), length="none" if mult is not to be affected +by length. + +--- 1.6.20 2012/09/21 + +Rank algorithm details may be printed as part of show response in +element .. This is only printed if +is used in service. + +Record as returned by show/record command have a minimal indentation +which makes things human-readable. + +New configuration of default sorting criteria (sort-default) in +service definition. If no criteria is defined it will be as before +'relevance'. + +Search command now supports sort parameter just as the show command. +If no parameter is give, it will use the service sort-default value. + +--- 1.6.19 2012/09/18 + +Rank algorithm skips strings that gets normalized to empty string. +For example, & and ! could map to the empty string. The weight for +those terms is now 0 (as if they were not part of the query). + +Rank algorithm does not use CCL from limitmap; only from the query +parameter (user query). + +Obey -w dir. + +--- 1.6.18 2012/09/17 + +Rank algorithm configurable by 'rank' element inside service. So far +only, attribute 'cluster' is recognized. If cluster="yes", multiple +records inside a cluster boosts higher than single records. This +is default behavior and existing behavior. cluster="no" takes the +average score of each record in a cluster. + +--- 1.6.17 2012/09/05 + +Fix bad re-use of connections (connections with changing proxy should not +be reused). + --- 1.6.16 2012/08/22 Fix a bug introduce in 1.6.15 around the position sorting. It resetted the