Thank you so much Alessandro. But i do not find any difference with the quality of the clustering results when I change the hl.fragszie to a even though I've set my carrot.produceSummary to true.
Regards, Edwin On 1 June 2015 at 17:31, Alessandro Benedetti <benedetti.ale...@gmail.com> wrote: > Only to clarify the initial mail, The carrot.fragSize has nothing to do > with the number of clusters produced. > > When you select to work with field summary ( you will work only on snippets > from the original content, snippets produced by the highlight of the query > in the content), the fragSize will specify the size of these fragments. > > From Carrot documentation : > > carrot.produceSummary > > When true, the carrot.snippet > <https://wiki.apache.org/solr/ClusteringComponent#carrot.snippet> field > (if > no snippet field, then the carrot.title > <https://wiki.apache.org/solr/ClusteringComponent#carrot.title> field) > will > be highlighted and the highlighted text will be used for clustering. > Highlighting is recommended when the snippet field contains a lot of > content. Highlighting can also increase the quality of clustering because > the clustered content will get an additional query-specific context. > carrot.fragSize > > The frag size to use for highlighting. Meaningful only when > carrot.produceSummary > <https://wiki.apache.org/solr/ClusteringComponent#carrot.produceSummary> > is > true. If not specified, the default highlighting fragsize (hl.fragsize) > will be used. If that isn't specified, then 100. > > > Cheers > > 2015-06-01 2:00 GMT+01:00 Zheng Lin Edwin Yeo <edwinye...@gmail.com>: > > > Thank you Stanislaw for the links. Will read them up to better understand > > how the algorithm works. > > > > Regards, > > Edwin > > > > On 29 May 2015 at 17:22, Stanislaw Osinski < > > stanislaw.osin...@carrotsearch.com> wrote: > > > > > Hi, > > > > > > The number of clusters primarily depends on the parameters of the > > specific > > > clustering algorithm. If you're using the default Lingo algorithm, the > > > number of clusters is governed by > > > the LingoClusteringAlgorithm.desiredClusterCountBase parameter. Take a > > look > > > at the documentation ( > > > > > > > > > https://cwiki.apache.org/confluence/display/solr/Result+Clustering#ResultClustering-TweakingAlgorithmSettings > > > ) > > > for some more details (the "Tweaking at Query-Time" section shows how > to > > > pass the specific parameters at request time). A complete overview of > the > > > Lingo clustering algorithm parameters is here: > > > http://doc.carrot2.org/#section.component.lingo. > > > > > > Stanislaw > > > > > > -- > > > Stanislaw Osinski, stanislaw.osin...@carrotsearch.com > > > http://carrotsearch.com > > > > > > On Fri, May 29, 2015 at 4:29 AM, Zheng Lin Edwin Yeo < > > edwinye...@gmail.com > > > > > > > wrote: > > > > > > > Hi, > > > > > > > > I'm trying to increase the number of cluster result to be shown > during > > > the > > > > search. I tried to set carrot.fragSize=20 but only 15 cluster labels > is > > > > shown. Even when I tried to set carrot.fragSize=5, there's also 15 > > labels > > > > shown. > > > > > > > > Is this the correct way to do this? I understand that setting it to > 20 > > > > might not necessary mean 20 lables will be shown, as the setting is > for > > > > maximum number. But when I set this to 5, it should reduce the number > > of > > > > labels to 5? > > > > > > > > I'm using Solr 5.1. > > > > > > > > > > > > Regards, > > > > Edwin > > > > > > > > > > > > > -- > -------------------------- > > Benedetti Alessandro > Visiting card : http://about.me/alessandro_benedetti > > "Tyger, tyger burning bright > In the forests of the night, > What immortal hand or eye > Could frame thy fearful symmetry?" > > William Blake - Songs of Experience -1794 England >
