I think you need the feature in SOLR-629 that adds fuzzy to edismax. https://issues.apache.org/jira/browse/SOLR-629
The patch on that issue is for Solr 4.x, but I believe someone is working on a new patch. wunder Walter Underwood wun...@wunderwood.org http://observer.wunderwood.org/ (my blog) > On Feb 7, 2018, at 2:10 AM, Emir Arnautović <emir.arnauto...@sematext.com> > wrote: > > Hi Sravan, > Edismax has ’sow’ parameter that results in edismax to pass query to field > analysis, but not sure how it will work with fuzzy search. What you might do > is use _query synthax to separate shingle and non shingle queries, e.g. > q=_query({!edismax sow=false qf=title_bigrams}$v) OR _query({!edismax > qf=title}$v)&$v=some movie title > > HTH, > Emir > -- > Monitoring - Log Management - Alerting - Anomaly Detection > Solr & Elasticsearch Consulting Support Training - http://sematext.com/ > > > >> On 7 Feb 2018, at 10:55, Sravan Kumar <sra...@caavo.com> wrote: >> >> We have the following two fields for our movie title search >> - title without symbols >> a custom analyser with WordDelimiterFilterFactory, SynonymFilterFactory and >> other filters to retain only alpha numeric characters. >> - title with word bi grams >> a custom analyser with solr.ShingleFilterFactory to generate "bi gram" word >> tokens with '_' as separator. >> >> A custom similarity class is used to make tf & idf values as 1. >> >> Edismax query parser is used to perform all searches. Phrase boosting (pf) >> is also used. >> >> There are couple of issues while searching: >> 1> BiGram field doesn't generate bi grams if the white spaces in the query >> are not escaped. >> - For example, if the query is "pursuit of happyness", then bi grams are >> not generated. This is due to the fact that the edismax query parser >> tokenizes based on whitespaces before passing the string to >> analyser(correct me if I am wrong). >> But in case of "pursuit\ of\ happyness", they are as the string which is >> passed to the analyser is with the whitespace. >> >> 2> Fuzzy search doesn't work in whitespace escaped queries. >> Ex: "pursuit~2\ of\ happiness~1" >> >> 3> Edismax's Phrase boosting doesn't work the way it should in >> non-whitespace escaped fuzzy queries. >> >> If the query is "pursuit~2 of happiness~1" (without escaping whitespaces) >> >> fuzzy queries are generated >> (title_name:pursuit~2), (title_name:happiness~1) in the parsed query. >> But,edismax pf (phrase boost) generates query like >> title_name:"pursuit (2 pursuit2) of happiness (1 happiness1)" >> This means the analyser got the original query consisting the fuzzy >> operator for phrase boosting. >> >> >> 1> How whitespaces should be handled in case of filters like >> solr.ShingleFilterFactory to generate bi grams? >> 2> If generating bi grams requires whitespaces escaped and fuzzy searches >> not, how do we accomodate both these in a single solr request and scored >> together. >> >> >> >> - >> -- >> Regards, >> Sravan >
