Hi Edwin, If the number of words that should not be stemmed is not high you could use KeywordMarkerFilterFactory to flag those words as keywords and it should prevent stemmer from changing them. Depending on what you want to achieve, you might not be able to avoid using stemmer at indexing time. If you want to find documents that contain only “walking” with search term “walk”, then you have to stem at index time. Cases when you use stemming on query time only are rare and specific. If you want to prefer exact matches over stemmed matches, you have to index same content with and without stemming and boost matches on field without stemming.
HTH, Emir -- Monitoring - Log Management - Alerting - Anomaly Detection Solr & Elasticsearch Consulting Support Training - http://sematext.com/ > On 1 Nov 2017, at 10:11, Zheng Lin Edwin Yeo <edwinye...@gmail.com> wrote: > > Hi, > > We are currently using KStemFilterFactory in Solr, but we found that it is > actually doing stemming on non-English words like "ximenting", which it > stem to "ximent". This is not what we wanted. > > Another option is to use the HunspellStemFilterFactory, but there are some > English words like "running", walking" that are not being stemmed. > > Would like to check, is it advisable to use Stemming at index? Or we should > not use Stemming at index time, but at query time, do a search for the > stemmed words as well, like for example, if the user search for "walking", > we will do the search together with "walk", and the actual word of walking > will have higher weightage. > > I'm currently using Solr 6.5.1. > > Regards, > Edwin
