Solr 3.6 is a VERY old release. You won’t see any fixes for that. I would recommend starting with Solr 5.5 and keeping an eye on Solr 6.x, which has just started releases.
Removing -ing endings is pretty aggressive. That changes “tracking meeting” into “track meet”. Most of the time, you’ll be better off with an inflectional stemmer that just converts plurals to singulars and other similar changes. The Porter stemmer does not produce dictionary words. It produces “stems”. Those are the same for the singular and plural forms of a word, but the stem might not be a word. 1. Start using Solr 5.5. That automatically gets you four years of bug fixes and performance improvements. 2. Look at the options for language analysis in the current release of Solr: https://cwiki.apache.org/confluence/display/solr/Language+Analysis <https://cwiki.apache.org/confluence/display/solr/Language+Analysis> 3. Learn the analysis tool in the Solr admin UI. That allows you to explore the behavior. 4. If you really need a high grade morphological analyzer, consider purchasing one from Basis Technology: http://www.rosette.com/solr/ <http://www.rosette.com/solr/> wunder Walter Underwood wun...@wunderwood.org http://observer.wunderwood.org/ (my blog) > On Apr 14, 2016, at 10:17 AM, Sara Woodmansee <swood...@gmail.com> wrote: > > Hello all, > > I posted yesterday, however I never received my own post, so worried it did > not go through (?) Also, I am not a coder, so apologies if not appropriate to > post here. I honestly don't know where else to turn, and am determined to > find a solution, as search is essential to our site. > > We are having a website built with a search engine based on SOLR v3.6. For > stemming, the developer uses EnglishMinimalStemFilterFactory. They were > previously using PorterStemFilterFactory which worked better with plural > forms, however PorterStemFilterFactory was not working correctly with –ing > endings. “icing” becoming "ic", for example. > > Most search terms work fine, but we have inconsistent results (singular vs > plural) with terms that end in -ee, -oe, -ie, -ae, and words that end in -s. > In comparison, the following work fine: words that end with -oo, -ue, -e, -a. > > The developers have been unable to find a solution ("Unfortunately we tried > to apply all the filters for stemming but this problem is not resolved"), but > this has to be a common issue (?) Someone surely has found a solution to this > problem?? > > Any suggestions greatly appreciated. > > Many thanks! > Sara > _____________________ > > DO NOT WORK: Plural terms that end in -ee, -oe, -ie, -ae, and words that > end in -s. > > Examples: > > tree = 0 results > trees = 21 results > > dungaree = 0 results > dungarees = 1 result > > shoe = 0 results > shoes = 1 result > > toe = 1 result > toes = 0 results > > tie = 1 result > ties = 0 results > > Cree = 0 results > Crees = 1 result > > dais = 1 result > daises = 0 results > > bias = 1 result > biases = 0 results > > dress = 1 result > dresses = 0 results > _____________________ > > WORKS: Words that end with -oo, -ue, -e, -a > > Examples: > > tide = 1 result > tides = 1 results > > hue = 2 results > hues = 2 results > > dakota = 1 result > dakotas = 1 result > > loo = 1 result > loos = 1 result > _____________________ >
