Stemming search

[javed_afroz]

Hi,

I was recently asked by my client to demonstrate stemming search in Alfresco. Does alfresco supports stemming? I was looking into the analyzers available and I found EnglishSnowballAnalyser available from datamodel package of alfresco and I changed analyzer setting for content in dataTypeAnalyzers.properties. but it dint worked. I searched everywhere but couldn't find anything.

Any help will be appreciated.

Thanks.

[abarisone]

Hi,
I've found some resources about search stemming:
http://wiki.alfresco.com/wiki/Search
http://wiki.alfresco.com/wiki/Full-Text_Search_Configuration#Data_dictionary_options
https://forums.alfresco.com/forum/developer-discussions/other-apis/lucene-tokenization-09232009-1559

Hope these helps.
Regards,
Andrea

[javed_afroz]

Hi,

Thanks, for quick reply. I have gone through those links but couldn't find much help. I wish to know if there is any configuration regarding stemming that I am missing here. Is alfresco stemming is disabled by default?

Thanks,

[javed_afroz]

Knock, knock.. Is there nobody who can help me on this?

Thanks in advance..

[javed_afroz]

Its been 13 days since I posted the topic, I thought Alfresco forum will be very helpful for this basic configuration issue. Still waiting

Thanks,
Javed

[mrogers]

Yours is a specialized question and far from a "basic configuration issue".


I see issues like MNT-8502 which are testing stemming so clearly something is working.    You shouldn't have to "configure" anything.

[javed_afroz]

Hi,

I have gone through the issue you posted and it seems the guy was having a problem with multilingual stemming. I am looking for english stemming search. What I have is a default installation of Alfresco 4.0.e community on mysql. At the very first time when alfresco starts up I have added 3 file in company home folder with following texts:

1. Fished
2. Fisher
3. Fishing

Expected behavior is when I search for either of the three texts above, all of the three should show up, but Alfresco shows only 1 document with exact match. I have tried changing the analyzers in the dataTypeAnalyzers.properties to "EnglishSnowballAnalyzer" but of no use. I think Lucene supports stemming (Correct me if I am wrong). Does alfresco not supports stemming search?

Thanks,
Javed

[mrogers]

It probably depends upon the search query you use.   Simple search by name tends to use exact text matching since people don't expect the oddities of tokenisation on names.    

[javed_afroz]

I have tried it from Node Browser (using Lucene) as well with all the possible examples given in Alfreco FTS wiki (http://wiki.alfresco.com/wiki/Full_Text_Search_Query_Syntax) but same results are occurring and that is what made me think that I might missing something in config.

I have used - TEXT:Fished

Can you give some example of the query to evaluate alfresco stemming?

Thanks.