Well, the similar definition that I'm looking for is the number 2, maybe the number 3, but to start the number 2 is enough. If you guys think that is not a Lucene problem what else tool can I use to implement this requirement??

    Thanks

Thiago Moreira
Software Engineer

tmoreira@liferay.com
Liferay, Inc.
Enterprise. Open Source. For Life.


N. Hira wrote:
I don't know how much of this is a Lucene problem, but -- as I'm sure you will inevitably hear from others on the list -- it depends on what your definition of "similar" is.

By similar, do you mean:
1.  Identical, except for variations in case (upper/lower)
2.  Allow 1., but also allow prefixes/suffixes (e.g., "FW:  " or "... (summary")
3.  Allow 1., 2. and permit some new terms ... how many?
4.  Allow all of the above and allow some changes to terms using stemming (E.g., "Google releases Chrome" is similar to "Google announces the release of its new Chrome web browser")
....

I'm sure you see where this is going.  So ... how do you define similar?

Good luck!

-h
----------------------------------------------------------------------
Hira, N.R.
Cognocys, Inc.

On 03-Sep-2008, at 2:52 PM, Thiago Moreira wrote:


    Hey all,

    I want to know how much two Strings are similar! The thing is: I'm processing an email box and I want to group all messages that have the subject similar, makes sense?? I looked on the documentation but I didn't find how to accomplish this. It's not necessary add the messages or the subjects on some kind of index. I'm using 2.3.2 version of Lucene.

    Anyone has some idea?

    Thanks in advance.
-- 
Thiago Moreira
Software Engineer
tmoreira@liferay.com
Liferay, Inc.
Enterprise. Open Source. For Life.
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