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[OT] Looking for a text algorithm

  • To: XML Developers List <xml-dev@l...>
  • Subject: [OT] Looking for a text algorithm
  • From: David Megginson <david@m...>
  • Date: Sat, 8 Mar 2003 09:18:15 -0500

text algorithm
I'm looking for references to a specific kind of text algorithm -- the
algorithm should generate a number (say, 32 or 64 bits) for any text
string of any length, similar to a hash.  However, it should be
possible to compare the numbers for different strings to tell how
close they are to each other.  For example, the numbers for

1. To be or not to be.

2. Two bees or not two bees.

3. I don't know whether to be or not to be.

should indicate that three strings are relatively close to each other
(while a hash number would give no indication at all).

I'm asking only out of interest, because I came up with a simple
algorithm to do this while I was in the shower yesterday, and it would
be fun to see how close it is to what the pros use for spam detection
and so on.

Note that I'm not looking for algorithms based on edit-distance,
bag-of-words, and so on.

Thanks in advance,


David Megginson, david@m..., http://www.megginson.com/


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