Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery
 
PerlMonks  

Re: Using Word Tokens as Features

by igelkott (Curate)
on Apr 11, 2013 at 22:56 UTC ( #1028245=note: print w/ replies, xml ) Need Help??


in reply to Using Word Tokens as Features

Rather than building up the "columns" (almost certainly a "hash" in Perl) one new word at a time, I'd suggest that you start out with a reasonably complete corpus for the language/subject you wish to cover. This will make it a bit easier to maintain counts between messages and the number of zero columns for a particular message won't depend on the order it was processed (otherwise, your first message would have no zero columns).

As for the word counting task itself, look into split and hash. The basic procedure is rather simple but you'll need to decide how to handle case, hyphenation and maybe even stemming.


Comment on Re: Using Word Tokens as Features

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1028245]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (2)
As of 2014-09-17 03:43 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    How do you remember the number of days in each month?











    Results (57 votes), past polls