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Re: comparing strings - better than soundex

by dree (Monsignor)
on Aug 14, 2002 at 08:51 UTC ( #190010=note: print w/replies, xml ) Need Help??


in reply to comparing strings - better than soundex

If you want to compare two words for its sound similarity, better algorithms than Soundex are:

Text::Metaphone and Text::DoubleMetaphone.

If you want string comparison (i.e. to order the results after a multiple match done by the above) you can try:

Text::Levenshtein or Text::WagnerFischer

If you want to compare entire phrases you can try also Text::PhraseDistance
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Re: Re: comparing strings - better than soundex
by nmerriweather (Friar) on Aug 14, 2002 at 16:54 UTC
    oh wow! great! i think metaphone was the one i had seen before. thats a great idea using those mods to order results too. you just saved me a few hours of work. and now metaphone will appear in the search box for the next person!

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[oiskuu]: The useful bits that relate to your process can be found under /proc/self. What information are you thinking of? Tty name?
[tye]: I just daemonized and getlogin() still knew who I had been.
[tye]: perhaps loginuid ? Not that I concede that something not being in /proc means it is not useful.
[Corion]: tye: That's really interesting, but maybe it is because getlogin() returns the name, or the uid, so if that user has been replaced by another user with the same uid in the meantime, that's no problem to the system...
[davido]: or on ubuntu /var/run/utmp
[Corion]: Otherwise, I would imagine that a user with a process still alive would lock that information in memory.
[davido]: so last -f /var/run/utmp on ubuntu provides similar (though more verbose) info
[oiskuu]: glibc getlogin just does ttyname() and falls back on getutline(); it's not security related at all. (reminds me of sendmail and remote finger services of the naive early spam era)
[Corion]: But yes, "who started this process" is interesting information :)
[tye]: no, I really believe that "login user" was added as a fundamental bit of info about each process in order to enhance the usefulness of auditing

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