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chaoticset (2105)

chaoticset
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JAPH. (That's right -- I'm not Really Inexperienced any more.)

I'm not just here, I'm here [perlmonks.org], and here [javajunkies.org] too, I ramble randomly in my philosophical blog [blogspot.com] and my other blog [blogspot.com]. Soon I'll come in a convenient six-pack.

Journal of chaoticset (2105)

Tuesday July 22, 2003
09:07 AM

Siesta

[ #13613 ]
Wrote a letter frequency analyzer, because I wanted to. (Actually, it's the first step in a not-altogether ambitious project to write something that attempts to solve simple shift ciphers automatically.) Did a baseline frequency on a dictionary file and used Storable to keep those stats. (I know, I need something better, but it was the biggest wad of English text I had available that I was reasonably sure wasn't riddled with errors or "stylistic" typos. Any suggestions for a better text are appreciated.)

Started learning how to footle with CGI::Application and HTML::Template, and I'm pleasantly surprised. One little hangup -- not being able to make clickable images -- is not such a big deal, and I suspect there's a way to do it that I haven't discovered yet.

No other news...


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  • If you need any texts of any size check out Project Gutenberg.
    • Any specific ones you'd recommend there? I wouldn't be against using a group of texts -- the process takes about two minutes with a 1.3 meg text file, and I want this to be really good, so I'd be willing to stick a couple hours to it. I'd like the stats to be much more precise than normal, so I'd be all for processing ten or twelve texts. It's just that the ones I happen to have on my drive at home (forgive me) aren't normal. Perl docs, while reasonably grammatic and spell-correct and all, aren't normal
      --

      ------------------------------
      You are what you think.
      • Funny you should ask. About a month ago on the Perl Quiz of the Week mailing list, one of the quizzes concerned repeated substrings. One of the folks used the following text (extracted from an email):
        -----------------------
        'The Life and Opinions of Tristram Shandy, Gentleman' by Laurence Sterne, which when downloaded weighs in at around 1 Mo (as compared with 27 Ko for Dan Schmidt's US constitution).
        -----------------------

        The location of these (from another email):
        http://www.dfan.org/constitution.txt
        http:/
  • If you're intending to solve short newspaper ciphers, consider that they tend to be quotations. Doing a frequency analysis on a set of quotes files might not be a bad idea. Having a separate distribution for "First letter of first word in a sentence, by wordlength" might help gain a toehold.
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