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Groups > comp.lang.java.programmer > #14864

Re: Patricia trie vs binary search.

From Gene Wirchenko <genew@ocis.net>
Newsgroups comp.lang.java.programmer
Subject Re: Patricia trie vs binary search.
Date 2012-05-28 09:20 -0700
Organization A noiseless patient Spider
Message-ID <hr87s756sdaku47lh8sebnegsmskclu637@4ax.com> (permalink)
References <jpmev4$63l$1@dont-email.me> <uAewr.45671$On2.38133@newsfe16.iad> <s0m5s7t5gt33plp5m6cn07g4ovehvedfb7@4ax.com> <ADDwr.2826$9Q6.1871@newsfe18.iad>

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On Sun, 27 May 2012 22:00:14 -0700, Daniel Pitts
<newsgroup.nospam@virtualinfinity.net> wrote:

>On 5/27/12 6:44 PM, Gene Wirchenko wrote:
>> On Sat, 26 May 2012 17:30:17 -0700, Daniel Pitts
>> <newsgroup.nospam@virtualinfinity.net>  wrote:
>>
>> [snip]
>>
>>> I tend to use a Deterministic Finite State Automata for this.  You can
>>> load the entire English dictionary fairly easily with that scheme. Yes,
>>        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>> you use a bit of memory, but unless you're doing this on an embedded
>>> device, its probably not enough memory to be concerned about.
>>
>>       Including all affixes?
>I suppose it depends on the particular dictionary, but we're only 
>talking a few hundred thousand entries, at least with the Moby 
>word-lists as a base:

     Considering how many affixes can be applied to some words, I find
that very questionable:
          self:
               *ish
               *ishly
               un*ish
               un*ishly
               *less
               *lessly
               un*less
               un*lessly
          position:
               *s
               *ed
               *al
               *ally
               re*
               re*s
               re*ed
               *less
               mis*
               *er
               *ers
          friend
               *s
               *ly
               *liness
               be*
               be*ing
               be*ed
               be*er
               be*ers
These are not particularly extreme examples.

[snip]

Sincerely,

Gene Wirchenko

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Thread

Patricia trie vs binary search. markspace <-@.> - 2012-05-24 16:07 -0700
  Re: Patricia trie vs binary search. glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-05-24 23:39 +0000
    Re: Patricia trie vs binary search. markspace <-@.> - 2012-05-24 17:56 -0700
      Password quality (Was: Patricia trie vs binary search.) Lew <lewbloch@gmail.com> - 2012-05-25 09:41 -0700
        Re: Password quality (Was: Patricia trie vs binary search.) markspace <-@.> - 2012-05-25 12:17 -0700
  Re: Patricia trie vs binary search. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-26 17:30 -0700
    Re: Patricia trie vs binary search. markspace <-@.> - 2012-05-26 18:17 -0700
    Re: Patricia trie vs binary search. Gene Wirchenko <genew@ocis.net> - 2012-05-27 18:44 -0700
      Re: Patricia trie vs binary search. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-27 22:00 -0700
        Re: Patricia trie vs binary search. markspace <-@.> - 2012-05-28 08:20 -0700
          Re: Patricia trie vs binary search. markspace <-@.> - 2012-05-28 14:38 -0700
        Re: Patricia trie vs binary search. Gene Wirchenko <genew@ocis.net> - 2012-05-28 09:20 -0700
          Re: Patricia trie vs binary search. Lew <noone@lewscanon.com> - 2012-05-28 21:54 -0700
            Re: Patricia trie vs binary search. Gene Wirchenko <genew@ocis.net> - 2012-05-29 09:14 -0700
              Re: Patricia trie vs binary search. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-29 09:55 -0700
                Re: Patricia trie vs binary search. Gene Wirchenko <genew@ocis.net> - 2012-05-29 11:17 -0700
                Re: Patricia trie vs binary search. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-29 11:22 -0700
                Re: Patricia trie vs binary search. Gene Wirchenko <genew@ocis.net> - 2012-05-29 14:44 -0700
                Re: Patricia trie vs binary search. Lew <lewbloch@gmail.com> - 2012-05-29 14:03 -0700
                Re: Patricia trie vs binary search. Gene Wirchenko <genew@ocis.net> - 2012-05-29 14:49 -0700
                Re: Patricia trie vs binary search. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-29 15:23 -0700
                Re: Patricia trie vs binary search. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-29 15:39 -0700
                Re: Patricia trie vs binary search. Gene Wirchenko <genew@ocis.net> - 2012-05-29 16:08 -0700
                Re: Patricia trie vs binary search. Lew <lewbloch@gmail.com> - 2012-05-29 18:25 -0700
            Re: Patricia trie vs binary search. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-29 09:16 -0700
              Re: Patricia trie vs binary search. Jeff Higgins <jeff@invalid.invalid> - 2012-05-29 13:37 -0400
                Re: Patricia trie vs binary search. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-29 10:49 -0700
                Re: Patricia trie vs binary search. Jeff Higgins <jeff@invalid.invalid> - 2012-05-29 13:58 -0400
                Re: Patricia trie vs binary search. Jeff Higgins <jeff@invalid.invalid> - 2012-05-29 14:20 -0400
                Re: Patricia trie vs binary search. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-29 11:21 -0700
                Re: Patricia trie vs binary search. Jeff Higgins <jeff@invalid.invalid> - 2012-05-29 14:29 -0400
                Re: Patricia trie vs binary search. Jeff Higgins <jeff@invalid.invalid> - 2012-05-29 15:00 -0400
  Re: Patricia trie vs binary search. Jeff Higgins <jeff@invalid.invalid> - 2012-05-29 09:24 -0400

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