From: "Grégoire Seux" <kamaradclimber@gmail.com>
To: caml-list <caml-list@inria.fr>
Subject: range of hash function
Date: Sat, 20 Feb 2010 14:24:23 +0530 [thread overview]
Message-ID: <1ae8fe881002200054s2e9752d8x620695c3c4e27939@mail.gmail.com> (raw)
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hello !
i would like to use the polymorhpic hash function on strings. But i would
like to know what is the probability of a collision between two hashes.
my first question is about the range of the Hashtbl.hash function: what is
its range ? ( string -> [1..N] ?)
the second question is : can i assume that the result is a uniform
distribution over [1..N] ? (for 10⁶ words which is an estimation of the
english vocabulary size)
the third one is : is it possible to predict which will be the collision ? I
mean collisions are between words which are very 'similar' (for ex: "boy"
and "boys") or are completely unpredictable.
thanks !
--
Grégoire Seux
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next reply other threads:[~2010-02-20 8:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-20 8:54 Grégoire Seux [this message]
2010-02-20 10:52 ` [Caml-list] " Goswin von Brederlow
2010-02-20 12:39 ` ygrek
2010-02-20 13:54 ` Jacques Garrigue
2010-02-21 23:10 ` Richard Jones
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