RE: [boost] [Gauge for interest] Minimal perfect hashfunctiongenerator

Behalf Of Hartmut Kaiser
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I've tried to get my hands on the cited papers, but was able to find only one of them. Could you provide a concrete pointer where to get the Tong paper from?
The University of Auckland does not have the Uzgalis, Todd technical report "Hashing Myths" online. An overview presentation that is enough to get going is here: http://www.iticse2002.dk/conference/sessionmat/algorithms/1.pdf
From the first slide:
The work presented here is almost entirely due to Robert Uzgalas ("Buz"), who single handedly reinvented hashing in the early 1990s. For reasons unknown, Robert never disseminated his work to the wide audience that it deserved. His paper, "Hashing Myths" remains unpublished, and his results are virtually unknown. Here is a snippet related by one of the authors, R. Uzgalis http://www.serve.net/buz/hash.adt/java.000.html Hope that helps, Matt Hurd. IMPORTANT: The information contained in this email and/or its attachments is confidential. If you are not the intended recipient, please notify the sender immediately by reply and immediately delete this message and all its attachments. Any review, use, reproduction, disclosure or dissemination of this message or any attachment by an unintended recipient is strictly prohibited. Neither this message nor any attachment is intended as or should be construed as an offer, solicitation or recommendation to buy or sell any security or other financial instrument. Neither the sender, his or her employer nor any of their respective affiliates makes any warranties as to the completeness or accuracy of any of the information contained herein or that this message or any of its attachments is free of viruses.

Hurd, Matthew wrote:
The University of Auckland does not have the Uzgalis, Todd technical report "Hashing Myths" online.
An overview presentation that is enough to get going is here: http://www.iticse2002.dk/conference/sessionmat/algorithms/1.pdf
From the first slide:
The work presented here is almost entirely due to Robert Uzgalas ("Buz"), who single handedly reinvented hashing in the early 1990s.
For reasons unknown, Robert never disseminated his work to the wide audience that it deserved. His paper, "Hashing Myths" remains unpublished, and his results are virtually unknown.
Here is a snippet related by one of the authors, R. Uzgalis http://www.serve.net/buz/hash.adt/java.000.html
Thanks for the pointers! I'm currently working on another type of MPH function generator, which is based on stochastic functions and seems to provide minimal perfect hash functions for strings even for large key sets (> 10e6 keys). The drawback will be, that the hashing function is O(n) with respect to the number of keys. This technique additionally allows to map strings (or other byte sequences) to unique integers, which I'll try to incorporate as a complement to the MPH I've described earlier. These integers then yould be used to construct the MPH. Again this has the drawback of a hashing function with is O(n) this time with respect to the key length. Regards Hartmut
participants (2)
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Hartmut Kaiser
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Hurd, Matthew