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From Peter Carlson <carl...@bookandhammer.com>
Subject Re: Another engine
Date Tue, 10 Sep 2002 15:48:30 GMT
My guess is he has created a form letter to try to get Developer 
support and is emailing all the developer groups that might have any 
similarity. He screwed up and did replace Lucene with Larbin in the 
lower sentence.

--Peter


On Tuesday, September 10, 2002, at 06:53 AM, Otis Gospodnetic wrote:

> Hello,
>
> I like Larbin, too, but that's a web crawler (apples, oranges, bananas)
> The demo doesn't seem to work.
> I'd be curious to see it when it becomes available.
>
> Otis
>
> --- Leo Galambos <Leo.G@seznam.cz> wrote:
>> Hi.
>>
>> I like Lucene (THAT'S RIGHT!), but it doesn't offer me all features I
>>
>> want. That's why I decided to write another JAVA engine. If the
>> features
>> (see below) are interested for you, and you are a developer, that
>> would
>> like to help me with the new engine, PLEASE let me know (use my
>> private
>> mail, I DO NOT WANT TO START A FLAMEWAR HERE, LARBIN IS COOL. Howgh).
>>
>> Thank you.
>>
>> I would like to contribute to Lucene project, but I have chosen
>> different object model for the new engine... :-(
>>
>> Demo runs here: http://somis4.ais.dundee.ac.uk/sheeef/index.jsp (the
>> machine indexes *.ac.uk right now, so the speed may be slower if you
>> try
>> many concurrent queries).
>>
>> Features:
>> - extended Boolean model with p-metrics
>> - index compression via Golomb, Elias-Gamma, and block coding. Better
>>
>> than Lucene for more than 20-50%. Each inverted list is stored in the
>>
>> best coding method. The method is selected by "inverted list
>> metadata"
>> object - it is not hard-coded.
>> - highly configurable dynamization algorithm - it guarantees a good
>> response time for query(), insert(), delete() operations (without
>> degradation of index structure)
>> - universal stemming technique for almost any language (not used in
>> demo)
>> - on distributed architecture, insert() would not lock the index
>> - the engine would be able to simulate Harvest structure of Brokers
>> - ...
>>
>> Speed (indexing 2000 HTML documents, without stemming)
>> Larbin-latest: 1'17"
>> the engine: 1'22"
>> [RH73,IBMJDK131+JIT]
>>
>> Regards,
>>
>> Leo
>
>
>
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