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Posted to java-user@lucene.apache.org by Ganesh Ramakrishnan <ga...@yahoo.com> on 2006/03/31 03:28:43 UTC
Implemented subclasses of Similarity class in Lucene
Hi
Is anyone aware of subclasses of the Similarity class in Lucene? Two subclasses are: DefaultSimilarity and SimilarityDelegator . Are any other implemented subclasses of Similarity, developed by anyone else available on the web? For example, Language Model based similarity, or Okapi-BM similarity or different TFIDF weighing scehemes for similarity.
If so, can you point me to them?
Thanks and regards,
Ganesh.
---------------------------------
Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates.
Re[2]: Implemented subclasses of Similarity class in Lucene
Posted by Charlie <ch...@gmail.com>.
Hi Edgar,
Are there any technical reports explaining your design and
implementation of LM on Lucene? Or what source files are exactly "LM
extension"?
--
Best regards,
Charlie
---
Friday, May 26, 2006, 7:36:14 AM, you wrote:
> Hi Edgar,
> While doing the integration/updating for Lucene 1.9, could you be more
> open and clear about the design so that people can
> 1)Understand it,
> 2)Extend it,
> Just an recommendation.
> Cheers,
> Murat
> Edgar Meij wrote:
>> Hi Ganesh,
>>
>> We have developed a Language Modeling extension to Lucene at the
>> University of Amsterdam. It can be found here:
>>
>> http://ilps.science.uva.nl/Resources/#lm-lucen
>>
>> It was build around Lucene 1.4.3, so it isn't source compatible with
>> the latest Lucene version. We are currently working on
>> integrating/updating it to Lucene 1.9.
>>
>> Best,
>>
>> Edgar Meij
>>
>>
>> On 3/31/06, Ganesh Ramakrishnan
>> <ga...@yahoo.com> wrote:
>>
>>> Hi
>>>
>>> Is anyone aware of subclasses of the Similarity class in Lucene? Two
>>> subclasses are: DefaultSimilarity and SimilarityDelegator . Are any
>>> other implemented subclasses of Similarity, developed by anyone else
>>> available on the web? For example, Language Model based similarity,
>>> or Okapi-BM similarity or different TFIDF weighing scehemes for
>>> similarity.
>>>
>>> If so, can you point me to them?
>>>
>>> Thanks and regards,
>>> Ganesh.
>>>
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Re: Implemented subclasses of Similarity class in Lucene
Posted by Murat Yakici <mu...@cis.strath.ac.uk>.
Hi Edgar,
While doing the integration/updating for Lucene 1.9, could you be more
open and clear about the design so that people can
1)Understand it,
2)Extend it,
Just an recommendation.
Cheers,
Murat
Edgar Meij wrote:
> Hi Ganesh,
>
> We have developed a Language Modeling extension to Lucene at the
> University of Amsterdam. It can be found here:
>
> http://ilps.science.uva.nl/Resources/#lm-lucen
>
> It was build around Lucene 1.4.3, so it isn't source compatible with
> the latest Lucene version. We are currently working on
> integrating/updating it to Lucene 1.9.
>
> Best,
>
> Edgar Meij
>
>
> On 3/31/06, Ganesh Ramakrishnan <ga...@yahoo.com> wrote:
>
>> Hi
>>
>> Is anyone aware of subclasses of the Similarity class in Lucene? Two
>> subclasses are: DefaultSimilarity and SimilarityDelegator . Are any
>> other implemented subclasses of Similarity, developed by anyone else
>> available on the web? For example, Language Model based similarity,
>> or Okapi-BM similarity or different TFIDF weighing scehemes for
>> similarity.
>>
>> If so, can you point me to them?
>>
>> Thanks and regards,
>> Ganesh.
>>
>> ---------------------------------
>> Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low
>> rates.
>>
>
>
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Re: Implemented subclasses of Similarity class in Lucene
Posted by Edgar Meij <ed...@gmail.com>.
Hi Ganesh,
We have developed a Language Modeling extension to Lucene at the
University of Amsterdam. It can be found here:
http://ilps.science.uva.nl/Resources/#lm-lucen
It was build around Lucene 1.4.3, so it isn't source compatible with
the latest Lucene version. We are currently working on
integrating/updating it to Lucene 1.9.
Best,
Edgar Meij
On 3/31/06, Ganesh Ramakrishnan <ga...@yahoo.com> wrote:
> Hi
>
> Is anyone aware of subclasses of the Similarity class in Lucene? Two subclasses are: DefaultSimilarity and SimilarityDelegator . Are any other implemented subclasses of Similarity, developed by anyone else available on the web? For example, Language Model based similarity, or Okapi-BM similarity or different TFIDF weighing scehemes for similarity.
>
> If so, can you point me to them?
>
> Thanks and regards,
> Ganesh.
>
> ---------------------------------
> Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates.
>
--
'An approximate answer to the right question is worth a great deal
more than a precise answer to the wrong question'
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