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Re: How to calculate parent document relevance from child matches - ElasticSearch - [mail # user]
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...On Fri, 2013-01-18 at 01:50 -0800, Mario wrote:
> Hi Clinton,
>
>
> Thanks for clarifying how parent/child relations are sharded and for
> the interesting input to our relevance problem...
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... to apply our own scoring script, which
> needs to use the scoring data stored in the matching children to
> calculate parent relevance. It doesn't look as if this is not possible
> with top...
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[+ show more]
[- hide]
| ... is
> updated so nested documents are maybe a better choice. Would this give
> us additional options to solve the relevance problem?
If you need to involve all children in the calculation, then yes... |
| ... am trying to implement a custom relevance algorithm with
> > ElasticSearch using a parent/child document relationship. I
> understand
> > that classic relational... |
| ... database joins are not possible but
> there is
> > some limited join functionality using parent/child or
> nested
> > documents. I like to calculate a relevance... |
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Author: Clinton Gormley,
2013-01-18, 09:53
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Re: How to calculate parent document relevance from child matches - ElasticSearch - [mail # user]
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... to be the most
> > meaningful choice otherwise I cannot compute the parent relevance
> > correctly. I also have ElasticSearch generating the identifiers when
> > the data is indexed.
>
> Yes, parent...
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...Hi Clinton,
Thanks for clarifying how parent/child relations are sharded and for the
interesting input to our relevance problem. It looks as if it is something
like this I am looking...
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[+ show more]
[- hide]
| ...
the scoring data stored in the matching children to calculate parent
relevance. It doesn't look as if this is not possible with top_children
unless I misunderstand how the scoring works... |
| ... this give us additional options to solve the
relevance problem?
Thanks
Mario
On Friday, January 18, 2013 10:21:48 AM UTC+1, Clinton Gormley wrote:
>
> Hi Mario
>
> On Thu, 2013-01-17 at 12... |
| ...:58 -0800, Mario wrote:
> > I am trying to implement a custom relevance algorithm with
> > ElasticSearch using a parent/child document relationship. I understand
> > that classic relational... |
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Author: Mario,
2013-01-18, 09:50
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Re: How to calculate parent document relevance from child matches - ElasticSearch - [mail # user]
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...
>>> > > meaningful choice otherwise I cannot compute the parent
>>> > relevance
>>> > > correctly. I also have ElasticSearch generating the
>>> > identifiers when...
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...,
>>> >
>>> >
>>> > Thanks for clarifying how parent/child relations are sharded and for
>>> > the interesting input to our relevance problem. It looks as if it is
>>> > something like this I am looking...
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[+ show more]
[- hide]
| ...
>>> > needs to use the scoring data stored in the matching children to
>>> > calculate parent relevance. It doesn't look as if this is not possible
>>> > with top_children unless I misunderstand how... |
| ... documents are maybe a better choice. Would this give
>>> > us additional options to solve the relevance problem?
>>>
>>> If you need to involve all children in the calculation, then yes... |
| ...
>>> >
>>> > On Thu, 2013-01-17 at 12:58 -0800, Mario wrote:
>>> > > I am trying to implement a custom relevance algorithm with
>>> > > ElasticSearch using a parent/child document... |
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Author: Mario,
2013-01-19, 06:46
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Re: How to calculate parent document relevance from child matches - ElasticSearch - [mail # user]
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... otherwise I cannot compute the parent
>> > relevance
>> > > correctly. I also have ElasticSearch generating the
>> > identifiers when
>> > > the data is indexed...
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...-01-18 at 01:50 -0800, Mario wrote:
>> > Hi Clinton,
>> >
>> >
>> > Thanks for clarifying how parent/child relations are sharded and for
>> > the interesting input to our relevance problem...
|
[+ show more]
[- hide]
| ... functionality. We want to apply our own scoring script, which
>> > needs to use the scoring data stored in the matching children to
>> > calculate parent relevance. It doesn't look... |
| ... all children when the parent is
>> > updated so nested documents are maybe a better choice. Would this give
>> > us additional options to solve the relevance problem?
>>
>> If you need... |
| ...:
>> > Hi Mario
>> >
>> > On Thu, 2013-01-17 at 12:58 -0800, Mario wrote:
>> > > I am trying to implement a custom relevance algorithm with
>> > > Elastic... |
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Author: Igor Motov,
2013-01-18, 22:12
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Re: Relevance Feedback Lucene+Algorithms - Lucene - [mail # user]
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...You might also want to look at that the LucQE project (http://sourceforge.net/projects/lucene-qe/), which implement a couple of automated relevance feedback methods including Rocchio...
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...'s formula. On 2/15/06, Koji Sekiguchi wrote: Dave Kor, Research Assistant Center for Information Mining and Extraction School of Computing National University of Singapore. ...
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Author: Dave Kor,
2006-02-15, 10:10
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NutchHadoopTutorial - Nutch - [wiki]
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... into the Nutch or Hadoop architecture, resources relating to these topics can be found here. It only tells how to get the systems up and running. There are also relevant resources at the end...
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... node I mean that it will run the Hadoop services that coordinate with the slave nodes (all of the other computers) and it is the machine on which we performed our crawl.
Downloading Hadoop...
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[+ show more]
[- hide]
| ... the first time you login to each computer asking if you want to add the computer to the known hosts. Answer yes to the prompt. Once the key is copied you shouldn't have to enter a password when... |
| ... machine we are running the master node, we will also need the local computer in this slave list. Here is what the slaves file will look like to start.
localhost
It comes this way to start so... |
| .... The name node is the coordinator and stores what blocks (not really files but you can think of them as such for now) are on what computers and what needs to be replicated to different data nodes... |
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http://wiki.apache.org/nutch/NutchHadoopTutorial
Author: LewisJohnMcgibbney,
2012-03-20, 14:44
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Dimensional Reduction - Apache Mahout - Apache Software Foundation - Mahout - [wiki]
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... a vector over documents where the components are the relevance score), computing co-occurrences in a collaborative filtering context (people who viewed X also viewed Y, or ratings-based CF like...
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... of summation in A*A^t.times(v), you can do the same computation as one pass over the rows of A instead of two).
After k iterations of v_i = A.timesSquared(v_(i-1)), a k- by -k tridiagonal matrix has...
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[+ show more]
[- hide]
| ... orthogonality (currently computed, but not checked against constraints).
Example: SVD of ASF Mail Archives on Amazon Elastic MapReduce
This section walks you through a complete example of running... |
| ... of rows in E (i.e. E^T is n x p) the result of the matrixmult would give me an m x p matrix (m=6076937, p=87).
However, in practice, computing the matrix product of two matrices as a map... |
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https://cwiki.apache.org/confluence/display/MAHOUT/Dimensional+Reduction
Author: Grant Ingersoll,
2011-11-09, 00:00
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SummerOfCode2011ProjectRankingTerrier - Lucene - Lucene - [wiki]
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...Return to main page
A short overview of Terrier's scoring architecture
Terrier is another Java-based, open source search engine developed at the School of Computing Science, University...
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....
Also, even this idea is false. BM25, for instance, does not have its own idfBM25() method in Idf; it is computed in the BM25 class directly.
Idf also has methods that compute the logarithm...
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[+ show more]
[- hide]
| ... randomness models.
AfterEffect subclasses compute the gain.
Normalisation is applied on the "raw" term frequencies before they are passed to the basic model.
These classes define their own... |
| ....
Statistics availability in Lucene
The content of the EntryStatistics class, i.e. the term statistics, is conveniently mirrored by the TermContext class. The relevant fields are
docFreq corresponds... |
| ... the real length; it may be worth to have both, since the more options, the more possibilities to experiment with;
avg. field length: has to be computed as in MockBM25Similarity... |
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http://wiki.apache.org/lucene-java/SummerOfCode2011ProjectRankingTerrier
Author: DavidNemeskey,
2011-06-20, 12:51
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NewScoring - Nutch - [wiki]
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...-analysis to get a single global relevancy score for each url. Building a webgraph assumes that all links are stored in the current segments to be processed. Links are not held over from one processing...
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... links to D which links back to A. This program is computationally expensive and usually, due to time and space requirement, can't be run on more than a three or four level depth. While it does...
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[+ show more]
[- hide]
| ... and link cycles and then allow those links to be removed. Problem is the class is very expensive computationally. You can set the depth you want it to run but it is worse than exponential so I... |
| ... scores. Some things to consider:
Pagerank is just one of over 200 signals that google uses (if they still use it) to determine relevancy. Even if Google still uses it it most likely has... |
| ... changed. Link analysis scores are good global relevancy scores, but a link score does not a search engine make today. Oh how I wish it was that simple. LinkRank is a good starting point, that... |
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http://wiki.apache.org/nutch/NewScoring
Author: LewisJohnMcgibbney,
2011-08-07, 12:55
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PublicServers - Nutch - [wiki]
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... of Chinese language websites in North America.
Ecolhub Web Search an E. coli specific search engine based on Nutch. EcoliHub WebSearch includes only those sites relevant to E. coli, thereby...
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... discovery and search add-on. Computes similarity between pages using Nutch crawls.
SymbolHound - A search engine targeted toward programming- and math- related queries. Allows users to search...
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http://wiki.apache.org/nutch/PublicServers
Author: DallanQuass,
2011-11-10, 21:40
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