Comments for Grant's Grunts: Lucene Edition

Comment on Complex Fields (aka “poly” fields) in Apache Solr by grant_ingersoll

grant_ingersoll — Sat, 10 Sep 2011 20:15:34 +0000

Poly fields currently do not support multi valued. You might be able to hack something using SpanQueries, but that would require custom code.

Comment on Complex Fields (aka “poly” fields) in Apache Solr by JB

JB — Fri, 09 Sep 2011 20:17:23 +0000

@Greg (from 5/27), I’m having the same issue where a PolyField with multiValued=true will return false positives similar to your car example.

A document will have two addresses:
125 Stark Lane, Apt #24, Beverly Hills, CA 90210-1243
123 Fake Road, Arlington, VA 22201

These will parsed into 5 subfields.

If I do a search for
125 Stark Lane, Apt #24, Arlington, VA 90210-1243, the document returns when I believe it shouldn’t.

Any tricks to guarantee the search is ONLY executed across a single PolyField?

Comment on R in Action by Dan Brickley

Dan Brickley — Wed, 07 Sep 2011 18:14:28 +0000

Yes, “that’s not such a big dataset, … you could probably get by in R” seems to be heard regularly on the Mahout users list. It would be very nice to have a few shared R utilities that could interact with (and visualize) at least some of the same data formats as Mahout, e.g. Taste-style preference datamodels.

Comment on Complex Fields (aka “poly” fields) in Apache Solr by Rob

Rob — Wed, 07 Sep 2011 18:13:22 +0000

@Greg thats exactly the problem I have, too!

Comment on Complex Fields (aka “poly” fields) in Apache Solr by Steven Hildreth

Steven Hildreth — Tue, 26 Jul 2011 15:16:07 +0000

Any activity on polygons, perhaps in Solr Trunk? Possible to get some idea on how to do a polygon search? I have a collection of points I need to find documents ‘inside’ of. Thanks for any information.

Comment on TriJUG: Intro to Mahout Slides and Demo examples by bin

bin — Thu, 23 Jun 2011 07:44:16 +0000

Thank you very much ! You help me so much. I can get the result of clustering now.

Comment on Complex Fields (aka “poly” fields) in Apache Solr by Greg

Greg — Fri, 27 May 2011 16:02:14 +0000

Let’s say I create a car PolyField to support a document that looks like this:
field name=id value=123
field name=name value=car picture.jpg
field name=car value=Honda,Red
field name=car value=Toyota,Blue

Now I want to find a picture of a blue Honda, so I run this query:
q=car:Honda,Blue
Behind the scenes Solr will execute a query like this:
car__0:Honda AND car__1:Blue
I believe that the Solr response will include the example doc – id:123 – but doc id:123 does not have a blue Honda, it contains a red Honda and blue Toyota.

How do you avoid “false hits” with PolyFields?
Thx.

Comment on Complex Fields (aka “poly” fields) in Apache Solr by Greg

Greg — Fri, 27 May 2011 15:32:59 +0000

Let’s say I create a car PolyField to support a document that looks like this:

123
car picture.jpg

Honda,Red
Toyota,Blue

Now I want to find a picture of a blue Honda, so I run this query:
q=car:Honda,Blue

Behind the scenes Solr will execute a query like this:
car__0:Honda AND car__1:Blue

I believe that the Solr response will include the example doc – id:123 – but doc id:123 does not have a blue Honda, it contains a red Honda and blue Toyota.

Thx.

Comment on TriJUG: Intro to Mahout Slides and Demo examples by Christoph

Christoph — Fri, 20 May 2011 19:39:48 +0000

Running Frequent Pattern Mining Test in mahout-0.4. step 3 is:

./mahout seqdumper –seqFile patterns/fpgrowth/part-r-00000

Comment on Tika In Action in MEAP by Jack

Jack — Mon, 16 May 2011 10:49:56 +0000

It’s good for me.