I've implemented privately a few combinations of these for Vector:
http://nlp.stanford.edu/IR-book/html/htmledition/document-and-query-weighting-schemes-1.html
Now I'm considering to make and contribute a more generic class based
on SMART notation to do this. Usage might be something like:
// i
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Allen Day updated MAHOUT-77:
Attachment: sparse.patch
added DistanceMeasure tests. moved patch level generation up to capture tests
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Allen Day commented on MAHOUT-78:
-
Grant,
I'd be happy to add tests, but I'
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Allen Day updated MAHOUT-78:
Attachment: hbase.patch
> HBase RowResult/BatchUpdate access via Mahout Vector interf
Reporter: Allen Day
Priority: Minor
Attachments: hbase.patch
An adapter class is attached that allows read/write operations on HBase rows
using the Vector interface. This allows, e.g. canopy clustering of rows in an
HBase table.
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Allen Day updated MAHOUT-77:
Attachment: sparse.patch
> DistanceMeasure calculation slow for SparseVec
Reporter: Allen Day
Priority: Minor
Attachments: sparse.patch
ManhattanDistanceMeasure and TanimotoDistanceMeasure assume all vector indices
up to cardinality() must be compared. We can speed this up for SparseVectors
(and others) because Vector implements Iterable
Hi,
I'm writing some adapter classes that allow HBase tables and rows to
be used from Mahout. I have a working HBase row / vector adapter
written, and now going to do another for table / matrix. I'd like to
contribute this to Mahout. A couple of questions:
* what package should this code be in
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Allen Day updated MAHOUT-76:
Attachment: SVD.patch
> Singular Value Decomposition for SparseMatrix / DenseMat
Components: Matrix
Environment: N/A
Reporter: Allen Day
Priority: Minor
Adding a new class and test harness for a SVD implementation derived from JAMA
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Hi,
I've modified the JAMA SingularValueDecomposition class to work with
the Mahout SparseMatrix and DenseMatrix, and I'd like to contribute it
to the project if it's wanted.
What's the procedure? Do I create an item on JIRA with a patch attached?
-Allen
Writing out in Harwell-Boeing format is another case where you will
want to have it sorted.
-Allen
On Fri, Aug 8, 2008 at 12:11 AM, Shalin Shekhar Mangar
<[EMAIL PROTECTED]> wrote:
> If there is never a need to keep it in order except for the unit test, then
> yes, I agree with you. In that case,
Here's a relevant snippet:
[junit] Testcase:
testAsFormatString(org.apache.mahout.matrix.TestSparseVector):
FAILED
[junit] format expected:<[s5, [2:2.2, 1:1.1], 3:3.3, ] > but
was:<[s5, [1:1.1, 2:2.2], 3:3.3, ] >
[junit] junit.framework.ComparisonFailure: format expected:<[s5,
[2:2.2,
Hey,
This is still too low. 256m is sufficient for my tests to pass.
I was getting failures with jdk 1.6.0_10-beta on a 64bit system.
-Allen
On Mon, Jun 2, 2008 at 6:18 AM, Sean Owen <[EMAIL PROTECTED]> wrote:
> Yep I saw the same thing. You can either change that settings up your
> maximum he
l <[EMAIL PROTECTED]> wrote:
> Hmm, weird. Can you look at the test reports and see what the errors are?
>
> -Grant
>
> On Jun 21, 2008, at 2:00 AM, Allen Day wrote:
>
>> Hi,
>>
>> I finally had a chance to get mahout checked out and built today. I
&g
Hi,
I finally had a chance to get mahout checked out and built today. I
want to get up to speed so I can start using/contributing.
I can get the "compile" target to build successfully, but I'm getting
errors from the "test" target.
[junit] Test org.apache.mahout.clustering.canopy.TestCanopy
hing?
> Jeff
>
>
> Allen Day wrote:
>>
>> There was an excellent presentation from Rob Fergus on this data set
>> at last year's UCLA/NSF "Mathematics of Search Engines" workshop.
>>
>> https://www.ipam.ucla.edu/schedule.aspx?pc=sews2
>>
>>
There was an excellent presentation from Rob Fergus on this data set
at last year's UCLA/NSF "Mathematics of Search Engines" workshop.
https://www.ipam.ucla.edu/schedule.aspx?pc=sews2
Scroll down to Tuesday 3pm to grab the slides and audio.
-Allen
On Thu, May 22, 2008 at 5:44 PM, Ted Dunning <
Hi,
I'll be trying out Mahout to do some microarray gene expression
clustering pretty soon. I would be happy to do a small write-up.
-Allen
On Mon, Mar 17, 2008 at 7:41 AM, Grant Ingersoll <[EMAIL PROTECTED]> wrote:
> Now that we have some code in place for clustering, I think it would
> be co
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