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From "Uwe Schindler" <...@thetaphi.de>
Subject RE: Dimension mismatch exception
Date Thu, 20 Mar 2014 23:13:52 GMT
Hi Stefy,

the stack trace you posted has nothing to do with Apache Lucene. It looks like you are using
some commons-lang3 classes here, but no Lucene code at all. So I think your question might
be better asked on the commons-math mailing list, unless you have some Lucene code around,
too. If this is the case, you should give more information how you use Lucene.

Uwe

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: uwe@thetaphi.de


> -----Original Message-----
> From: Stefy D. [mailto:tsuki_stefy@yahoo.com]
> Sent: Thursday, March 20, 2014 10:05 PM
> To: java-user@lucene.apache.org
> Subject: Dimension mismatch exception
> 
> Dear all,
> 
> I am trying to compute the cosine similarity between several documents. I
> have an indexed directory A made using 10000 files and another indexed
> directory B made using 20000 files. All the indexed documents from both
> directories have the same length (100 sentences). I want to get the cosine
> similarity between documents from directory A and documents from
> directory B. I have used the code from here but on the two indexed
> directories. So I use something like getCosineSimilarity(docs_A[i], docs_B[j]);
> 
> I get the following error:
> Exception in thread "main"
> org.apache.commons.math3.exception.DimensionMismatchException:
> 44,375 != 596,263
>     at
> org.apache.commons.math3.linear.RealVector.checkVectorDimensions(Real
> Vector.java:179)
>     at
> org.apache.commons.math3.linear.RealVector.checkVectorDimensions(Real
> Vector.java:165)
>     at
> org.apache.commons.math3.linear.RealVector.dotProduct(RealVector.java:3
> 07)
>     at NewApp.testCosine.getCosineSimilarity(testCosine.java:57)
> 
> Please help me. Thank you very much!


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