mahout-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Anbarasan Murthy <>
Subject Logistic Regression - Questions
Date Thu, 21 Feb 2013 10:49:46 GMT
I am trying to understand the logistic regression implemented in mahout In "org.apache.mahout.classifier.sgd.AbstractOnlineLogisticRegression"

What is the role of "Protected Matrix beta"   < (numCategories-1) x numFeatures >

How & where this "beta" matrix is updated and

How & where the local minimum is computed?

Y = Beta * X



The contents of this e-mail and any attachment(s) are confidential and intended for the named
recipient(s) only.
E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted,
lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e
mail and its contents
(with or without referred errors) shall therefore not attach any liability on the originator
or HCL or its affiliates.
Views or opinions, if any, presented in this email are solely those of the author and may
not necessarily reflect the
views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying,
disclosure, modification,
distribution and / or publication of this message without the prior written consent of authorized
representative of
HCL is strictly prohibited. If you have received this email in error please delete it and
notify the sender immediately.
Before opening any email and/or attachments, please check them for viruses and other defects.


  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message