[scikit-learn] Recurrent Decision Tree

Dale T Smith Dale.T.Smith at macys.com
Mon Nov 7 08:10:03 EST 2016

Searching the mailing list would be the best way to find out this information.

It may be in the contrib packages on github – have you checked?

Dale T. Smith | Macy's Systems and Technology | IFS eCom CSE Data Science
5985 State Bridge Road, Johns Creek, GA 30097 | dale.t.smith at macys.com

From: scikit-learn [mailto:scikit-learn-bounces+dale.t.smith=macys.com at python.org] On Behalf Of KevNo
Sent: Friday, November 4, 2016 4:44 PM
To: scikit-learn at python.org
Subject: [scikit-learn] Recurrent Decision Tree

Just wondering if Recurrent Decision Tree has been investigated
by Scikit previously.

Main interest is in path dependant (time series data) problems,
the recurrence is often necessary to model the path dependent state.
In other words, wrong prediction will affect the subsequent predictions.

Here, a research paper on Recurrent Decision Tree,
from Walt Disney Research (!)


Any thought is welcome.

scikit-learn-request at python.org<mailto:scikit-learn-request at python.org> wrote:

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Today's Topics:

   1. Re: hierarchical clustering (Gael Varoquaux)

   2. Naive Bayes - Multinomial Naive Bayes tf-idf (Marcin Miro?czuk)

   3. Re: hierarchical clustering (Jaime Lopez Carvajal)

   4. Re: Naive Bayes - Multinomial Naive Bayes tf-idf (Andy)


Message: 1

Date: Fri, 4 Nov 2016 10:36:49 +0100

From: Gael Varoquaux <gael.varoquaux at normalesup.org><mailto:gael.varoquaux at normalesup.org>

To: Scikit-learn user and developer mailing list

        <scikit-learn at python.org><mailto:scikit-learn at python.org>

Subject: Re: [scikit-learn] hierarchical clustering

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AgglomerativeClustering internally calls scikit learn's version of

cut_tree. I would be curious to know whether this is equivalent to

scipy's fcluster.

It differs in that it enable to add connectivity contraints.


Message: 2

Date: Fri, 4 Nov 2016 11:45:39 +0100

From: Marcin Miro?czuk <m.marcinmichal at gmail.com><mailto:m.marcinmichal at gmail.com>

To: scikit-learn at python.org<mailto:scikit-learn at python.org>

Subject: [scikit-learn] Naive Bayes - Multinomial Naive Bayes tf-idf


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In our experiments, we use a Multinomial Naive Bayes (MNB). The traditional

MNB implies the TF weight of the words. We read in documentation

http://scikit-learn.org/stable/modules/naive_bayes.html which describes

Multinomial Naive Bayes that "... where the data are typically represented

as word vector counts, although tf-idf vectors are also known to work well

in practice". The "word vector counts" is a TF and it is well known. We

have a problem which the "tf-idf vectors". In this case, i.e. tf-idf  it

was implemented the approach of the D. M. Rennie et all Tackling the Poor

Assumptions of Naive Bayes Text Classification? In the documentation, there

are not any citation of this solution.


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