On Friday, January 3, 2014 4:26 PM, Dmitriy Lyubimov <[email protected]> wrote:
On Fri, Jan 3, 2014 at 1:15 PM, Suneel Marthi <[email protected]>wrote:
> See inline. The code for the deprecated algos has already been purged from
> trunk, its only the Wiki that needs cleaning up.
>
>
>
>
> On Friday, January 3, 2014 4:03 PM, "[email protected]" <[email protected]>
> wrote:
>
> Please confirm if below list is correct before removing them:
>
> Classification
> Deprecated or drafts only:
> * Support Vector Machines(see MAHOUT-14, MAHOUT-232and MAHOUT-334
>
> * >>>> Never made it into the codebase and should not be on
> Wiki, please remove all references to this from Wiki
> * Perceptron and Winnow(see MAHOUT-85)
> * >>>> This has been removed from codebase for 0.9 due to lack of
> usage and all references should be removed from Wiki
>
> * Neural Network (see MAHOUT-228)
> * >>>> NEver made it to the codebase and all references should be
> removed from Wiki
>
> * Restricted Boltzmann Machines(see MAHOUT-375)
> * >>>> Never made it to codebase and all references should be
> removed from Wiki
>
> * Online Passive Aggressive (see MAHOUT-702
> * Boosting (see MAHOUT-716)
> * >>>> Same reasons as the previous ones, all references need to
> be removed from the Wiki
>
> Clustering
> Deprecated or drafts only:
> * Hierarchical Clustering (MAHOUT-19, MAHOUT-843)
>
> * Spectral Clustering (MAHOUT-363)
> * >>>> This should be retained, Shannon will be updating the Wiki
> for this later.
>
> Dimension reduction
> Deprecated or drafts only:
> * Principal Components Analysis (PCA)
>
PCA should probably be rewritten to point to SSVD with PCA options (SSVD
solver includes end2end PCA functionality)
> If the Wiki for SSVD already covers SSVD with PCA options, may be it may make
> sense to purge the older PCA only wiki page.
> * >>>> We still have this and its widely used, retain this.
>
> * Gaussian Discriminative Analysis (GDA)
> * >>>> Retain this.
>
> Other
> Deprecated or drafts only:
> * Pattern mining: Parallel FP Growth Algorithm(Also known as
> Frequent Itemset mining)
> * >>> Code for this has been removed from 0.9, all references to
> this should be removed from Wiki
>
On not directly related plane, could somebody do me a favor and tell why FP
Growth was removed? Efficiency issues? Lack of maintenance? thanks.
>
>
>
>
> From:Suneel Marthi [mailto:[email protected]]
> Sent: Friday, January 03, 2014 10:48 PM
> To: [email protected]; [email protected]
> Subject: Re: Deprecated or drafts only algorithms what is the reasoning?
>
> It could be because:-
>
> a) they have been replaced by better performant alternatives
> b) lack of usage
> c) lack of support
>
> Please delete from wiki all algorithms that have been marked deprecated
> (the code for most of them has already been removed from trunk).
>
>
> On Friday, January 3, 2014 3:31 PM, "[email protected]" <[email protected]>
> wrote:
> Hi all,
>
>
>
> I'm going through the algorithms and I noticed some are "Deprecated or
> drafts only" . What is the reason?
>
>
>
> Is it because they are less efficient compared to the supported ones or is
> it due to lack of resources working on them to be supported with Mahout?
>
>
>
> Thanks
>
> Sotiris
>
