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) > * >>>> 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 a) they have been replaced by better performant alternatives 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 >
