Re: [Scikit-learn-general] K Nearest Neighbour with 3d array and custom distance metric

Thanks Fred and all. Appreciate the help. On Fri Jan 10 2014 at 1:26:13 PM, Fred Mailhot wrote: There are a few implementations of DTW in Cython floating around...I think mblondel has one. Maybe you could tweak one of these and see whether it yields a useful speed-up? https://github.com/SnippyH

Re: [Scikit-learn-general] K Nearest Neighbour with 3d array and custom distance metric

There are a few implementations of DTW in Cython floating around...I think mblondel has one. Maybe you could tweak one of these and see whether it yields a useful speed-up? https://github.com/SnippyHolloW/DTW_Cython http://www.mblondel.org/journal/2009/08/31/dynamic-time-warping-theory/ https://gi

Re: [Scikit-learn-general] K Nearest Neighbour with 3d array and custom distance metric

Am I correct to assume the only algorithm that will work with a custom distance metric is "brute"? DWT with 1NN is performing pretty slow with just 10,000 observations. New to Python, perhaps I could write the distance metric function more efficiently? # Define function to compute dynamic time wa

Re: [Scikit-learn-general] Theil-Sen estimator for a multiple linear regression problem

Hi, There have been some implementations of Theil-Sen floating around for inclusion in statsmodels, but no PRs yet. IMO it might fit in a little better in statsmodels.robust than sklearn unless their are some aspects of Theil-Sen I'm not familiar with. Skipper Sent from my mobile > On Jan 10

Re: [Scikit-learn-general] K Nearest Neighbour with 3d array and custom distance metric

Fully agreed with Lars. On Fri, Jan 10, 2014 at 02:44:40PM +0100, Lars Buitinck wrote: > 2014/1/10 Robert Layton : > > I wonder if that check could be removed -- as long as the input is > > fancy-indexable, the code should otherwise not have an issue (until it hits > > the distance metric, in whic

Re: [Scikit-learn-general] K Nearest Neighbour with 3d array and custom distance metric

Thanks Joel! Great suggestion. This is now working for my use case. On Fri Jan 10 2014 at 5:46:17 AM, Lars Buitinck wrote: > 2014/1/10 Robert Layton : > > I wonder if that check could be removed -- as long as the input is > > fancy-indexable, the code should otherwise not have an issue (until it

[Scikit-learn-general] Theil-Sen estimator for a multiple linear regression problem

Hi, I'd like to add a Theil-Sen estimator for a multiple linear regression problem to Scikit-Learn as described in the paper: http://home.olemiss.edu/~xdang/papers/MTSE.pdf Is anyone already working on this or are there any objections regarding the inclusion of a Theil-Sen estimator into Scikit-Le

Re: [Scikit-learn-general] K Nearest Neighbour with 3d array and custom distance metric

2014/1/10 Robert Layton : > I wonder if that check could be removed -- as long as the input is > fancy-indexable, the code should otherwise not have an issue (until it hits > the distance metric, in which case you have that covered). -1. Since high-d data is usually a mistake and NumPy offers easy