On Tue, Aug 28, 2012 at 9:48 AM, dexter morgan <dextermorgan4u@gmail.com>wrote:
>
> I understand your solution ( i think) , didn't think of that, in that
> particular way.
> I think that lets say i have 1M datapoints, and running knn , that the
> k=1M and n=10 (each point is a cluster that requires up to 10 points)
> is an overkill.
>
I am not sure I understand you. n = number of points. k = number of
clusters. For searching 1 million points, I would recommend thousands of
clusters.
> How can i achieve the same result WITHOUT using mahout, just running on
> the dataset , i even think it'll be in the same complexity (o(n^2))
>
Running with a good knn package will give you roughly O(n log n)
complexity.
