I have dataset with 300000 voxel and i want to apply knnsearch on it but it is working very slow...

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vivek parekh on 6 Dec 2017

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Answered: Image Analyst on 6 Dec 2017

Is there any trick to make it very fast?

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Image Analyst on 6 Dec 2017

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Use fewer observations and/or fewer training points. But 300,000 observations doesn't seem that many. How many training points do you have?

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