Matteo Niccoli

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icon company MyCarta icon location Canada icon location Data driven geoscientist

Results 41 comments of Matteo Niccoli

Reconfirming the evaluation metric

@thanish: I do not know R, but perhaps this? https://github.com/Azure/Azure-MachineLearning-DataScience/blob/master/Utilities/R/MultiClassEvaluation/multi_class_measure.R

Predefined "blind" well data as measure of performance leads to over-fitting.

Hi Matt, Brendon I am just starting today on the contest. I am trying to catch up on this issue, so to be sure I understand: we are to use...

Problem with formatting of output from `to_las`

@Kent, I have 0.23 installed: ![image](https://user-images.githubusercontent.com/7424763/53344857-e520dd00-38d0-11e9-853e-ad0e54c7bb13.png)

Binary striplog

@rgmyr: brilliant!!

Question: is there a fast method for `dcor.independence.distance_covariance_test`

I am at capacity until the fall. After the summer, if as I hope I will have more time, I can give it a try. For the purposes of my...

Affine transformation

Question since you are looking at affine transformations: are you just looking at an option for on-the-fly plotting of a rotated time-slice or actually transforming and storing the slice? For...

Create a polygon of the real data extents of for 3D surveys

This is a possible way with scikit-image, using a time slice: 1) convert to a binary image with appropriate threshold so that no-data is background and data is foreground 2)...

Create a polygon of the real data extents of for 3D surveys

@djchild: seismic surveys are concave, have you manage to make the convex hull work with them? I'd be curious, I have been looking for something like that for some time....

Create a polygon of the real data extents of for 3D surveys

So cool that the Wikipedia link has pseudocode. But, do we NOT want concavities in this case?

Create a polygon of the real data extents of for 3D surveys

If the amplitude value for the background (null traces, holes) is known, I would go back again to suggest a scikit-image workflow. Let's say the value is zero; then a...