# Tagged Questions

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### Confusion related to ordinary kriging

I was reading this wiki article related to ordinary kriging where they calculated the weights like this I know that covariance from the covariogram and semivariance from the semivariogram are ...
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### Understanding a paper on Gaussian Processes

I am reading and trying to understand the paper "Gaussian Processes for Signal Strength-Based Location Estimation" by Ferris et al. (A copy of the paper may be accessed here). At the moment I am stuck ...
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### How adding covariance noise in Gaussian processes to prevent overfitting?

I am told, in Gaussian Processes, adding covariance function noise to others, say SEiso or Materns, cause a better result, since it prevents from over fitting. I appreciate if someone could put more ...
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### Problem with singular covariance matrices when doing Gaussian process regression

I'm working with Gaussian process regression. Currently I start testing different covariance functions and compositions to see what type of data they could describe best. I made an own implementation ...
I have a Gaussian process regression implementation and developed some example data to test the capabilities of those methods. In the posterior calculation one gets the covariance matrix $K$. For some ...
Let, $S_{n*n}$ represent a similarity matrix, among $n$ observation, my case n = 215. and $Y=\{y_1, y_2, ...,y_n\}$ contains a response value for each $x_n$ observation. For each observation we have ...