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thecooldata

a blog about data science

Month: August 2018

Matrix decomposition, image compression, and video background removal using R [PART 2]

2018-08-18
By: jlao
On: 18/08/2018

This post is PART-2 of two posts. You can jump to the first part at PART-1,  which has gone through matrix decomposition using Singular Vector Decomposition (SVD), randomized Singular Vector Decomposition (rSVD) and Nonnegative Matrix Factorization (NMF) mainly for image compression.read more →

Matrix decomposition, image compression, and video background removal using R [PART 1]

2018-08-18
By: jlao
On: 18/08/2018

This post is PART-1 of two posts. PART-1 will go through matrix decomposition using Singular Vector Decomposition (SVD), randomized Singular Vector Decomposition (rSVD) and Nonnegative Matrix Factorization (NMF) mainly for image compression. PART-2 will look at video background removal usingread more →

Plotting proportionally sized circles about the frequency of usage of R packages

2018-08-16
By: jlao
On: 16/08/2018

In this first post, I will show you a simple script that performs a R package frequency analysis of my most used R packages. By doing this analysis you will know which are your most used/called R packages of aread more →

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  • data visualization (1)
  • image (2)
  • machine learning (2)
  • matrix decomposition (2)
  • R (5)
  • video (1)

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