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Jan Motl


46 total contributions since 2013

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Submitted


Stratified cross-validation for multi-label data sets
Greedily assign samples into folds based on their labels

alrededor de 1 mes ago | 0 downloads |

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Submitted


Squared Euclidean distance on heterogeneous data
Element-by-element distance between two tables with a mix of nominal and numerical variables

alrededor de 2 meses ago | 0 downloads |

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Submitted


Distribution-balanced stratified cross-validation
An improvement to stratified cross-validation for small imbalanced data sets.

2 meses ago | 2 downloads |

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Submitted


Stratified matrix sampling
Random matrix sampling, which is stratified by rows and columns

5 meses ago | 1 download |

Submitted


Sequential sign test
A non-parametric test, which terminates, once the results become significant

7 meses ago | 0 downloads |

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Cholesky decomposition
In place matrix factorization

8 meses ago | 20 downloads |

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Laplacian Corrected Modified Naive Bayes
Fast linear classifier for nominal data

12 meses ago | 1 download |

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Average Filter
Average filter performs image smoothing with integral image method.

más de 1 año ago | 27 downloads |

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Magic kernel resizing
The “magic kernel” is a method of resampling images that gives clear results free of artifacts.

casi 2 años ago | 1 download |

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Sobel filter of predefined size
The function returns Sobel filter of predefined size.

casi 2 años ago | 8 downloads |

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Normalized Discounted Cumulative Gain (NDCG)
Returns the Normalized Discounted Cumulative Gain

casi 2 años ago | 2 downloads |

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Network Meta-Analysis
Performs a network meta-analysis

más de 3 años ago | 1 download |

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Get all topological sorting arangements
Generates all topological sorting arangements

más de 3 años ago | 4 downloads |

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Topological sort
Performs topological sort of a directed graph

casi 4 años ago | 4 downloads |

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Bradley local image thresholding
A fast an well performing local image thresholding method.

más de 4 años ago | 11 downloads |

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Rotate an image around a point
Performs rotation of an image around any point inside of the image.

alrededor de 5 años ago | 24 downloads |

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Bernsen local image thresholding
Implementation of Bernsen's thresholding method.

alrededor de 5 años ago | 13 downloads |

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Remove ghosts from binarized images
This method removes speckles in the binarized images.

más de 5 años ago | 6 downloads |

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Nick local image thresholding
Nick's binarization performs local image thresholding.

más de 6 años ago | 2 downloads |

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Wolf local image thresholding
Wolf's binarization performs local image thresholding.

más de 6 años ago | 5 downloads |

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Meanthresh local image thresholding
Meanthresh performs a simple local image thresholding.

más de 6 años ago | 8 downloads |

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Feng local image thresholding
Feng binarization method is well suited for ill illuminated or stained documents.

más de 6 años ago | 3 downloads |

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Standard deviation filter
Standard deviation filter for images based on integral images.

más de 6 años ago | 2 downloads |

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Niblack local thresholding
A traditional local image thresholding.

más de 6 años ago | 13 downloads |

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Sauvola local image thresholding
Sauvola binarization method is well suited for ill illuminated or stained documents.

más de 6 años ago | 18 downloads |

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Straighten image
The function finds the document orientation.

más de 6 años ago | 5 downloads |

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Solved


Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

casi 7 años ago

Solved


Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

casi 7 años ago

Solved


Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

casi 7 años ago

Solved


Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

casi 7 años ago

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