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Jan Motl


Last seen: 3 Monate ago
47 total contributions since 2013

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Submitted


LDL matrix factorization
Decomposition of a matrix into lower triangular matrix L and diagonal matrix D

6 Monate ago | 5 downloads |

Submitted


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

12 Monate ago | 4 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

etwa ein Jahr ago | 1 download |

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Submitted


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

etwa ein Jahr ago | 6 downloads |

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Submitted


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

mehr als ein Jahr ago | 1 download |

Submitted


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

mehr als ein Jahr ago | 2 downloads |

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Submitted


Cholesky decomposition
In place matrix factorization

mehr als ein Jahr ago | 31 downloads |

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Submitted


Laplacian Corrected Modified Naive Bayes
Fast linear classifier for nominal data

fast 2 Jahre ago | 1 download |

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Submitted


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

mehr als 2 Jahre ago | 7 downloads |

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Submitted


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

mehr als 2 Jahre ago | 1 download |

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Submitted


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

mehr als 2 Jahre ago | 4 downloads |

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Submitted


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

fast 3 Jahre ago | 1 download |

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Submitted


Network Meta-Analysis
Performs a network meta-analysis

mehr als 4 Jahre ago | 2 downloads |

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Submitted


Get all topological sorting arangements
Generates all topological sorting arangements

mehr als 4 Jahre ago | 2 downloads |

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Submitted


Topological sort
Performs topological sort of a directed graph

mehr als 4 Jahre ago | 2 downloads |

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Submitted


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

mehr als 5 Jahre ago | 8 downloads |

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Submitted


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

fast 6 Jahre ago | 25 downloads |

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Submitted


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

fast 6 Jahre ago | 9 downloads |

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Submitted


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

mehr als 6 Jahre ago | 3 downloads |

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Submitted


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

mehr als 7 Jahre ago | 2 downloads |

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Submitted


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

mehr als 7 Jahre ago | 3 downloads |

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Submitted


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

mehr als 7 Jahre ago | 2 downloads |

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Submitted


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

mehr als 7 Jahre ago | 2 downloads |

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Submitted


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

mehr als 7 Jahre ago | 1 download |

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Submitted


Niblack local thresholding
A traditional local image thresholding.

mehr als 7 Jahre ago | 8 downloads |

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Submitted


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

mehr als 7 Jahre ago | 10 downloads |

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Submitted


Straighten image
The function finds the document orientation.

mehr als 7 Jahre ago | 6 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...

mehr als 7 Jahre 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]

mehr als 7 Jahre 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.

mehr als 7 Jahre ago

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