Blog Archives

Extending the OpenImageR package with Gabor feature extraction

August 7, 2018
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Extending the OpenImageR package with Gabor feature extraction

This blog post illustrates the new functionality of the OpenImageR package (Gabor Feature Extraction). The Gabor features have been used extensively in image analysis and processing (Character and Face recognition). Gabor (Nobel prize winner,...

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Singularity as a software distribution / deployment tool

July 25, 2018
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In this blog post, I’ll explain how someone can take advantage of Singularity to make R or Python packages available as an image file to users. This is a necessity if the specific R or Python package is difficult to install across different operating systems making that way the installation process cumbersome. Lately, I’ve utilized the reticulate package in...

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Extreme Learning Machine

July 4, 2018
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As of 2018-06-17 the elmNN package was archived and due to the fact that it was one of the machine learning functions that I used when I started learning R (it returns the output results pretty fast too) plus that I had to utilize the package last week for a personal task I decided to reimplement the R code...

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Non Metric Space (Approximate) Library in R

February 26, 2018
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The nmslibR package is a wrapper of NMSLIB, which according to the authors “… is a similarity search library and a toolkit for evaluation of similarity search methods. The goal of the project is to create an effective and comprehensive to...

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Regularized Greedy Forest in R

February 13, 2018
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This blog post is about my newly released RGF package (the blog post consists mainly of the package Vignette). The RGF package is a wrapper of the Regularized Greedy Forest python package, which also includes a Multi-core implementation (Fast...

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Geospatial Queries using Pymongo in R

August 6, 2017
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Geospatial Queries using Pymongo in R

Since I submitted the geojsonR package I was interested in running geospatial MongoDB queries using GeoJson data. I decided to use PyMongo (through the reticulate package) after opening two Github issues here and here. In my opinion, the PyMo...

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Fuzzy string Matching using fuzzywuzzyR and the reticulate package in R

April 12, 2017
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Fuzzy string Matching using fuzzywuzzyR and the reticulate package in R

I recently released an (other one) R package on CRAN - fuzzywuzzyR - which ports the fuzzywuzzy python library in R. “fuzzywuzzy does fuzzy string matching by using the Levenshtein Distance to calculate the differences between sequences (of...

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Processing of GeoJson data in R

March 28, 2017
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Processing of GeoJson data in R

This blog post is about my recently released package on CRAN, geojsonR. The following notes and examples are based mainly on the package Vignette. “GeoJSON is an open standard format designed for representing simple geographical features, ...

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Text Processing using the textTinyR package

January 5, 2017
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Text Processing using the textTinyR package

This blog post is about my recently released package on CRAN, textTinyR. The following notes and examples are based mainly on the package Vignette. The advantage of the textTinyR package lies in its ability to process big text data files in ...

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Clustering using the ClusterR package

September 11, 2016
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Clustering using the ClusterR package

This blog post is about clustering and specifically about my recently released package on CRAN, ClusterR. The following notes and examples are based mainly on the package Vignette. Cluster analysis or clustering is the task of grouping a set...

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