Elena JolkverinTowards Data ScienceAn intuition for AUC and Harrell’s CA graphical approach6 min read·Sep 15, 2023----
Elena JolkverinTowards Data ScienceBuilding classifiers with biased classes: AdaSampling comes to the rescueAn algorithmic approach to clean up your dataset and sharpen class assignments.5 min read·Jul 20, 2022----
Elena JolkverinTowards Data ScienceA tangible variant of the F value for classification evaluationJustify your model selection comprehensibly3 min read·Mar 18, 2021----
Elena JolkverOn reading books, real books, slowly. Or why Martin Eden is worth a hundred coaching books.Whenever I read yet another post where someone shares his records on reading 1–2–5 books a week I always wonder “Why?”. Other than for…5 min read·Feb 17, 2021----
Elena JolkverinTowards Data ScienceR’s Hierarchical Clustering Illustration — a piece of cake!A common question in cluster analysis is: “Now what?”. You have plenty of methods to bring some order into your data chaos, without the…3 min read·Jan 28, 2021----
Elena JolkverinTowards Data ScienceApriori Analysis in R beyond sellsThe apriori algorithm is frequently used in the so_called “basket_analysis” to determine whether a given item is bought more frequently in…8 min read·Jan 13, 2021----