Allen AkinWriting on mathematics, technology, building, and life.https://allenkunle.me/The Spreadsheet Is Already a Producthttps://allenkunle.me/the-spreadsheet-is-already-a-product/https://allenkunle.me/the-spreadsheet-is-already-a-product/A sample essay about finding the real product hiding inside a team's operational spreadsheet.Tue, 22 Sep 2026 00:00:00 GMTSampleProductThe Value of Paying Attentionhttps://allenkunle.me/the-value-of-paying-attention/https://allenkunle.me/the-value-of-paying-attention/A sample personal essay about attention, observation, and making room for what usually passes unnoticed.Fri, 18 Sep 2026 00:00:00 GMTSampleAttentionWhat I Mean by Useful AIhttps://allenkunle.me/what-i-mean-by-useful-ai/https://allenkunle.me/what-i-mean-by-useful-ai/A sample note on designing AI around accountable decisions rather than impressive demonstrations.Mon, 14 Sep 2026 00:00:00 GMTSampleAIBuilding in Chaptershttps://allenkunle.me/building-in-chapters/https://allenkunle.me/building-in-chapters/A sample reflection on careers, companies, and allowing the next chapter to revise the last one.Thu, 10 Sep 2026 00:00:00 GMTSampleBuildingSoftware for the Work Between Systemshttps://allenkunle.me/software-for-the-work-between-systems/https://allenkunle.me/software-for-the-work-between-systems/A sample field note about the handoffs, reconciliations, and exceptions where operational products earn trust.Thu, 03 Sep 2026 00:00:00 GMTSampleOperationsWhat I Keep on the Deskhttps://allenkunle.me/what-i-keep-on-the-desk/https://allenkunle.me/what-i-keep-on-the-desk/A sample notebook entry about the objects, sounds, and small rituals that surround creative work.Fri, 28 Aug 2026 00:00:00 GMTSampleNotebookThe Bias-Variance Decomposition Demystifiedhttps://allenkunle.me/bias-variance-decomposition/https://allenkunle.me/bias-variance-decomposition/This post provides an intuitive explanation of the bias-variance decomposition. The bias-variance decomposition shows the generalisation error of a learning algorithm as the sum of three terms - bias, variance, and the irreducible error.Sat, 07 Nov 2020 00:00:00 GMTMachine-LearningStatisticsDeriving Machine Learning Cost Functions using Maximum Likelihood Estimation (MLE) - Part IIhttps://allenkunle.me/deriving-ml-cost-functions-part2/https://allenkunle.me/deriving-ml-cost-functions-part2/Cross-Entropy Loss - a commonly used cost function for binary classification problems derived using Maximum Likelihood Estimation (MLE)Sun, 31 Mar 2019 00:00:00 GMTMachine-LearningDeriving Machine Learning Cost Functions using Maximum Likelihood Estimation (MLE) - Part Ihttps://allenkunle.me/deriving-ml-cost-functions-part1/https://allenkunle.me/deriving-ml-cost-functions-part1/Mean Squared Error (MSE) - a commonly used cost function for regression problems derived using Maximum Likelihood Estimation (MLE)Sun, 24 Mar 2019 00:00:00 GMTMachine-Learningdplyr-style Data Manipulation with Pipes in Pythonhttps://allenkunle.me/dplyr-style-data-manipulation-in-python/https://allenkunle.me/dplyr-style-data-manipulation-in-python/Tutorial on how to write chainable data manipulation code in Python.Wed, 03 Jan 2018 00:00:00 GMTPythonpandasdplyrData-WranglingExploratory Analysis of the Washington's Post Police Shooting dataset using R and Plotlyhttps://allenkunle.me/exploratory-analysis-police-shooting/https://allenkunle.me/exploratory-analysis-police-shooting/Using R packages to perform exploratory data analysis on Police shooting dataset recorded in the United States.Thu, 14 Jul 2016 00:00:00 GMTRPlotly