Statistics

The Machine Learning “Advent Calendar” Day 8: Isolation Forest in Excel

with Decision Trees, each for Regression and Classification, we are going to proceed to make use of the principle of Decision Trees today. And this time, we're in unsupervised learning, so there aren't any...

The Greedy Boruta Algorithm: Faster Feature Selection Without Sacrificing Recall

Feature selection stays one of the vital critical yet computationally expensive steps within the machine learning pipeline. When working with high-dimensional datasets, identifying which features truly contribute to predictive power can mean the difference...

Metric Deception: When Your Best KPIs Hide Your Worst Failures

of Green Dashboards Metrics bring order to chaos, or not less than, that’s what we assume. They summarise multi-dimensional behaviour into consumable signals, clicks into conversions, latency into availability and impressions into ROI. Nonetheless,...

Expected Value Evaluation in AI Product Management

under uncertainty is a central concern for product teams. Decisions large and small often must be made under time pressure, despite incomplete — and potentially inaccurate — information concerning the problem and solution...

Evaluating Synthetic Data — The Million Dollar Query

synthetic data generation, we typically create a model for our real (or ‘observed’) data, after which use this model to generate synthetic data. This observed data is often compiled from real world experiences,...

The Pearson Correlation Coefficient, Explained Simply

construct a regression model, which implies fitting a straight line on the information to predict future values, we first visualize our data to get an idea of the way it looks and to...

Using NumPy to Analyze My Each day Habits (Sleep, Screen Time & Mood)

a small NumPy project series where I try to truly with NumPy as an alternative of just going through random functions and documentation. I’ve all the time felt that the most effective...

Constructing a Monitoring System That Actually Works

and managing products, it’s crucial to make sure they’re performing as expected and that the whole lot is running easily. We typically depend on metrics to gauge the health of our products. And...

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