InThe Learning RatebyNidhin·3d agoDon’t delete your outliers yet. In fraud, they’re the whole point.How to tell an error from a rare truth before you clean your data
InData Science CollectivebyEva Giannatou·5d agoStructural breaks: catching the moment the rules changeWhat a 10,000-series real-time challenge taught me about detecting regime changes as they happen.A response icon2A response icon2
Phillip Wenig·6d agoSystem One Time Series ModelsAsk your time series questions, get calibrated answers.A response icon1A response icon1
Maximilian von Liechtenstein·6d agoUncovering Structure Where None Should Exist Across Three Landmark Bell TestsI audited the raw records behind three landmark Bell tests. Surprisingly, every landmark test revealed a small but curious statistical…
InJavaScript in Plain EnglishbyAbduldattijo·Oct 29Red Dots Are Not Alerts: How I Tested a Finance Anomaly DetectorA practical way to measure false alarms, missed events, and the cost of a threshold
Michalzarnecki·Oct 28From Customer Segments to Reliable Anomalies: K-Means, PCA, Missing Data, and DBSCAN — Machine…In the previous part, we transformed raw Online Retail order lines into a table in which one row represents one customer. This is already a…
Iris N.T.·Oct 28How Can Machine Learning Detect Anomalies in Autonomous and Resilient Lunar Habitats?A Moon Base Cannot Wait for Mission ControlA response icon1A response icon1
Sam Heiserman·Oct 27Rules, stats, machine learning or a foundation model? Warning of grid blackoutsFive methods on GridShedWatch: none wins outright, and each catches a different kind of emergency.
InCisco® ThousandEyes® EngineeringbyCisco ThousandEyes Engineering·Oct 27Detecting Network Anomalies Across Multiple SignalsBy Arshmehar Kaur, Engineering Intern in Summer 2026 at Cisco ThousandEyes
Sam Heiserman·Oct 26Grid emergency warnings don’t have a scorecard. So I built one.Since 2020, US grid operators have had to cut power for lack of supply eight times. The public was warned beforehand in four of them, and…A response icon1A response icon1
