PinnedPeijin CheninTowards Data ScienceHuman Activity Classification on the selfBACK Data Set with pycaret and kerasThe SELFBACK dataset contains wearable data of 9 activity classes; 6 ambulatory activities and 3 sedentary activities, performed by 33…·7 min read·Dec 1, 2020----
PinnedPeijin CheninArtificial Intelligence in Plain EnglishMachine Learning Mini-Project 3: Predicting 1-Hour ahead PM2.5 Levels in BeijingINTRODUCTION·8 min read·Oct 22, 2020--1--1
Peijin ChenDeep Learning For Time Series: Some ResourcesI haven’t written anything here in so long, it seemed too daunting to get back into something technical. Instead, I will state a problem…·3 min read·Aug 3, 2023----
Peijin Chentsai — State of the Art Machine Learning for Time Series, Part 1.There are more cool time series libraries for Python than you can shake a stick at. You might have heard of some of them:·4 min read·Jul 15, 2021--1--1
Peijin ChenThe Dating Problem, Revisited.How many dates should you go on before you settle down?·4 min read·Feb 25, 2021----
Peijin ChenMachine Learning Mini-Project: Predicting Stock Closing Prices from Intraday Stock Prices on the…ROCKET vs. Time Series Forest vs. Temporal Convolutional Networks vs. XGBoost·6 min read·Feb 5, 2021----
Peijin ChenThe Poisson Deviance for RegressionYou’ve probably heard of the Poisson distribution, a probability distribution often used for modeling counts, that is, positive integer…·5 min read·Jan 22, 2021--1--1
Peijin CheninTowards Data ScienceMachine Learning Mini-ProjectPoisson Regression on the Seoul Bike Sharing Dataset with pycaret and keras·8 min read·Jan 5, 2021----
Peijin CheninTowards Data ScienceMachine Learning Mini-Project 4: Finding Important Features using Genetic Algorithms (for Heart…The original paper is as follows:·9 min read·Nov 5, 2020--1--1
Peijin CheninArtificial Intelligence in Plain EnglishI wasted over 6 months on a machine learning project because of this stupid error…Well, it wasn’t a complete waste, you live and learn. But I spent a lot of time on the project and wanted to write it up as an academic…·6 min read·Oct 14, 2020----