Summary: The simplest way of of getting a data.frame to a transaction is by reading it from a csv into R. An alternative is to convert it to a logical matrix and coerce it into a transaction object.
Summary: Before adding a person to your analytical team, it’s important to create templates for reporting, centralize data access, and automating reoccurring reports.
Lately, I’ve written a few iterations of pyspark to develop a recommender system (I’ve had some practice creating recommender systems in pyspark). I ran into a situation where I needed to generate some recommendations on some different datasets. My problem was that I had to decipher some of the prediction documentation. Because of my struggles, […]
Summary: Writing better quality data mining code requires you to write code that is self-explanatory and does one thing at a time well. In terms of analysis, you should be cross-validating and watching for slowly changing relationships in the data.
Summary: XGBoost and ensembles take the Kaggle cake but they’re mainly used for classification tasks. Some tools like factorization machines and vowpal wabbit make occasional appearances.