Keeping Up with the Quants

more and better data beat a better algorithm almost every time

One of my favorites is to get better data. Not more data, but data that’s different from what has been used to solve the problem so far. If you have used demographic data, add purchase data. If you have both, add browsing data. If you have numeric data, add text data

Numerical (interval and ratio) variables

“all models are wrong, but some are useful.”

weather and macroeconomic data.

the extensive use of data, statistical and quantitative analysis, explanatory and predictive models, and fact-based management to drive decisions and add value.