When Zaharia started work on Spark around 2010, analyzing "big data" generally meant using MapReduce, the Java-based ...

Allison Schrager is a senior fellow at the Manhattan Institute, a contributing editor of City Journal, and a Bloomberg Opinion columnist. Her work focuses on economics including public finance, ...

Marketers assume that the more choices they offer, the more likely customers will be able to find just the right thing. They assume, for instance, that offering 50 styles of jeans instead of two ...