The approach used by the demo is to encode each categorical value on the fly. An alternative, which is more efficient but slightly more complicated, is to precompute all possible categorical values, ...

What are the numbers? You can encode 9,999,999,999 in 5 bytes. If you want to store the number in human readable bytes, convert it to Base64 encoding or similar.

Java 8 will be remembered mainly for introducing lambdas, streams, a new date/time model, and the Nashorn JavaScript engine to Java. Some will also remember Java 8 for introducing various small but ...

If you have young kids, you'll relate to the value of being able to speak in code. For a few years, I was able to use Pig Latin to speak covertly around my kids. It was handy, and surprisingly ...