argmin_kld(float mean, float covar) – Returns mean or covar that minimize a KL-distance among distributions
The returned value is (1.0 / (sum(1.0 / covar))) * (sum(mean / covar)
Platforms: WhereOS, Spark, Hive
More functions can be added to WhereOS via Python or R bindings or as Java & Scala UDF (user-defined function), UDAF (user-defined aggregation function) and UDTF (user-defined table generating function) extensions. Custom libraries can be added on via Settings-page or installed from WhereOS Store.