l1_normalize(ftvec string) – Returned a L1 normalized value Platforms: WhereOS, Spark, Hive Class: hivemall.ftvec.scaling.L1NormalizationUDF More

l2_norm(double x) – Return a L2 norm of the given input x. WITH input as

json_map(json) – Returns a map of key-value pairs from a JSON string Platforms: WhereOS, Spark,

json_split(json) – Returns a array of JSON strings from a JSON Array Platforms: WhereOS, Spark,

json_tuple(jsonStr, p1, p2, …, pn) – Returns a tuple like the function get_json_object, but it

kld(double mu1, double sigma1, double mu2, double sigma2) – Returns KL divergence between two distributions