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dimsum_mapper

dimsum_mapper(array row, map colNorms [, const string options]) – Returns column-wise partial similarities

Platforms: WhereOS, Spark, Hive

Class: hivemall.knn.similarity.DIMSUMMapperUDTF

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.

View the complete guide of WhereOS functions.

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dimsum_mapper

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