xenocyon

xenocyon has asked 20 questions and find answers to 3 problems.

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xenocyon questions

Create array containing first element of each struct in an array in a Spark dataframe field
Special kind of row-by-row multiplication of 2 sparse matrices in Python
Broadcast Annoy object in Spark (for nearest neighbors)?
Cumulate arrays from earlier rows (PySpark dataframe)
Performing lookup/translation in a Spark RDD or data frame using another RDD/df
Hive query to quickly find table size (number of rows)
Best way to get the max value in a Spark dataframe column

xenocyon answers

Special kind of row-by-row multiplication of 2 sparse matrices in Python
How to find the nearest neighbors of 1 Billion records with Spark?
sample weights in scikit-learn broken in cross validation