jtitusj

jtitusj has asked 3 questions and find answers to 27 problems.

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jtitusj questions

Python: Adding Float formatted time to datetime value
Streaming two line graphs using bokeh
map vs mapValues in Spark

jtitusj answers

Pandas conditional multiplication
Nonnegative Matrix Factorization: The Alternating Least Squares Method
Fast non-negative matrix factorization on large sparse matrix
How to create image from numpy float32 array?
list comprehension in pandas
How to compute the distance matrix in spark?
how to make RMSE(root mean square error) small when use ALS of spark?
parallel processing in pandas python
Spark: FlatMapValues query
Probability density function numpy histogram/scipy stats