MapReduce Based Parallel Neural Networks in Enabling Large Scale Machine Learning

Algorithm 2

MRBPNN_2.

Input: ,  Output:

mappers one reducer

(1) Each mapper constructs one BPNN with inputs, outputs, neurons in hidden layer

(2) Initialize

(3) Bootstrap ,

(4) Each mapper inputs ,

 Input , in hidden layer computes

(5) Input , in output layer computes

(6) In each output, compute

(7) In hidden layer, compute

(8) Update

Repeat (3), (4), (5), (6), (7)

Until

Training terminates

(9) Each mapper inputs ,

(10)Execute (4), (5)

(11) Mapper outputs

(12) Reducer collects ,

(13) For each

  Compute

Repeat (9), (10), (11), (12), (13)

Until is traversed.

(14) Reducer outputs

End