java.lang.NullPointerException

neuroph | elisacarli | 4 years ago
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  1. 0

    Null pointer exception on iteration

    neuroph | 4 years ago | elisacarli
    java.lang.NullPointerException
  2. 0

    Error NullPointer Neuroph doOneLearningIteration

    Stack Overflow | 7 months ago | chickensoup
    java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.neuroph.nnet.learning.MomentumBackpropagation.updateNeuronWeights()
    2. org.neuroph.nnet
      BackPropagation.updateNetworkWeights
      1. org.neuroph.nnet.learning.MomentumBackpropagation.updateNeuronWeights(MomentumBackpropagation.java:71)
      2. org.neuroph.nnet.learning.SigmoidDeltaRule.calculateErrorAndUpdateOutputNeurons(SigmoidDeltaRule.java:84)
      3. org.neuroph.nnet.learning.BackPropagation.updateNetworkWeights(BackPropagation.java:56)
      3 frames
    3. org.neuroph.core
      IterativeLearning.doOneLearningIteration
      1. org.neuroph.core.learning.SupervisedLearning.learnPattern(SupervisedLearning.java:175)
      2. org.neuroph.core.learning.SupervisedLearning.doLearningEpoch(SupervisedLearning.java:148)
      3. org.neuroph.core.learning.IterativeLearning.doOneLearningIteration(IterativeLearning.java:205)
      3 frames