/usr/include/InsightToolkit/Numerics/NeuralNetworks/ is in libinsighttoolkit3-dev 3.20.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkBackPropagationLayer.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkBackPropagationLayer.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkBatchSupervisedTrainingFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkBatchSupervisedTrainingFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkCompletelyConnectedWeightSet.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkCompletelyConnectedWeightSet.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkErrorBackPropagationLearningFunctionBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkErrorBackPropagationLearningFunctionBase.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkErrorBackPropagationLearningWithMomentum.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkErrorBackPropagationLearningWithMomentum.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkErrorFunctionBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkGaussianRadialBasisFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkGaussianRadialBasisFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkGaussianTransferFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkGaussianTransferFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkHardLimitTransferFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkHardLimitTransferFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkIdentityTransferFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkIdentityTransferFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkInputFunctionBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkIterativeSupervisedTrainingFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkIterativeSupervisedTrainingFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkLayerBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkLayerBase.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkLearningFunctionBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkLogSigmoidTransferFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkLogSigmoidTransferFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkMeanSquaredErrorFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkMeanSquaredErrorFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkMultilayerNeuralNetworkBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkMultilayerNeuralNetworkBase.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkMultiquadricRadialBasisFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkMultiquadricRadialBasisFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkNNetDistanceMetricBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkNeuralNetworkObject.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkNeuralNetworkObject.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkOneHiddenLayerBackPropagationNeuralNetwork.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkOneHiddenLayerBackPropagationNeuralNetwork.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkProductInputFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkProductInputFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkQuickPropLearningRule.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkQuickPropLearningRule.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkRBFBackPropagationLearningFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkRBFBackPropagationLearningFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkRBFLayer.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkRBFLayer.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkRBFNetwork.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkRBFNetwork.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkRadialBasisFunctionBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkRadialBasisFunctionBase.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSigmoidTransferFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSigmoidTransferFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSignedHardLimitTransferFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSignedHardLimitTransferFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSquaredDifferenceErrorFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSquaredDifferenceErrorFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSumInputFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSumInputFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSymmetricSigmoidTransferFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkSymmetricSigmoidTransferFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkTanHTransferFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkTanHTransferFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkTanSigmoidTransferFunction.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkTanSigmoidTransferFunction.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkTrainingFunctionBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkTrainingFunctionBase.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkTransferFunctionBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkTwoHiddenLayerBackPropagationNeuralNetwork.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkTwoHiddenLayerBackPropagationNeuralNetwork.txx
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkWeightSetBase.h
/usr/include/InsightToolkit/Numerics/NeuralNetworks/itkWeightSetBase.txx