/usr/include/shark/Models/ is in libshark-dev 3.0.1+ds1-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/shark/Models/AbstractModel.h
/usr/include/shark/Models/Autoencoder.h
/usr/include/shark/Models/CMAC.h
/usr/include/shark/Models/Clustering/
/usr/include/shark/Models/Clustering/AbstractClustering.h
/usr/include/shark/Models/Clustering/Centroids.h
/usr/include/shark/Models/Clustering/ClusteringModel.h
/usr/include/shark/Models/Clustering/HardClusteringModel.h
/usr/include/shark/Models/Clustering/HierarchicalClustering.h
/usr/include/shark/Models/Clustering/SoftClusteringModel.h
/usr/include/shark/Models/ConcatenatedModel.h
/usr/include/shark/Models/Converter.h
/usr/include/shark/Models/ConvexCombination.h
/usr/include/shark/Models/FFNet.h
/usr/include/shark/Models/GaussianNoiseModel.h
/usr/include/shark/Models/Impl/
/usr/include/shark/Models/Impl/Neurons.h
/usr/include/shark/Models/ImpulseNoiseModel.h
/usr/include/shark/Models/Kernels/
/usr/include/shark/Models/Kernels/AbstractKernelFunction.h
/usr/include/shark/Models/Kernels/AbstractMetric.h
/usr/include/shark/Models/Kernels/ArdKernel.h
/usr/include/shark/Models/Kernels/CSvmDerivative.h
/usr/include/shark/Models/Kernels/DiscreteKernel.h
/usr/include/shark/Models/Kernels/EvalSkipMissingFeatures.h
/usr/include/shark/Models/Kernels/GaussianRbfKernel.h
/usr/include/shark/Models/Kernels/Impl/
/usr/include/shark/Models/Kernels/Impl/MklKernelBase.h
/usr/include/shark/Models/Kernels/KernelExpansion.h
/usr/include/shark/Models/Kernels/KernelHelpers.h
/usr/include/shark/Models/Kernels/LinearKernel.h
/usr/include/shark/Models/Kernels/MissingFeaturesKernelExpansion.h
/usr/include/shark/Models/Kernels/MklKernel.h
/usr/include/shark/Models/Kernels/ModelKernel.h
/usr/include/shark/Models/Kernels/MonomialKernel.h
/usr/include/shark/Models/Kernels/MultiTaskKernel.h
/usr/include/shark/Models/Kernels/NormalizedKernel.h
/usr/include/shark/Models/Kernels/PolynomialKernel.h
/usr/include/shark/Models/Kernels/ProductKernel.h
/usr/include/shark/Models/Kernels/ScaledKernel.h
/usr/include/shark/Models/Kernels/SubrangeKernel.h
/usr/include/shark/Models/Kernels/WeightedSumKernel.h
/usr/include/shark/Models/LinearClassifier.h
/usr/include/shark/Models/LinearModel.h
/usr/include/shark/Models/LinearNorm.h
/usr/include/shark/Models/MeanModel.h
/usr/include/shark/Models/NBClassifier.h
/usr/include/shark/Models/NearestNeighborClassifier.h
/usr/include/shark/Models/NearestNeighborRegression.h
/usr/include/shark/Models/Neurons.h
/usr/include/shark/Models/Normalizer.h
/usr/include/shark/Models/OneVersusOneClassifier.h
/usr/include/shark/Models/OnlineRNNet.h
/usr/include/shark/Models/RBFLayer.h
/usr/include/shark/Models/RNNet.h
/usr/include/shark/Models/RecurrentStructure.h
/usr/include/shark/Models/SigmoidModel.h
/usr/include/shark/Models/SoftNearestNeighborClassifier.h
/usr/include/shark/Models/Softmax.h
/usr/include/shark/Models/TiedAutoencoder.h
/usr/include/shark/Models/Trees/
/usr/include/shark/Models/Trees/BinaryTree.h
/usr/include/shark/Models/Trees/CARTClassifier.h
/usr/include/shark/Models/Trees/KDTree.h
/usr/include/shark/Models/Trees/KHCTree.h
/usr/include/shark/Models/Trees/LCTree.h
/usr/include/shark/Models/Trees/RFClassifier.h