00001 /* 00002 * This program is free software; you can redistribute it and/or modify 00003 * it under the terms of the GNU General Public License as published by 00004 * the Free Software Foundation; either version 3 of the License, or 00005 * (at your option) any later version. 00006 * 00007 * Written (W) 2011 Sergey Lisitsyn 00008 * Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society 00009 */ 00010 00011 #ifndef KERNELLOCALLYLINEAREMBEDDING_H_ 00012 #define KERNELLOCALLYLINEAREMBEDDING_H_ 00013 #include <shogun/lib/config.h> 00014 #ifdef HAVE_LAPACK 00015 #include <shogun/converter/LocallyLinearEmbedding.h> 00016 #include <shogun/features/Features.h> 00017 #include <shogun/distance/Distance.h> 00018 #include <shogun/kernel/Kernel.h> 00019 00020 namespace shogun 00021 { 00022 00023 class CFeatures; 00024 class CKernel; 00025 00042 class CKernelLocallyLinearEmbedding: public CLocallyLinearEmbedding 00043 { 00044 public: 00045 00047 CKernelLocallyLinearEmbedding(); 00048 00052 CKernelLocallyLinearEmbedding(CKernel* kernel); 00053 00055 virtual ~CKernelLocallyLinearEmbedding(); 00056 00058 virtual CFeatures* apply(CFeatures* features); 00059 00063 CSimpleFeatures<float64_t>* embed_kernel(CKernel* kernel); 00064 00066 virtual const char* get_name() const; 00067 00069 protected: 00070 00072 virtual SGMatrix<float64_t> construct_weight_matrix(SGMatrix<float64_t> kernel_matrix, 00073 SGMatrix<int32_t> neighborhood_matrix); 00074 00081 virtual SGMatrix<int32_t> get_neighborhood_matrix(SGMatrix<float64_t> kernel_matrix, int32_t k); 00082 00083 00085 protected: 00086 00090 static void* run_neighborhood_thread(void* p); 00091 00095 static void* run_linearreconstruction_thread(void* p); 00096 00097 }; 00098 } 00099 00100 #endif /* HAVE_LAPACK */ 00101 #endif /* KERNELLOCALLYLINEAREMBEDDING_H_ */
