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Diffstat (limited to 'media/sphinxbase/sphinxbase/matrix.h')
| -rw-r--r-- | media/sphinxbase/sphinxbase/matrix.h | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/media/sphinxbase/sphinxbase/matrix.h b/media/sphinxbase/sphinxbase/matrix.h deleted file mode 100644 index b7c92e073..000000000 --- a/media/sphinxbase/sphinxbase/matrix.h +++ /dev/null @@ -1,210 +0,0 @@ -/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */ -/* ==================================================================== - * Copyright (c) 1997-2000 Carnegie Mellon University. All rights - * reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * This work was supported in part by funding from the Defense Advanced - * Research Projects Agency and the National Science Foundation of the - * United States of America, and the CMU Sphinx Speech Consortium. - * - * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND - * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY - * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * ==================================================================== - * - */ -/********************************************************************* - * - * File: matrix.h - * - * Description: Matrix and linear algebra functions - * - * Author: - * - *********************************************************************/ - -#ifndef MATRIX_H -#define MATRIX_H - -/** \file matrix.h - * \brief Matrix and linear algebra functions. - * - * This file contains some basic matrix and linear algebra operations. - * In general these operate on positive definite matrices ONLY, - * because all matrices we're likely to encounter are either - * covariance matrices or are derived from them, and therefore a - * non-positive-definite matrix indicates some kind of pathological - * condition. - */ -#ifdef __cplusplus -extern "C" { -#endif -#if 0 -/* Fool Emacs. */ -} -#endif - -/* Win32/WinCE DLL gunk */ -#include <sphinxbase/sphinxbase_export.h> -#include <sphinxbase/prim_type.h> - - -/** - * Norm an array - * @param arr array - * @param d1 dimension - * @param d2 dimension - * @param d3 dimension - **/ -SPHINXBASE_EXPORT void norm_3d(float32 ***arr, uint32 d1, uint32 d2, uint32 d3); - -/** - * Floor 3-d array - * @param out output array - * @para in input array - * @param d1 dimension - * @param d2 dimension - * @param d3 dimension - **/ -SPHINXBASE_EXPORT void -accum_3d(float32 ***out, float32 ***in, uint32 d1, uint32 d2, uint32 d3); - -/** Ensures that non-zero values x such that -band < x < band, band > 0 are set to -band if x < 0 and band if x > 0. - * @param v array - * @param d1 array size - * @param band band value - */ -SPHINXBASE_EXPORT void band_nz_1d(float32 *v, uint32 d1, float32 band); - -/** - * Floor 3-d array - * @param m array - * @param d1 dimension - * @param d2 dimension - * @param d3 dimension - * @param floor floor value - **/ -SPHINXBASE_EXPORT void floor_nz_3d(float32 ***m, uint32 d1, uint32 d2, uint32 d3, float32 floor); - -/** - * Floor 1-d array - * @param m array - * @param d1 dimension - * @param floor floor value - **/ -SPHINXBASE_EXPORT void floor_nz_1d(float32 *v, uint32 d1, float32 floor); - -/** - * Calculate the determinant of a positive definite matrix. - * @param a The input matrix, must be positive definite. - * @param len The dimension of the input matrix. - * @return The determinant of the input matrix, or -1.0 if the matrix is - * not positive definite. - * - * \note These can be vanishingly small hence the float64 return type. - * Also note that only the upper triangular portion of a is - * considered, therefore the check for positive-definiteness is not - * reliable. - **/ -SPHINXBASE_EXPORT -float64 determinant(float32 **a, int32 len); - -/** - * Invert (if possible) a positive definite matrix. - * @param out_ainv The inverse of a will be stored here. - * @param a The input matrix, must be positive definite. - * @param len The dimension of the input matrix. - * @return 0 for success or -1 for a non-positive-definite matrix. - * - * \note Only the upper triangular portion of a is considered, - * therefore the check for positive-definiteness is not reliable. - **/ -SPHINXBASE_EXPORT -int32 invert(float32 **out_ainv, float32 **a, int32 len); - -/** - * Solve (if possible) a positive-definite system of linear equations AX=B for X. - * @param a The A matrix on the left-hand side of the equation, must be positive-definite. - * @param b The B vector on the right-hand side of the equation. - * @param out_x The X vector will be stored here. - * @param n The dimension of the A matrix (n by n) and the B and X vectors. - * @return 0 for success or -1 for a non-positive-definite matrix. - * - * \note Only the upper triangular portion of a is considered, - * therefore the check for positive-definiteness is not reliable. - **/ -SPHINXBASE_EXPORT -int32 solve(float32 **a, float32 *b, - float32 *out_x, int32 n); - -/** - * Calculate the outer product of two vectors. - * @param out_a A (pre-allocated) len x len array. The outer product - * will be stored here. - * @param x A vector of length len. - * @param y A vector of length len. - * @param len The length of the input vectors. - **/ -SPHINXBASE_EXPORT -void outerproduct(float32 **out_a, float32 *x, float32 *y, int32 len); - -/** - * Multiply C=AB where A and B are symmetric matrices. - * @param out_c The output matrix C. - * @param a The input matrix A. - * @param b The input matrix B. - * @param n Dimensionality of A and B. - **/ -SPHINXBASE_EXPORT -void matrixmultiply(float32 **out_c, /* = */ - float32 **a, /* * */ float32 **b, - int32 n); - -/** - * Multiply a symmetric matrix by a constant in-place. - * @param inout_a The matrix to multiply. - * @param x The constant to multiply it by. - * @param n dimension of a. - **/ -SPHINXBASE_EXPORT -void scalarmultiply(float32 **inout_a, float32 x, int32 n); - -/** - * Add A += B. - * @param inout_a The A matrix to add. - * @param b The B matrix to add to A. - * @param n dimension of a and b. - **/ -SPHINXBASE_EXPORT -void matrixadd(float32 **inout_a, float32 **b, int32 n); - -#if 0 -{ /* Fool indent. */ -#endif -#ifdef __cplusplus -} -#endif - -#endif /* MATRIX_H */ - |