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  /external/ceres-solver/internal/ceres/
line_search_direction.cc 45 Vector* search_direction) {
46 *search_direction = -current.gradient;
61 Vector* search_direction) {
76 previous.search_direction.dot(gradient_change));
82 *search_direction = -current.gradient + beta * previous.search_direction;
84 current.gradient.dot(*search_direction);
88 *search_direction = -current.gradient;
113 Vector* search_direction) {
120 previous.search_direction * previous.step_size
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low_rank_inverse_hessian.cc 122 VectorRef search_direction(y_ptr, num_parameters_);
124 search_direction = gradient;
132 const double alpha_i = delta_x_history_.col(*it).dot(search_direction) /
134 search_direction -= alpha_i * delta_gradient_history_.col(*it);
169 search_direction *= approximate_eigenvalue_scale_;
179 const double beta = delta_gradient_history_.col(*it).dot(search_direction) /
181 search_direction += delta_x_history_.col(*it) * (alpha(*it) - beta);
line_search_minimizer.h 54 search_direction(num_effective_parameters),
63 Vector search_direction; member in struct:ceres::internal::LineSearchMinimizer::State
line_search_minimizer.cc 238 current_state.search_direction = -current_state.gradient;
243 &current_state.search_direction);
278 current_state.search_direction = -current_state.gradient;
281 line_search_function.Init(x, current_state.search_direction);
283 current_state.gradient.dot(current_state.search_direction);
329 delta = current_state.step_size * current_state.search_direction;
line_search_direction.h 66 Vector* search_direction) = 0;

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