Searched refs:delta_gradient (Results 1 – 3 of 3) sorted by relevance
175 const Vector delta_gradient = current.gradient - previous.gradient; in NextDirection() local176 const double delta_x_dot_delta_gradient = delta_x.dot(delta_gradient); in NextDirection()254 delta_x_dot_delta_gradient / delta_gradient.dot(delta_gradient); in NextDirection()298 Matrix A = delta_x * (delta_gradient.transpose() * in NextDirection()303 (1.0 + (rho_k * delta_gradient.transpose() * in NextDirection()305 delta_gradient)); in NextDirection()
89 const Vector& delta_gradient) { in Update() argument90 const double delta_x_dot_delta_gradient = delta_x.dot(delta_gradient); in Update()112 delta_gradient_history_.col(next) = delta_gradient; in Update()115 delta_x_dot_delta_gradient / delta_gradient.squaredNorm(); in Update()
84 bool Update(const Vector& delta_x, const Vector& delta_gradient);