Fast convergence of the simplified largest step path following algorithm
نویسندگان
چکیده
Each master iteration of a simpliied Newton algorithm for solving a system of equations starts by computing the Jacobian matrix and then uses this matrix in the computation of p Newton steps: the rst of these steps is exact, and the other are called \simpliied". In this paper we apply this approach to a large step path following algorithm for monotone linear complementarity problems. The resulting method generates sequences of objective values (duality gaps) that converge to zero with Q-order p + 1 in the number of master iterations, and with a complexity of O(p nL) iterations. Convergence rapide de l'algorithme de plus grand pas simplii e R esum e : Chaque it eration majeure de la m ethode de Newton simplii ee pour r esoudre un syst eme d' equations commence par calculer le Jacobien, puis utilise ce Jacobien pour le calcul de p pas de Newton : le premier de ces pas est dit exact, et les autres sont dits \simplii es". L'article applique cette approche a un algorithme de suivi de chemins a grands pas, pour des probl emes de compl ementarit e lin eaire monotone. La m ethode g en ere une suite de valeurs de l'objectif (ou sauts de dualit e) qui converge vers zero avec un Q-ordre p + 1 en nombre d'iterations majeures, et avec une complexit e de O(p nL) it erations. Mots-cl e : Probl eme de compl ementarit e lin eaire, algorithme de point int erior primal-dual, convergence d'algorithmes, m ethode de Newton simplii ee. Fast convergence of the simpliied largest step path following algorithm 3
منابع مشابه
The Wavelet Transform-Domain LMS Adaptive Filter Algorithm with Variable Step-Size
The wavelet transform-domain least-mean square (WTDLMS) algorithm uses the self-orthogonalizing technique to improve the convergence performance of LMS. In WTDLMS algorithm, the trade-off between the steady-state error and the convergence rate is obtained by the fixed step-size. In this paper, the WTDLMS adaptive algorithm with variable step-size (VSS) is established. The step-size in each subf...
متن کاملAn Optimized Online Secondary Path Modeling Method for Single-Channel Feedback ANC Systems
This paper proposes a new method for online secondary path modeling in feedback active noise control (ANC) systems. In practical cases, the secondary path is usually time-varying. For these cases, online modeling of secondary path is required to ensure convergence of the system. In literature the secondary path estimation is usually performed offline, prior to online modeling, where in the prop...
متن کاملA Robust Feedforward Active Noise Control System with a Variable Step-Size FxLMS Algorithm: Designing a New Online Secondary Path Modelling Method
Several approaches have been introduced in literature for active noise control (ANC)systems. Since Filtered-x-Least Mean Square (FxLMS) algorithm appears to be the best choice as acontroller filter. Researchers tend to improve performance of ANC systems by enhancing andmodifying this algorithm. This paper proposes a new version of FxLMS algorithm. In many ANCapplications an online secondary pat...
متن کاملOn the Convergence of the Iteration Sequence of Infeasible Path following Algorithms for Linear Complementarity Problems (revised Version)
A generalized class of infeasible-interior-point methods for solving horizontal linear complementarity problem is analyzed and suucient conditions are given for the convergence of the sequence of iterates produced by methods in this class. In particular it is shown that the largest step path following algorithms generates convergent iterates even when starting from infeasible points. The comput...
متن کاملA path-following infeasible interior-point algorithm for semidefinite programming
We present a new algorithm obtained by changing the search directions in the algorithm given in [8]. This algorithm is based on a new technique for finding the search direction and the strategy of the central path. At each iteration, we use only the full Nesterov-Todd (NT)step. Moreover, we obtain the currently best known iteration bound for the infeasible interior-point algorithms with full NT...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Math. Program.
دوره 76 شماره
صفحات -
تاریخ انتشار 1996