When only global optimization matters
نویسنده
چکیده
In this short note, the objective of which is essentially pedagogical, we show that in the well-known problem which consists of minimizing the rank of a matrix, every admissible point is a local minimizer. Hence, in this problem like in various other ones, only global minimization matters.
منابع مشابه
Management Certainly Matters, and There Are Multiple Ways to Conceptualize the Process; Comment on “Management Matters: A Leverage Point for Health Systems Strengthening in Global Health”
The authors of “Management matters: a leverage point for health systems strengthening in global health,” raise a crucial issue. Because more effective management can contribute to better performing health systems, attempts to strengthen health systems require attention to management. As a guide toward management capacity building, the authors outline a comprehensive set of core management compe...
متن کاملOn Management Matters: Why We Must Improve Public Health Management Through Action; Comment on “Management Matters: A Leverage Point for Health Systems Strengthening in Global Health”
Public health management is a pillar of public health practice. Only through effective management can research, theory, and scientific innovation be translated into successful public health action. With this in mind, the U.S. Centers for Disease Control and Prevention (CDC) has developed an innovative program called Improving Public Health Management for Action (IMPACT) which aims to address th...
متن کاملDoes Management Really Matter? And If so, to Who?; Comment on “Management Matters: A Leverage Point for Health Systems Strengthening in Global Health”
The editorial is commendable and I agree with many of the points raised. Management is an important aspect of health system strengthening which is often overlooked. In order to build the capacity of management, we need to consider other factors such as, the environment within which managers work, their numbers, support systems and distribution. Effective leadership is an issue which cannot be o...
متن کاملHybrid Probabilistic Search Methods for Simulation Optimization
Discrete-event simulation based optimization is the process of finding the optimum design of a stochastic system when the performance measure(s) could only be estimated via simulation. Randomness in simulation outputs often challenges the correct selection of the optimum. We propose an algorithm that merges Ranking and Selection procedures with a large class of random search methods for continu...
متن کاملOptimization in Uncertain and Complex Dynamic Environments with Evolutionary Methods
In the real world, many of the optimization issues are dynamic, uncertain, and complex in which the objective function or constraints can be changed over time. Consequently, the optimum of these issues is changed nonlinearly. Therefore, the optimization algorithms not only should search the global optimum value in the space but also should follow the path of optimal change in dynamic environmen...
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:
- J. Global Optimization
دوره 56 شماره
صفحات -
تاریخ انتشار 2013