This paper addresses a method to solve multi-period portfolio selection on the stock market. The problem seeks an investor trade stocks with finite budget and given integer number of hold in portfolio. must be performed through stockbroker that charges its respective transaction cost has minimum required amount. A mathematical model been proposed deal constrained problem. objective function is ...

   Measuring the performance of a production system has been an important task in management for purposes of control, planning, etc. Lord Kelvin said :“When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind.” Hence, manag...

obtaining these measures. P otential computer system users or buyers usually employ a computer performance evaluation technique only if they believe its results provide valuable information. System Performance Evaluation Cooperative (SPEC) measures are perceived to provide such information and are therefore the ones most commonly used. SPEC measures are designed to evaluate the performance of e...

The purpose of much computer science research is to invent algorithms, and generate evidence to convince others that the new methods are worthwhile. All too often, however, the work has no impact, because the supporting evidence does not meet basic standards of rigor or persuasiveness. Here the notion of “experiment” is explored, with reference to our current investigation into distributed text...

There is a problem with blood pressure control in the United States--a problem with significant implications for the health and welfare of the populace. This problem is bigger than managed care, but managed care organizations have both unique opportunities and unique obligations to address it. NCQA has responded to this problem, and to the opportunity for better care implicit in it, by introduc...

Measuring transportation performance has become at once more urgent and complicated. Pressures of ITS deployment and accountability contribute to the urgency. Demands for comprehensive measures create complexity. This note proposes a simple performance system, named TransAcct. Its virtues are: attention to the most important measures, use of readily available sensor measurements and processing ...