A Rectangular Area Filling Display System Architecture

A display system architecture which has rectangular area filling as its primitive operation is presented. It is shown that lines can be drawn significantly faster while rendition of filled boxes shows an O(n^2) speed improvement. Furthermore filled polygons can be rendered with an O(n) speed improvement. Implementation of this rectangular area filling architecture is discussed and refined. A custom VLSI integrated circuit is currently being designed to implement this rectangular area filling architecture and at the same time reduce the display memory system video refresh bandwidth requirements

Decision analysis with approximate probabilities

This paper concerns decisions under uncertainty in which the probabilities of the states of nature are only approximately known. Decision problems involving three states of nature are studied. This is due to the fact that some key issues do not arise in two-state problems, while probability spaces with more than three states of nature are essentially impossible to graph. The primary focus is on two levels of probabilistic information. In one level, the three probabilities are separately rounded to the nearest tenth. This can lead to sets of rounded probabilities which add up to 0.9, 1.0, or 1.1. In the other level, probabilities are rounded to the nearest tenth in such a way that the rounded probabilities are forced to sum to 1.0. For comparison, six additional levels of probabilistic information, previously analyzed, were also included in the present analysis. A simulation experiment compared four criteria for decisionmaking using linearly constrained probabilities (Maximin, Midpoint, Standard Laplace, and Extended Laplace) under the eight different levels of information about probability. The Extended Laplace criterion, which uses a second order maximum entropy principle, performed best overall

Predicting de novo branch entry into rural markets

An investigation of the probability of de novo branch entry into rural banking markets in Ohio and Pennsylvania to determine whether potential competition is an effective disciplinary force in bank-market expansion.Bank competition ; Banking market ; Branch banks

Holding company interest-rate sensitivity: before and after October 1979

Since October 1979, market interest-rate movements have been frequent and large. Over the same time period, for a variety of reasons, competition has intensified in both bank loan and deposit markets. These developments have changed the benefits and costs of various types of asset/liability management strategies or alternatively a financial institution's level of interest-rate risk exposure. In this study, the rate-sensitivity postures of a sample of holding companies are examined over the 1977 to 1983 interval to determine whether and how asset/liability management strategies changed after October 1979. In general, the evidence suggests that holding companies reduced their exposure to rate risk in the immediate post-October 1979 period. However, this change does not appear to have been permanent. the data show a reversal of this pattern at a number of companies in 1982 and 1983.Asset-liability management ; Bank holding companies