Given a matrix A, a linear feasibility problem (of which linear classification is a special case) aims to find a solution to a primal problem w : ATw > 0 or a certificate for the dual problem which is a probability distribution p : Ap = 0. Inspired by the continued importance of “large-margin classifiers” in machine learning, this paper studies a condition measure of A called its margin that de...

UNLABELLED We previously studied hospitals in the United States of America that are losing money despite limiting the hours that operating room (OR) staff are available to care for patients undergoing elective surgery. These hospitals routinely keep utilization relatively high to maximize revenue. We tested, using discrete-event computer simulation, whether increasing patient volume while being...

This study aims to determine the effect of Current Ratio and Total Asset Turnover on Gross Profit Margin during COVID-19 pandemic. The variables used in this research are Ratio, Margin. was conducted hotels, restaurants tourism sub-sector companies listed IDX April 2020-September 2021. method is quantitative, with an associative approach, measurement scale ratio scale. sampling technique purpos...

in this paper, the static var compensator (svc) has been used to improve dynamic behaviour of power system. to do this, a new objective function is formulated considering power loss reduction, voltage profile improvement and loadability margin decrease. other contribution of this research is proposing a novel structure for particle swarm optimization (pso) algorithm through modifying the initia...

The purpose of this paper is to introduce hotel managers and hospitality educators to room revenue analysis method that is based on statistical indices. A paper presents a theoretical example of a room pricing and shows how changes in a total room contribution margin can be attributed to one of three changes: (a) changes in contribution margins for a hotel room with a specific rate, (b) changes...

In this brief, the margin of stability of two-dimensional (2D) discrete systems is considered. A new method to compute the stability margin of 2-D continuous systems is provided. Illustrative examples are also included.

In his Presidential Address to the European Economic Association, Tony Atkinson introduced the idea of a “Charitable Conservatism” position in public policy, which “exhibits a degree of concern for the poor, but this is the limit of the redistributional concern and there is indifference with respect to transfers above the poverty line.” This contrasts with the perspective of poverty indices, wh...

In this paper, we propose a novel large margin classifier, called the maxi-min margin machine M(4). This model learns the decision boundary both locally and globally. In comparison, other large margin classifiers construct separating hyperplanes only either locally or globally. For example, a state-of-the-art large margin classifier, the support vector machine (SVM), considers data only locally...