Recent research suggests that colorization models have the capability of generating plausible color versions from grayscale images. In this paper, we investigate whether colorization prior to gender classification improves classification performance on the FERET grayscale face dataset. For this, we colorize the images using an existing Lab colorization model, both with and without class rebalan...

We consider the hedging error of a derivative due to discrete trading in the presence of a drift in the dynamics of the underlying asset. We suppose that the trader wishes to find rebalancing times for the hedging portfolio which enable him to keep the discretization error small while taking advantage of market trends. Assuming that the portfolio is readjusted at high frequency, we introduce an...

This paper examines two important aspects of telecommunications liberalization as a policy for economic development. The first involves the tradeoff between increased efficiency from competition and the consequences of higher prices for basic services resulting from rate-rebalancing. The second addresses an entrant’s ability to provide efficient, high-quality service under the given competitive...

Investment portfolios should be rebalanced to take account of changing market conditions and changes in funding. Standard mean-variance (MV) portfolio selection methods are not appropriate for portfolio rebalancing, as the initial portfolio, change in funding and transaction costs are not considered. A quadratic mixed integer programming portfolio rebalancing model, which takes account of these...

We analyze the error between a discretely rebalanced portfolio and its continuously rebalanced counterpart in the presence of jumps or mean-reversion in the underlying asset dynamics. With discrete rebalancing, the portfolio’s composition is restored to a set of fixed target weights at discrete intervals; with continuous rebalancing, the target weights are maintained at all times. We examine th...

An Econometric Model of Credit Spreads with Rebalancing, ARCH, and Jump Effects In this paper, we examine the dynamic behavior of credit spreads on corporate bond portfolios. We propose an econometric model of credit spreads that incorporates portfolio rebalancing, the near unit root property of spreads, the autocorrelation in spread changes, the ARCH conditional heteroscedasticity, jumps, and ...

ÐWe investigate the data-parallel implementation of a set of ªinformation filtersº used to rule out uninteresting data from a database or data stream. We develop an analytic model for the costs and advantages of load rebalancing the parallel filtering processes, as well as a quick heuristic for its desirability. Our model uses binomial models of the filter processes and fits key parameters to t...

WtNTER 2006 I nstitutional money managers develop risk models and optimal portfolios to match a desired risk/reward profile. Utility functions express risk preferences and implicitly reflect the views of fund trustees or directors. Once a manager determines a target portfolio, maintaining this balance of assets is non-trivial. A manager must rebalance actively because different asset classes ca...