An architecture for integrating distributed and cooperating knowledge-based Air Force decision aids

MITRE has been developing a Knowledge-Based Battle Management Testbed for evaluating the viability of integrating independently-developed knowledge-based decision aids in the Air Force tactical domain. The primary goal for the testbed architecture is to permit a new system to be added to a testbed with little change to the system's software. Each system that connects to the testbed network declares that it can provide a number of services to other systems. When a system wants to use another system's service, it does not address the server system by name, but instead transmits a request to the testbed network asking for a particular service to be performed. A key component of the testbed architecture is a common database which uses a relational database management system (RDBMS). The RDBMS provides a database update notification service to requesting systems. Normally, each system is expected to monitor data relations of interest to it. Alternatively, a system may broadcast an announcement message to inform other systems that an event of potential interest has occurred. Current research is aimed at dealing with issues resulting from integration efforts, such as dealing with potential mismatches of each system's assumptions about the common database, decentralizing network control, and coordinating multiple agents

Teacher selection : administrative views toward screening beginning high school physical education teachers

The purpose of this study was to give a prospective teacher some insight into evaluation criteria an employer might consider important in assessing personal qualities and professional qualifications. The study problem posed for solution was to determine the viewpoints held by Superintendents or Personnel Director, and Principals, in selected California counties, toward the screening process for selecting beginning high school Physical Education teachers; and, subsequently, to compare the viewpoints of the two respondent groups

Prospectus, April 5, 1989

https://spark.parkland.edu/prospectus_1989/1006/thumbnail.jp

Essays on the Economic Consequences of Capital Controls

This dissertation consists of three chapters. In Chapter One, we review the literature on the economic consequences of capital controls. Capital controls are advocated as second-best policy in the presence of a pecuniary externality. Restricting capital inflows as a prudential tool during economic booms may distort the efficient allocation of capital but it invokes precautionary saving behavior so that agents do not overborrow. The financial crises that are fueled by capital market distortions can be mitigated by the use of prudential capital controls, heightened during the boom and released during the bust. The empirical evidence on capital controls has revealed that they are useful for pushing the maturity composition of capital flows toward the long-term end, generating monetary independence through interest rate differentials, reducing the share of bank loans denominated in foreign currencies, improving economic resilience, and to a lesser extent, reducing exchange rate pressures. There is a small but growing body of evidence that capital controls incur high costs for firms and can cause spillovers at the country level heeding calls for coordination. In Chapter Two, we evaluate financial stability and cash flows management objectives of capital controls in the context of four capital control events: removing or imposing controls on capital inflows and removing or imposing controls on capital outflows. Using the synthetic control method, we solve the endogeneity problem between the decision the use capital controls and the outcomes of interest. We find new evidence that capital controls are not consistently effective in reaching financial stability outcomes but are consistent in reaching cash flows management outcomes. We compare our results to estimates using difference-in-difference and carry out placebo analysis. In Chapter Three, I evaluate the effect of short-term capital controls on direct investment. Capital controls remain a common approach to capital flows management. Meanwhile, the IMF has revised its position regarding selective use capital controls. However, the effects of granular variation in capital controls by asset category and direction of flow are not fully documented. Using a new dataset on capital control measures, I find that countries using capital controls on short-term capital inflows receive a higher level of direct investment inflows, and that this effect is decreasing in the country\u27s growth rate. I show that this result is consistent with the interpretation that the capital control serves as a signal of stability in slower-growing countries

The Zwicky Transient Facility: Surveys and Scheduler

We present a novel algorithm for scheduling the observations of time-domain imaging surveys. Our Integer Linear Programming approach optimizes an observing plan for an entire night by assigning targets to temporal blocks, enabling strict control of the number of exposures obtained per field and minimizing filter changes. A subsequent optimization step minimizes slew times between each observation. Our optimization metric self-consistently weights contributions from time-varying airmass, seeing, and sky brightness to maximize the transient discovery rate. We describe the implementation of this algorithm on the surveys of the Zwicky Transient Facility and present its on-sky performance.Comment: Published in PASP Focus Issue on the Zwicky Transient Facility (https://dx.doi.org/10.1088/1538-3873/ab0c2a). 13 Pages, 11 Figure