This work addresses the problem of sharing execution plans for queries that continuously cluster streaming data to provide an evolving summary of the data stream. This is challenging since clustering is an expensive task, there might be many clustering queries running simultaneously, each continuous query has a long life time span, and the execution plans often overlap. Clustering is similar to...

EEciency dictates that plans for large-scale distributed activities be revised incrementally, with parts of plans being revised only if the expected utility of identifying and revising the subplans improve on the expected utility of using the original plan. The problems of identifying and reconsidering the subplans aaected by changed circumstances or goals are closely related to the problems of...

by the U.S. industry, and it is estimated that approximately 80% of this is spent on correcting chronic failure of machines, system and people.” This clearly indicates the pressing need to reduce these non-product investments, and, in particular, maintenance costs in manufacturing facilities. Another important aspect of non-product investment, especially in the automotive industry, is that moni...

INTRODUCTION The US Public Health Service urges providers to screen patients for smoking and advise smokers to quit. Yet, these practices are not widely implemented in clinical practice. This study provides national estimates of systems-level strategies used by private health insurance plans to influence provider delivery of smoking cessation activities. METHODS Data are from a nationally rep...

Purpose. In this policy brief, we assess variation in Medicare’s star quality ratings of Medicare Advantage (MA) plans that are available to rural beneficiaries. Evidence from the recent Centers for Medicare & Medicaid Services (CMS) quality demonstration suggests that market dynamics, i.e., firms entering and exiting the MA marketplace, play a role in quality improvement. Therefore, we also di...

CONTEXT The proportion of health maintenance organization (HMO) members enrolled in investor-owned plans has increased sharply, yet little is known about the quality of these plans compared with not-for-profit HMOs. OBJECTIVE To compare quality-of-care measures for investor-owned and not-for-profit HMOs. DESIGN, SETTING, AND PARTICIPANTS Analysis of the Health Plan Employer Data and Informa...

question of site and plans. The sub-committee recommended that the proposed institute should also be made a centre for medical research into the diseases prevalent in Assam. The Indian Tea Association, Calcutta, and the Assam and Surma Valley Branches, and many commercial firms and individuals in Calcutta promised donations and also subscriptions towards the annual cost of maintenance. In Octob...

This paper presents an innovative approach in supporting tlie operation of complex equipment. The concept was developed in the context of the KoBaS project (Knowledge Based Customized Services for Traditional Manufacturing Sectors Provided by a Network of High Tech SMEs) whose main objectives are the development of new knowledge based tools jbr an intelligent use and management of more sophisti...

In maintenance of (public) infrastructures, such as the national highway network, an asset manager is responsible for high network quality and throughput, while limiting expenses to a minimum. The maintenance activities, however, are often performed by commercial contractors, mainly driven by profit. Using a network-based payment mechanism we align the objectives of both stakeholders. Nonethele...