In this paper we propose to use feedback control to automatically allocate disk bandwidth in order to match the rate of disk I/O to the real-rate [13] needs of applications. We describe a model for adaptive resource management based on measuring the relative progress of stages in a producer-consumer pipeline. We show how to use prefetching to transform a passive disk into an active data produce...

Throughout the 1990s and the early 2000s, the Social Security Administration’s publication Income of the Population 55 or Older has reported a decline in the proportion of the elderly receiving asset income and a corresponding rise in the proportion of the elderly receiving all of their income from Social Security. The decrease in receipt of asset income is puzzling because greater numbers of p...

Introduction Word of mouth has long been recognized as a major driver of product sales. It can raise consumer awareness, and may be one of the few reliable sources of information about the quality of experience goods. With the development of the Internet, word of mouth has moved beyond small groups and communities, to being freely available through largescale consumer ne tworks (Avery, Resnick ...

Early in January 1984, beneficiaries under the OldAge, Survivors, and Disability Insurance (OASDI) program received a 3.5-percent cost-of-living increase. This increase, effective for December 1983, was originally scheduled to take effect in June but was postponed by the 1983 Amendments to the Social Security Act. . Automatic cost-of-living increases were instituted in 1975 by legislation enact...

Many consumer choice situations are characterized by the simultaneous demand for multiple alternatives that are imperfect substitutes for one another, along with a continuous quantity dimension for each chosen alternative. To model such multiple discrete-continuous choices, most multiple discrete-continuous models in the literature use an additively-separable utility function, with the assumpti...

This paper considers a world of two symmetric countries with two factors and two sectors. Outputs of the two sectors are imperfect substitutes and sectors differ in relative factor intensity. Each sector contains a continuum of heterogenous firms that produce differentiated goods within their sector. Trade is costly and there are both variable and fixed costs of exporting. The paper shows that ...

PURPOSE The authors analyzed online consumer health information related to screening tests to see how well this information meets known standards for supporting the understanding of test uncertainty. SETTING/SUBJECTS MedlinePlus documents regarding maternal serum screening (6), prostate-specific antigen testing (6), and screening mammography (6) were analyzed. METHODOLOGY The content of the...

An important aspect of e-business is the area of e-commerce. One of the most severe restraining factors for the proliferation of e-commerce, is the lack of trust between customers and sellers, consumer privacy concerns and the lack of security measures required to assure both businesses and customers that their business relationship and transactions will be carried out in privacy, correctly, an...

In this paper, we evaluate the stability of a plan solution at the task level and argue that it is important for task structure based multi-agent replanning. With a plan solution represented by a TÆMS (Task Analysis, Environment Modeling and Simulation) task structure, we define new metrics of the stability of a TÆMS solution and use it to rank and recommend plan candidates. We preliminarily ev...

One of the most important aspects of consumer health information services and programs is the emphasis on best practices. As a consumer health librarian, I am always looking for successful examples of services and programs that I can offer to the patients and families of my hospital. This book is an invaluable resource for consumer health librarians, especially those who are solo, as I am. I us...