نتایج جستجو برای: events per variable
تعداد نتایج: 972360 فیلتر نتایج به سال:
Assuming a zero order process, the beta-binomial distribution model is often used to describe consumers' brand switching behavior. A variety of methods have been used to estimate the parameters of the beta-binomial distribution, each of which assumes fixed number of purchase occasions across households . Consumer panel data, however, are typically available for a fixed duration of time (say, a ...
We make a case for sub-polyhedral scheduling using (Unit-)TwoVariable-Per-Inequality or (U)TVPI Polyhedra. We empirically show that using general convex polyhedra leads to a scalability problem in a widely used polyhedral scheduler. We propose methods in which polyhedral schedulers can beat the scalability challenge by using sub-polyhedral under-aproximations of the polyhedra resulting from the...
BACKGROUND AND OBJECTIVES Atherosclerotic renal artery stenosis may cause kidney function loss, but effects of stenting on eGFR and clinical events associated with CKD are uncertain. Our study objectives were to determine effects of stenting on eGFR and predictors of clinical events. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Participants (n=931) in the Cardiovascular Outcomes in Renal Art...
UNLABELLED PREMISE OF THE STUDY Lonicera maackii (Caprifoliaceae) is one of the most problematic invasive shrubs in forests of the eastern United States. Microsatellite markers could serve to test putative source-sink relationships among populations to determine whether invasions progress along expanding fronts or through long-distance dispersal events followed by local expansion. • METHOD...
We study long run average behavior of generalized semi-Markov processes with both fixed-delay events as well as variable-delay events. We show that allowing two fixed-delay events and one variable-delay event may cause an unstable behavior of a GSMP. In particular, we show that a frequency of a given state may not be defined for almost all runs (or more generally, an invariant measure may not e...
Energy is one of the most important inputs in production. Energy usage and energy diffusion of fossil fuels in process of production cause greenhouse gases (CO2) emission and destruction of environment. According to the importance of issues like energy usage and economic growth, this paper, concerning the effects of proximity, evaluates the effects of energy usage and economic growth on emissio...
Parallel redundancy is a common approach to increase network availability. As consequence of providing redundancy, the loading that component changes, affecting its reliability. In this article, holistic combining two models introduced assess both instantaneous and future effects on general failure rates in context competing risks dynamic degradation. Concretely, are designed account for durati...
the increasing consumption of electricity in iran is one of the greatest concerns of the government. using the subsidy-based pricing system is one of the main reasons of improper pattern of residential electricity consumption that has imposed great cost over the government due to the increased number of consumers and their improper way of consuming electricity. in this paper, we analyze the fac...
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