This paper studies the polynomial basis that generates smallest n-simplex enclosing a given nth-degree curve in Rn. Although Bernstein and B-Spline bases provide feasible solutions to this problem, simplexes obtained by these are not possible, which leads overly conservative results many CAD (computer-aided design) applications. We first prove solves problem (MINVO basis) also for with largest ...

Most existing algorithms employ a uniform minimum support for mining association rules. Nevertheless, each item in a publication database, even each set of items, is exhibited in an individual period. A reasonable minimum support threshold has to be adjusted according to the exhibition period of each k-itQmsQt Accordingly, this paper proposes a new algorithm, called WMS, for mining association ...

BACKGROUND AND PURPOSE This study aims to determine whether perfusion computed tomographic (PCT) thresholds for delineating the ischemic core and penumbra are time dependent or time independent in patients presenting with symptoms of acute stroke. METHODS Two hundred seventeen patients were evaluated in a retrospective, multicenter study. Patients were divided into those with either persisten...

In recent years, the number of services in mobile networks has increased exponentially. This increase forced operators to change their network management processes ensure an adequate Quality Experience (QoE). A key component QoE is availability a precise model for every service that reflects impact performance variations on end-user experience. this work, automatic method presented deriving Qua...

Water sorption, volumetric expansion, and proton conductivity of 1100 EW Nafion and 555 EW sulfonated polyetheretherketone (SPEEK) were compared as functions of water activity at 60 and 80 C. Water sorption in Nafion occurs with a small positive volume of mixing, 0.005 cm/cm. In contrast, water sorption in SPEEK has a large negative volume of mixing 0.05 cm/cm. The percolation thresholds for pr...