This work describes a method of approximating matrix permanents efficiently using belief propagation. We formulate a probability distribution whose partition function is exactly the permanent, then use Bethe free energy to approximate this partition function. After deriving some speedups to standard belief propagation, the resulting algorithm requires O(n) time per iteration and seems empirical...

A minimum basic data set (MBDS) was designed and used in general practice. The most important purpose and need for establishing such a data set is to assist in the provision of patient care. MBDS is designed to meet common needs for many general practitioners. Minimum means that individual programmes or the GP are free to collect as much additional data as they may wish. The MBDS includes two k...

This paper deals with characteristics of interior permanent magnet synchronous motor considering anisotropic characteristics of electrical steel sheets. Motor characteristics of back electro-motive force (EMF), d-q axis inductances, and core loss are calculated by FEA considering anisotropy of electrical steel sheets and compared to the results from experiment and general FEA; using single mate...

The design of synchronous reluctance machines with and without permanent magnets assistance constitutes a challenging engineering task due to the numerous variables performance indexes be considered. complexity increases even further when application requires high speed operation, consequent rotor structural constraints related effects on electromagnetic performance. Structured as two-parts com...

Valiant introduced some 25 years ago an algebraic model of computation along with the complexity classes VP and VNP, which can be viewed as analogues of the classical classes P and NP. They are defined using non-uniform sequences of arithmetic circuits and provides a framework to study the complexity for sequences of polynomials. Prominent examples of difficult (that is, VNP-complete) problems ...

objective: there is no definitive data on the strength of glass fiber and cast posts with different length. this in vitro study was designed to investigate and compare the effect of length on the retentive strength of glass fiber and cast posts. materials and methods: sixty recently extracted intact maxillary canine teeth were cut 1mm above the cej. the specimens were endodontically treated and...