Stochastic gradient descent (SGD) is a ubiquitous algorithm for a variety of machine learning problems. Researchers and industry have developed several techniques to optimize SGD's runtime performance, including asynchronous execution and reduced precision. Our main result is a martingale-based analysis that enables us to capture the rich noise models that may arise from such techniques. Specif...

A strategy of fault diagnosis and tolerance for asynchronous sequential machines is discussed in this paper. With no synchronizing clock, it is difficult to diagnose an occurrence of permanent or stuck-in faults in the operation of asynchronous machines. In this paper, we present a fault detector comprised of a timer and a set of static functions to determine the occurrence of faults. In order ...

Strict compliance with technological requirements in the production of steel is one main factors that determine quality products. In mining industry, at metallurgical enterprises and transport hubs, all kinds vibrating machines are widely used, particular conveyors (VTM): conveyors, feeders, screens screen vibratory loaders. The type drive such an inertial drive, which consists unbalanced vibra...

In recent years, artificial intelligence has achieved great success in many important applications. Both novel machine learning algorithms (e.g., deep neural networks), and their distributed implementations play very critical roles in the success. In this tutorial, we will first review popular machine learning algorithms and the optimization techniques they use. Second, we will introduce widely...

The working state of freguency-operated asinchronous motor irrigation pump in the closed system with feedback by velocity are considered. issue coefficient, provided a constancy given value, loading coefficient for voltage control pro rata freguency determined. Let us consider static mode operation frequency-controlled AM speed feedback. A decrease rotation pumps to regulate their productivity ...

For asynchronous machines, 20% of the failures are due to the rotor [1] and particularly the end-ring fault of cage motors. Studies [2,4] have shown that a rotor fault generates flux harmonics which induce in term of harmonics in the stator currents. So, the analysis of the torque which is the product of these two quantities, must give a better information on the faults. In this paper a new tec...

We present a high-level executable specification for the Universal Plug and Play (UPnP) standard illustrating the use of Abstract State Machine (ASM) technology as a practical tool for applied systems engineering. The concept of distributed real-time ASM allows us to combine both synchronous and asynchronous execution models in one uniform model of computation.