It is shown that there does not exist a reversible abelian Hadamard diierence set in

We present a probabilistic error correction technique to be used with an average magnitude di erence function (AMDF) based pitch detector. This error correction routine provides a very simple method to correct errors in pitch period estimation. Used in conjunction with the computationally e cient AMDF, the result is a fast and accurate pitch detector. In performance tests on the CSTR (Center fo...

The use of intelligent techniques in various decision support systems has recently become one of the most exciting and promising application areas. In this paper, we try to utilize Neural Networks (NNs) and the Temporal Di€erence Learning (TD-Learning) Method to construct an intelligent decision support system for dealing stocks. We also brie ̄y touch upon an intelligent sales prediction system ...

Experimental evaluations for path estimation are performed on an abb irb4600 robot. Di erent observers using Bayesian techniques with di erent estimation models are proposed. The estimated paths are compared to the true path measured by a laser tracking system. There is no signi cant di erence in performance between the six observers. Instead, execution time, model complexities and implementati...

1 Abstract. This paper examines a class of explicit nite-diierence advection schemes derived along the method of lines. An important application eld is large-scale atmospheric transport. The paper therefore focuses on the demand of positivity. For the spatial discretization, attention is connned to conservative schemes using 5 points per direction. The 4-th order central scheme and the family o...

The maximum time diierence pipelining is an eeective way to increase the clock rate of a circuit. The maximum time diierence pipelined 8 8 2's complement multiplier based on a 1:5m semi-custom HCMOS process discussed in this paper can work nearly three times faster than an ordinary multiplier based on the same technology. Test result shows the majority of the multiplier's time diierence is caus...

We study the space of linear di↵erence equations with periodic coe cients and (anti)periodic solutions. We show that this space is isomorphic to the space of tame frieze patterns and closely related to the moduli space of configurations of points in the projective space. We define the notion of combinatorial Gale transform which is a duality between periodic di↵erence equations of di↵erent orde...

In this paper, we are concerned with oscillation of the nonlinear di¤erence equation (cn [ (dn xn)] ) + qnf(xg(n)) = 0; n n0; where > 0 is the quotient of odd positive integers, cn, dn and qn are positive sequences of real numbers, g(n) is a sequence of nonnegative integers and f 2 C(R;R) such that uf(u) > 0 for u 6= 0:We establish some new su¢ cient conditions for oscillation by employing the ...

The Finite Di erence Time Domain (FDTD) method belongs to numerical applications that can be described by irregular data patterns or use irregular data structures. This method is based on an iterative algorithm, which is used to simulate high frequency electromagnetic wave propagation. Such simulation is performed by solving Maxwell equations transformed into their di erential form. In order to...

The paper presents a morphological spatio-temporal segmentation method, which is based on a new similarity measure. This similarity measure considers jointly spatial and temporal information and consists therefore of two terms. The rst term minimizes the displaced frame di erence, considering the a ne motion model. By the second term the spatial homogenity of the luminance values of every regio...