Iterative methods for nite-dimensional inclusions which arise in applying a nite-element or a nite-di erence method to approximate state-constrained optimal control problems have been investigated. Speci cally, problems of control on the righthand side of linear elliptic boundary value problems and observation in the entire domain have been considered. The convergence and the rate of convergenc...

In this paper we describe the application of Memory Based Learning to the problem of Prepositional Phrase attachment disam biguation We compare Memory Based Learning which stores examples in mem ory and generalizes by using intelligent sim ilarity metrics with a number of recently proposed statistical methods that are well suited to large numbers of features We evaluate our methods on a common ...

In this paper we present an analysis of three di erent formulations of the discontinuous Galerkin method for di usion equations. The rst formulation yields an inconsistent and weakly unstable scheme, while the other two formulations, the local discontinuous Galerkin approach and the Baumann-Oden approach, give stable and convergent results. When written as nite di erence schemes, such a distinc...

{ This paper studies a stochastic particle method for the numerical treatment of Smoluchowski equation governing the coagulation of particles in a host gas. Convergence in probability is established for the Monte Carlo estimators, when the number of particles tends to in nity. The deterministic limit is characterized as the solution of a discrete in time version of the Smoluchowski equation. Un...

A computer code has been developed that uses an implicit nitedi erence technique to solve nonsimilar, axisymmetric boundary layer equations for both laminar and turbulent ow. The code can treat ideal gases, air in chemical equilibrium, and carbon tetra uoride (CF4), which is a useful test gas for hypersonic blunt-body simulations. This is the only known boundary layer code that can treat CF4. C...

The pointwise error of a nite-di erence calculation of supersonic ow is discussed. The local truncation error is determined by a Taylor series with the remainder being in a Lagrange form. The contribution of the local truncation error to the total pointwise approximation error is estimated via adjoint parameters. It is demonstrated by numerical tests that the results of the numerical calculatio...

Previous analytical descriptions of the Class D-E resonant dc/dc converter using thinned-out method have been based on the assumptions simplifying the e ect of thinned-out control on the equivalent impedance. Therefore the di erence between the calculated values and the measured values is signi cant in large thinned-out ratio. This paper presents a new analysis for this circuit. The equivalent ...

This paper considers a synthesis of output regulation controllers which keep the controlled outputs within the prescribed bounds The controller is designed so that the closed loop system is equal or similar to the target system with an appropriate input output relationship An H norm is used as an object function to measure a di erence betw een them The controller is obtained by minimizing the o...

A popular technique for time delay estimation is to use an FIR #lter to model the time di-erence and the #lter weights are interpolated with a sinc function to obtain the delay estimate. However, the sinc interpolator requires a su/ciently long #lter length for accurate delay estimation. In this paper, we propose to process the #lter weights via a least-squares-based method in order to acquire ...

This paper introduces a model to generate \emotional" animation from \neutral" humanmotion. Using techniques from signal processing, our method calculates certain emotional transformswhich are then applied to existing motions of articulated gures in order to produce the same motions, but with an emotional quality such as angry or sad. These transforms capture the di erence between a neutral and...