Results 261 to 270 of about 16,409,640 (303)

Discrete-time Networks

1989
To realize a discrete-time filter with either computer software, a programmable DSP chip, or custom VLSI, a network must be specified describing the computations to be performed. For software realizations, the network corresponds to a flowchart of the filter algorithm, while for hardware realizations, the network describes the actual circuit elements ...
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Continuous and Discrete Time Models

1987
Most economists recognize that the use of discrete time is only an approximation, but assume (usually implicitly) that the error of approximation involved is trivially small relative to the other sorts of simplification and approximation inherent in economic theorizing.
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Discrete-time differential systems

Signal Processing, 2015
In this paper we formulate a coherent discrete-time signals and systems theory taking derivative concepts as basis. Two derivatives - nabla (forward) and delta (backward) - are defined and generalized to fractional orders, obtaining two formulations that are discrete versions of the well-known Grunwald-Letnikov derivatives.
Manuel Duarte Ortigueira, Fernando J. V. Coito, Juan J. Trujillo   +2 more
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Discrete-Time Insurance Models

Moscow University Mathematics Bulletin, 2023
The subject of the paper is a study of some insurance company ruin probability model in discrete time. The time-periods are the ones related to the sequential arrivals of claims and the perception of them both by an insurance and a reinsurance company.
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Impulse Control in Discrete Time

gmj, 2008
Abstract We present here impulse control theory in discrete time. We show the connection between quasi-variational inequalities (QVI) in this context, with the standard formulation of dynamic programming. We show that the QVI formulation brings many interesting features, completing the standard formulation of dynamic programming.
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Discrete-time Promela and Spin

1998
Spin is a software package for the verification of concurrent systems. A system to be verified is modeled in Promela — Spin’s input language. We present an extension of Promela and Spin with discrete time that provides an opportunity to model systems whose correct functioning crucially depends on timing parameters.
Bosnacki, D., Dams, D.R.
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Discrete‐time survival trees

Canadian Journal of Statistics, 2009
AbstractTree‐based methods are frequently used in studies with censored survival time. Their structure and ease of interpretability make them useful to identify prognostic factors and to predict conditional survival probabilities given an individual's covariates.
Bou-Hamad, Imad, Larocque, Denis, Ben-Ameur, Hatem, Mâsse, Louise C., Vitaro, Frank, Tremblay, Richard E.   +5 more
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A discrete-time queueing network

Journal of Applied Probability, 1983
A discrete-time network with multiple transitions is defined. It is characterized by the independence of the service processes at different nodes. That network is shown to have the familiar quasi-reversibility properties.
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Surveillance in Discrete Time Series

2018
The analysis of low integer-valued time series is an area of growing interest as time series of counts arising from many different areas have become available in the last three decades. Statistical quality control, computer science, economics and finance, medicine and epidemiology and environmental sciences are just some of the fields that we can ...
Costa, Maria da Conceição, Pereira, Isabel, Scotto, Manuel G.   +2 more
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Nonlinear Systems in Discrete Time

1986
The paper deals with a survey presentation of recent results obtained in the area of nonlinear discrete time systems following an approach based on the functional expansions of the state and output behaviours.
MONACO, Salvatore, Normand Cyrot D.
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