Results 11 to 20 of about 7,130 (129)

Time-scale analysis of abrupt changes corrupted by multiplicative noise [PDF]

open access: yes, 2000
Multiplicative Abrupt Changes (ACs) have been considered in many applications. These applications include image processing (speckle) and random communication models (fading).
Chabert, Marie   +5 more
core   +1 more source

Cramer–Rao lower bounds for change points in additive and multiplicative noise [PDF]

open access: yes, 2004
The paper addresses the problem of determining the Cramer–Rao lower bounds (CRLBs) for noise and change-point parameters, for steplike signals corrupted by multiplicative and/or additive white noise. Closed-form expressions for the signal and noise CRLBs
Ferrari, André   +2 more
core   +1 more source

Detection of multiplicative noise in stationary random processes using second- and higher order statistics [PDF]

open access: yes, 2000
This paper addresses the problem of detecting the presence of colored multiplicative noise, when the information process can be modeled as a parametric ARMA process.
Coulon, Martial   +2 more
core   +1 more source

Spatio-temporal epidemic modelling using additive-multiplicative intensity models [PDF]

open access: yes, 2008
An extension of the stochastic susceptible-infectious-recovered (SIR) model is proposed in order to accommodate a regression context for modelling infectious disease surveillance data. The proposal is based on a multivariate counting process specified by
Höhle, Michael
core   +1 more source

Cross hedging under multiplicative basis risk [PDF]

open access: yes, 2011
Cross hedging price risk in an incomplete financial market creates basis risk. We propose a new way of modeling basis risk where price risk and basis risk are combined in a multiplicative way.
Axel F.A. Adam-Müller   +4 more
core   +1 more source

Multiplicative latent force models [PDF]

open access: yes, 2020
Latent force models (LFM) are a class of flexible models of dynamic systems, combining a simple mechanistic model with the flexibility of an additive inhomogeneous Gaussian process (GP) forcing term.
Tait, Daniel J.
core   +1 more source

Multiplicative zero-one laws and metric number theory [PDF]

open access: yes, 2013
We develop the classical theory of Diophantine approximation without assuming monotonicity or convexity. A complete `multiplicative' zero-one law is established akin to the `simultaneous' zero-one laws of Cassels and Gallagher.
Velani, Sanju   +2 more
core   +1 more source

Strongly multiplicative and 3-multiplicative linear secret sharing schemes [PDF]

open access: yes, 2008
Strongly multiplicative linear secret sharing schemes (LSSS) have been a powerful tool for constructing secure multi-party computation protocols. However, it remains open whether or not there exist efficient constructions of strongly multiplicative LSSS ...
Wang, Huaxiong   +9 more
core   +1 more source

Capturing the zero: a new class of zero-augmented distributions and multiplicative error processes [PDF]

open access: yes, 2010
We propose a novel approach to model serially dependent positive-valued variables which realize a non-trivial proportion of zero outcomes. This is a typical phenomenon in financial time series observed on high frequencies, such as cumulated trading ...
Hautsch, Nikolaus   +2 more
core  

Heights and multiplicative relations on algebraic varieties [PDF]

open access: yes, 2007
Points on a subvariety X of a semi-abelian variety A that are contained in a subgroup, let the subgroup be of finite rank or algebraic, are subject to severe restrictions arithmetical nature. Finiteness results for intersections of X with subgroups of
Habegger, Philipp
core   +1 more source

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