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On the rate of convergence for the autocorrelation operator in functional autoregression

Publications associées (32)

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Autoregressive Modelling of Hilbert Envelopes for Wide-band Audio Coding

Petr Motlicek, Hynek Hermansky, Sriram Ganapathy

Frequency Domain Linear Prediction (FDLP) represents the technique for approximating temporal envelopes of a signal using autoregressive models. In this paper, we propose a wide-band audio coding system exploiting FDLP. Specifically, FDLP is applied on cri ...

2008

Autoregressive Modelling of Hilbert Envelopes for Wide-band Audio Coding

Petr Motlicek, Hynek Hermansky, Sriram Ganapathy

IDIAP2008

LP-TRAPs in all senses

Petr Motlicek

This report describes additional experiments with LP-TRAPs -- speech features derived from autoregressive model applied to approximate temporal evolution of speech spectra in critical band-sized frequency sub-bands. The importance of free parameters, such ...

IDIAP2007

On a stochastic version of the plenacoustic function

Martin Vetterli, Andrea Ridolfi, Luciano Sbaiz, Thibaut Ajdler

In this paper, we model a spatially varying channel where a source is moving along a random trajectory with respect to a fixed re- ceiver. The aim is to compute the power spectral density corre- sponding to the channel impulse response as a function of tem ...

2006

Hydrological forecasting model in Colombia: application to the Magdalena River

André Musy, Bettina Schaefli, Richard Metzger

The development of a hydrological forecasting model is conditioned by the available data collected in the entire hydrological catchment for which discharge has to be predicted. The forecast quality not only depends on the available historical data but also ...

2005

An efficient algorithm for real-time estimation and prediction of dynamic OD table

Michel Bierlaire, Frank Crittin

The problem of estimating and predicting Origin-Destination (OD) tables is known to be important and difficult. In the specific context of Intelligent Transportation Systems (ITS), the dynamic nature of the problem and the real-time requirements make it ev ...

2004

LP-TRAP: Linear predictive temporal patterns

Hynek Hermansky

Autoregressive modeling is applied for approximating the temporal evolution of spectral density in critical-band-sized sub-bands of a segment of speech signal. The generalized autocorrelation linear predictive technique allows for a compromise between fitt ...

IDIAP2004

LP-TRAP: Linear predictive temporal patterns

Hynek Hermansky

2004

Some Observations on Equation-Based Rate Control

Jean-Yves Le Boudec, Milan Vojnovic

We consider one aspect of the general problem of unicast equation based rate control in the Internet, which we formulate as follows. When a so called ``loss-event" occurs, a data source updates its sending rate by setting it to

f(\hat{p_n})

, where $\hat{ ...

2001

Using Polynomials to Forecast Univariate Time Series

Polynomial autoregressions have been most of the time discarded as being unrealistic. Indeed, for such processes to be stationary, strong assumptions on the parameters and on the noise are necessary. For example, the distribution of the latter has to have ...

1996

Some Observations on Equation-Based Rate Control

Jean-Yves Le Boudec, Milan Vojnovic

f(\hat{p_n})

, where $\hat{ ...

2001