Results 41 to 50 of about 75,217 (233)

Is Uniqueness Lost for Under-Sampled Continuous-Time Auto-Regressive Processes? [PDF]

IEEE Signal Processing Letters, 2012
We consider the problem of sampling continuous-time auto-regressive processes on a uniform grid. We investigate whether a given sampled process originates from a single continuous-time model, and address this uniqueness problem by introducing an alternative description of poles in the complex plane. We then utilize Kronecker's approximation theorem and
J.P. Ward, H. Kirshner, M. Unser
openaire   +1 more source

STRUCTURE AND EVOLUTION OF THE PROTOTYPE MAGNETIC CATACLYSMIC VARIABLE AM HER: CLUES FROM X-RAY (CHANDRA) AND OPTICAL POLARIMETRY AND PHOTOMETRY. FOUR-COMPONENT MODEL OF THE AUTO-CORRELATION FUNCTION

Odessa Astronomical Publications, 2017
In this paper, we present the results of a study of the variability of the prototype polar AM Her using one of the complementary mathematical methods.
I. L Andronov, V. Burwitz, K. Reinsch, H. Barwig, L. L. Chinarova, S. V. Kolesnikov, N. M. Shakhovskoy, V. Hambaryan, K. Beuermann, D. A. Yuhanov   +9 more
doaj   +1 more source

Innovation and economic growth in European Economic Area countries: The Granger causality approach

IIMB Management Review, 2019
The paper examines the long-run relationship between innovation and economic growth in the European Economic Area (EEA) countries for the period 1989–2014.
Rana Pratap Maradana, Rudra P. Pradhan, Saurav Dash, Danish B. Zaki, Kunal Gaurav, Manju Jayakumar, Ajoy K. Sarangi   +6 more
doaj   +1 more source

Appropriateness of correlated first-order auto-regressive processes for modeling daily temperature records [PDF]

Physica A: Statistical Mechanics and its Applications, 2006
The present study investigates linear and volatile (nonlinear) correlations of first-order autoregressive process with uncorrelated AR (1) and long-range correlated CAR (1) Gaussian innovations as a function of the process parameter ($ $). In the light of recent findings \cite{jano}, we discuss the choice of CAR (1) in modeling daily temperature ...
Nagarajan, Radhakrishnan, Govindan, R. B.   +1 more
openaire   +2 more sources

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

Molecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix, Daniel Samaga, Katharina Gehr, Benedek Dankó, Mohamed Schumann, Guido Drexler, Ahmed Alnatsha, Georg Beyer, Ujjwal Mahajan, Martin Selmansberger, Julia Mayerle, Claus Belka, Horst Zitzelsberger, Kirsten Lauber   +13 more
wiley   +1 more source

The Effective Management of Organic Waste Policy in Albania

Energies, 2020
Following a recycling or continuous recycling process, there is always waste with no material or market value that can be converted into energy or other fossil fuel substitutes.
Ionica Oncioiu, Sorinel Căpuşneanu, Dan Ioan Topor, Marius Petrescu, Anca-Gabriela Petrescu, Monica Ioana Toader   +5 more
doaj   +1 more source

A Comparison between Successive Estimate of TVAR(1) and TVAR(2) and the Estimate of a TVAR(3) Process

Engineering Proceedings, 2023
In time series analyses, the auto-regressive (AR) modelling of zero mean data is widely used for system identification, signal decorrelation, detection of outliers and forecasting.
Johannes Korte, Jan Martin Brockmann, Wolf-Dieter Schuh   +2 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Multifractal modeling of MPEG-4 video traffic

Tongxin xuebao, 2006
The correlation function and marginal distribution of multipliers at each layer were investigated in multifractal multiplicative process.Based on the lemmas gained,a new multifractal MPEG-4 video traffic model（PMFM,predict-able MFM）was proposed.By ...
WANG Sheng-hui, QIU Zheng-ding
doaj   +2 more sources

Prediction of weakly locally stationary processes by auto-regression

, 2016
In this contribution we introduce weakly locally stationary time series through the local approximation of the non-stationary covariance structure by a stationary one. This allows us to define autoregression coefficients in a non-stationary context, which, in the particular case of a locally stationary Time Varying Autoregressive (TVAR) process ...
Roueff, Françcois, Sánchez-Pérez, Andrés   +1 more
openaire   +3 more sources