We present some result about phase separation in coupled map lattices with additive noise. We show that additive noise acts as an ordering agent in this class of systems. In particular, in the weak coupling region, a suitable quantity of noise leads to complete ordering. Extrapolating our results at small coupling, we deduce that this phenomenon could take place also in the limit of zero coupli...

Many cortical maps are found in biological organisms. In these maps, related units tend to be collected close to each other, and important inputs typically have a magniied representation on the map. We consider an interpretation of these structures as maps of parallel information-bearing channels, rather than winner-take-all maps such as the Kohonen self-organizing map (SOM). By considering the...

The role of arterial baroreceptors in controlling arterial pressure (AP) variability through changes in sympathetic nerve activity was examined in conscious rats. AP and renal sympathetic nerve activity (RSNA) were measured continuously during 1-h periods in freely behaving rats that had been subjected to sinoaortic baroreceptor denervation (SAD) or a sham operation 2 wk before study (n = 10 in...

We present results from ambient noise tomography applied to temporary seismological stations in the easternmost part of the Alps and their transition to the adjacent tectonic provinces (Vienna Basin, Bohemian Massif, Southern Alps, Dinarides). By turning each station into a virtual source, we recover surface waves in the frequency range between 0.1 and 0.6 Hz, which are sensitive to depths of a...

A technique for optimising the efficiency of sub-map method for large-scale simultaneous localisation and mapping (SLAM) is proposed. It optimises the benefits of the sub-map technique to improve the accuracy and consistency of an Extended Kalman Filter (EKF) based SLAM. Error models were developed and engaged to investigate some of the outstanding issues in employing sub-map technique in SLAM....

A spatially extended Lotka-Volterra system of two competing species in the presence of two correlated noise sources is analyzed: (i) an external multiplicative time correlated noise, which mimics the interaction between the system and the environment; (ii) a dichotomous stochastic process, whose jump rate is a periodic function, which represents the interaction parameter between the species. Th...

We propose a novel approach to problem of temporal consistency. To tackle temporal inconsistency we propose to eliminate its cause. Depth map fluctuations are caused by noise, mainly temporal. We propose to employ noise reduction on video before depth estimation. Each view of a multi-view video sequence, is independently denoised in time and then feed to a depth estimation algorithm (Fig. 1). A...

This paper proposes a new method, using neural networks, of adapting phone HMMs to noise added speech. The network is designed to map clean speech HMMs to noise-adapted HMMs using inputs of clean speech phone HMMs, noise HMMs and signal-to-noise ratios (S/N). The network is trained to minimize the mean squared error between the output HMMs and the target noise-adapted HMMs. Noisy broadcast-news...