fi(xi, xi−1, . . . , x1), for i = 1, . . . , n, where fi’s are from a fixed set Ops. – Most importantly, only xi is explicitly passed to the i-th function. The algorithm must store x1, . . . , xi−1 (or some functions thereof) in memory so it can access them when computing fi. – The idea is to arrange the values in some clever way (the data structure) in order to make computing the fi (and updat...

A shape invariant model for functions f1, . . . , fn specifies that each individual function fi can be related to a common shape function g through the relation fi(x) = aig(cix + di) + bi. We consider a mixture model that allows multiple shape functions g1, . . . , gK , where each fi is a shape invariant transformation of one of those gk. We derive an MCMC algorithm for fitting the model using ...

We consider the problem of collective decision-making from an arbitrary set of classifiers under Sugeno fuzzy integral (S-FI). We assume that classifiers are given, i.e., they cannot be modified towards their effective combination. Under this baseline, we propose a selection-combination strategy, which separates the whole process into two stages: the classifiers selection, to discover a subset ...

Diffused Expectation Maximisation (DEM) is a novel algorithm for image segmentation. The method models an image as a finite mixture, where each mixture component corresponds to a region class and uses a maximum likelihood approach to estimate the parameters of each class, via the expectation maximisation (EM) algorithm, coupled with anisotropic diffusion on classes, in order to account for the ...

<span lang="EN-GB">The recent trend in location-based services has led to a proliferation of studies indoor positioning technology. Wi-Fi</span><span lang="VI"> received signal strength </span><span lang="EN-US">indicator</span><span (RSSI) lang="EN-GB">Fingerprinting and pedestrian dead reckoning (PDR) are the two best representatives from both approac...

Owing to the heterogeneity of software and hardware in different types mobile terminals, received signal strength indication (RSSI) from same Wi-Fi access point (AP) varies indoor environments, which can affect positioning accuracy fingerprint methods. To solve this problem consider nonlinear characteristics propagation attenuation, we propose a whale optimisation algorithm-back-propagation neu...