In this paper we deal with one of the fundamental problems for mobile robots, namely their ability to produce accurate representations of their environment. We propose an office mapping algorithm that iteratively alternates between a Kalman smoother based localization step and a map features recalculation step. Moreover, a hybrid algorithm with global localization capabilities is employed in th...

This paper presents N binary hysteresis relaxation oscillators connected by the Intermittently Coupled Capacitors. The network exhibits various interesting synchronous phenomena. As a powerful analysis tool, we derive a hybrid return map which has one real and N binary states. Using this map, the stability of the periodic synchronization can be analyzed simply by the binary states: it is not ne...

Abstract. Soil thickness plays a central role in the interactions between vegetation, soils, and topography, where it controls retention release of water, carbon, nitrogen, metals. However, mapping soil thickness, here defined as mobile regolith layer, at high spatial resolution remains challenging. Here, we develop hybrid model that combines process-based empirical relationships to estimate he...

This paper presents a hybrid methodology of automatically constructing fuzzy cognitive map (FCM). The proposed method is based on immune algorithm to learn the connection matrix of FCM. In the algorithm, the DNA coding method is used, and in order to utilize the experts’ knowledge and the feature of system, they are used as “vaccine”. Finally, an illustrative example is provided. The results su...

Materials and Methods Attenuation map of hybrid F-18 FDG PET/MR mammography in 38 patients diagnosed with invasive breast carcinoma were retrospectively inspected for artifacts. The artifacts were subdivided into 2 groups with minor (group A) and major artifacts (group B) on the basis of their severity. The impact of μ-map artifacts on PET interpretation was evaluated qualitatively via visual a...