The patchiness of zooplankton biomass for two size classes (190-600 μm and < 600 μm) as well as several environmental variables were examined in a coastal reef lagoon (Guadeloupe, French West Indies) in order to determine the mechanisms that contribute to the generation and maintenance of multiscale spatial variability in this community. A new form of multiscale analysis, called PCNM, was used ...

The evaluation of queries specifying both content based conditions and spatial conditions on documents contents in Geographic Information Retrieval requires representing the vagueness and context dependency of spatial conditions and the personal user’s preferences. The Geo-Finder system [1] implements a Geo-Retrieval model that evaluates flexible spatial queries combined with content queries. T...

In this article, we study the modeling of interchannel dependency and its application into removing additive noise from corrupted color images. We start from an ad hoc spatially invariant linear interpolative model for characterizing color-difference and demonstrate how it can be jointly used with a variational intrachannel dependency model to suppress noise by alternating projections. Then we ...

We present a new approach to mine dependencies between streams of interval-based events that links two events if they occur in a similar manner, one being often followed by the other one in the data. The proposed technique is robust to temporal variability of events and determines the most appropriate time intervals whose validity is assessed by a χ test. TEDDY algorithm prunes the search space...

Recent studies on the avalanche risk in alpine settlements suggested a strong dependency of the development of risk on variations in damage potential. Based on these findings, analyses on probable maximum losses in avalanche-prone areas of the municipality of Davos (CH) were used as an indicator for the long-term development of values at risk. Even if the results were subject to significant unc...

Several physiological studies in cats and monkeys have reported that the spatial frequency (SF) tuning of visual neurons varies depending on the luminance contrast and size of stimulus. However, comparatively little is known about the effect of changing the stimulus contrast and size on SF tuning in human perception. In the present study, we investigated the effects of stimulus size and luminan...