Recently, community ecologists are focusing on the relative importance of local environmental factors and proxies to dispersal limitation to explain spatial variation in community structure. Albeit less explored, temporal processes may also be important in explaining species composition variation in metacommunities occupying dynamic systems. We aimed to evaluate the relative role of environment...

This paper introduces a new qualitative spatial reasoning formalism, called Interval Occlusion Calculus (IOC), that takes into account multiple (distinct) viewpoints of a scene. This formalism extends Allen’s Interval Algebra by including an interval-based definition for spatial occlusion. We show how the IOC can be applied to share the information obtained by various (distinct) views of a scene.

Molecules being often described using a graph representation, graph kernels provide an interesting framework which allows to combine machine learning and graph theory in order to predict molecule’s properties. However, some of these properties are induced both by the covalent bound relationships between atoms and by constraints on the relative positioning of these atoms. Graph kernels based sol...

the environmental and ecological issues in the flow-reduced river reach are very serious and arereceiving increasingly attention. in this study, we investigate the temporal and spatial changes in δ13c and δ15n of periphyton and isotopic relationship between periphyton and the endangered fish (ayu, plecoglossusaltivelis) in a flow-reduced river reach in japan. much of the spatial and temporal va...

We summarize results of a suite of calibration measurements conducted to assess the usability of a prototype Samsung OLED TV panel in visual psychophysics experiments. Specifically, we characterize the panel’s adherence to the principles of (a) linear channel summation, (b) spatial independence, (c) chromatic stability, and (d) temporal stability. We found that, although the panel has desired p...

Surveillance systems are commonly used to monitor and track individuals in a cluttered environment. Face images that are captured using such a system often suffer from poor resolution and consequently degrade the performance of any face recognition system which may be applied to these images. Super-resolution (SR) is one avenue for overcoming this limitation, however, many existing SR technique...

Although niche-based and stochastic processes, including dispersal limitation and demographic stochasticity, can each contribute to community assembly, it is difficult to quantify the relative importance of each process in natural vegetation. Here, we extend Shipley's maxent model (Community Assembly by Trait Selection, CATS) for the prediction of relative abundances to incorporate both trait-b...