نتایج جستجو برای: neighbourhood features
تعداد نتایج: 533276 فیلتر نتایج به سال:
Spatial co-location patterns represents the subset of Boolean spatial features (e.g. Frontage roads, freeways) whose instances are often located in close geographic proximity. For instance, stagnant water founts and west Nile ailments are often co-located. The co-location pattern can be defined as an undirected connected graph in which every node represents a feature and every single edge denot...
The multimodal neighbourhood signature (MNS) method has given acceptable results both for the colour-based image retrieval and the object recognition task. Local colour content is concisely represented by invariant features computed from neighbourhoods with multimodal colour density
The texture descriptors derived from 1-D DFT (Discrete Fourier Transform) of the pixel values of a local neighbourhood have been shown to perform better than the methods based on wavelets for image retrieval and recognition. These DFT-based texture descriptors were extracted from rectangular or circular neighbourhoods. This paper compares the texture descriptors extracted from rectangular and t...
One of the most critical features for applying local search to timetabling problems is the definition of the neighbourhood structure. In fact, for most common timetabling problems, there is more than one neighbourhood structure that is sufficiently natural and intuitive to deserve investigation. The reason for considering combination of diverse neighbourhood is related to the diversification of...
The neighbourhood is recognized as an important unit of analysis in research on the relation between obesogenic environments and development of obesity. One important challenge is to define the limits of the residential neighbourhood, as perceived by study participants themselves, in order to improve our understanding of the interaction between contextual features and patterns of obesity. An in...
Close Neighbours Matter: Neighbourhood Effects on Early Performance at School Children’s outcomes are strongly correlated with those of their neighbours. The extent to which this is causal is the subject of an extensive literature. An identification problem exists because people with similar characteristics are observed to live in close proximity. Another major difficulty is that neighbourhoods...
Pattern formation in semiconductor heterostructures is studied on the basis of a spatially two{dimensional model of reaction{diiusion type. In particular, we investigate the neighbourhood of a codimension{two Turing{Hopf instability by analytical methods. Amplitude equations are derived which predict the absence of mixed modes but extended ranges of bistability between homogeneous oscillatory s...
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