Results 221 to 230 of about 202,726 (265)

Qualitative Spatial Configuration Search

Spatial Cognition & Computation, 2016
Current Geographic Information Systems (gis) lack, to a large extent, support for spatial searches in which a user wants to find a configuration of objects described in qualitative terms. At the database level, these searches can be supported by providing new spatial operators that can capture the semantics of the qualitative spatial relations used in ...
Paolo Fogliaroni   +2 more
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Spatial configurations for visual hyperacuity

Vision Research, 1977
Abstract The threshold for discrimination of relative position of two features in the fovea is lowest—a few sec of arc—when the two features are separated by 2–5′ arc. and is not significantly changed when the features are reduced to dots. Discrimination for lateral displacement, e.g. vernier acuity, is as good as for spatial intervals, e.g.
G, Westheimer, S P, McKee
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A spatial network approach to urban configurations [PDF]

open access: possibleCanadian Journal of Economics/Revue canadienne d'économique, 2011
Abstract We propose a spatial network approach to studying urban configurations by modelling explicitly knowledge transmission, aggregation and spillovers via links formed, as well as by allowing the population and the locality role (‘core’ versus ‘periphery’) in each location to be endogenously determined in equilibrium.
Fan-chin Kung, Ping Wang
openaire   +1 more source

A spatial configuration of occupations

Journal of Vocational Behavior, 1971
Abstract A mathematical analysis of the relationships among the six scales of Holland's Vocational Preference Inventory (VPI) yielded a representation of the six VPI scales in a “best-fitting” plane. The projection of VPI means of occupational groups onto that plane gave a spatial map of occupations in which the degree of relatedness was represented ...
Nancy S Cole   +2 more
openaire   +1 more source

Effects of spatial configurations on the resolution of spatial working memory

Attention, Perception, & Psychophysics, 2014
Recent research demonstrated that people represent spatial information configurally and preservation of configural cues at retrieval helps memory for spatial locations (Boduroğlu & Shah, Memory & Cognition, 37(8), 1120-1131 2009; Jiang, Olson, & Chun, Journal of Experimental Psychology: Learning, Memory, and Cognition, 26(3), 683-702 2000). The present
Aysu, Mutluturk, Aysecan, Boduroglu
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Finiteness of Spatial Central Configurations with Fixed Subconfigurations

SIAM Journal on Applied Algebra and Geometry, 2023
For a generalized \(N\)-body problem with a rational homogeneous central potential, by using some techniques of tropical geometry, the authors show that ``any fixed configuration of \(N-1\) masses in space with no three points collinear and no four points cocircular can be extended to a central configuration of \(N\) masses by adding a specified ...
Yiyang Deng, Marshall Hampton
openaire   +2 more sources

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