منابع مشابه
Distance distributions in random networks
To account for stochastic properties when modeling connectivity in wireless mobile systems such as cellular, ad-hoc and sensor networks, spatial points processes are used. Since connectivity can be expressed as a function of distance between nodes distance distributions between points in spatial processes are of special importance. In this paper we survey those results available for distance di...
متن کاملMahalanobis’ Distance beyond Normal Distributions
Based on the reasoning expressed by Mahalanobis in his original article, the present article extends the Mahalanobis distance beyond the set of normal distributions. Sufficient conditions for existence and uniqueness are studied, and some properties derived. Since many statistical methods use the Mahalanobis distance as e vehicle, e.g. the method of least squares and the chi-square hypothesis t...
متن کاملdistance-ratios and co-occurrences distributions
is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. and global spatio-temporal entropy indices based on distance-ratios and co-occurrences When it comes to characterize the distribution of 'things' observed spatially and identified by their geometries and attributes, the Shannon entropy has been ...
متن کاملAsymptotic moments of near-neighbour distance distributions
Let C be a compact convex body in R m and consider a set of points selected at random from C according to some well-behaved sampling distribution. We obtain an asymptotic expression for the positive moments of the kth near-neighbour distance distribution as the number of points increases to in nity.
متن کاملUsing Learned Conditional Distributions as Edit Distance
In order to achieve pattern recognition tasks, we aim at learning an unbiased stochastic edit distance, in the form of a finite-state transducer, from a corpus of (input,output) pairs of strings. Contrary to the state of the art methods, we learn a transducer independently on the marginal probability distribution of the input strings. Such an unbiased way to proceed requires to optimize the par...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geographical Analysis
سال: 2010
ISSN: 0016-7363
DOI: 10.1111/j.1538-4632.1983.tb00778.x