منابع مشابه
Histograms of Infinitesimal Neighbourhoods
Image analysis methods that use histograms defined over non-zero-sized local neighbourhoods have been proposed [1-4]. To better understand such methods, one can study the histograms of infinitesimal neighbourhoods. In this paper we show how the properties of such histograms can be derived through limit arguments. We show that in many cases the properties of these histograms are given by simple ...
متن کاملNeighbourhoods of Univalent Functions
The main result shows that a small perturbation of a univalent function is again a univalent function, hence a univalent function has a neighbourhood consisting entirely of univalent functions. For the particular choice of a linear function in the hypothesis of the main theorem, we obtain a corollary which is equivalent to the classical Noshiro–Warschawski–Wolff univalence criterion. We also pr...
متن کاملSome Results on Topological Neighbourhoods
Full proofs of results announced here are to be found in [lO]. We consider the problem of classifying germs of neighbourhoods of locally flat topological submanifolds. Let M be a fixed topological manifold. An r-neighbourhood of M is a pair (i, N) where N is a topological manifold of dimension n+r and i:M—*N a locally flat embedding satisfying i^ÇdN) —dM. Denote the set of germs of r-neighbourh...
متن کاملDegrees, Neighbourhoods, and Closure Operations
Closure theorems in graph theory are of the following type: Let G be a graph, P a graph theoretic property, and let u and v be two non-adjacent vertices of G. If condition c(u, v) holds, then G has property P if and only if G+ uv has P. We discuss several such results of the above type where the condition c(u, v) refers to neighbourhood properties of u and v.
متن کاملConcept Neighbourhoods in Lexical Databases
This paper discusses results from an experimental study of concept neighbourhoods in WordNet and Roget’s Thesaurus. The general aim of this research is to determine ways in which neighbourhood lattices can be derived in real time from a lexical database and displayed on the web. In order to be readable the lattices must not be too large, not contain overlapping concepts or labels and must be ca...
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ژورنال
عنوان ژورنال: China Perspectives
سال: 2008
ISSN: 2070-3449,1996-4617
DOI: 10.4000/chinaperspectives.4739