نتایج جستجو برای: topological analysis

تعداد نتایج: 2882685  

In this paper we provide a common framework for different stratified $LM$-convergence spaces introduced recently. To this end, we slightly alter the definition of a stratified $LMN$-convergence tower space. We briefly discuss the categorical properties and show that the category of these spaces is a Cartesian closed and extensional topological category. We also study the relationship of our cat...

2016
Matthias Zeppelzauer Bartosz Zielinski Mateusz Juda Markus Seidl

We investigate topological descriptors for 3D surface analysis, i.e. the classification of surfaces according to their geometric fine structure. On a dataset of high-resolution 3D surface reconstructions we compute persistence diagrams for a 2D cubical filtration. In the next step we investigate different topological descriptors and measure their ability to discriminate structurally different 3...

2008
I. K. Darcy R. G. Scharein A. Stasiak

The action of various DNA topoisomerases frequently results in characteristic changes in DNA topology. Important information for understanding mechanistic details of action of these topoisomerases can be provided by investigating the knot types resulting from topoisomerase action on circular DNA forming a particular knot type. Depending on the topological bias of a given topoisomerase reaction,...

Journal: :Int. J. Machine Learning & Cybernetics 2014
Guoping Lin Jiye Liang Yuhua Qian

For further studying the theory of multigranulation rough sets (MGRS), we attempt to investigate a new theory on multigranulation rough sets from the topological view in this paper. We firstly explore multigranulation topological rough space and its topological properties by giving some new definitions and theorems. Then, topological granularity and topological entropy are proposed to character...

2017
Christoph Hofer Roland Kwitt Marc Niethammer Andreas Uhl

Inferring topological and geometrical information from data can offer an alternative perspective on machine learning problems. Methods from topological data analysis, e.g., persistent homology, enable us to obtain such information, typically in the form of summary representations of topological features. However, such topological signatures often come with an unusual structure (e.g., multisets ...

Journal: :iranian journal of fuzzy systems 2013
wen-hua yang sheng-gang li hu zhao

in this paper, the notion of fuzzy semicompactness degrees isintroduced in $l$-fuzzy topological spaces by means of theimplication operation of $l$. characterizations of fuzzysemicompactness degrees in $l$-fuzzy topological spaces  areobtained, and some properties of fuzzy semicompactness degrees areresearched.

2012
Tatjana Rubina

The biochemical networks can present the relationships between genes and gene products, proteins, metabolites and etc. The exploration of these networks helps to understand cellular processes, functions or properties of biological system. The growing size of interaction models of biological system building elements request determination of the most important topological measurements of given ta...

Journal: :journal of sciences, islamic republic of iran 2011
g.h. esslamzadeh

in this article we study two different generalizations of von neumann regularity, namely strong topological regularity and weak regularity, in the banach algebra context. we show that both are hereditary properties and under certain assumptions, weak regularity implies strong topological regularity. then we consider strong topological regularity of certain concrete algebras. moreover we obtain ...

Journal: :journal of linear and topological algebra (jlta) 0
r messaoud university of gafsa tunisia i basdouri university of gafsa tunisia. a missaoui university of gafsa tunisia

a. csaszar introduced and extensively studied the notion of generalized opensets. following csazar, we introduce a new notion hyperconnected. we study some speci cproperties about connected and hyperconnected in generalized topological spaces. finally, wecharacterize the connected component in generalized topological spaces.

Journal: :bulletin of the iranian mathematical society 2012
mehdi rahimi abdolhamid riazi

in this paper we introduce the concept of entropy operator for continuous systems of finite topological entropy. it is shown that it generates the kolmogorov entropy as a special case. if $phi$ is invertible then the entropy operator is bounded with the topological entropy of $phi$ as its norm.

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