منابع مشابه
On Spectral Graph Drawing
The spectral approach for graph visualization computes the layout of a graph using certain eigenvectors of related matrices. Some important advantages of this approach are an ability to compute optimal layouts (according to specific requirements) and a very rapid computation time. In this paper we explore spectral visualization techniques and study their properties. We present a novel view of t...
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Let G be a 2-connected graph with a toroidal rotation system given. An algorithm for constructing a straight line drawing with no crossings on a rectangular representation of the torus is presented. It is based on Read’s algorithm for constructing a planar layout of a 2-connected graph with a planar rotation system. It is proved that the method always works. The complexity of the algorithm is l...
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We present a system for the visualization of information modeled in terms of a graph on a smartphone. First, we show the adopted visualization paradigm, that allows the user to navigate the graph using a focus-based approach. Second, we tackle the algorithmic challenges posed by the new visualization paradigm, introducing and experimenting effective heuristics. Finally, we show several customiz...
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Recently, some advanced algorithms for straight line drawings of planar graphs have been introduced. However, these algorithms produce drawings with many small angles. Their drawings are not aesthetically nice. Our goal is to resolve these problems by a beautifier. We consider the angles of planar straight line drawings. In a first phase we compute maximal angles by repeatedly solving a linear ...
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The paper is an exercise in descriptive ontology, with specific applications to problems in the geographical sphere. It presents a general typology of spatial boundaries, based in particular on an opposition between bona fide or physical boundaries on the one hand, and fiat or human-demarcation-induced boundaries on the other. Cross-cutting this opposition are further oppositions in the realm o...
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ژورنال
عنوان ژورنال: Clinical Chemistry
سال: 2017
ISSN: 0009-9147,1530-8561
DOI: 10.1373/clinchem.2016.266809