Search results for " graph"

Pauls rectifiable and purely Pauls unrectifiable smooth hypersurfaces

2020

This paper is related to the problem of finding a good notion of rectifiability in sub-Riemannian geometry. In particular, we study which kind of results can be expected for smooth hypersurfaces in Carnot groups. Our main contribution will be a consequence of the following result: there exists a -hypersurface without characteristic points that has uncountably many pairwise non-isomorphic tangent groups on every positive-measure subset. The example is found in a Carnot group of topological dimension 8, it has Hausdorff dimension 12 and so we use on it the Hausdorff measure . As a consequence, we show that any Lipschitz map defined on a subset of a Carnot group of Hausdorff dimension 12, with…

Creative interpretation in web design experience

2017

Insight into how people mentally represent, and thus, make sense of visual designs is the key to understanding how people interact with technological devices. This paper presents a study in which participants were asked to write their interpretations of two webpage design examples, based on what they thought they would say and what would remain as a thought. The data comprised 80 3E templates (N = 40), a template allowing participants to express experiences through writing and drawing. Inductive data analysis through a phenomenological lens revealed that supposed mental and verbal representations concentrated on the following design properties: colors, themes, interface layout and quality, …

Motives for reflections. Part one

2013

Facsimile of manuscript from the archive of Emanuels Grinbergs, University of Latvia. The article (in three pieces of manuscripts), written in Russian, contains some reflections on graph theory. It may be written in 1973.

Motives for reflections Addendum to part one

2013

The article (in three pieces of manuscripts), written in Russian, contains some reflections on graph theory. It may be written in 1973.

On threeconnected graphs with unique Hamiltonian cycle = О трехсвязный графах ...

2013

Geodesic graphs

2013

In the article, written in Russian, geodesic graphs, graphs with unique shortest path between every two vertices, are considered. Geodesic graphs are trees, odd cycles, and nontrivial example, the graph of Petersen. The article is dated 21.11.74.

Motives for reflections. Part two

2013

E. Gringergs archive manuscripts may be found in the Library of the University of Latvia under https://lira.lanet.lv/F/98QNED45E7J5HDUHLY51HV43QNRX97XCQJPHQ9S6L7HX4FABFB-10883?func=find-b&request=E.Grinberga&find_code=TIT&x=32&y=13&filter_code_1=WLN&filter_request_1=&filter_code_2=WYR&filter_request_2=&filter_code_3=WYR&filter_request_3=&filter_code_4=WFM&filter_request_4=

WebTribe: Implicit Community Clustering by Semantic Analysis

2010

International audience; Since the advent of Web 2.0, any user becomes a content provider through personal websites, posts on wikis and forums, recommendations, annotations, etc. In this paper, we propose a method to analyze the interests of users based on their publishing activities, by positioning them into a semantic graph. We describe the WebTribe system that allows to extract topic information from collaborative websites and to query the resulting clusters of users.

Tradition and virtuality: The Caltagirone staircase

2006

OntoSTEP: Enriching product model data using ontologies

2012

The representation and management of product lifecycle information is critical to any manufacturing organization. Different modeling languages are used at different lifecycle stages, for example STEP's EXPRESS may be used at a detailed design stage, while UML may be used for initial design stages. It is necessary to consolidate product information created using these different languages to build a coherent knowledge base. In this paper, we present an approach to enable the translation of STEP schema and its instances to Ontology Web Language (OWL). This gives a model-which we call OntoSTEP-that can easily be integrated with any OWL ontologies to create a semantically rich model. As an examp…