Topological Mapping
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. A mobile robot autonomous navigation integrated system / Um sistema integrado para navegação autônoma de robôs móveis
Environment mapping has been a great challenge for many researchers in the autonomous navigation area. There are two important paradigms for mapping, metric and topological mapping. Several mapping methods that combine the advantages of each paradigm have been proposed. This project consists to the adaptation and extension of a mobile robots autonomous navig
Publicado em: 2010
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2. Appearance-based odometry and mapping with feature descriptors for underwater robots
The use of Autonomous Underwater Vehicles (AUVs) for underwater tasks is a promising robotic field. These robots can carry visual inspection cameras. Besides serving the activities of inspection and mapping, the captured images can also be used to aid navigation and localization of the robots. Visual odometry is the process of determining the position and or
Journal of the Brazilian Computer Society. Publicado em: 2009-09
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3. Análise de agrupamentos baseada na topologia dos dados e em mapas auto-organizáveis. / Data clustering based on data topology and self organizing-maps.
More than ever, in environment of large decision making, the analysis of data stored massively becomes a real need in almost all knowledge areas. The data analyzing process covers the performing of different tasks that can be executed for different techniques and strategies as the data clustering analysis. This research is focused on the analysis task of dat
Publicado em: 2008
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4. Campos tensoriais de matÃria abelianos e nÃo-abelianos: geraÃÃo de massa e dualidade. / Abelian and non-abelian tensor matter fields: Mass generation and duality
In this Thesis we analyze the generation of mass to the antisymmetric tensor matter field in a non-Abelian model and the mapping of the antisymmetric matter field to the antisymmetric tensor gauge field in the Abelian case. For the mass generation, we use two different mechanisms. The first one is the spontaneous symmetry breaking, where we use scalar fields
Publicado em: 2007
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5. Gestão municipal com o uso de geotecnologias / Municipal administration with use of geothecnologies
This paper has the purpose of presenting procedures for planning and implementing a Municipal Geographic Information System (GIS) with an emphasis on the precision, exactness, reliability, safety, and interoperability of the data and geographical information. The methodologies and techniques for elaborating a Digital Cartographic Base with a topological stru
Publicado em: 2007
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6. Mapeamento de ambientes estruturados com extração de informações geométricas através de dados sensoriais
The objective of this thesis is proposes a method for a mobile robot to build a hybrid map of an indoor, semi-structured environment. The topological part of this map deals with spatial relationships among rooms and corridors. It is a topology-based map, where the edges of the graph are rooms or corridors, and each link between two distinct edges rep
Publicado em: 2006
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7. Set-valued functions / Funções ponto a conjunto
We study a mapping called a set-valued map which associates with each point of a metric space a non empty subset of another metric space. In the case of single-valued maps, contin-uous functions are characterized by two equivalent properties: one in terms of neighborhood and other in terms of sequences. These two properties can be adapted to the case of set-
Publicado em: 2005
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8. INTELLIGENT ASSISTANCE FOR KDD-PROCESS ORIENTATION / ASSISTÊNCIA INTELIGENTE À ORIENTAÇÃO DO PROCESSO DE DESCOBERTA DE CONHECIMENTO EM BASES DE DADOS
Generally speaking, such aspects involve difficulties in perceiving innumerable facts whose origin and levels of detail are highly diverse and diffused, in adequately interpreting these facts, in dynamically conjugating such interpretations, and in deciding which actions must be performed in order to obtain good results. How are the objectives of the process
Publicado em: 2003
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9. ON CLOSED EXTENSIONS OF FUNCTIONS*
G. T. Whyburn has shown that every mapping (by a mapping we will always mean a continuous function) of a topological space into a Hausdorff space is the restriction of a compact mapping with the same range (Trans. Am. Math. Soc., 74, 344-350 (1953)). H. Bauer has proved that every mapping between locally compact Hausdorff spaces can be extended in a topologi
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10. TOPOLOGICAL MAPPING OF ORGANIC MOLECULES*
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11. Topological and percolation properties of potential mapping with glueing
The potential movement of particles forms a continuous mapping of the Lagrangian space on the space of Eulerian coordinates of particles. The force-free inertial movement with random smooth initial velocity field is considered. The condition of particles on caustics glued together to form singularities leads to a peculiar structure with localized regions of
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12. F-Deformations and F-Tractions
Let Mn be a compact, connected topological manifold and F a continuous mapping of Mn into R that is “topologically nondegenerate” in the sense of (Morse, M. (1959) J. d'Analyse Math., 7, 189-208). Let c be a value of F and set Fc = {p∈Mn|F(p) ≤ c}. The topological critical points of F on Fc are finite in number and can be related to the invariants of