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- Universidade de Santiago de CompostelaES166 papers
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- Universitat de BarcelonaES143 papers
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- University of GroningenNL142 papers
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- Rutherford Appleton LaboratoryGB138 papers
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- University of BonnDE133 papers
23 papers · 1 filter
Cayley Transform on Stiefel manifolds
Enrique Macías-Virgós, María José Pereira-Sáez, Daniel Tanré
We define a Cayley transform on Stiefel manifolds. Applications to the Lusternik-Schnirelmann category and optimisation problems are presented.
Compact Trip Representation over Networks
Nieves R. Brisaboa, Antonio Fariña, Daniil Galaktionov +1
We present a new Compact Trip Representation (CTR) that allows us to manage users' trips (moving objects) over networks. These could be public transportation networks (buses, subwa…
Efficient Representation of Multidimensional Data over Hierarchical Domains
Nieves R. Brisaboa, Ana Cerdeira-Pena, Narciso López-López +3
We consider the problem of representing multidimensional data where the domain of each dimension is organized hierarchically, and the queries require summary information at a diffe…
GraCT: A Grammar based Compressed representation of Trajectories
Nieves R. Brisaboa, Adrián Gómez-Brandón, Gonzalo Navarro +1
We present a compressed data structure to store free trajectories of moving objects (ships over the sea, for example) allowing spatio-temporal queries. Our method, GraCT, uses a $k…
Models of Elastic Shells in Contact with a Rigid Foundation: An Asymptotic Approach
Á. Rodríguez-Arós
We consider a family of linearly elastic shells with thickness (where is a small parameter). The shells are clamped along a portion of their lateral fa…
Navigational Rule Derivation: An algorithm to determine the effect of traffic signs on road networks
Daniil Galaktionov, Miguel R. Luaces, Ángeles S. Places
In this paper we present an algorithm to build a road network map enriched with traffic rules such as one-way streets and forbidden turns, based on the interpretation of already de…