Listar por autor "Brisaboa, Nieves R."

Mostrando ítems 1-20 de 36

    • 3DGraCT: A Grammar-Based Compressed Representation of 3D Trajectories 

      Brisaboa, Nieves R.; Gómez-Brandón, Adrián; Martínez-Prieto, Miguel A.; Paramá, José R. (Springer, 2018)
      [Abstract]: Much research has been published about trajectory management on the ground or at the sea, but compression or indexing of flight trajectories have usually been less explored. However, air traffic management is ...

    • A novel architecture for the detection, exploitation and historical archival of indoor semantic trajectories: A case study on nursing homes 

      Varela Rodeiro, Tirso; Gutiérrez-Asorey, Pablo; Brisaboa, Nieves R.; Penabad, Miguel R.; Cortiñas, Alejandro (Emerald, 2024)
      [Abstract]: We introduce an automatic system, based on indoor positioning techniques, aimed at improving the quality of service of a nursing home. It tracks the location of both residents and caregivers and automatically ...

    • A succinct data structure for self-indexing ternary relations 

      Álvarez García, Sandra; Bernardo, Guillermo de; Brisaboa, Nieves R.; Navarro, Gonzalo (Elsevier BV, 2016-10-27)
      [Abstract] The representation of binary relations has been intensively studied and many different theoretical and practical representations have been proposed to answer the usual queries in multiple domains. However, ternary ...

    • Aggregated 2D range queries on clustered points 

      Bernardo, Guillermo de; Konow, Bernardo; Navarro, Gonzalo; Brisaboa, Nieves R.; Seco, Diego (Elsevier Ltd, 2016-09)
      [Abstract] Efficient processing of aggregated range queries on two-dimensional grids is a common requirement in information retrieval and data mining systems, for example in Geographic Information Systems and OLAP cubes. ...

    • An Efficient Representation of Enriched Temporal Trajectories 

      Brisaboa, Nieves R.; Fariña, Antonio; Otero-González, Diego; Varela Rodeiro, Tirso (SciTePress, 2021)
      [Abstract] We present a novel representation of enriched trajectories of a mobile workforce management system. In this system, employees are tracked during their working day and both their routes and the tasks performed ...

    • An index for moving objects with constant-time access to their compressed trajectories 

      Brisaboa, Nieves R.; Gagie, Travis; Gómez-Brandón, Adrián; Navarro, Gonzalo; Paramá, José R. (Taylor & Francis, 2021)
      [Abstract]: As the number of vehicles and devices equipped with GPS technology has grown explosively, an urgent need has arisen for time- and space-efficient data structures to represent their trajectories. The most commonly ...

    • Las bibliotecas digitales y la sociedad de la información 

      Brisaboa, Nieves R.; Fernández Pérez-Sanjulián, Carme (Ediciones de la Universidad de Castilla-La Mancha, 2004)
      [Resumo]: Neste traballo preséntase non só unha introdución ás tecnoloxías subxacentes ás Bibliotecas Dixitais, senón tamén unha serie de reflexións sobre o papel que este tipo de bibliotecas pode chegar a xogar na Sociedade ...

    • Classic distance join queries using compact data structures 

      Bernardo, Guillermo de; Penabad, Miguel R.; Corral, Antonio; Brisaboa, Nieves R. (Elsevier, 2024-07)
      [Abstract]: Distance-based Join Queries (DJQs) have multiple applications in spatial databases, Geographic Information Systems, and other areas. The K Closest Pairs Query (KCPQ) and the 𝜀� Distance Join Query (𝜀� DJQ) ...

    • Compact Representations of Event Sequences 

      Brisaboa, Nieves R.; Bernardo, Guillermo de; Navarro, Gonzalo; Seco, Diego; Varela Rodeiro, Tirso (IEEE, 2018-03)
      [Abstract]: We introduce a new technique for the efficient management of large sequences of multi-dimensional data, which takes advantage of regularities that arise in real-world datasets and supports different types of ...

    • Compact Trip Representation over Networks 

      Brisaboa, Nieves R.; Fariña, Antonio; Galaktionov, Daniil; Rodríguez, M. Andrea (Springer, 2016-09-21)
      [Abstract] We present a new Compact Trip Representation ( CTRCTR ) that allows us to manage users’ trips (moving objects) over networks. These could be public transportation networks (buses, subway, trains, and so on) where ...

    • Compacting Massive Public Transport Data 

      Letelier, Benjamin; Brisaboa, Nieves R.; Gutiérrez-Asorey, Pablo; Paramá, José R.; Varela Rodeiro, Tirso (Springer Nature, 2023-09-20)
      [Abstract]: In this work, we present a compact method for storing and indexing users’ trips across transport networks. This research is part of a larger project focused on providing transportation managers with the tools ...

    • Diseño de una base de datos para la literatura emblemática 

      Brisaboa, Nieves R. (Universidade da Coruña, 1996)

    • Dv2v: A Dynamic Variable-to-Variable Compressor 

      Brisaboa, Nieves R.; Fariña, Antonio; Gómez-Brandón, Adrián; Navarro, Gonzalo; Varela Rodeiro, Tirso (IEEE, 2019-03)
      [Abstract]: We present D-v2v, a new dynamic (one-pass) variable-to-variable compressor. Variable-to-variable compression aims at using a modeler that gathers variable-length input symbols and a variable-length statistical ...

    • Efficient Database Evolution in Digital Library Reengineering 

      Ramos-Vidal, Delfina; Brisaboa, Nieves R. (Universidade da Coruña, Servizo de Publicacións, 2023)
      [Abstract] With the advancement of internet applications, extensive information systems were created to effectively manage and provide easy access to documents, which coincided with a global initiative to convert physical ...

    • Efficient Multiscale Representations for Geographical Objects 

      Brisaboa, Nieves R.; Cortiñas, Alejandro; Gutiérrez-Asorey, Pablo; Luaces, Miguel; Varela Rodeiro, Tirso (Springer Nature, 2022-05-19)
      [Abstract]: Maps need different representations of the same cartographic object in order to display it at several scale levels. When a user zooms in, the object should depict every detail as it is the main focus on the ...

    • Efficient Representation of Multidimensional Data over Hierarchical Domains 

      Brisaboa, Nieves R.; Cerdeira-Pena, Ana; López López, Narciso; Navarro, Gonzalo; Penabad, Miguel R.; Silva-Coira, Fernando (Springer, 2016-09-21)
      [Abstract] 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 different node in the hierarchy of ...

    • Extending general compact querieable representations to GIS applications 

      Brisaboa, Nieves R.; Cerdeira-Pena, Ana; Bernardo, Guillermo de; Navarro, Gonzalo; Pedreira, Óscar (Elsevier, 2020-01)
      [Abstract]: The raster model is commonly used for the representation of images in many domains, and is especially useful in Geographic Information Systems (GIS) to store information about continuous variables of the space ...

    • GraCT: A Grammar Based Compressed Representation of Trajectories 

      Brisaboa, Nieves R.; Gómez-Brandón, Adrián; Navarro, Gonzalo; Paramá, José R. (Springer, 2016-09-21)
      [Abstract] 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 k2k2 -tree to store the absolute ...

    • GraCT: A Grammar-based Compressed Index for Trajectory Data 

      Brisaboa, Nieves R.; Gómez-Brandón, Adrián; Navarro, Gonzalo; Paramá, José R. (Elsevier Ltd, 2019)
      [Abstract]: We introduce a compressed data structure for the storage of free trajectories of moving objects that efficiently supports various spatio-temporal queries. Our structure, dubbed GraCT, stores the absolute positions ...

    • Grammar compressed sequences with rank/select support 

      Ordóñez, Alberto; Navarro, Gonzalo; Brisaboa, Nieves R. (Elsevier BV, 2016-10-14)
      [Abstract] Sequence representations supporting not only direct access to their symbols, but also rank/select operations, are a fundamental building block in many compressed data structures. Several recent applications need ...