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Efficient and Compact Representations of Some Non-canonical Prefix-Free Codes
(Springer, 2016-09-21)
[Abstract] For many kinds of prefix-free codes there are efficient and compact alternatives to the traditional tree-based representation. Since these put the codes into canonical form, however, they can only be used when ...
Universal indexes for highly repetitive document collections
(Elsevier Ltd, 2016-11)
[Abstract] Indexing highly repetitive collections has become a relevant problem with the emergence of large repositories of versioned documents, among other applications. These collections may reach huge sizes, but are ...
Compact Trip Representation over Networks
(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 ...
Space/time-efficient RDF stores based on circular suffix sorting
(Springer Nature, 2023-03)
[Abstract]: The resource description framework (RDF) has gained popularity as a format for the standardized publication and exchange of information in the Web of Data. In this paper, we introduce RDFCSA, a compressed ...
Compressed and queryable self-indexes for RDF archives
(Springer Nature, 2023-08)
[Abstract]: RDF compression and querying are consolidated topics in the Web of Data, with a plethora of solutions to efficiently store and query static datasets. However, as RDF data changes along time, it becomes necessary ...
Revisiting Compact RDF Stores Based on k2-Trees
(IEEE Xplore, 2020-03)
[Abstract]: We present a new compact representation to efficiently store and query large RDF datasets in main memory. Our proposal, called BMatrix, is based on the k 2 -tree, a data structure devised to represent binary ...
An Efficient Representation of Enriched Temporal Trajectories
(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 ...
Towards a Compact Representation of Temporal Rasters
(Springer Nature, 2018-09)
[Abstract]: Big research efforts have been devoted to efficiently manage spatio-temporal data. However, most works focused on vectorial data, and much less, on raster data. This work presents a new representation for raster ...