Ladra, Susana; Paramá, José R.; Silva-Coira, Fernando(The Computer Journal, 2017)
Compact data structures are storage structures that combine a compressed represen-
tation of the data and the access mechanisms for retrieving individual data without the
need of decompressing from the beginning. The ...
Brisaboa, N. R.; Fariña, A.; Luaces, M. R.; Paramá, J. R.; Penabad, M. R.; Places, A. S.; Viqueira, J. R.(IT&T: Information, Tourism and Technology, 2002)
The current expansion of Internet makes it one of the most popular places to publish and search for almost any kind of information. In particular, touristic information, not only about tours or information about resources, ...
Pedreiro, Óscar; Silva Coira, F.; Places, Ángeles; Luaces, M. R.; Gonzalez Folgueira, L.(Journal of Web Engineering, 2019)
Distributing software as a service (SaaS) has become a major trend for
web-based systems. However, this software distribution model poses many
challenges. One of them is feature variability, that is, some features of ...
Claude, Francisco; Seco, Diego; Nicholson, Patrick K.(Information Processing and Management, 2014)
Let X = x1, x2, . . . , xn be a sequence of non-decreasing integer values. Stor-
ing a compressed representation of X that supports access and search is
a problem that occurs in many domains. The most common solution ...
In the field of algorithms and data structures analysis and design, most of the researchers
focus only on the space/time trade-off, and little attention has been paid to energy consumption. Moreover,
most of the efforts ...
We present a new compressed representation of free trajec
tories of moving objects. It combines a partial-sums-based structure that
retrieves in constant time the position of the object at any instant, with a
hierarchical ...
Galaktionov, Daniil; Rodríguez Luaces, Miguel; Places, Ángeles(Proc. of the 20th Pacific Asia Conference on Information Systems, 2016)
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 detected and classified
traffic signs. ...
Rodríguez Brisaboa, Nieves; De Bernardo, Guillermo; Gutiérrez, Gilberto; Ladra, Susana; Penabad, Miguel R.; A. Troncoso, Brunny(2015 Data Compression Conference, 2015)
k2-trees have been proved successful to represent in a very compact way different
kinds of binary relations, such as web graphs, RDFs or raster data. In order to be a
fully functional succinct representation for these ...
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 formed
mostly ...
In the last decade the availability of on-line resources, and also the number of users accessing those
resources, have grown exponentially. The information retrieval process, which aims at the improvement
of the access ...
Cortiñas, Alejandro; Rodríguez Luaces, Miguel; Pereira, Óscar; Varela-Rodeiro, Tirso(Proc.16th Int. Symposium Web and Wireless Geographical Information Systems, 2018)
In this paper we present the architecture of a system to store,
query and visualize on the web large datasets of geographic information.
The architecture includes a component to simulate a large number of
drivers that ...