Exploració per tema "Informàtica--Matemàtica"
Ara es mostren els items 1-20 de 33
-
A data science approach for spatiotemporal modelling of low and resident air pollution in Madrid (Spain): implications for epidemiological studies
(2019-05-01)
Article
Accés obertModel developments to assess different air pollution exposures within cities are still a key challenge in environmental epidemiology. Background air pollution is a long-term resident and low-level concentration pollution ... -
A multi-attribute group decision model based on unbalanced and multi-granular linguistic information: an application to assess entrepreneurial competencies in secondary schools
(2021-11-01)
Article
Accés restringit per acord de confidencialitatAdvances in multi-attribute group decision making require the development of structures flexible enough to deal with unbalanced and multi-granular linguistic information. New distances between linguistic terms are needed ... -
A new meta-module design for efficient reconfiguration of modular robots
(Springer Nature, 2021-05-01)
Article
Accés obertWe propose a new meta-module design for two important classes of modular robots. The new metamodule is three-dimensional, robust and compact, improving on the previously proposed one. It applies to socalled “edge-hinged” ... -
A non-oscillatory face-centred finite volume method for compressible flows
(Elsevier, 2022-03-15)
Article
Accés obertThis work presents the face-centred finite volume (FCFV) paradigm for the simulation of compressible flows. The FCFV method defines the unknowns at the face barycentre and uses a hybridisation procedure to eliminate all ... -
A note on flips in diagonal rectangulations
(Chapman & Hall/CRC, 2018-11-09)
Article
Accés obertRectangulations are partitions of a square into axis-aligned rectangles. A number of results provide bijections between combinatorial equivalence classes of rectangulations and families of pattern-avoiding permutations. ... -
A study of the threshold selection in the Linear Threshold Rank for random social networks
(Universitat Politècnica de Catalunya, 2020-07)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorAn influence network is a directed graph with edge weights and node thresholds. Influence spreads starting from X=S. When the sum of the weights of the incoming arcs from X overpasses a node threshold it is added to X. The ... -
A traffic simulation tool for assessing smart city policies (CitScale)
(2019-09-28)
Article
Accés obertOver the last century, cities have developed as a function of increased usage of automobiles as the standard transport mode. The number of cars increased along with the population as highways and parking spots became ... -
Bounded expansion in models of webgraphs
(2007-10-02)
Article
Accés obertWe study the bounded expansion of several models of web graphs. We show that various deterministic graph models for large complex networks have constant bounded expansion.We study two random models of webgraphs, showing ... -
Comunitats en xarxes complexes: detecció i centralitat
(Universitat Politècnica de Catalunya, 2017-07)
Treball Final de Grau
Accés obertEn aquest treball estudiem l'estructura de comunitats en xarxes complexes. S'anomenen xarxes complexes als grafs construïts a partir de dades empíriques complint una sèrie de propietats, i s'entén per comunitat en un xarxa ... -
Empowering teachers' self assessment of their own practice on student's oral skills: EVALOE decision support system
(Scitepress, 2018)
Text en actes de congrés
Accés restringit per política de l'editorialSchool is an essential context that contributes to children's communicative competence. Decision Support Systems (DSS) are tools that can help teachers to assess their own practice and to make decisions to improve it (Gregg, ... -
Encapsulated PGD algebraic toolbox operating with high-dimensional data
(2019-11-28)
Article
Accés obertIn its original conception, proper generalized decomposition (PGD) provides explicit parametric solutions, denoted as computational vademecums or digital abacuses, to parametric boundary value problems. The PGD approach ... -
Extraction of threshold functions from formulas in propositional logic
(Universitat Politècnica de Catalunya, 2017-01)
Treball Final de Grau
Accés restringit per decisió de l'autorGiven a formula in propositional logic F in some presentation (BDD, ROBDD, truth table), our aim is to find a threshold function T that is a logical consequence of F and that is as strong as possible according to certain ... -
Front form and point form formulation of predictive relativistic mechanics. Noninteraction theorems
(1986-02)
Article
Accés obertThe front form and the point form of dynamics are studied in the framework of predictive relativistic mechanics. The noninteraction theorem is proved when a Poincare-invariant Hamiltonian formulation with canonical position ... -
Graphs with large total angular resolution
(2023-01-17)
Article
Accés obertThe total angular resolution of a straight-line drawing is the minimum angle between two edges of the drawing. It combines two properties contributing to the readability of a drawing: the angular resolution, which is the ... -
Immune sets in monotone infection rules: characterization and complexity
(Elsevier, 2023-11-15)
Article
Accés obertMany dissemination processes in graphs can be described as follows at a basic level. At each step of the process, some vertices of the graph are coloured blue, and the remaining are coloured white, and a well-defined ... -
Isogeny-based post-quantum key exchange protocols
(Universitat Politècnica de Catalunya, 2020-01)
Treball Final de Grau
Accés obertThe goal of this project is to understand and analyze the supersingular isogeny Diffie Hellman (SIDH), a post-quantum key exchange protocol which security lies on the isogeny-finding problem between supersingular elliptic ... -
K-1,K-3-covering red and blue points in the plane
(Chapman & Hall/CRC, 2019-01-31)
Article
Accés obertWe say that a finite set of red and blue points in the plane in general position can be K1,3-covered if the set can be partitioned into subsets of size 4, with 3 points of one color and 1 point of the other color, in such ... -
Linkable Attribute-based Signature
(Universitat Politècnica de Catalunya, 2020-10)
Projecte Final de Màster Oficial
Accés obertAttribute-based signatures, as introduced by Maji et al. [MPR11] allow to generate anonymously a signature for a message on behalf of a signing policy. To sign a message, a private attribute that satises the signing policy ... -
Logaritme discret i aplicacions a la criptografia
(Universitat Politècnica de Catalunya, 2015-07)
Treball Final de Grau
Accés obertEl logaritme discret és un isomorfisme entre el grup de les classes de congruència mòdul n i el grup G. Aquesta aplicació és molt útil per a crear protocols criptogràfics de clau pública. La seguretat d'aquests sistemes ... -
Maximum box problem on stochastic points
(Springer Nature, 2021-10-28)
Article
Accés obertGiven a finite set of weighted points in Rd (where there can be negative weights), the maximum box problem asks for an axis-aligned rectangle (i.e., box) such that the sum of the weights of the points that it contains is ...