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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
UPF Digital Repository
Master thesis . 2017
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Randomized numerical linear algebra for generalized linear models with big datasets

Authors: Lange, Robert Tjarko;

Randomized numerical linear algebra for generalized linear models with big datasets

Abstract

Les qüestions científiques de dades afronten el compromís fonamental entre complexitat, generalizabilitat i viabilitat computacional. La necessitat d'una ràpida estimació i avaluació d'una gran quantitat de models estadístics ha donat lloc a una infinitat d'algorismes nous i innovadors en el camp de l'àlgebra lineal numèrica aleatòria (RandNLA). Tenen la intenció de disminuir el temps d'execució efectiu mitjançant l'aproximació de solucions exactes. Un comunament permet una mica de "descentralització" per a fer ús d'idees incrustantes potents de subespacio com la transformació Johnson-Lindenstrauss (JLT). D'aquesta manera, es pot reduir significativament la dimensionalitat del problema, tot conservant una quantitat substancial de l'estructura original. Petros Drineas i Michael Mahoney han estat aplicant aquestes idees a una sèrie de problemes com la solució de sistemes lineals d'equacions (sobre i subterfugis), la finalització de la matriu i la aproximació a la matriu de baix rang.

Data scientific questions face the fundamental trade-off between complexity, generalizability and computational feasibility. The need for quick estimation and evaluation of a vast amount of statistical models has given rise to a plethora of new and innovative algorithms in the field of randomized numerical linear algebra (RandNLA). They intend to decrease effective running time by approximating exact solutions. One commonly allows for some e-"slack" in order to make use of powerful subspace embedding ideas such as the Johnson-Lindenstrauss transform (JLT). In this way, one is able to significantly reduce the dimensionality of the problem, while preserving a substantial amount of the original structure. Petros Drineas and Michael Mahoney have been applying these ideas to a range of problems such as solving linear systems of equations (over-and under-constrained), matrix completion and low-rank matrix approximation.

Directors: Prof. Ioannis Kosmidis (UCL), i Prof. Omiros Paspapiliopoulos (UPF)

Treball fi de màster de: Master's Degree in Data Science. Curs 2016-2017

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Spain
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Treball de fi de màster – Curs 2016-2017

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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