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Unsupervised template discovery in activity recognition using the Gamma Growing Neural Gas algorithm

Satizábal, Héctor ; Perez-Uribe, Andres

In: Soft Computing, 2015, vol. 19, no. 9, p. 2435-2445

Scalable Recovery of Missing Blocks in Time Series With High and Low Cross-correlations

Khayati, Mourad ; Cudré-Mauroux, Philippe ; Boehlen, Michael

In: Knowledge and Information Systems, 2020, vol. 62, p. 2257-2280

Missing values are very common in real-world data including time-series data. Failures in power, communication or storage can leave occasional blocks of data missing in multiple series, affecting not only real-time monitoring but also compromising the quality of data analysis. Traditional recovery (imputation) techniques often leverage the correlation across time series to recover missing...

Tracking public opinion on social media

Giachanou, Anastasia ; Crestani, Fabio (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2018 ; 2018INFO016.

The increasing popularity of social media has changed the web from a static repository of information into a dynamic forum with continuously changing information. Social media platforms has given the capability to people expressing and sharing their thoughts and opinions on the web in a very simple way. The so-called User Generated Content is a good source of users opinion and mining it can be...

An invariance property of quadratic forms in random vectors with a selection distribution, with application to sample variogram and covariogram estimators

Arellano-Valle, Reinaldo ; Genton, Marc

In: Annals of the Institute of Statistical Mathematics, 2010, vol. 62, no. 2, p. 363-381

Goodness-of-fit tests for correlated data

GASSER, THEO

In: Biometrika, 1975, vol. 62, no. 3, p. 563-570