52 citations · 170 across the 22 of their papers we have counts for
3 papers · 1 filter
Nonnegative Matrix Factorization with Transform Learning
Dylan Fagot, Cédric Févotte, Herwig Wendt
Traditional NMF-based signal decomposition relies on the factorization of spectral data, which is typically computed by means of short-time frequency transform. In this paper we pr…
Scaling in Internet Traffic: a 14 year and 3 day longitudinal study, with multiscale analyses and random projections
Romain Fontugne, Patrice Abry, Kensuke Fukuda +4
In the mid-90's, it was shown that the statistics of aggregated time series from Internet traffic departed from those of traditional short range dependent models, and were instead…
Multivariate Hadamard self-similarity: testing fractal connectivity
Herwig Wendt, Gustavo Didier, Sébastien Combrexelle +1
While scale invariance is commonly observed in each component of real world multivariate signals, it is also often the case that the inter-component correlation structure is not fr…