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ASUNAM
2009
IEEE
14 years 1 hour ago
Groupthink and Peer Pressure: Social Influence in Online Social Network Groups
In this paper, we present a horizontal view of social influence, more specifically a quantitative study of the influence of neighbours on the probability of a particular node to jo...
Pan Hui, Sonja Buchegger
APAL
2008
93views more  APAL 2008»
13 years 8 months ago
Arithmetic of Dedekind cuts of ordered Abelian groups
We study Dedekind cuts on ordered Abelian groups. We introduce a monoid structure on them, and we characterise, via a suitable representation theorem, the universal part of the th...
Antongiulio Fornasiero, Marcello Mamino
CORR
2007
Springer
164views Education» more  CORR 2007»
13 years 8 months ago
Consistency of the group Lasso and multiple kernel learning
We consider the least-square regression problem with regularization by a block 1-norm, that is, a sum of Euclidean norms over spaces of dimensions larger than one. This problem, r...
Francis Bach
SIAMDM
2008
105views more  SIAMDM 2008»
13 years 8 months ago
Average Spectra and Minimum Distances of Low-Density Parity-Check Codes over Abelian Groups
Ensembles of regular low-density parity-check codes over any finite Abelian group G are studied. The nonzero entries of the parity matrix are randomly chosen, independently and uni...
Giacomo Como, Fabio Fagnani
PUC
2008
87views more  PUC 2008»
13 years 7 months ago
Multimodal support to group dynamics
The complexity of group dynamics occurring in small group interactions often hinders the performance of teams. The availability of rich multimodal information about what is going o...
Fabio Pianesi, Massimo Zancanaro, Elena Not, Chiar...