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6 papers · 1 filter
Recollements of Module Categories
Chrysostomos Psaroudakis, Jorge Vitoria
We establish a correspondence between recollements of abelian categories up to equivalence and certain TTF-triples. For a module category we show, moreover, a correspondence with i…
Finding the Right Set of Users: Generalized Constraints for Group Recommendations
Kostas Stefanidis, Evaggelia Pitoura
Recently, group recommendations have attracted considerable attention. Rather than recommending items to individual users, group recommenders recommend items to groups of users. In…
On Graph Deltas for Historical Queries
Georgia Koloniari, Dimitris Souravlias, Evaggelia Pitoura
In this paper, we address the problem of evaluating historical queries on graphs. To this end, we investigate the use of graph deltas, i.e., a log of time-annotated graph operation…
Opinion Maximization in Social Networks
Aristides Gionis, Evimaria Terzi, Panayiotis Tsaparas
The process of opinion formation through synthesis and contrast of different viewpoints has been the subject of many studies in economics and social sciences. Today, this process m…
Renormalization of the Spin-dependent WIMP scattering off nuclei
P. C. Divari, J. D. Vergados
We study the amplitude for the spin-dependent WIMP scattering off nuclei by including the leading long-range two-body currents in the most important isovector contribution. We show…
Search for contact interactions using the inclusive jet pT spectrum in pp collisions at sqrt(s) = 7 TeV
CMS Collaboration
Results are reported of a search for a deviation in the jet production cross section from the prediction of perturbative quantum chromodynamics at next-to-leading order. The search…