149 citations
- Telefonica Research and DevelopmentES18 papers
- Telefonica (Germany)DE9 papers
- Universidad Carlos III de MadridES4 papers
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- Universitat de BarcelonaES3 papers
- Universitat Politècnica de CatalunyaES3 papers
- Universitat Pompeu FabraES3 papers
- Cyprus University of TechnologyCY2 papers
- Foundation for Research and Technology HellasGR2 papers
- Laboratoire Traitement et Communication de l’InformationFR2 papers
- Universidad Autónoma de MadridES2 papers
- Universidad de ValladolidES2 papers
6 papers · 1 filter
An alternative recursive formula for the sums of powers of integers
José Luis Cereceda
In this note, we derive an alternative recursive formula for the sums of powers of integers involving the Stirling numbers of the first kind. As a remarkable by-product, we provide…
Chained Clauser-Horne-Shimony-Holt inequality for Hardy's ladder test of nonlocality
José L. Cereceda
Relativistic causality forbids superluminal signaling between distant observers. By exploiting the non-signaling principle, we derive the exact relationship between the chained Cla…
Privacy Concerns vs. User Behavior in Community Question Answering
Imrul Kayes, Nicolas Kourtellis, Francesco Bonchi +1
Community-based question answering (CQA) platforms are crowd-sourced services for sharing user expertise on various topics, from mechanical repairs to parenting. While they natural…
Cultures in Community Question Answering
Imrul Kayes, Nicolas Kourtellis, Daniele Quercia +2
CQA services are collaborative platforms where users ask and answer questions. We investigate the influence of national culture on people's online questioning and answering behavio…
Finding Intermediary Topics Between People of Opposing Views: A Case Study
Eduardo Graells-Garrido, Mounia Lalmas, Ricardo Baeza-Yates
In micro-blogging platforms, people can connect with others and have conversations on a wide variety of topics. However, because of homophily and selective exposure, users tend to…
Collaborative Filtering Bandits
Shuai Li, Alexandros Karatzoglou, Claudio Gentile
Classical collaborative filtering, and content-based filtering methods try to learn a static recommendation model given training data. These approaches are far from ideal in highly…