Publications associées à Interpersonal ties

Preliminary metadata paper. Data Domotopia: a web-based survey about home-making in a moving world

Vincent Kaufmann, Luca Giovanni Pattaroni, Guillaume Simon Joseph Drevon, Marc-Edouard Baptiste Grégoire Schultheiss, Garance Clément, Fiona Ines Del Puppo

This questionnaire Data Domotopia is a 100+ multi-purpose items about home-making and stillness in a moving world. The survey covers most of the contemporary issues related to home-making. This includes the domestic space and gender issues; the socio-spati ...

2022

Dynamic Personalized Ranking

Jérémie Rappaz

Personalized ranking methods are at the core of many systems that learn to produce recommendations from user feedbacks. Their primary objective is to identify relevant items from very large vocabularies and to assist users in discovering new content. These ...

EPFL2022

‘Ecological concerns weren’t the main reason why I took the bus, that association only came afterwards’: on shifts in meanings of everyday mobility

Livia Bianca Fritz, Franziska Meinherz

Reducing the modal share of car travel in commuting implies challenging meanings of everyday mobility that tie commuting to driving. Existing research has focussed on describing ways in which everyday mobility is meaningful. However, why shifts in meanings ...

2021

Strong, Weak and Invisible Ties: A Relational Perspective on Urban Coexistence

Maxime Carl Felder

The dichotomy between ‘strong’ and ‘weak’ ties is a common theme in sociological scholarship dealing with urban space, yet urban ethnographers have long been describing the prevalence of impersonal relations. Such relations can be described as fleeting enc ...

2020

Bartering Books to Beers: a Recommender System for Exchange Platforms

Michele Catasta, Jérémie Rappaz, Maria-Luiza Vladarean

Bartering is a timeless practice that is becoming increasingly popular on the Web. Recommending trades for an online bartering platform shares many similarities with traditional approaches to recommendation, in particular the need to model the preferences ...

2017

Statistical physics approaches to subnetwork dynamics in biochemical systems

Barbara Bravi

We apply a Gaussian variational approximation to model reduction in large biochemical networks of unary and binary reactions. We focus on a small subset of variables (subnetwork) of interest, e.g. because they are accessible experimentally, embedded in a l ...

Iop Publishing Ltd2017

When Others Impinge upon Your Privacy : Interdependent Risks and Protection in a Connected World

Mathias Jacques Jean-Marc Humbert

Privacy is defined as the right to control, edit, manage, and delete information about oneself and decide when, how, and to what extent this information is communicated to others. Therefore, every person should ideally be empowered to manage and protect hi ...

EPFL2015

Comparing the Predictive Capability of Social and Interest Affinity for Recommendations

Karl Aberer, Anne-Marie Kermarrec, Alexandra Olteanu

The advent of online social networks created new prediction opportunities for recommender systems: instead of relying on past rating history through the use of collaborative filtering (CF), they can leverage the social relations among users as a predictor ...

Springer-Verlag Berlin2014

Inferring Social Ties in Academic Networks Using Short-Range Wireless Communications

Jean-Pierre Hubaux, Kévin Clément Huguenin, Igor Bilogrevic, Murtuza Jadliwala, Valtteri Niemi, Florent Lopez

WiFi base stations are increasingly deployed in both public spaces and private companies, and the increase in their density poses a significant threat to the privacy of connected users. Prior studies have provided evidence that it is possible to infer the ...

2013

Big Brother Knows Your Friends: on Privacy of Social Communities in Pervasive Networks

Jean-Pierre Hubaux, Imad Aad, Igor Bilogrevic, Murtuza Jadliwala, Valtteri Niemi, Laurent Bindschaedler

Wireless network operators increasingly deploy WiFi hotspots and low-power, low-range base stations in order to satisfy users' growing demands for context-aware services and performance. In addition to providing better service, such capillary infrastructur ...

2012

Do Firms Know the Scope of their R&D Network? An Empirical Investigation of the Determinants of Network Awareness on French Survey Data

Stéphane Lhuillery

Although research and development (R&D) networks influence the innovation performance of their members, firms may not be fully aware of the scope of their network. In particular, due to cost reasons, they may not be fully informed of their “indirect ties”, ...

Taylor & Francis2011

Information exchange in user communities : a study of individual level determinants and firm level effects in the U.S. snowsports industry

Thomas Langenberg

In this dissertation I examine information processing in communities of product technology users – that is the question of how individual level information exchange in networks of personal relationships influences firm-level outcomes. I draw on research in ...

EPFL2007