Publications related to Personalizing Top-k Processing Online in a Peer-to-Peer Social Tagging Network

Geometry of the Loss Landscape in Overparameterized Neural Networks: Symmetries and Invariances

Wulfram Gerstner, Clément Hongler, Johanni Michael Brea, Francesco Spadaro, Berfin Simsek, Arthur Jacot

We study how permutation symmetries in overparameterized multi-layer neural networks generate `symmetry-induced' critical points. Assuming a network with

L

layers of minimal widths

r_1^*, \ldots, r_{L-1}^*

reaches a zero-loss minimum at $ r_1^*! \c ...

2021

Local Vulnerabilities and Global Robustness of Coupled Dynamical Systems on Complex Networks

Melvyn Sandy Tyloo

Coupled dynamical systems are omnipresent in everyday life. In general, interactions between individual elements composing the system are captured by complex networks. The latter greatly impact the way coupled systems are functioning and evolving in time. ...

EPFL2020

Global robustness versus local vulnerabilities in complex synchronous networks

Philippe René Joseph Jacquod

In complex network-coupled dynamical systems, two questions of central importance are how to identify the most vulnerable components and how to devise a network making the overall system more robust to external perturbations. To address these two questions ...

2019

From recommender systems to spatio-temporal dynamics with network science

Kirell Maël Benzi

Networks are data structures that are fundamental for capturing and analyzing complex interactions between objects. While they have been used for decades to solve problems in virtually all scientific fields, their usage for data analysis in real-world prac ...

EPFL2017

Back to the Source: an Online Approach for Sensor Placement and Source Localization

Patrick Thiran, Laura Elisa Celis, Brunella Marta Spinelli

Source localization, the act of finding the originator of a disease or rumor in a network, has become an important problem in sociology and epidemiology. The localization is done using the infection state and time of infection of a few designated sensor no ...

2017

An affected core drives network integration deficits of the structural connectome in 22q11.2 deletion syndrome

Alessandra Griffa, Patric Hagmann, Marie Schaer, Frantisek Vasa

Chromosome 22q11.2 deletion syndrome (22q11DS) is a genetic disease known to lead to cerebral structural alterations, which we study using the framework of the macroscopic white-matter connectome. We create weighted connectomes of 44 patients with 22q11DS ...

Elsevier Sci Ltd2016

Epidemics in Venice: On the Small or Large Nature of the Pre-modern World

Giovanni Colavizza

Marvel et al. [12] recently argued that the pre-modern contact world was physically and, by set inclusion, socially not small-world. Since the Black Death and similar plagues used to spread in well-defined waves, the argument goes, the underlying contact n ...

Springer International Publishing2016

The MEU web platform: a tool dedicated to urban energy management

Gaëtan Cherix, Massimiliano Capezzali, Pablo Puerto, Mathias Franz Pernet

The MEU GIS-enabled web-platform [1] has been developed in close collaboration with four Swiss cities. The tool enables detailed monitoring and planning for both energy demand and supply at individual building, neighborhood and whole city scale (http://meu ...

LESO-PB, EPFL2015

Combining Content with User Preferences for Non-Fiction Multimedia Recommendation: A Study on TED Lectures

Andrei Popescu-Belis, Nikolaos Pappas

This paper introduces a new dataset and compares several methods for the recommendation of non-fiction audio visual material, namely lectures from the TED website. The TED dataset contains 1,149 talks and 69,023 profiles of users, who have made more than 1 ...

Springer2015

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

Personalizing Top-k Processing Online in a Peer-to-Peer Social Tagging Network

Graph Chatbot

Chat with Graph Search

Geometry of the Loss Landscape in Overparameterized Neural Networks: Symmetries and Invariances

Local Vulnerabilities and Global Robustness of Coupled Dynamical Systems on Complex Networks

Global robustness versus local vulnerabilities in complex synchronous networks

From recommender systems to spatio-temporal dynamics with network science

Back to the Source: an Online Approach for Sensor Placement and Source Localization

An affected core drives network integration deficits of the structural connectome in 22q11.2 deletion syndrome

Epidemics in Venice: On the Small or Large Nature of the Pre-modern World

The MEU web platform: a tool dedicated to urban energy management

Combining Content with User Preferences for Non-Fiction Multimedia Recommendation: A Study on TED Lectures

Comparing the Predictive Capability of Social and Interest Affinity for Recommendations

Local Vulnerabilities and Global Robustness of Coupled Dynamical Systems on Complex Networks

Epidemics in Venice: On the Small or Large Nature of the Pre-modern World

From recommender systems to spatio-temporal dynamics with network science

Global robustness versus local vulnerabilities in complex synchronous networks

Combining Content with User Preferences for Non-Fiction Multimedia Recommendation: A Study on TED Lectures

Comparing the Predictive Capability of Social and Interest Affinity for Recommendations

Geometry of the Loss Landscape in Overparameterized Neural Networks: Symmetries and Invariances

Back to the Source: an Online Approach for Sensor Placement and Source Localization

The MEU web platform: a tool dedicated to urban energy management

An affected core drives network integration deficits of the structural connectome in 22q11.2 deletion syndrome