A single-radio station that performs multi-gateway backhaul aggregation in a fair and distributed way, without requiring any change in the network.

A solution that can be applied to permit groups of devices (server farms, network segments, etc.) to behave collectively as an energy proportional ensemble.

A network coding multipath forwarding scheme that improves reliability and performance of TCP sessions in wireless mesh networks.

A middleware solution that is able to transparently scale Online Social Networks to hundreds of millions of users.

A framework that is able to generate synthetic traces of write activity on Online Social Networks.

This project aims to perform a thorough characterization of astroturfing profiles as gathered by the Truthy project

A practical alternative to traditional search that can satisfy the users’ needs for relevant information without the overhead of having the users explicitly state a query.

A project that uses the information obtained from call detaild records to characterize and model urban landscapes in order to provide complementary approaches to traditional urban analysis techniques.

A research project that explores in two differentiated lines: Observation Approach and Intervention Approach.

This project explores four differentiated lines related to carry out large scale studies about the nature and dynamics of communication.

A system that exploits information from online social networks to deliver long-tail content in an efficient manner.

A system that employs a network of storage nodes to stitch together unutilized bandwidth, whenever and wherever it exists.

An architecture that improves the flexibility of how the datastore nodes are utilized, decouples the control plane from the data plane and allows for many domain specific optimizations.

A work line that has developed scalable methodologies that permit answer questions for ISPs and their users.

A system that places equal emphasis on the detection of video copies in the audio and the video channels, and performs a robust fusion of both modalities for enhanced results.

Project focuses on the analysis of audio data, and in particular of the people whose voice is being recorded. Its aim is to create robust methods to identify who is speaking and when they are speaking.

Novel multimedia storytelling system to help users both in their multimedia organization tasks and in the automatic selection of multimedia content for storytelling purposes.

Project focuses on studying methods for the analysis and exploitation of large-scale collaborative multimedia databases.

Two developments for understanding how, why, where and when mobile users access and consume content via their mobile phones.

A novel mobile phone-based game that motivates patients to be more adherent to their medication prescription by means of social competition.

A development for increase privacy intrusions have led to efforts to curtail the leak of personal information like cookie-blockers, privacy preserving proxies, etc.

Effective and efficient social-network-based Sybil detection mechanism for centralized Online Social Networks.

A development that uses online social networks to provide lightweight identity credentials while preserving a user's anonymity.

This project carries out studies which include pricing for residential broadband, inter-connection economics between access ISPs, transit ISPs, and content creators.

This project aims at using Telefónica’s International Wholesale Services bandwidth resource monitoring tools, such as PeakFlow, to obtain detailed per-customer and per-flow data, and the Shapley value framework to derive fair pricings per customer and per type of flow/service.

A monitoring system that taps into the bittorrent ecosystem, and efficiently and discretely collects bittorrent related performance data without requiring the cooperation of the end-users.

A project that takes a different approach by using opinions or ratings form domain "experts".

The main aim of this project is build a compact context-aware recommender system for mobile and desktop computing devices that can integrate context data when available.

The main purpose of this project is to automatically infer the customers´ cognitive styles based on their mobile phone usage behavior as logged by the operator.

An exchange platform where people lend each other objects of small value, such as ski boots or a star-shaped screwdrivers.

A research in the area of technologies for emerging markets focuses on understanding how cell phones are currently being used in developing economies.

A research project that performs a study on the development of cellphone-based personalized applications through the use of user modeling techniques and in areas with potential social impact.

This project analyses the topological and temporal patterns of communication to study the most influential users, and characterize different strategies of viral marketing campaigns according to different products/services.

This project carries out an extensively study about the temporal annotations of past communications in social networks and propose two novel tools –communication motifs and maximum-flow communication motifs– to characterize the patterns of information propagation in social networks.

This project carries out an analysis and characterization of the time distribution across the social network, and the identification and analysis of different communication strategies.

This project is focuses on understanding under what conditions an edge in a social network at a time t is likely to decay or persist in a future time t+Dt.

The goal of this work is to study the way in which people access mobile Internet content and in particular how they use mobile search.

A proof-of-concept map-based mobile search prototype designed to enhance the search and information discovery experience of mobile users