9 citations · 48 across the 13 of their papers we have counts for
5 papers · 1 filter
Modeling Temporal Evidence from External Collections
Flávio Martins, João Magalhães, Jamie Callan
Newsworthy events are broadcast through multiple mediums and prompt the crowds to produce comments on social media. In this paper, we propose to leverage on this behavioral dynamic…
Temporal Cross-Media Retrieval with Soft-Smoothing
David Semedo, João Magalhães
Multimedia information have strong temporal correlations that shape the way modalities co-occur over time. In this paper we study the dynamic nature of multimedia and social-media…
Inferring User Gender from User Generated Visual Content on a Deep Semantic Space
David Semedo, João Magalhães, Flávio Martins
In this paper we address the task of gender classification on picture sharing social media networks such as Instagram and Flickr. We aim to infer the gender of an user given only a…
Ranking News-Quality Multimedia
Gonçalo Marcelino, Ricardo Pinto, João Magalhães
News editors need to find the photos that best illustrate a news piece and fulfill news-media quality standards, while being pressed to also find the most recent photos of live eve…
A Vertical PRF Architecture for Microblog Search
Flávio Martins, João Magalhães, Jamie Callan
In microblog retrieval, query expansion can be essential to obtain good search results due to the short size of queries and posts. Since information in microblogs is highly dynamic…