Designing weighted and multiplex networks for deep learning user geolocation in Twitter

• URL: http://arxiv.org/abs/2112.06999v1
• Date: Mon, 13 Dec 2021 20:24:07 GMT
• Title: Designing weighted and multiplex networks for deep learning user geolocation in Twitter
• Authors: Federico M. Funes, Jos\'e Ignacio Alvarez-Hamelin, Mariano G. Beir\'o
• Abstract summary: This work contributes to the research in this area by designing and evaluating new methods based on the literature of weighted multigraphs combined with state-of-the-art deep learning techniques. We assess the performance of each of these methods and compare them to baseline models in the publicly available Twitter-US dataset. We also make a new dataset available based on a large Twitter capture in Latin America.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Predicting the geographical location of users of social media like Twitter has found several applications in health surveillance, emergency monitoring, content personalization, and social studies in general. In this work we contribute to the research in this area by designing and evaluating new methods based on the literature of weighted multigraphs combined with state-of-the-art deep learning techniques. The explored methods depart from a similar underlying structure (that of an extended mention and/or follower network) but use different information processing strategies, e.g., information diffusion through transductive and inductive algorithms -- RGCNs and GraphSAGE, respectively -- and node embeddings with Node2vec+. These graphs are then combined with attention mechanisms to incorporate the users' text view into the models. We assess the performance of each of these methods and compare them to baseline models in the publicly available Twitter-US dataset; we also make a new dataset available based on a large Twitter capture in Latin America. Finally, our work discusses the limitations and validity of the comparisons among methods in the context of different label definitions and metrics.

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