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Mobile behavioral biometrics have become a popular topic of research, reaching promising results in
terms of authentication, exploiting a multimodal combination of touchscreen and background sensor
data. However, there is no way of knowing whether state-of-the-art classifiers in the literature can distinguish between the notion of user and device. In this article, we present a new database, BehavePassDB,
structured into separate acquisition sessions and tasks to mimic the most common aspects of mobile
Human-Computer Interaction (HCI). BehavePassDB is acquired through a dedicated mobile app installed
on the subjects devices, also including the case of different users on the same device for evaluation. We
propose a standard experimental protocol and benchmark for the research community to perform a fair
comparison of novel approaches with the state of the art1. We propose and evaluate a system based on
Long-Short Term Memory (LSTM) architecture with triplet loss and modality fusion at score levelThis project has received funding from the European Unions
Horizon 2020 research and innovation programme under the Marie
Skodowska-Curie grant agreement no. 860315, and from Orange
Labs. R. Tolosana and R. Vera-Rodriguez are also supported by
INTER-ACTION (PID2021-126521OB-I00 MICINN/FEDER
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