TY - CONF AU - Pierluigi Casale AU - Oriol Pujol AU - Petia Radeva AU - Jordi Vitria A2 - CCIA PY - 2009// TI - A First Approach to Activity Recognition Using Topic Models BT - 12th International Conference of the Catalan Association for Artificial Intelligence SP - 74 EP - 82 VL - 202 N2 - In this work, we present a first approach to activity patterns discovery by mean of topic models. Using motion data collected with a wearable device we prototype, TheBadge, we analyse raw accelerometer data using Latent Dirichlet Allocation (LDA), a particular instantiation of topic models. Results show that for particular values of the parameters necessary for applying LDA to a countinous dataset, good accuracies in activity classification can be achieved. SN - 978-1-60750-061-2 UR - http://dx.doi.org/10.3233/978-1-60750-061-2-74 N1 - OR;MILAB;HuPBA;MV ID - Pierluigi Casale2009 ER -