Mehdi Boukhechba Abdenour Bouzouane Bruno Bouchard 0001 Charles Gouin-Vallerand Sylvain Giroux Online recognition of people's activities from raw GPS data: semantic trajectory data analysis. 40:1-40:8 2015 PETRA https://doi.org/10.1145/2769493.2769498 https://www.wikidata.org/entity/Q130905265 conf/petra/2015 db/conf/petra/petra2015.html#BoukhechbaBBGG15