{"id":2831,"date":"2024-02-18T15:29:24","date_gmt":"2024-02-18T15:29:24","guid":{"rendered":"https:\/\/esisoc.com\/resource\/building-an-activity-recognition-model-using-accelerometer-signal\/"},"modified":"2024-02-18T15:29:24","modified_gmt":"2024-02-18T15:29:24","slug":"building-an-activity-recognition-model-using-accelerometer-signal","status":"publish","type":"resource","link":"https:\/\/esisoc.com\/fr\/resource\/construction-dun-modele-de-reconnaissance-de-lactivite-a-laide-du-signal-de-laccelerometre\/","title":{"rendered":"Construction d'un mod\u00e8le de reconnaissance d'activit\u00e9 \u00e0 partir d'un signal d'acc\u00e9l\u00e9rom\u00e8tre"},"content":{"rendered":"<h2 style=\"text-align: center;\">D\u00e9tails cl\u00e9s<\/h2>\n<p>Am\u00e9lioration de la pr\u00e9cision d'un mod\u00e8le de reconnaissance d'activit\u00e9 par 48%.<\/p>\n<div>\n<ul>\n<li>\n<div>D\u00e9fi<\/div>\n<div>Pr\u00e9voir les moments de tension dans les matchs de basket-ball<\/div>\n<\/li>\n<li>\n<div>Solution<\/div>\n<div>Mod\u00e8le de reconnaissance d'activit\u00e9<\/div>\n<\/li>\n<li>\n<div>Technologies et outils<\/div>\n<div>Python<\/div>\n<\/li>\n<\/ul>\n<\/div>\n<h2 style=\"text-align: center;\">Client<\/h2>\n<p>Une soci\u00e9t\u00e9 internationale d'IdO qui offre de nouveaux types d'exp\u00e9riences au public lors de concerts et d'\u00e9v\u00e9nements. <a href=\"https:\/\/essidsolutions.com\/industry\/sport-wellness-ai\">\u00e9v\u00e9nements sportifs<\/a>.<\/p>\n<h2 style=\"text-align: center;\">D\u00e9fi : pr\u00e9dire les moments de tension dans les matchs de basket-ball<\/h2>\n<p>Le client d'ESSID Solutions avait besoin d'un mod\u00e8le capable de pr\u00e9dire ce que le joueur de basket-ball faisait \u00e0 un moment donn\u00e9 : debout, en marchant, en courant, ou des actions mixtes (par exemple, les moments de saut, de lutte pour un ballon, d'attaque ou de d\u00e9fense contre des joueurs adverses). Le client pr\u00e9voyait d'int\u00e9grer ce mod\u00e8le dans son syst\u00e8me d'information. <a href=\"http:\/\/localhost\/essidsolutions\/service\/predictive-analytics\">solution pour pr\u00e9dire<\/a> moments de tension <a href=\"https:\/\/essidsolutions.com\/industry\/ai-game-solutions\">dans les jeux<\/a>.<\/p>\n<h2 style=\"text-align: center;\">Solution : construction d'un mod\u00e8le de reconnaissance de l'activit\u00e9 humaine bas\u00e9 sur des donn\u00e9es de capteurs<\/h2>\n<p>L'\u00e9quipe de science des donn\u00e9es d'ESSID Solutions a re\u00e7u l'ensemble des donn\u00e9es enregistr\u00e9es lors d'un vrai match de basket. Les joueurs de basket \u00e9taient \u00e9quip\u00e9s de maillots avec des capteurs d'acc\u00e9l\u00e9rom\u00e8tre int\u00e9gr\u00e9s. L'objectif \u00e9tait de classer les activit\u00e9s sur la base de ces signaux.<\/p>\n<p>L'\u00e9quipe charg\u00e9e de la science des donn\u00e9es a commenc\u00e9 par tracer des \u00e9chantillons de donn\u00e9es de signaux et \u00e0 les examiner, mais elle s'est aper\u00e7ue que l'\u00e9tiquetage des donn\u00e9es des \u00e9chantillons \u00e9tait de mauvaise qualit\u00e9. Il est tr\u00e8s difficile d'\u00e9tiqueter les mouvements des athl\u00e8tes avec une pr\u00e9cision d'une seconde. De plus, l'un des capteurs du joueur \u00e9tait d\u00e9synchronis\u00e9 par rapport au temps du jeu. C'est pourquoi le premier mod\u00e8le a \u00e9t\u00e9 construit pour synchroniser tous les capteurs des athl\u00e8tes avec le temps r\u00e9el du jeu.<\/p>\n<p>Apr\u00e8s avoir synchronis\u00e9 les capteurs, l'\u00e9quipe d'ESSID Solutions a construit un outil qui a permis de corriger facilement les erreurs d'\u00e9tiquetage. L'outil visualise les signaux des capteurs, la vid\u00e9o et les \u00e9tiquettes initiales sur un seul \u00e9cran, de sorte qu'il \u00e9tait facile de remarquer les erreurs et de les corriger. La correction des erreurs permettrait d'am\u00e9liorer consid\u00e9rablement les performances du mod\u00e8le \u00e0 l'avenir.<\/p>\n<p>Solutions ESSID <a href=\"https:\/\/essidsolutions.com\/\">experts en science des donn\u00e9es<\/a> est pass\u00e9 \u00e0 l'extraction des caract\u00e9ristiques et \u00e0 la mod\u00e9lisation. Apr\u00e8s avoir exp\u00e9riment\u00e9 diff\u00e9rentes approches, les meilleurs r\u00e9sultats ont \u00e9t\u00e9 obtenus avec l'algorithme de r\u00e9gression logistique. L'\u00e9quipe a r\u00e9ussi \u00e0 construire un mod\u00e8le qui a \u00e9t\u00e9 form\u00e9 sur un ensemble donn\u00e9 de joueurs et qui peut \u00eatre appliqu\u00e9 \u00e0 d'autres joueurs \u00e0 l'avenir.<\/p>\n<h2 style=\"text-align: center;\">R\u00e9sultat : un mod\u00e8le performant<\/h2>\n<p>L'\u00e9quipe d'ESSID Solutions a fourni un mod\u00e8le de reconnaissance d'activit\u00e9 pr\u00e9cis qui \u00e9tait pr\u00eat \u00e0 \u00eatre int\u00e9gr\u00e9 dans le syst\u00e8me du client pour pr\u00e9dire les moments de tension au basket-ball. <a href=\"https:\/\/essidsolutions.com\/industry\/ai-game-solutions\">jeux<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>D\u00e9tails cl\u00e9s Am\u00e9lioration de la pr\u00e9cision d'un mod\u00e8le de reconnaissance d'activit\u00e9 par 48%. D\u00e9fi Pr\u00e9dire les moments de tension dans les matchs de basket Solution Mod\u00e8le de reconnaissance d'activit\u00e9 Technologies et outils Python Client Une soci\u00e9t\u00e9 internationale d'IoT qui offre de nouveaux types d'exp\u00e9riences au public lors de concerts et d'\u00e9v\u00e9nements sportifs. D\u00e9fi : pr\u00e9dire les moments de tension dans les matchs de basket-ball Le client d'ESSID Solutions avait besoin ... 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