Being able to assess dog personality can be used to, for example, match shelter dogs with future owners, and personalize dog activities. Such an assessment typically relies on experts or psychological scales administered to dog owners, both of which are costly. To tackle that challenge, we built a device called "Patchkeeper" that can be strapped on the pet's chest and measures activity through an accelerometer and a gyroscope. In an in-the-wild deployment involving 12 healthy dogs, we collected 1300 hours of sensor activity data and dog personality test results from two validated questionnaires. By matching these two datasets, we trained ten machine-learning classifiers that predicted dog personality from activity data, achieving AUCs in [0.63-0.90], suggesting the value of tracking the psychological signals of pets using wearable technologies.

翻译：能够评估犬只性格可用于多种场景，例如匹配收容所犬只与未来主人，以及个性化犬类活动。此类评估通常依赖专家或向犬主施行的心理量表，二者成本均较高。为应对这一挑战，我们开发了一款名为"Patchkeeper"的设备，可佩戴于宠物胸部，通过加速度计和陀螺仪测量活动量。在涉及12只健康犬只的室外实地部署中，我们收集了1300小时的传感器活动数据及通过两份验证问卷获取的犬只性格测试结果。通过匹配这两组数据，我们训练了十个机器学习分类器，从活动数据中预测犬只性格，AUC值达到[0.63-0.90]，表明利用可穿戴技术追踪宠物心理信号具有重要价值。