以下为卖家选择提供的数据验证报告:
数据描述
Description
>The Human Activity Recognition 70+ (HAR70+) dataset is a professionally-annotated dataset containing 18 fit-to-frail older-adult subjects (70-95 years old) wearing two 3-axial accelerometers for around 40 minutes during a semi-structured free-living protocol. The sensors were attached to the right thigh and lower back
Each subject's recordings are provided in a separate .csv file. One such .csv file contains the following columns: >1. timestamp: date and time of recorded sample 2. back_x: acceleration of back sensor in x-direction (down) in the unit g 3. back_y: acceleration of back sensor in y-direction (left) in the unit g 4. back_z: acceleration of back sensor in z-direction (forward) in the unit g 5. thigh_x: acceleration of thigh sensor in x-direction (down) in the unit g 6. thigh_y: acceleration of thigh sensor in y-direction (right) in the unit g 7. thigh_z: acceleration of thigh sensor in z-direction (backward) in the unit g 8. label: annotated activity code
The dataset contains the following annotated activities with the corresponding coding scheme: >1: walking 3: shuffling 4: stairs (ascending) 5: stairs (descending) 6: standing 7: sitting 8: lying
