PAAL ADL Accelerometry dataset v2.0

The PAAL ADL Accelerometry dataset (v2.0) has been acquired with a high-quality wearable multisensor device, the Empatica E4. In this dataset, among the signals collected by the sensors embedded in the Empatica E4, only the acceleration has been extracted to monitor the users performing different activities of daily living (ADLs). To promote the real-life acquisition procedure, subjects acted in their natural environment, with no instructions about how and for how long to perform each activity (other than a minimum time). The device was worn on the dominant hand. The dataset includes <strong>24 different ADLs</strong> performed using real objects. Each activity was repeated between 3 and 5 times (on average) by <strong>52 healthy subjects</strong>, characterized by a gender balance <strong>(26 women and 26 men)</strong>, and a large age range (between 18 and 77 years, mean = 44.08 years and standard deviation = 17.06 years). The PAAL ADL Accelerometry dataset (v2.0) is composed of three files: users.csv: each line contains (participant id, gender, age) of each user performing the ADLs in the dataset. <em>N.B: gender labels are 'man' and 'woman'</em>. ADLs.csv: each line contains (ADL id, ADL name) data.zip: folder with 6,072 files of accelerometer data of users performing ADLs. The name of each file indicates the name of the ADL, the user id and the repetition. Each row in the files represents the continuous gravitational force (g) applied to each of the three spacial dimensions (x, y, and z). The scale is limited to [-2g, +2g]. The sampling frequency is 32 Hz, with a resolution of 0.015 g (8 bit). More information about the format here.PAAL ADL加速度计数据集（v2.0）采用高品质可穿戴多传感器设备Empatica E4采集。该数据集仅提取Empatica E4内置传感器采集的加速度信号，用于监测用户完成各类日常活动（Activities of Daily Living，ADL）。为还原真实生活中的采集场景，受试者在自然环境中开展活动，仅需遵循每项活动的最低时长要求，无需额外的操作规范与时长限制。设备佩戴于受试者的惯用手。 本数据集包含**24种不同的日常活动**，共52名健康受试者参与，性别分布均衡（26名女性、26名男性），年龄跨度覆盖18至77岁（平均年龄44.08岁，标准差17.06岁），每项活动平均被重复3至5次。 PAAL ADL加速度计数据集（v2.0）由三个文件组成： 1. users.csv：每行包含参与数据集日常活动的用户的（参与者ID、性别、年龄）信息。*注：性别标签为"man"与"woman"*。 2. ADLs.csv：每行包含（活动ID、活动名称）信息。 3. data.zip：包含6072个用户完成日常活动时的加速度数据文件的压缩包。每个文件名包含活动名称、用户ID与重复次数。文件内每行数据代表三维空间（x、y、z）各轴所受的连续重力加速度（单位：g），量程限定为[-2g, +2g]，采样频率为32Hz，分辨率为0.015g（8位量化）。更多格式细节可参阅此处。