CRAWDAD dartmouth/cenceme

CenceMe is a sensing system based on standard and sensor-enabled mobile phones. CenceMe uses the output of the phones' sensors and external data (if such is available) to infer human presence and activity information. This dataset contains movements and inferred activities of participants using CenceMe on their mobile phones.date/time of measurement start: 2008-07-28date/time of measurement end: 2008-08-11collection environment: CenceMe is a personal sensing system, which uses sensor data gathered using mobile devices (e.g. sensor-enabled cell phones) to learn about the activities of their carriers.network configuration: The dataset was collected during the deployment of a modified version of the CenceMe application, CenceMeLite, that logged all the sensed information and high-level inferred activities on the phone's on-board flash memory.data collection methodology: The phones recorded information about the system and raw data from accelerometer and GPS devices.limitation: Some users did not use the phone much and thus did not collect useful data.CenceMeLite traces collected by students and staff members at Dartmouth College.The data were collected by means of 20 Nokia N95 phones carried by students and staff members from the departments of Computer Science and Biology at Dartmouth College.

CenceMe是一款基于标准制式且支持传感器功能的移动电话的感知系统。CenceMe利用手机传感器的输出数据与可用外部数据（若有），推断人类的存在状态与活动信息。本数据集收录了参与者通过移动设备运行CenceMe所记录的活动轨迹与经推理得到的活动信息。
测量开始日期/时间：2008-07-28
测量结束日期/时间：2008-08-11
采集环境：CenceMe属于个人感知系统，通过移动设备（如支持传感器功能的手机）采集的传感器数据，以了解设备持有者的日常活动情况。
网络配置：本数据集通过修改版CenceMe应用CenceMeLite采集所得，该应用会将所有感知到的原始信息与高阶推理得到的活动日志存储至手机内置闪存中。
数据采集方法：采集所用的手机记录了系统相关信息，以及来自加速度计与GPS设备的原始传感数据。
局限性：部分用户极少使用所携带的手机，因此未采集到有效可用数据。
本数据集的CenceMeLite轨迹由达特茅斯学院（Dartmouth College）的师生采集所得。本次数据采集使用了20台诺基亚N95（Nokia N95）手机，由达特茅斯学院计算机科学与生物学系的师生随身携带使用。