This dataset represents ambient data collected longitudinally in 189 community homes. The data are collected over 18 years, from 2007 to 2024. This is a resource for analyzing naturalistic behavior in a home and building activity recognition models that operate in the wild.

Data are collected continuously from ambient sensors while residents perform their normal routines. The data fields are date, time, sensor identifier, and message. The sensors consist of PIR (motion) sensors and magnetic door (open/close) sensors. Sensors are attached to ceilings and identified by their location in the home (e.g., Bathroom, Bedroom, DiningRoom, Bed, Bath, OfficeChair). If a home contains more than one room of a given type, the corresponding sensors are distinguished by a trailing letter to differentiate the rooms (e.g., BedroomA, BedroomB). The lens of most motion sensors are constrained to cover a 1 meter diameter area. To detect movement in a larger area, an unconstrained sensor is angled to cover an entire room or region and is indicated by Area (e.g., BedroomArea).

There is one file per home. Some of the homes also include floorplans. Additionally, data from some of the homes is labeled with activities by an external annotator. There homes in this dataset are listed below with the number of residents.