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Multi-site sensing for activity recognition using accelerometers

This repo hosts the source codes and dataset for Posture and Physical Activity Detection: Impact of Number of Sensors and Feature Type.


If you have used the codes or referred to the manuscript in your publication, please kindly cite the following paper.

Tang, Q., John, D., Thapa-Chhetry, B., Arguello, D.J. and Intille, S., 2020. Posture and Physical Activity Detection: Impact of Number of Sensors and Feature Type. Medicine & Science in Sports & Exercise. Preprint.


  1. Python >= 3.7
  2. poetry dependency management for python. Install using pip install poetry.
  3. git
  4. graphviz (optional, required to generate workflow diagram pdf)

Get started

Install dependencies

At the root of the project folder, run

> poetry install

Reproduce publication results

Run with multi-core processing and memory on a new session folder. Overwrite data or results if they are found to exist.

>> poetry run reproduce --parallel --force-fresh-data=True

You may find intermediate and publication results in ./muss_data/DerivedCrossParticipants/product_run.

Sample reproduction results

Check here for a sample reproduction results.

Get help

Run above command at the root of the repository to see the usage of the reproduction script.

>> poetry run python --help

The reproduct script will do the following,

  1. Download and unzip the raw dataset
  2. Compute features and convert annotations to class labels
  3. Run LOSO cross validations on datasets of different combinations of sensor placements
  4. Compute metrics from the outputs of the LOSO cross validations
  5. Generate publication tables and graphs

Train and save a model using muss dataset

Make sure you run the reproduce script at first.

You may want to train and save an activity recognition model using the dataset shipped with this repo. To do it, at the root of the project folder, run,

>> poetry run python

By default, it will train two dual-sensor models (DW + DA) using motion + orientation feature set, each for postures and daily activities.

Get help

>> poetry run python --help

You may config the type of feature set, the target class labels and the sensor placements used.

For developers

Use your custom model for training and testing

You may check out the two files and and see how different models are called and used.

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