fundamental challenge in real-time labelling of activity data is user burden. The Experience Sampling Method (ESM) is widely used to obtain such labels for sensor data. However, in an in-situ deployment, it is not feasible to expect users to precisely label the start and end time of each event or activity. For this reason, time-point based experience sampling (without an actual start and end time) is prevalent. We present a framework that applies multi-instance and semi-supervised learning techniques to perform to predict user annotations from multiple mobile sensor data streams. Our proposed framework estimates users’ annotations in ESM-based studies progressively, via an interactive pipeline of co-training and active learning. We evaluate our work using data collected from an in-the-wild data collection.
@inproceedings{liono2019improving,
author = {Liono, Jonathan and Salim, Flora D and van Berkel, Niels and Kostakos, Vassilis and Qin, A Kai},
booktitle = {IEEE PerCom},
title = {Improving Experience Sampling with Multi-View User-Driven Annotation Prediction},
volume = {19},
year = {2019}
}
© 2021 Flora Salim - CRUISE Research Group.