Dataset

TILES-2018

longitudinal physiologic and behavioral data set of hospital workers

PPGECGIMUUsc isi

TILES-2018 is a longitudinal physiologic and behavioral dataset of hospital workers collected for workplace stress and performance research. Multimodal sensor, environmental, and contextual streams were recorded from hospital nurses and staff at USC Keck Hospital, with daily questionnaire labels. The Scientific Data paper describes 212 participants.

At a glance
Type
Dataset
Licence
Not reported
Access
Not reported
Subjects
212
Signals
PPGECGIMU
PPG sites
None
Setting
Clinical
Wrist
Not reported
Raw waveforms
Not reported
Tasks
Stress
Updated
Oct 27, 2026

Original description

We present a novel longitudinal multimodal corpus of physiological and behavioral data collected from direct clinical providers in a hospital workplace. We designed the study to investigate the use of off-the-shelf wearable and environmental sensors to understand individual-specific constructs such as job performance, interpersonal interaction, and well-being of hospital workers over time in their natural day-to-day job settings. We collected behavioral and physiological data from n  = 212 participants through Internet-of-Things Bluetooth data hubs, wearable sensors (including a wristband, a biometrics-tracking garment, a smartphone, and an audio-feature recorder), together with a battery of surveys to assess personality traits, behavioral states, job performance, and well-being over time. Besides the default use of the data set, we envision several novel research opportunities and potential applications, including multi-modal and multi-task behavioral modeling, authentication through biometrics, and privacy-aware and privacy-preserving machine learning.

Verbatim fromthe publisher's DOI record· Publisher licence: https://creativecommons.org/licenses/by/4.0

TILES-2018: ChatPPG research summary card

Key numbers

212
Subjects
2
Reference labels
STRESS, QUESTIONNAIRE

How it works

How TILES-2018 works: Devices & body sites → Signals recorded → TasksDevices & body sites: None (PPG site). Signals recorded: TILES-2018, 212 subjects, signals PPG, ECG, IMU. Tasks: Stress.Devices & body sitesNone: PPG siteNonePPG siteSignals recordedTILES-2018212 subjectsPPGECGxyzIMUTasksStressStress
Reference labels
stress, questionnaire
Device roles
Study wearable (IMU)

Leaderboard rows· 1

All leaderboards
TaskDatasetMetricValueRank
Stress detection (acute / prolonged / affect)TILES-2018Accuracy ↑0.631#1 / 1

Models trained or evaluated on it· 1

Papers using it· 1

FAQ

How many subjects are in TILES-2018?

TILES-2018 has data from 212 subjects, as listed in its research record.

What signals does TILES-2018 include?

TILES-2018 includes PPG, IMU and ECG data.

What can TILES-2018 be used for?

Research tasks it supports: stress detection. Reference labels: stress and questionnaire.

How do I get TILES-2018, and what is its licence?

It is available from https://tiles-data.isi.edu/. No licence is recorded for it here, so check the terms on the source page before you use it.

Which models and papers in the ChatPPG research hub use TILES-2018?

The hub links it to 1 paper, including "Beyond Latent Personalization: Integrating HRV-Conditioned Personalization via LLM for Interpretable Stress Detection". They are listed under Related on this page.

Cite

APA

TILES-2018 [Data set]. (n.d.). usc-isi. https://doi.org/10.1038/s41597-020-00655-3

BibTeX

@misc{tiles2018tiles2018,
  title         = {{TILES-2018}},
  howpublished  = {usc-isi},
  doi           = {10.1038/s41597-020-00655-3}
}

Built from the hub record. Check it against the publisher before submitting.

Cite the ChatPPG record

Cite the dated snapshot 2026-10 for a fixed, reproducible version. Please also cite the original publications listed above.

APA

ChatPPG. (2026). TILES-2018: dataset record (Version 2026-10) [Data set]. ChatPPG Research Hub. https://chatppg.com/research/datasets/tiles-2018

BibTeX
@misc{chatppg_dataset_tiles_2018,
  author       = {{ChatPPG}},
  title        = {{TILES-2018: dataset record}},
  year         = {2026},
  month        = oct,
  version      = {2026-10},
  howpublished = {\url{https://chatppg.com/research/datasets/tiles-2018}},
  note         = {ChatPPG Research Hub, Snapshot 2026-10, https://chatppg.com/research/snapshots/2026-10}
}
CITATION.cff
cff-version: 1.2.0
message: "If you use this resource, please cite it as below."
type: dataset
title: "TILES-2018: dataset record"
authors:
  - name: "ChatPPG"
url: "https://chatppg.com/research/datasets/tiles-2018"
repository-artifact: "https://chatppg.com/research/snapshots/2026-10"
version: "2026-10"
date-released: "2026-10-27"

History

  1. Record updated