Wireless ranging for contactless cognitive load inference in ubiquitous computing

Pejović, Veljko (avtor), Matkovič, Tilen (avtor), Ciglarič, Mojca (avtor)

Untimely interaction in critical moments, content that does not capture a user’s attention, and missed opportunities for delivering relevant information are just some of the issues caused by ubiquitous computing devices’ inability to understand their users cognitive engagement. However, current means of inferring cognitive load are, with a few exceptions, based on intrusive methods requiring physical contact of the measurement equipment and the user, thus of limited applicability in ubiquitous computing. In this paper we propose Wi-Mind, a system for remote cognitive load assessment through wireless sensing. Wi-Mind is based on a software-defined radio radar that measures sub-millimeter movements related to a person’s breathing and heart beats, which, in turn allows us to infer the person’s cognitive load. We built and tested the system with 23 volunteers engaged in different tasks. Initial results show that while Wi-Mind manages to detect whether one is engaged in a cognitively demanding task, the inference of the exact cognitive load level remains challenging.

• Jezik: Angleški jezik
• Ključne besede: cognitive load, software-defined radio, machine learning
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FRI - Fakulteta za računalništvo in informatiko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: Str. 1849-1873
• Številčenje: Vol. 37, no. 19
• PID: 20.500.12556/RUL-141156
• UDK: 004
• ISSN pri članku: 1044-7318
• DOI: 10.1080/10447318.2021.1913860
• COBISS.SI-ID: 62110979
• Datum objave v RUL: 23.09.2022

Gradivo je del revije

• Naslov: International journal of human-computer interaction
• Skrajšan naslov: Int. j. hum.-comput. interact.
• Založnik: Taylor & Francis
• ISSN: 1044-7318
• COBISS.SI-ID: 683029

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: kognitivna obremenjenost, programski radio, strojno učenje

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0098
• Naslov: Računalniške strukture in sistemi

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: N2-0136
• Naslov: Povečanje učinkovitosti uporabe virov na pametnih telefonih s pomočjo približnega računanja