scholarly journals Sonification of reference markers for auditory graphs: effects on non-visual point estimation tasks

2016 ◽  
Vol 2 ◽  
pp. e51 ◽  
Author(s):  
Oussama Metatla ◽  
Nick Bryan-Kinns ◽  
Tony Stockman ◽  
Fiore Martin
Keyword(s):  
Experimental Design ◽  
Contextual Information ◽  
Point Estimation ◽  
Task Completion ◽  
Trade Off ◽  
Speech Control ◽  
Data Sonification ◽  
Multiple References ◽  
Completion Times ◽  
Reference Markers

Research has suggested that adding contextual information such as reference markers to data sonification can improve interaction with auditory graphs. This paper presents results of an experiment that contributes to quantifying and analysing the extent of such benefits for an integral part of interacting with graphed data: point estimation tasks. We examine three pitch-based sonification mappings; pitch-only, one-reference, and multiple-references that we designed to provide information about distance from an origin. We assess the effects of these sonifications on users’ performances when completing point estimation tasks in a between-subject experimental design against visual and speech control conditions. Results showed that the addition of reference tones increases users accuracy with a trade-off for task completion times, and that the multiple-references mapping is particularly effective when dealing with points that are positioned at the midrange of a given axis.

scholarly journals Sonification of reference markers for auditory graphs: Effects on non-visual point estimation tasks

2015 ◽  
Author(s):  
Oussama Metatla ◽  
Nick Bryan-Kinns ◽  
Tony Stockman ◽  
Fiore Martin
Keyword(s):  
Contextual Information ◽  
Point Estimation ◽  
Task Completion ◽  
Trade Off ◽  
Data Sonification ◽  
Data Point ◽  
Multiple References ◽  
Completion Times ◽  
Reference Markers

Research has suggested that adding contextual information such as reference markers to data sonification can improve interaction with auditory graphs. This paper presents results of an experiment that contributes to quantifying and analysing the extent of such benefits for an integral part of interpreting graphed data: point estimation tasks. We examine three pitch-based sonification mappings; pitch-only, one-reference, and multiple-references that we designed to provide information about distance from an origin and assess their effects on users' performances when completing point estimation tasks. Results showed that the addition of reference tones increases users accuracy with a trade-off for task completion times, and that the multiple-references mapping is particularly effective when dealing with points that are positioned at the midrange of a given axis.

scholarly journals Sonification of reference markers for auditory graphs: Effects on non-visual point estimation tasks

2015 ◽  
Author(s):  
Oussama Metatla ◽  
Nick Bryan-Kinns ◽  
Tony Stockman ◽  
Fiore Martin
Keyword(s):  
Contextual Information ◽  
Point Estimation ◽  
Task Completion ◽  
Trade Off ◽  
Data Sonification ◽  
Data Point ◽  
Multiple References ◽  
Completion Times ◽  
Reference Markers

Research has suggested that adding contextual information such as reference markers to data sonification can improve interaction with auditory graphs. This paper presents results of an experiment that contributes to quantifying and analysing the extent of such benefits for an integral part of interpreting graphed data: point estimation tasks. We examine three pitch-based sonification mappings; pitch-only, one-reference, and multiple-references that we designed to provide information about distance from an origin and assess their effects on users' performances when completing point estimation tasks. Results showed that the addition of reference tones increases users accuracy with a trade-off for task completion times, and that the multiple-references mapping is particularly effective when dealing with points that are positioned at the midrange of a given axis.

The Effects of Practice on Navigation Performance and Mental Workload with a Mirror-In-The-Sky Map

2021 ◽  
Vol 65 (1) ◽  
pp. 1546-1550
Author(s):  
Holland M. Vasquez ◽  
Justin G. Hollands ◽  
Greg A. Jamieson
Keyword(s):  
Task Performance ◽  
Secondary Task ◽  
Mental Workload ◽  
Task Completion ◽  
Practice Performance ◽  
Global Ratings ◽  
Detection Response ◽  
Nasa Tlx ◽  
Response Task ◽  
Completion Times

Some previous research using a new augmented reality map display called Mirror-in-the-Sky (MitS) showed that performance was worse and mental workload (MWL) greater with MitS relative to a track-up map for navigation and wayfinding tasks. The purpose of the current study was to determine—for both MitS and track-up map—how much performance improves and MWL decreases with practice in a simple navigation task. We conducted a three-session experiment in which twenty participants completed a route following task in a virtual environment. Task completion times and collisions decreased, subjective MWL decreased, and secondary task performance improved with practice. The NASA-TLX Global ratings and Detection Response Task Hit Rates showed a larger decrease in MWL with MitS than the track-up map. Additionally, means for performance and workload measures showed that differences between the MitS and track-up map decreased in the first session. In later sessions the differences between the MitS and track-up map were negligible. As such, with practice performance and MWL may be comparable to a traditional track-up map.

Evaluation of Rate-Based, Force-Reflecting Teleoperation in Free Motion and Contact

2000 ◽  
Vol 9 (1) ◽  
pp. 25-36 ◽  
Author(s):  
Robert L. Williams ◽  
Jason M. Henry ◽  
Daniel W. Repperger
Keyword(s):  
Task Performance ◽  
Air Force ◽  
Free Motion ◽  
Effectiveness Evaluation ◽  
Task Completion ◽  
Teleoperation System ◽  
Force Reflection ◽  
Teleoperation Systems ◽  
Contact Tasks ◽  
Completion Times

This research focuses on improved control for force-reflecting teleoperation systems in free motion and contact tasks. Specifically, the Naturally Transitioning Rate-to-Force Controller (NTRFC) is implemented in an Air Force experimental force-reflecting teleoperation system to achieve a unified controller with no mode switches from free motion to contact, and to reduce the wrench exerted on the environment by the slave manipulator during remote teleoperation tasks. In an effectiveness evaluation experiment, the experimental hypothesis is validated: the NTRFC with force reflection performs the best amongst four teleoperation control modes with respect to minimal wrench exertion on the environment. A negligible difference was found in total task-completion times amongst the four modes. The NTRFC with force reflection has the potential to improve task performance in remote, hazardous, teleoperation tasks in which minimal exerted wrench is desirable.

scholarly journals The Relationship between Physical Fitness and Simulated Firefighting Task Performance

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Goris Nazari ◽  
Joy C. MacDermid ◽  
Kathryn E. Sinden ◽  
Tom J. Overend
Keyword(s):  
Heart Rate ◽  
Physical Fitness ◽  
Grip Strength ◽  
Upper Body ◽  
Task Completion ◽  
Body Strength ◽  
Fitness Parameters ◽  
Lower Body Strength ◽  
The Relationship ◽  
Completion Times

The overall aim of this study was to measure the physiological responses of firefighters from a single fire service during simulated functional firefighting tasks and to establish the relationship between physical fitness parameters and task performance. 46 males and 3 females firefighters were recruited. Firefighters’ aerobic capacity levels were estimated using the Modified Canadian Aerobic Fitness Test (mCAFT). Grip strength levels, as a measure of upper body strength levels, were assessed using a calibrated J-Tech dynamometer. The National Institute for Occupational Safety and Health (NIOSH) protocol for the static floor lifting test was used to quantify lower body strength levels. Firefighters then performed two simulated tasks: a hose drag task and a stair climb with a high-rise pack tasks. Pearson’s correlation coefficients (r) were calculated between firefighters’ physical fitness parameters and task completion times. Two separate multivariable enter regression analyses were carried out to determine the predictive abilities of age, sex, muscle strength, and resting heart rate on task completion times. Our results displayed that near maximal heart rates of ≥88% of heart rate maximum were recorded during the two tasks. Correlation (r) ranged from −0.30 to 0.20. For the hose drag task, cardiorespiratory fitness and right grip strength (kg) demonstrated the highest correlations of −0.30 and −0.25, respectively. In predicting hose drag completion times, age and right grip strength scores were shown to be the statistically significant (p<0.05) independent variables in our regression model. In predicting stair climb completion times, age and NIOSH scores were shown to be the statistically significant (p<0.05) independent variables in our regression model. In conclusion, the hose drag and stair climb tasks were identified as physiological demanding tasks. Age, sex, resting heart rate, and upper body/lower body strength levels had similar predictive values on hose drag and stair climb completion times.

Relationships in the Learning Process of Reading Comprehension in Spanish and English

2020 ◽  
pp. 281-301
Author(s):  
Raúl Gutiérrez-Fresneda
Keyword(s):  
Second Language ◽  
Experimental Design ◽  
Learning Process ◽  
Mother Tongue ◽  
Contextual Information ◽  
Complex Task ◽  
Written Information ◽  
Number Of Factors ◽  
Post Test ◽  
Quasi Experimental

English is one of the most studied and used languages worldwide. The process of acquiring reading is a complex task that involves mastering a set of strategies aimed at assimilating written information by the reader. Different studies have shown that the process of understanding reading in the mother tongue has certain similarities with this same learning in English because in both situations semantic and contextual information is used, but there are also several authors who point out that there are distinctions between reading models in a first and second language. This chapter delves into these relationships, which focus on analysing the variables that most influence the learning of comprehensive capacity in Spanish and English. A quasi-experimental design of comparison between groups with pre-test and post-test measurements was used. The study involved 120 students aged between 8 and 9. The results indicate that there are a number of factors that are related in learning to read in Spanish and English.

scholarly journals Self-Adaptation of mHealth Devices: The Case of the Smart Cane Platform

Proceedings ◽  
2019 ◽  
Vol 31 (1) ◽  
pp. 23 ◽  
Author(s):  
Inmaculada Ayala ◽  
Joaquín Ballesteros ◽  
Juan Caro-Romero ◽  
Mercedes Amor ◽  
Lidia Fuentes
Keyword(s):  
Energy Consumption ◽  
Relative Error ◽  
Contextual Information ◽  
Assistive Technologies ◽  
Assistive Devices ◽  
Product Lines ◽  
Trade Off ◽  
Self Adaptation ◽  
Battery Consumption

Nowadays, more than one billion people are in need of one or more assistive technologies, and this number is expected to increase beyond two billion by 2050. The majority of assistive technologies are supported by battery-operated devices like smartphones and wearables. This means that battery weight is an important concern in such assistive devices because it may affect negatively its ergonomics. Saving power in these assistive devices is of utmost importance for its potential twofold benefits: extend the device life and reduce the global warming aggravated by billion of these devices. Dynamic Software Product Lines (DSPLs) are a suitable technology that supports system adaptation, in this case, to reduce energy consumption at runtime, considering contextual information and the current state of the device. However, a reduction in battery consumption could negatively affect other quality of service parameters, like response time. Therefore, it is important to trade-off battery saving and these other concerns. This work illustrates how to approach the self-adaptation of smart assistive devices by means of a DSPL-based strategy that optimizes battery consumption taking into account other QoS parameters at the same time. We illustrate our proposal with a real case study: a Smart Cane that is integrated with a DSPL platform, Tanit. Experimentation shows that it is possible to make a trade-off between different quality concerns (energy consumption and relative error). The results of the experiments allow us to conclude that the Tanit approach elongates battery duration of the Smart Cane in one day (an increase of a 6% with a relative error of 1%), so we improve the user quality of experience and reduce the energy footprint with a reasonable relative error.

Sign in / Sign up

Export Citation Format

Share Document