arber shabani | Brunel University (original) (raw)
Papers by arber shabani
The perceptual experiences which occur at a product or service interface are fundamental towards ... more The perceptual experiences which occur at a product or service interface are fundamental towards cognitive and emotional engagement. The current study investigates what form of correlation may exist between measures of the valence and the arousal dimensions of the human affective response to steering wheel stimuli felt at driver's hands and vibration intensity metrics. Seventeen steering wheel signals from mid-sized European automobiles and European roads were selected such that the widest possible operating envelope could be achieved. A laboratory-based experiment was performed with 30 participants who were presented the seventeen signals and asked to rate their feelings of emotional valence and emotional arousal by means of a Self- Assessment Manikin (SAM) scale. The results suggest that while vibration intensity plays a significant role in eliciting emotional feelings, there are also other stimuli properties which influence the human emotional response to steering wheel vibra...
Building exceptional user experiences means designing for users of all digital skill level. An in... more Building exceptional user experiences means designing for users of all digital skill level. An increased emphasis on personalization and, with it, adaptive interfaces exacerbates the necessity for digital inclusivity. However, how can designers ensure that they are meeting the needs of those with high and low skillsets? The research reported here employed semi-structured interviews to explore whether the Digital Native Assessment Scale (DNAS) can be used as a tool to classify users and act as a surrogate for predicting their digital profiles. Sixteen participants answered questions about their everyday technology behaviours, as well as their attitudes towards technology. Nine themes emerged through thematic analysis, however only one of these themes was associated with an even, dichotomous split between high scorers on the DNAS and low scorers on the DNAS. Therefore, the DNAS only clearly indicated digital behaviour in a limited number of issues and cannot be relied upon as a proxy ...
Proceedings of the 10th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, 2018
Predictive touch is an HMI technology that relies on inferring, early in the pointing gesture, th... more Predictive touch is an HMI technology that relies on inferring, early in the pointing gesture, the interface item a driver or passenger intends to select on an in-vehicle display [1, 2]. It simplifies and expedites the selection task, thereby reducing the associated interaction effort. This paper presents two studies on drivers using predictive touch and focuses on evaluating the best means to facilitate selecting the intended on-display item. This includes immediate midair selection with the system autonomously auto-selecting the predicted interface component, hover/dwell and drivers pressing a button on the steering wheel to execute the selection action. These were arrived at in an expert workshop study with twelve participants. The results of the subsequent evaluation study with twenty four participants demonstrate, using quantitative and qualitative measures, that immediate mid-air selection is a promising assistive scheme, where drivers need not touch a physical surface to select interface components, thus touch-free control.
Proceedings of the 11th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, 2019
The visual demand of finger-touch based interactions with touch screens has been increasingly mod... more The visual demand of finger-touch based interactions with touch screens has been increasingly modelled using Fitts' Law. With respect to driving, these models facilitate the prediction of mean glance duration and total glance time with an index of difficulty based on target size and location. Strong relationships between measures have been found in the controlled conditions of driving simulators. The present study aimed to validate such models in naturalistic conditions. Nineteen experienced drivers carried out a range of touchscreen button-press tasks in an instrumented car on a UK motorway. In contrast with previous simulator-based work, our on-road data produced much weaker relationships between the index of difficulty and glance times. The model improved by focusing on tasks that required one glance only. Limitations of Fitts' Law in the more complex and dynamic real-world driving environment are discussed, as are the potential drawbacks of driving simulators for conducting visual demand research.
International Journal of Vehicle Noise and Vibration, 2013
This study investigates what form of correlation may exist between measures of the valence and th... more This study investigates what form of correlation may exist between measures of the valence and the arousal dimensions of the human emotional response to steering wheel vibration and the vibration intensity metrics obtained by means of the unweighted and the frequency weighted root mean square (r.m.s.). A laboratory experiment was performed with 30 participants who were presented seventeen acceleration time histories in random order and asked to rate their emotional feelings of valence and arousal using a self-assessment manikin (SAM) scale. The results suggest a highly linear correlation between the unweighted, Wh weighted and Ws weighted vibration intensity metrics and the arousal measures of the human emotional response. The results also suggest that while vibration intensity plays a significant role in eliciting emotional feelings, there are other factors which influence the human emotional response to steering wheel vibration such as the presence of high peaks or high frequency band amplitudes.
International Journal of Mobile Human Computer Interaction, 2019
Predictive touch technology aims to improve the usability and performance of in-vehicle displays ... more Predictive touch technology aims to improve the usability and performance of in-vehicle displays under the influence of perturbations due to the road and driving conditions. It fundamentally relies on predicting and early in the freehand pointing movement, the interface item the user intends to select, using a novel Bayesian inference framework. This article focusses on evaluating facilitation schemes for selecting the predicted interface component whilst driving, and without physically touching the display, thus touchless. Initially, several viable schemes were identified in a brainstorming session followed by an expert workshop with 12 participants. A simulator study with 24 participants using a prototype predictive touch system was then conducted. A number of collected quantitative and qualitative measures show that immediate mid-air selection, where the system autonomously auto-selects the predicted interface component, may be the most promising strategy for predictive touch.
International Journal of Vehicle Noise and Vibration, 2013
The perceptual experiences which occur at a product or service interface are fundamental towards ... more The perceptual experiences which occur at a product or service interface are fundamental towards cognitive and emotional engagement. The current study investigates what form of correlation may exist between measures of the valence and the arousal dimensions of the human affective response to steering wheel stimuli felt at driver's hands and vibration intensity metrics. Seventeen steering wheel signals from mid-sized European automobiles and European roads were selected such that the widest possible operating envelope could be achieved. A laboratory-based experiment was performed with 30 participants who were presented the seventeen signals and asked to rate their feelings of emotional valence and emotional arousal by means of a Self- Assessment Manikin (SAM) scale. The results suggest that while vibration intensity plays a significant role in eliciting emotional feelings, there are also other stimuli properties which influence the human emotional response to steering wheel vibra...
Building exceptional user experiences means designing for users of all digital skill level. An in... more Building exceptional user experiences means designing for users of all digital skill level. An increased emphasis on personalization and, with it, adaptive interfaces exacerbates the necessity for digital inclusivity. However, how can designers ensure that they are meeting the needs of those with high and low skillsets? The research reported here employed semi-structured interviews to explore whether the Digital Native Assessment Scale (DNAS) can be used as a tool to classify users and act as a surrogate for predicting their digital profiles. Sixteen participants answered questions about their everyday technology behaviours, as well as their attitudes towards technology. Nine themes emerged through thematic analysis, however only one of these themes was associated with an even, dichotomous split between high scorers on the DNAS and low scorers on the DNAS. Therefore, the DNAS only clearly indicated digital behaviour in a limited number of issues and cannot be relied upon as a proxy ...
Proceedings of the 10th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, 2018
Predictive touch is an HMI technology that relies on inferring, early in the pointing gesture, th... more Predictive touch is an HMI technology that relies on inferring, early in the pointing gesture, the interface item a driver or passenger intends to select on an in-vehicle display [1, 2]. It simplifies and expedites the selection task, thereby reducing the associated interaction effort. This paper presents two studies on drivers using predictive touch and focuses on evaluating the best means to facilitate selecting the intended on-display item. This includes immediate midair selection with the system autonomously auto-selecting the predicted interface component, hover/dwell and drivers pressing a button on the steering wheel to execute the selection action. These were arrived at in an expert workshop study with twelve participants. The results of the subsequent evaluation study with twenty four participants demonstrate, using quantitative and qualitative measures, that immediate mid-air selection is a promising assistive scheme, where drivers need not touch a physical surface to select interface components, thus touch-free control.
Proceedings of the 11th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, 2019
The visual demand of finger-touch based interactions with touch screens has been increasingly mod... more The visual demand of finger-touch based interactions with touch screens has been increasingly modelled using Fitts' Law. With respect to driving, these models facilitate the prediction of mean glance duration and total glance time with an index of difficulty based on target size and location. Strong relationships between measures have been found in the controlled conditions of driving simulators. The present study aimed to validate such models in naturalistic conditions. Nineteen experienced drivers carried out a range of touchscreen button-press tasks in an instrumented car on a UK motorway. In contrast with previous simulator-based work, our on-road data produced much weaker relationships between the index of difficulty and glance times. The model improved by focusing on tasks that required one glance only. Limitations of Fitts' Law in the more complex and dynamic real-world driving environment are discussed, as are the potential drawbacks of driving simulators for conducting visual demand research.
International Journal of Vehicle Noise and Vibration, 2013
This study investigates what form of correlation may exist between measures of the valence and th... more This study investigates what form of correlation may exist between measures of the valence and the arousal dimensions of the human emotional response to steering wheel vibration and the vibration intensity metrics obtained by means of the unweighted and the frequency weighted root mean square (r.m.s.). A laboratory experiment was performed with 30 participants who were presented seventeen acceleration time histories in random order and asked to rate their emotional feelings of valence and arousal using a self-assessment manikin (SAM) scale. The results suggest a highly linear correlation between the unweighted, Wh weighted and Ws weighted vibration intensity metrics and the arousal measures of the human emotional response. The results also suggest that while vibration intensity plays a significant role in eliciting emotional feelings, there are other factors which influence the human emotional response to steering wheel vibration such as the presence of high peaks or high frequency band amplitudes.
International Journal of Mobile Human Computer Interaction, 2019
Predictive touch technology aims to improve the usability and performance of in-vehicle displays ... more Predictive touch technology aims to improve the usability and performance of in-vehicle displays under the influence of perturbations due to the road and driving conditions. It fundamentally relies on predicting and early in the freehand pointing movement, the interface item the user intends to select, using a novel Bayesian inference framework. This article focusses on evaluating facilitation schemes for selecting the predicted interface component whilst driving, and without physically touching the display, thus touchless. Initially, several viable schemes were identified in a brainstorming session followed by an expert workshop with 12 participants. A simulator study with 24 participants using a prototype predictive touch system was then conducted. A number of collected quantitative and qualitative measures show that immediate mid-air selection, where the system autonomously auto-selects the predicted interface component, may be the most promising strategy for predictive touch.
International Journal of Vehicle Noise and Vibration, 2013