All Outputs (2001)

Global Rate-distortion Optimization of Video-based Point Cloud Compression with Differential Evolution (2021)
Presentation / Conference Contribution
Yuan, H., Hamzaoui, R., Neri, F., Yang, S., & Wang, T. (2022). Global Rate-distortion Optimization of Video-based Point Cloud Compression with Differential Evolution. In 2021 IEEE 23rd International Workshop on Multimedia Signal Processing (MMSP). https://doi.org/10.1109/MMSP53017.2021.9733714

In video-based point cloud compression (V-PCC), one geometry video and one color video are generated from a dynamic point cloud. Then, the two videos are compressed independently using a state-of-the-art video coder. In the Moving Picture Experts Gro... Read More about Global Rate-distortion Optimization of Video-based Point Cloud Compression with Differential Evolution.

The cardboard box study: understanding collaborative data management in the connected home (2021)
Journal Article
Kilic, D., Crabtree, A., McGarry, G., & Goulden, M. (2022). The cardboard box study: understanding collaborative data management in the connected home. Personal and Ubiquitous Computing, 26(1), 155-176. https://doi.org/10.1007/s00779-021-01655-9

The home is a site marked by the increasing collection and use of personal data, whether online or from connected devices. This trend is accompanied by new data protection regulation and the development of privacy enhancing technologies (PETs) that s... Read More about The cardboard box study: understanding collaborative data management in the connected home.

Assessing the Role of Gaze Tracking in Optimizing Humans-In-The-Loop Telerobotic Operation Using Multimodal Feedback (2021)
Journal Article
Bolarinwa, J., Eimontaite, I., Mitchell, T., Dogramadzi, S., & Caleb-Solly, P. (2021). Assessing the Role of Gaze Tracking in Optimizing Humans-In-The-Loop Telerobotic Operation Using Multimodal Feedback. Frontiers in Robotics and AI, 8, Article 578596. https://doi.org/10.3389/frobt.2021.578596

A key challenge in achieving effective robot teleoperation is minimizing teleoperators’ cognitive workload and fatigue. We set out to investigate the extent to which gaze tracking data can reveal how teleoperators interact with a system. In this stud... Read More about Assessing the Role of Gaze Tracking in Optimizing Humans-In-The-Loop Telerobotic Operation Using Multimodal Feedback.

Comparative analysis of selection hyper-heuristics for real-world multi-objective optimization problems (2021)
Journal Article
de Carvalho, V. R., Özcan, E., & Sichman, J. S. (2021). Comparative analysis of selection hyper-heuristics for real-world multi-objective optimization problems. Applied Sciences, 11(19), Article 9153. https://doi.org/10.3390/app11199153

As exact algorithms are unfeasible to solve real optimization problems, due to their computational complexity, meta-heuristics are usually used to solve them. However, choosing a meta-heuristic to solve a particular optimization problem is a non-triv... Read More about Comparative analysis of selection hyper-heuristics for real-world multi-objective optimization problems.

Comparison of heuristics and metaheuristics for topology optimisation in acoustic porous materials (2021)
Journal Article
Ramamoorthy, V. T., Özcan, E., Parkes, A. J., Sreekumar, A., Jaouen, L., & Bécot, F. (2021). Comparison of heuristics and metaheuristics for topology optimisation in acoustic porous materials. Journal of the Acoustical Society of America, 150(4), 3164-3175. https://doi.org/10.1121/10.0006784

When designing sound packages, often fully filling the available space with acoustic materials is not the most absorbing solution. Better solutions can be obtained by creating cavities of air pockets, but determining the most optimal shape and topolo... Read More about Comparison of heuristics and metaheuristics for topology optimisation in acoustic porous materials.

Model-Based Rate-Distortion Optimized Video-Based Point Cloud Compression with Differential Evolution (2021)
Presentation / Conference Contribution
Yuan, H., Hamzamoui, R., Neri, F., & Yang, S. (2021). Model-Based Rate-Distortion Optimized Video-Based Point Cloud Compression with Differential Evolution. In Image and Graphics (735-747). https://doi.org/10.1007/978-3-030-87355-4_61

The Moving Picture Experts Group (MPEG) video-based point cloud compression (V-PCC) standard encodes a dynamic point cloud by first converting it into one geometry video and one color video and then using a video coder to compress the two video seque... Read More about Model-Based Rate-Distortion Optimized Video-Based Point Cloud Compression with Differential Evolution.

Understanding User Perceptions of Trustworthiness in E-Recruitment Systems (2021)
Journal Article
Ogunniye, G., Legastelois, B., Rovatsos, M., Dowthwaite, L., Portillo, V., Perez Vallejos, E., …Jirotka, M. (2021). Understanding User Perceptions of Trustworthiness in E-Recruitment Systems. IEEE Internet Computing, 25(6), 23-32. https://doi.org/10.1109/mic.2021.3115670

Algorithmic systems are increasingly deployed to make decisions that people used to make. Perceptions of these systems can significantly influence their adoption, yet, broadly speaking, users’ understanding of the internal working of these systems is... Read More about Understanding User Perceptions of Trustworthiness in E-Recruitment Systems.

Evolutionary algorithms for multi-objective flexible job shop cell scheduling (2021)
Journal Article
Deliktaş, D., Özcan, E., Ustun, O., & Torkul, O. (2021). Evolutionary algorithms for multi-objective flexible job shop cell scheduling. Applied Soft Computing, 113(Part A), Article 107890. https://doi.org/10.1016/j.asoc.2021.107890

The multi-objective flexible job shop scheduling in a cellular manufacturing environment is a challenging real-world problem. This recently introduced scheduling problem variant considers exceptional parts, intercellular moves, intercellular transpor... Read More about Evolutionary algorithms for multi-objective flexible job shop cell scheduling.

Public Adoption of and Trust in the NHS COVID-19 Contact Tracing App in the United Kingdom: Quantitative Online Survey Study (2021)
Journal Article
Dowthwaite, L., Fischer, J., Perez Vallejos, E., Portillo, V., Nichele, E., Goulden, M., & McAuley, D. (2021). Public Adoption of and Trust in the NHS COVID-19 Contact Tracing App in the United Kingdom: Quantitative Online Survey Study. Journal of Medical Internet Research, 23(9), Article e29085. https://doi.org/10.2196/29085

Background: Digital contact tracing is employed to monitor and manage the spread of Covid-19. However, to be effective the system must be adopted by a substantial proportion of the population. Studies of (mostly hypothetical) contact tracing apps sho... Read More about Public Adoption of and Trust in the NHS COVID-19 Contact Tracing App in the United Kingdom: Quantitative Online Survey Study.

Pseudonymisation of neuroimages and data protection: Increasing access to data while retaining scientific utility (2021)
Journal Article
Eke, D., Aasebø, I. E., Akintoye, S., Knight, W., Karakasidis, A., Mikulan, E., …Zehl, L. (2021). Pseudonymisation of neuroimages and data protection: Increasing access to data while retaining scientific utility. NeuroImage: Reports, 1(4), Article 100053. https://doi.org/10.1016/j.ynirp.2021.100053

For a number of years, facial features removal techniques such as ‘defacing’, ‘skull stripping’ and ‘face masking/blurring’, were considered adequate privacy preserving tools to openly share brain images. Scientifically, these measures were already a... Read More about Pseudonymisation of neuroimages and data protection: Increasing access to data while retaining scientific utility.

Designing an Adaptive Embodied Conversational Agent for Health Literacy: a User Study (2021)
Presentation / Conference Contribution
Egede, J., Galvez Trigo, M. J., Hazzard, A., Porcheron, M., Bodiaj, E., Fischer, J. E., …Valstar, M. (2021). Designing an Adaptive Embodied Conversational Agent for Health Literacy: a User Study. In IVA '21: Proceedings of the 21st ACM International Conference on Intelligent Virtual Agents (112-119). https://doi.org/10.1145/3472306.3478350

Access to healthcare advice is crucial to promote healthy societies. Many factors shape how access might be constrained, such as economic status, education or, as the COVID-19 pandemic has shown, remote consultations with health practitioners. Our wo... Read More about Designing an Adaptive Embodied Conversational Agent for Health Literacy: a User Study.

Design and Evaluation of Virtual Human Mediated Tasks for Assessment of Depression and Anxiety (2021)
Presentation / Conference Contribution
Egede, J. O., Jaiswal, S., Galvez Trigo, M. J., Price, D., Elliot, N., Nixon, N., …Valstar, M. (2021). Design and Evaluation of Virtual Human Mediated Tasks for Assessment of Depression and Anxiety. In IVA '21: Proceedings of the 21st ACM International Conference on Intelligent Virtual Agents (52-59). https://doi.org/10.1145/3472306.3478361

Virtual human technologies are now being widely explored as therapy tools for mental health disorders including depression and anxiety. These technologies leverage the ability of the virtual agents to engage in naturalistic social interactions with a... Read More about Design and Evaluation of Virtual Human Mediated Tasks for Assessment of Depression and Anxiety.

Capturing richer information: On establishing the validity of an interval-valued survey response mode (2021)
Journal Article
Ellerby, Z., Wagner, C., & Broomell, S. B. (2022). Capturing richer information: On establishing the validity of an interval-valued survey response mode. Behavior Research Methods, 54, 1240-1262. https://doi.org/10.3758/s13428-021-01635-0

Obtaining quantitative survey responses that are both accurate and informative is crucial to a wide range of fields. Traditional and ubiquitous response formats such as Likert and visual analogue scales require condensation of responses into discrete... Read More about Capturing richer information: On establishing the validity of an interval-valued survey response mode.

ENIGMA—A Centralised Supervisory Controller for Enhanced Onboard Electrical Energy Management with Model in the Loop Demonstration (2021)
Journal Article
Sumsurooah, S., He, Y., Torchio, M., Kouramas, K., Guida, B., Cuomo, F., …Cavallo, A. (2021). ENIGMA—A Centralised Supervisory Controller for Enhanced Onboard Electrical Energy Management with Model in the Loop Demonstration. Energies, 14(17), Article 5518. https://doi.org/10.3390/en14175518

A centralised smart supervisor (CSS) controller with enhanced electrical energy management (E2-EM) capability has been developed for an Iron Bird Electrical Power Generation and Distribution System (EPGDS) within the Clean Sky 2 ENhanced electrical e... Read More about ENIGMA—A Centralised Supervisory Controller for Enhanced Onboard Electrical Energy Management with Model in the Loop Demonstration.

Hyper-heuristic approach: automatically designing adaptive mutation operators for evolutionary programming (2021)
Journal Article
Hong, L., Woodward, J. R., Özcan, E., & Liu, F. (2021). Hyper-heuristic approach: automatically designing adaptive mutation operators for evolutionary programming. Complex and Intelligent Systems, 7(6), 3135-3163. https://doi.org/10.1007/s40747-021-00507-6

Genetic programming (GP) automatically designs programs. Evolutionary programming (EP) is a real-valued global optimisation method. EP uses a probability distribution as a mutation operator, such as Gaussian, Cauchy, or Lévy distribution. This study... Read More about Hyper-heuristic approach: automatically designing adaptive mutation operators for evolutionary programming.

What happens when patients say “no” to offers of referral for weight loss? - Results and recommendations from a conversation analysis of primary care interactions (2021)
Journal Article
Albury, C., Webb, H., Ziebland, S., Aveyard, P., & Stokoe, E. (2022). What happens when patients say “no” to offers of referral for weight loss? - Results and recommendations from a conversation analysis of primary care interactions. Patient Education and Counseling, 105(3), 524-533. https://doi.org/10.1016/j.pec.2021.08.017

Objective: Guidelines recommend that clinicians should offer patients with obesity referrals to weight management services. However, clinicians and patients worry that such conversations will generate friction, and the risk of this is greatest when p... Read More about What happens when patients say “no” to offers of referral for weight loss? - Results and recommendations from a conversation analysis of primary care interactions.

Soma design to enhance aircraft passenger comfort (2021)
Presentation / Conference Contribution
Sharafkhani, M., Tennent, P., Argyle, E., & Cobb, S. (2021). Soma design to enhance aircraft passenger comfort

Aircraft passengers can become uncomfortable while seated because of the restricted physical space. This work aims to investigate a new strategy for designing interventions that can be used to encourage aircraft passengers to move more while seated a... Read More about Soma design to enhance aircraft passenger comfort.

Calculating dependently-typed compilers (functional pearl) (2021)
Journal Article
Pickard, M., & Hutton, G. (2021). Calculating dependently-typed compilers (functional pearl). Proceedings of the ACM on Programming Languages, 5(ICFP), 1-27. https://doi.org/10.1145/3473587

Compilers are difficult to write, and difficult to get right. Bahr and Hutton recently developed a new technique for calculating compilers directly from specifications of their correctness, which ensures that the resulting compilers are correct-by-co... Read More about Calculating dependently-typed compilers (functional pearl).

Covariance Pattern Search with Eigenvalue-determined Radii (2021)
Presentation / Conference Contribution
Neri, F., & Zhou, Y. (2021). Covariance Pattern Search with Eigenvalue-determined Radii. In Proceedings of the IEEE Congress on Evolutionary Computation 2021 (335-342). https://doi.org/10.1109/CEC45853.2021.9505002

Effective implementations of Memetic Algorithms often integrate, within their design, problem-based pieces of information. When no information is known, an efficient MA can still be designed after a preliminary analysis of the problem. This approach... Read More about Covariance Pattern Search with Eigenvalue-determined Radii.

Intent-Aware Predictive Haptic Guidance and its Application to Shared Control Teleoperation (2021)
Presentation / Conference Contribution
Ly, K. T., Poozhiyil, M., Pandya, H., Neumann, G., & Kucukyilmaz, A. (2021). Intent-Aware Predictive Haptic Guidance and its Application to Shared Control Teleoperation. In 2021 30th IEEE International Conference on Robot & Human Interactive Communication (RO-MAN) (565-572). https://doi.org/10.1109/RO-MAN50785.2021.9515326

This paper presents a haptic shared control paradigm that modulates the level of robotic guidance, based on predictions of human motion intentions. The proposed method incorporates robot trajectories learned from human demonstrations and dynamically... Read More about Intent-Aware Predictive Haptic Guidance and its Application to Shared Control Teleoperation.