All Outputs (189)

Speaker Identification: Variations of a Human voice (2020)
Conference Proceeding
Kinkiri, S., & Keates, S. (2020). Speaker Identification: Variations of a Human voice. In 2020 International Conference on Advances in Computing and Communication Engineering (ICACCE). https://doi.org/10.1109/icacce49060.2020.9154998

Communication is an essential part of human life. We humans use speech (words) to convey information to each other. Vocal tract characteristics in a human voice help identify a speaker. However, human speech signals are language independent and infor... Read More about Speaker Identification: Variations of a Human voice.

Assistive Technology for the Visually Impaired: Optimizing Frame Rate (Freshness) to Improve the Performance of Real-Time Objects Detection Application (2020)
Conference Proceeding
Barakat, B., Steponenaite, A., Lall, G. S., Arshad, K., Wassell, I. J., & Keates, S. (2020). Assistive Technology for the Visually Impaired: Optimizing Frame Rate (Freshness) to Improve the Performance of Real-Time Objects Detection Application. In Universal Access in Human-Computer Interaction. Applications and Practice: Proceedings, Part II (479-492). https://doi.org/10.1007/978-3-030-49108-6_34

It has been 100+ years since the world’s first commercial radio station started. This century witnessed several astonishing inventions (e.g. the computer, internet and mobiles) that have shaped the way we work and socialize. With the start of a new d... Read More about Assistive Technology for the Visually Impaired: Optimizing Frame Rate (Freshness) to Improve the Performance of Real-Time Objects Detection Application.

Phonemes: An Explanatory Study Applied to Identify a Speaker (2020)
Conference Proceeding
Kinkiri, S., Barakat, B., & Keates, S. (2020). Phonemes: An Explanatory Study Applied to Identify a Speaker. In Machine Learning, Image Processing, Network Security and Data Sciences (58-68). https://doi.org/10.1007/978-981-15-6318-8_6

Speaker Identification (SI) is a process of identifying a speaker automatically via a machine using the speaker’s voice. In SI, one speaker’s voice is compared with n- number of speakers’ templates within the reference database to find the best match... Read More about Phonemes: An Explanatory Study Applied to Identify a Speaker.

A 10:1 Bandwidth Cryogenic Quadruple-Ridged Flared Horn Design for Reflector Antennas in Radio Astronomy (2020)
Journal Article
Ma, Y., See, C. H., Pang, F., Wu, D., Liu, D., Abidin, Z. Z., …Abd-Alhameed, R. A. (2020). A 10:1 Bandwidth Cryogenic Quadruple-Ridged Flared Horn Design for Reflector Antennas in Radio Astronomy. IEEE Access, 8, 81101-81115. https://doi.org/10.1109/ACCESS.2020.2991350

A two port 2.4 to 24 GHz cryogenic Quadruple-Ridged Flared Horn (QRFH) Feed with 10:1 impedance bandwidth is selected for presentation and investigation in this paper. The antenna geometry is formed by using simulation-based optimization which s... Read More about A 10:1 Bandwidth Cryogenic Quadruple-Ridged Flared Horn Design for Reflector Antennas in Radio Astronomy.

How to Measure the Average and Peak Age of Information in Real Networks? (2019)
Conference Proceeding
Barakat, B., Yassine, H., Keates, S., Wassell, I., & Arshad, K. (2019). How to Measure the Average and Peak Age of Information in Real Networks?.

The Age of information (AoI) was proposed in the literature to quantify the freshness of information. The majority of the work done in this area has theoretically evaluated AoI and its Peak (PAoI). In this paper, a method for obtaining the value of A... Read More about How to Measure the Average and Peak Age of Information in Real Networks?.

Modelling IoT devices communication employing representative operation modes to reveal traffic generation characteristics (2019)
Journal Article
Barakat, B., Keates, S., Wassell, I. J., & Arshad, K. (2021). Modelling IoT devices communication employing representative operation modes to reveal traffic generation characteristics. International Journal of Parallel, Emergent and Distributed Systems, 36(2), 117-129. https://doi.org/10.1080/17445760.2019.1649402

Several traffic models for the Internet of Things (IoT) have been proposed in the literature. However, they can be considered as heuristic models since they only reflect the stochastic characteristic of the generated traffic. In this paper, we propos... Read More about Modelling IoT devices communication employing representative operation modes to reveal traffic generation characteristics.

Adaptive Status Arrivals Policy (ASAP) Delivering Fresh Information (Minimise Peak Age) in Real World Scenarios (2019)
Conference Proceeding
Barakat, B., Keates, S., Wassell, I., & Arshad, K. (2019). Adaptive Status Arrivals Policy (ASAP) Delivering Fresh Information (Minimise Peak Age) in Real World Scenarios. In Universal Access in Human-Computer Interaction. Multimodality and Assistive Environments (419-430). https://doi.org/10.1007/978-3-030-23563-5_33

Real-time systems make their decisions based on information communicated from sensors. Consequently, delivering information in a timely manner is critical to such systems. In this paper, a policy for delivering fresh information (or minimising the Pe... Read More about Adaptive Status Arrivals Policy (ASAP) Delivering Fresh Information (Minimise Peak Age) in Real World Scenarios.

Universal Access: The Challenges Ahead (2019)
Conference Proceeding
Keates, S. (2019). Universal Access: The Challenges Ahead. In Universal Access in Human-Computer Interaction. Theory, Methods and Tools (100-112). https://doi.org/10.1007/978-3-030-23560-4_8

It is approaching 20 years since the first issue of the International Journal on Universal Access was published and also that the first International Conference on Universal Access in Human-Computer Interaction was held. This paper reflects on how th... Read More about Universal Access: The Challenges Ahead.

Is the Zero-Wait Policy Always Optimum for Information Freshness (Peak Age) or Throughput? (2019)
Journal Article
Barakat, B., Keates, S., Wassell, I., & Arshad, K. (2019). Is the Zero-Wait Policy Always Optimum for Information Freshness (Peak Age) or Throughput?. IEEE Communications Letters, 23(6), 987-990. https://doi.org/10.1109/LCOMM.2019.2907935

The Zero-Wait (ZW) policy is widely held to achieve maximum information 'freshness', i.e., to achieve minimum Peak Age (PA) and maximum throughput, for real-time Internet-of-Things applications. In this paper, it was shown through a series of experim... Read More about Is the Zero-Wait Policy Always Optimum for Information Freshness (Peak Age) or Throughput?.

Deriving Machine to Machine (M2M) Traffic Model from Communication Model (2019)
Conference Proceeding
Barakat, B., Keates, S., Arshad, K., & Wassell, I. J. (2019). Deriving Machine to Machine (M2M) Traffic Model from Communication Model. In The Fifth International Symposium on Innovation in Information and Communication Technology (ISIICT 2018) (27-31). https://doi.org/10.1109/ISIICT.2018.8613727

The typical traffic models proposed in literature can be considered as heuristic models since they only reflect the stochastic characteristic of the generated traffic. In this paper, we propose a model for M2M communications that generates the traffi... Read More about Deriving Machine to Machine (M2M) Traffic Model from Communication Model.

The benefits of contextual information for speech recognition systems (2018)
Conference Proceeding
Kinch, M. W., Melis, W. J., & Keates, S. (2018). The benefits of contextual information for speech recognition systems. In The 10th Computer Science and Electronic Engineering Conference (CEEC). https://doi.org/10.1109/CEEC.2018.8674204

This paper demonstrates the significance of using contextual information in machine learning and speech recognition. While the benefits of contextual information in human communication are widely known, their significance is rarely explored or discus... Read More about The benefits of contextual information for speech recognition systems.

When Universal Access is not quite universal enough: Case studies and lessons to be learned (2018)
Journal Article
Keates, S. (2020). When Universal Access is not quite universal enough: Case studies and lessons to be learned. Universal Access in the Information Society, 19, 133-144. https://doi.org/10.1007/s10209-018-0636-2

While the theory of designing for Universal Access is increasingly understood, there remain persistent issues over realising products and systems that meet the goal of being accessible and usable by the broadest possible set of users. Clearly product... Read More about When Universal Access is not quite universal enough: Case studies and lessons to be learned.

Enhancing Robotic Swarms With Fractal Behaviours to Explore Unknown Enclosed Areas (2018)
Presentation / Conference
Eissa, H., Melis, W. J. C., Keates, S., & Doncheva, R. (2018, June). Enhancing Robotic Swarms With Fractal Behaviours to Explore Unknown Enclosed Areas. Paper presented at 3rd Medway Engineering Conference: Systems: Efficiency, Sustainability and Modelling, University of Greenwich, United Kingdom

Swarm robotics coordinates multiple interacting robots for which it takes inspiration from nature. It has been used in different engineering applications, such as: food searching, path planning, and communication between robots. Additionally, when ro... Read More about Enhancing Robotic Swarms With Fractal Behaviours to Explore Unknown Enclosed Areas.

When Universal Access does not go to plan: Lessons to be learned (2018)
Conference Proceeding
Keates, S. (2018). When Universal Access does not go to plan: Lessons to be learned. In M. Antona, & C. Stephanidis (Eds.), 12th International Conference on Universal Access in Human-Computer Interaction (UAHCI 2018), Proceedings, Part I (75-90). https://doi.org/10.1007/978-3-319-92049-8_6

While the theory of designing for Universal Access is increasingly understood, there remain persistent issues over realising products and systems that meet the goal of being accessible and usable by the broadest possible set of users. Clearly product... Read More about When Universal Access does not go to plan: Lessons to be learned.

Computational Mechanics and the Finite Element Method (2018)
Book Chapter
Okereke, M., & Keates, S. (2018). Computational Mechanics and the Finite Element Method. In S. Choi, H. Duan, Y. Fu, C. Guardiola, & J. Sun (Eds.), Finite Element Applications: A Practical Guide to the FEM Process (3-25). Cham: Springer. https://doi.org/10.1007/978-3-319-67125-3_1

This textbook demonstrates the application of the finite element philosophy to the solution of real-world problems and is aimed at graduate level students, but is also suitable for advanced undergraduate students. An essential part of an engineer?s t... Read More about Computational Mechanics and the Finite Element Method.

Reviewing the current state of machine learning for artificial intelligence with regards to the use of contextual information (2017)
Conference Proceeding
Kinch, M. W., Melis, W. J., & Keates, S. (2017). Reviewing the current state of machine learning for artificial intelligence with regards to the use of contextual information. In The Second Medway Engineering Conference on Systems: Efficiency, Sustainability and Modelling

This paper will consider the current state of Machine Learning for Artificial Intelligence, more specifically for applications, such as: Speech Recognition, Game Playing and Image Processing. The artificial world tends to make limited use of context... Read More about Reviewing the current state of machine learning for artificial intelligence with regards to the use of contextual information.

Machine learning for voice recognition (2017)
Conference Proceeding
Kinkiri, S., Melis, W. J., & Keates, S. (2017). Machine learning for voice recognition. In The Second Medway Engineering Conference on Systems: Efficiency, Sustainability and Modelling

Verbal communication is very important to us humans, but using thisperforming verbal communication to communicateion with machines still faces particular challenges. Therefore, researchers are trying to find ways to make communication with a machine... Read More about Machine learning for voice recognition.

Generalized proportional fair (GPF) scheduler for LTE-A (2017)
Conference Proceeding
Aramide, S. O., Barakat, B., Wang, Y., Keates, S., & Arshad, K. (2017). Generalized proportional fair (GPF) scheduler for LTE-A. In 2017 9th Computer Science and Electronic Engineering (CEEC) (128-132). https://doi.org/10.1109/CEEC.2017.8101612

The growth of wireless traffic and the demand for higher data rates motivated researchers around the world to enhance the Long Term Evolution-Advanced (LTE-A) performance. Recently, a considerable amount of the research had been done to optimise the... Read More about Generalized proportional fair (GPF) scheduler for LTE-A.

Advances in Manufacturing Technology XXXI (2017)
Conference Proceeding
(2017). Advances in Manufacturing Technology XXXI. In X. Gao, M. E. Souri, & S. Keates (Eds.), Proceedings of the 15th International Conference on Manufacturing Research, incorporating the 32nd National Conference on Manufacturing Research

No abstract available. Official url https://www.iospress.nl/book/advances-in-manufacturing-technology-xxxi/

Robotic assistants for universal access (2017)
Conference Proceeding
Keates, S., & Kyberd, P. J. (2017). Robotic assistants for universal access. In UAHCI 2017: Universal Access in Human?Computer Interaction. Human and Technological Environments (527-538). https://doi.org/10.1007/978-3-319-58700-4_43

Much research is now focusing on how technology is moving away from the traditional computer to a range of smart devices in smart environments, the so-called Internet of Things. With this increase in computing power and decrease in form factor, we ar... Read More about Robotic assistants for universal access.