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444 results on '"Parkinson, Simon"'

1. Cognitive Effort Measures Driven by Fixation Induced Retinal Flow in Visual Scanning Behavior during Virtual Driving

Author

Zhang, Runlin, Xu, Qing, Parkinson, Simon, Schoeffmann, Klaus, and Chen, Yu

Subjects
Computer Science - Human-Computer Interaction, Computer Science - Information Theory
Abstract

In this paper, we consider the problem of visual scanning mechanism underpinning sensorimotor tasks, such as walking and driving, in dynamic environments. We exploit eye tracking data for offering two new cognitive effort measures in visual scanning behavior of virtual driving. By utilizing the retinal flow induced by fixation, two novel measures of cognitive effort are proposed through the importance of grids in the viewing plane and the concept of information quantity, respectively. Psychophysical studies are conducted to reveal the effectiveness of the two proposed measures. Both these two cognitive effort measures have shown their significant correlation with pupil size change. Our results suggest that the quantitative exploitation of eye tracking data provides an effective approach for the evaluation of sensorimotor activities.

Published
2024

5. Introduction

Author

Nikitas, Alexandros, Parkinson, Simon, Vallati, Mauro, Shen, Xuemin Sherman, Series Editor, Parkinson, Simon, editor, Nikitas, Alexandros, editor, and Vallati, Mauro, editor

Published
2024
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10. A Case Study of Using Machine Learning Techniques for COVID-19 Diagnosis

Author

Dinacci, Marco, Chen, Tianhua, Mahmud, Mufti, Parkinson, Simon, Zhong, Ning, Editor-in-Chief, Kikinis, Ron, Editor-in-Chief, Cai, Weidong, Series Editor, Müller, Henning, Series Editor, Onoe, Hirotaka, Series Editor, Pujol, Sonia, Series Editor, Yu, Philip S., Series Editor, Chen, Tianhua, editor, Carter, Jenny, editor, Mahmud, Mufti, editor, and Khuman, Arjab Singh, editor

Published
2022
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16. The Emerging Challenges of Wearable Biometric Cryptosystems.

Author

Ajlan, Khalid Al, Alsboui, Tariq, Alshaikh, Omar, Inuwa-Dute, Isa, Khan, Saad, and Parkinson, Simon

Subjects
EYE tracking, DATA encryption, EVIDENCE gaps, WEARABLE technology, CRYPTOSYSTEMS
Abstract

Cryptographic key generation and data encryption and decryption using wearable biometric technologies is an emerging research area with significant potential for authentication and communication security. The research area is rapidly developing, and a comprehensive review of recently published literature is necessary to establish emerging challenges. This research article aims to critically investigate and synthesize current research using biometric cryptosystems that use behavior or medico-chemical characteristics, ranging from gate analysis to gaze tracking. The study will summarize the state of knowledge, identify critical research gaps, and provide insight into promising future implications and applications that can enable the realization of user-specific and resilient solutions for authentication and secure communication demands. [ABSTRACT FROM AUTHOR]

Published
2024
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20. Identifying File Interaction Patterns in Ransomware Behaviour

Author

Grant, Liam, Parkinson, Simon, Rak, Jacek, Series Editor, Kantarci, Burak, Editorial Board Member, Oki, Eiji, Editorial Board Member, Sammes, A.J., Series Editor, Popescu, Adrian, Editorial Board Member, Shen, Gangxiang, Editorial Board Member, Parkinson, Simon, editor, Crampton, Andrew, editor, and Hill, Richard, editor

Published
2018
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25. Classifying Ransomware Using Machine Learning Algorithms

Author

Egunjobi, Samuel, Parkinson, Simon, Crampton, Andrew, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Yin, Hujun, editor, Camacho, David, editor, Tino, Peter, editor, Tallón-Ballesteros, Antonio J., editor, Menezes, Ronaldo, editor, and Allmendinger, Richard, editor

Published
2019
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32. A Novel Software Tool for Analysing NT File System Permissions

Author

Parkinson, Simon and Crampton, Andrew

Subjects
Computer Science - Software Engineering
Abstract

Administrating and monitoring New Technology File System (NTFS) permissions can be a cumbersome and convoluted task. In today's data rich world there has never been a more important time to ensure that data is secured against unwanted access. This paper identifies the essential and fundamental requirements of access control, highlighting the main causes of their misconfiguration within the NTFS. In response, a number of features are identified and an efficient, informative and intuitive software-based solution is proposed for examining file system permissions. In the first year that the software has been made freely available it has been downloaded and installed by over four thousand users

Published
2013
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35. Construction of machine tool calibration plans using domain-independent automated planning

Author

Parkinson, Simon, Longstaff, Andrew, and Allen, Gary

Subjects
621.9, TJ Mechanical engineering and machinery
Abstract

The evolution in precision manufacturing has resulted in the requirement to produce and maintain more accurate machine tools. This new requirement coupled with desire to reduce machine tool downtime places emphasis on the calibration procedure during which the machine's capabilities are assessed. Machine tool downtime can be as much as $120 per hour and is significant for manufacturers because the machine will be unavailable for manufacturing use, therefore wasting the manufacturer's time and potentially increasing lead-times for clients. In addition to machine tool downtime, the uncertainty of measurement, due to the schedule of the calibration plan, has significant implications on tolerance conformance, resulting in an increased possibility of false acceptance and rejection of machined parts. Currently calibrations are planned based on expert knowledge and there are no intelligent tools aiding to produce optimal calibration plans. This thesis describes a method of intelligently constructing calibration plans, optimising to reduce machine tool downtime and the estimated uncertainty of measurement due to the plan schedule. This resulted in the production of a novel, extensible domain model that encodes the decision making capabilities of a subject expert. Encoding the knowledge in PDDL2 requires the discretization of non-linear resources, such as continuous temperature change. Empirical analysis has shown that when this model is used alongside state-of-the-art automated planning tools, it is possible to achieve a reduction in machine tool downtime greater than 10% (12:30 to 11:18) over expert generated plans. In addition, the estimated uncertainty due to the schedule of the plan can be reduced by 59% (48 µm to 20 µm). Further experiments on a PC architecture investigate the trade-o� when optimising calibration plans for both time and the uncertainty of measurement. These experiments demonstrated that it is possible to optimise both metrics reaching a compromise that is on average 5% worse that the best-known solution for each individual metric. Additional experiments using a High Performance Computing architecture show that on average optimality of calibration plans can be improved by 4%; a potential saving of 30 minutes for a single machine and 10 hours for a company with 20 machines tools. This could incur a financial saving in excess of $1200 saving.

Published
2014

36. Comfort-constrained distributed heat pump management

Author

Parkinson, Simon, Wang, Dan, Crawford, Curran, and Djilali, Ned

Subjects
Mathematics - Optimization and Control
Abstract

This paper introduces the design of a demand response network control strategy aimed at thermostatically controlled electric heating and cooling systems in buildings. The method relies on the use of programmable communicating thermostats, which are able to provide important component-level state variables to a system-level central controller. This information can be used to build power density distribution functions for the aggregate heat pump load. These functions lay out the fundamental basis for the methodology by allowing for consideration of customer-level constraints within the system-level decision making process. The proposed strategy is then implemented in a computational model to simulate a distribution of buildings, where the aggregate heat pump load is managed to provide the regulation services needed to successfully integrate wind power generators. Increased exploitation of wind resources will place similarly themed ancillary services in high-demand, traditionally provided by dispatchable energy resources that are ill-suited for the frequent power gradients that accompany wind power generation., Comment: 2011 International Conference on Smart Grid and Clean Energy Technologies

Published
2011

40. Edge Influence Computation in Dynamic Graphs

Author

Qin, Yongrui, Sheng, Quan Z., Parkinson, Simon, Falkner, Nickolas J. G., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Candan, Selçuk, editor, Chen, Lei, editor, Pedersen, Torben Bach, editor, Chang, Lijun, editor, and Hua, Wen, editor

Published
2017
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