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Papers by Robert Macredie

ACM Transactions on Interactive Intelligent Systems

Despite the prevalence of mental health conditions, stigma, lack of awareness, and limited resour... more Despite the prevalence of mental health conditions, stigma, lack of awareness, and limited resources impede access to care, creating a need to improve mental health support. The recent surge in scientific and commercial interest in conversational agents and their potential to improve diagnosis and treatment seems a potentially fruitful area in this respect, particularly for young adults who widely use such systems in other contexts. Yet, there is little research that considers the acceptability of conversational agents in mental health. This study, therefore, presents three research activities that explore whether conversational agents and, in particular, chatbots can be an acceptable solution in mental healthcare for young adults. First, a survey of young adults (in a university setting) provides an understanding of the landscape of mental health in this age group and of their views around mental health technology, including chatbots. Second, a literature review synthesises current...

Human Aspects of IT for the Aged Population. Acceptance, Communication and Participation, 2018

One of the critical issues in developing intrusion detection systems (IDS) in cloud-computing env... more One of the critical issues in developing intrusion detection systems (IDS) in cloud-computing environments is the lack of publicly available cloud intrusion detection datasets, which hinders research into IDS in this area. There are, however, many non-cloud intrusion detection datasets. This paper seeks to leverage one of the well-established non-cloud datasets and analyze it in relation to one of the few available cloud datasets to develop a detection model using a machine learning technique. A complication is that these datasets often have different structures, contain different features and contain different, though overlapping, types of attack. The aim of this paper is to explore whether a simple machine learning classifier containing a small common feature set trained using a non-cloud dataset that has a packet-based structure can be usefully applied to detect specific attacks in the cloud dataset, which contains time-based traffic. Through this, the differences and similaritie...

Organisational spending on IT-systems is still on the rise, despite research indicating that majo... more Organisational spending on IT-systems is still on the rise, despite research indicating that majority of these IT-systems are not used optimally by employees. This has been attributed to a wide range of responses from IT users, especially in a mandatory use context. In spite of decades of research, the identification of various user responses to IT and the factors that influence these responses remain very important. This study seeks to investigate how users respond to mandated IT-induced organisational changes and what factors influence these responses over time. An interpretive case study approach was adopted, with semi-structured interviews used as the primary data source at a Radio/Television station. Preliminary findings indicate that users respond differently (i.e., opportunity and threat responses) to the proposed mandated IT implementation, and also reveal 3 factors (i.e., management support, user involvement, and social influence) that influence a user’s primary appraisal a...

British Journal of Educational Technology, 2021

ACM Transactions on Computer-Human Interaction

Business Process Reengineering (BPR) is a managerial approach that questions the way the organiza... more Business Process Reengineering (BPR) is a managerial approach that questions the way the organization's processes operates and intends to re-structure them in order to produce a better organizational performance. However, considering that organizations rely heavily on Information Systems (IS), which in turn, require a reliable Computer Network (CN) infrastructure, most BPR projects imply changes not only to their business processes

... Authors' addresses: S. Chen, School of Informati... more ... Authors' addresses: S. Chen, School of Information Services, Computing and Mathematics, Brunel University, UK; email: sherry.chen@brunell.ac.uk; RD Macredie and X. Liu, School of Information Services, Computing and Mathematics, Brunel University, UK; A. Sutcliffe ...

Proceedings of the 6th Information Design International Conference, 2014

Personal Technologies, 1998

Personal Technologies, 1997

This paper considers the concept of agency and the applications of software agents within the fie... more This paper considers the concept of agency and the applications of software agents within the field of Personal Information Management (PIM). PIM addresses the complex activities undertaken by individuals when organising their personal information. In the context of Personal Information Management, effective software agents may allow users to obtain information relevant to their tasks, and present it in a form

Neural Computing & Applications, 1997

Journal of Intelligent Systems, 1996

Journal of Intelligent Systems, 2000

Desktop virtual environments are computer-generated representations of three-dimensional spaces, ... more Desktop virtual environments are computer-generated representations of three-dimensional spaces, such as buildings, displayed on a normal desktop monitor. They are used to convey physical world representations in an interactive manner, which makes them ideal for modeling and training applications. The accuracy of the representations is very important as they impact on the way in which users interact with the environment. This paper presents a review of the cognitive issues involved with one key area related to representation and subsequent interaction, the visual perception of the desktop virtual environments. The overall aim of the review is to formulate an agenda for research, which would contribute, through basic empirical investigations, to the further understanding of visually perceiving desktop virtual environments. The review concentrates on visual cues because it is essentially these visual cues that integrate to provide the illusion of depth and the third dimension. The review begins by highlighting the importance of the research through assessing the use of the desktop virtual environment tool in various commercial settings. It then progresses to consider the perceptual theories that underpin perceiving visual cues and theories relating to visual cue combination and conflict. The final aspect of the review attempts to emphasize the idea of individual differences of visual cue perception in the desktop virtual environment context. Individual differences consider cognitive and perceptual capabilities, which is a growing concern in the pursuit of conducive desktop virtual environment displays. {Robert.Macredie}, {Sonali.Morar}@brunel.ac.uk

Cognition, Technology & Work, 2000

Interacting with Computers, 2007

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM ha... more Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references. ... Comparing students satisfaction with distance education to traditional classrooms in higher ...

ACM Transactions on Interactive Intelligent Systems

Despite the prevalence of mental health conditions, stigma, lack of awareness, and limited resour... more Despite the prevalence of mental health conditions, stigma, lack of awareness, and limited resources impede access to care, creating a need to improve mental health support. The recent surge in scientific and commercial interest in conversational agents and their potential to improve diagnosis and treatment seems a potentially fruitful area in this respect, particularly for young adults who widely use such systems in other contexts. Yet, there is little research that considers the acceptability of conversational agents in mental health. This study, therefore, presents three research activities that explore whether conversational agents and, in particular, chatbots can be an acceptable solution in mental healthcare for young adults. First, a survey of young adults (in a university setting) provides an understanding of the landscape of mental health in this age group and of their views around mental health technology, including chatbots. Second, a literature review synthesises current...

Human Aspects of IT for the Aged Population. Acceptance, Communication and Participation, 2018

One of the critical issues in developing intrusion detection systems (IDS) in cloud-computing env... more One of the critical issues in developing intrusion detection systems (IDS) in cloud-computing environments is the lack of publicly available cloud intrusion detection datasets, which hinders research into IDS in this area. There are, however, many non-cloud intrusion detection datasets. This paper seeks to leverage one of the well-established non-cloud datasets and analyze it in relation to one of the few available cloud datasets to develop a detection model using a machine learning technique. A complication is that these datasets often have different structures, contain different features and contain different, though overlapping, types of attack. The aim of this paper is to explore whether a simple machine learning classifier containing a small common feature set trained using a non-cloud dataset that has a packet-based structure can be usefully applied to detect specific attacks in the cloud dataset, which contains time-based traffic. Through this, the differences and similaritie...

Organisational spending on IT-systems is still on the rise, despite research indicating that majo... more Organisational spending on IT-systems is still on the rise, despite research indicating that majority of these IT-systems are not used optimally by employees. This has been attributed to a wide range of responses from IT users, especially in a mandatory use context. In spite of decades of research, the identification of various user responses to IT and the factors that influence these responses remain very important. This study seeks to investigate how users respond to mandated IT-induced organisational changes and what factors influence these responses over time. An interpretive case study approach was adopted, with semi-structured interviews used as the primary data source at a Radio/Television station. Preliminary findings indicate that users respond differently (i.e., opportunity and threat responses) to the proposed mandated IT implementation, and also reveal 3 factors (i.e., management support, user involvement, and social influence) that influence a user’s primary appraisal a...

British Journal of Educational Technology, 2021

ACM Transactions on Computer-Human Interaction

Business Process Reengineering (BPR) is a managerial approach that questions the way the organiza... more Business Process Reengineering (BPR) is a managerial approach that questions the way the organization's processes operates and intends to re-structure them in order to produce a better organizational performance. However, considering that organizations rely heavily on Information Systems (IS), which in turn, require a reliable Computer Network (CN) infrastructure, most BPR projects imply changes not only to their business processes

... Authors' addresses: S. Chen, School of Informati... more ... Authors' addresses: S. Chen, School of Information Services, Computing and Mathematics, Brunel University, UK; email: sherry.chen@brunell.ac.uk; RD Macredie and X. Liu, School of Information Services, Computing and Mathematics, Brunel University, UK; A. Sutcliffe ...

Proceedings of the 6th Information Design International Conference, 2014

Personal Technologies, 1998

Personal Technologies, 1997

This paper considers the concept of agency and the applications of software agents within the fie... more This paper considers the concept of agency and the applications of software agents within the field of Personal Information Management (PIM). PIM addresses the complex activities undertaken by individuals when organising their personal information. In the context of Personal Information Management, effective software agents may allow users to obtain information relevant to their tasks, and present it in a form

Neural Computing & Applications, 1997

Journal of Intelligent Systems, 1996

Journal of Intelligent Systems, 2000

Desktop virtual environments are computer-generated representations of three-dimensional spaces, ... more Desktop virtual environments are computer-generated representations of three-dimensional spaces, such as buildings, displayed on a normal desktop monitor. They are used to convey physical world representations in an interactive manner, which makes them ideal for modeling and training applications. The accuracy of the representations is very important as they impact on the way in which users interact with the environment. This paper presents a review of the cognitive issues involved with one key area related to representation and subsequent interaction, the visual perception of the desktop virtual environments. The overall aim of the review is to formulate an agenda for research, which would contribute, through basic empirical investigations, to the further understanding of visually perceiving desktop virtual environments. The review concentrates on visual cues because it is essentially these visual cues that integrate to provide the illusion of depth and the third dimension. The review begins by highlighting the importance of the research through assessing the use of the desktop virtual environment tool in various commercial settings. It then progresses to consider the perceptual theories that underpin perceiving visual cues and theories relating to visual cue combination and conflict. The final aspect of the review attempts to emphasize the idea of individual differences of visual cue perception in the desktop virtual environment context. Individual differences consider cognitive and perceptual capabilities, which is a growing concern in the pursuit of conducive desktop virtual environment displays. {Robert.Macredie}, {Sonali.Morar}@brunel.ac.uk

Cognition, Technology & Work, 2000

Interacting with Computers, 2007

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM ha... more Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references. ... Comparing students satisfaction with distance education to traditional classrooms in higher ...