Danius T. Michaelides's research while affiliated with University of Southampton and other places

Publications (123)

Article
Full-text available
Choices in the design and delivery of digital health behaviour interventions may have a direct influence on subsequent usage and engagement. Few studies have been able to make direct, detailed comparisons of differences in usage between interventions that are delivered via web or app. This study compared the usage of two versions of a digital stres...
Article
PROV-Template is a declarative approach that enables designers and programmers to design and generate provenance compatible with the PROV standard of the World Wide Web Consortium. Designers specify the topology of the provenance to be generated by composing templates, which are provenance graphs containing variables, acting as placeholders for val...
Article
Full-text available
Push notifications offer a promising strategy for enhancing engagement with smartphone-based health interventions. Intelligent sensor-driven machine learning models may improve the timeliness of notifications by adapting delivery to a user's current context (e.g. location). This exploratory mixed-methods study examined the potential impact of timin...
Conference Paper
In this paper, we propose a representation for PROV in JSON-LD, the JSON format for Linked Data, called PROV-JSONLD. As a JSON-based format, this provenance representation can be readily consumed by Web applications currently supporting JSON. As a Linked Data format, at the same time, it also represents provenance data in RDF using the PROV ontolog...
Book
Full-text available
The use of statistical modelling by researchers in all disciplines is growing in prominence. There is an increase in the availability and complexity of data sources, and an increase in the sophistication of statistical methods that can be used. For the novice practitioner of statistical modelling it can seem like you are stuck at the bottom of a mo...
Conference Paper
We present a technique to capture retrospective provenance across a number of tools in a statistical software suite. Our goal is to facilitate portability of processes between the tools to enhance usability and to support reproducibility. We describe an intermediate notation to aid runtime capture of provenance and demonstrate conversion to an exec...
Conference Paper
Whilst a large range of valuable training resources are available to those interested in learning quantitative techniques, few discuss how statistics are conducted in practice by working analysts. Advances in technology, however, have opened up the possibility of using more interactive tools to develop such resources. We have conducted interviews w...
Article
Full-text available
Attrition is a significant problem in web-based interventions. Consequently, research aims to identify the relation between web usage and benefit from such interventions. We have developed a visualisation tool that enables researchers to more easily examine large data sets on intervention usage that can be difficult to make sense of using tradition...
Article
Full-text available
Push notifications offer a promising strategy for enhancing engagement with smartphone-based health interventions. Intelligent sensor-driven machine learning models may improve the timeliness of notifications by adapting delivery to a user’s current context (e.g. location). This exploratory mixed-methods study examined the potential impact of timin...
Article
Advancements in mobile phone technology offer huge potential for enhancing the timely delivery of health behavior change interventions. The development of smartphone-based health interventions (apps) is a rapidly growing field of research, yet there have been few longitudinal examinations of how people experience and use these apps within their day...
Technical Report
Full-text available
An 'Intellectual Ramp' enables researchers to move incrementally from their current practice into the adoption of new methods. An investigation of Ramps is an important step towards "crossing the chasm" so that researchers can benefit from new tools, technologies and approaches. This paper will define and explain the concept of Ramps, discuss requi...
Conference Paper
Provenance is a record that describes the people, institutions, entities, and activities involved in producing, influencing, or delivering a piece of data or a thing. The W3C Provenance Working group has just published the PROV family of specifications, which include a data model for provenance on the Web. The working group introduces a notion of v...
Conference Paper
This paper describes the mechanisms involved in accessing provenance on the Web, according to the new W3C PROV specifications, and how end-users can process this information to make basic trust assessments. Additionally, we illustrate this principle by implementing a practical use case, namely Tim Berners-Lee’s vision of the "Oh, yeah?" button, ena...
Article
This document specifies a JSON representation for the PROV Data Model, called PROV-JSON. It provides a compact and faithful representation of PROV that supports fast data look-up and is particularly suitable for interchanging PROV documents between web services and clients.
Article
Abstract—Scientific data stands to represent a significant portion of the linked open data cloud and science itself stands to benefit from the data fusion capability that this will afford. However, simply publishing linked data into the cloud does not necessarily meet the requirements of reuse. Publishing has requirements of provenance, quality, cr...
Article
Science, especially experimental science, has always depended on the careful capture of plans, actions, raw and processed data and conclusions. With scientific research now so inextricably dependent on computers, the use of an electronic laboratory notebook (ELN) is almost essential. The meticulous notebooks of Michael Faraday and other scientists...
Book
Full-text available
Stat-JR is a software environment for promoting interactive complex statistical modelling.This is an introduction to Stat-JR's menu-driven TREE (Template Reading and Execution Environment) interface, and includes a quick-start guide. The software can be dowloaded from http://www.bristol.ac.uk/cmm/software/statjr/
Book
Full-text available
Stat-JR is a software environment for promoting interactive complex statistical modelling. This manual looks 'under the bonnet' of the Stat-JR system, and provides guidance for those wishing to write their own templates.Software can be dowloaded from here: http://www.bristol.ac.uk/cmm/software/statjr/
Article
Demonstrating the impact and effectiveness of educational interventions, including medium and high-fidelity simulation, has long been fraught with methodological challenges and ambiguities. This is particularly the case when there are several confounding factors and variables operating in situations where control trials are inappropriate, and inves...
Conference Paper
The concept of executable documents is attracting growing interest from both academics and publishers since it is a promising technology for the the dissemination of scientific results. Provenance is a kind of metadata that provides a rich description of the derivation history of data products starting from their original sources. It has been used...
Article
Full-text available
Skills-based learning environments are used to promote the acquisition of practical skills as well as decision making, communication, and problem solving. It is important to provide feedback to the students from these sessions and observations of their actions may inform the assessment process and help researchers to better understand the learning...
Conference Paper
Full-text available
The myExperiment social website for sharing scientific workflows, designed according to Web 2.0 principles, has grown to be the largest public repository of its kind. It is distinctive for its focus on sharing methods, its researcher-centric design and its facility to aggregate content into sharable `research objects'. This evolution of myExperimen...
Article
Full-text available
By making research content more reusable, and providing a social infrastructure which facilitates sharing, the human aspects of the scholarly knowledge cycle may be accelerated and ‘time-to-discovery’ reduced. We propose that the key to this is the sharing of methods and processes. We present myExperiment, a social web site for discovering, sharing...
Article
Full-text available
The myExperiment social website for sharing scientific workflows, designed according to Web 2.0 principles, has grown to be the largest public repository of its kind. It is distinctive for its focus on sharing methods, its researcher-centric design and its facility to aggregate content into sharable 'research objects'. This evolution of myExperimen...
Conference Paper
Full-text available
Scientific data stands to represent a significant portion of the linked open data cloud and science itself stands to benefit from the data fusion capability that this will afford. However, simply publishing linked data into the cloud does not necessarily meet the requirements of reuse. Publishing has requirements of provenance, quality, credit, att...
Article
Full-text available
myExperiment (http://www.myexperiment.org) is an online research environment that supports the social sharing of bioinformatics workflows. These workflows are procedures consisting of a series of computational tasks using web services, which may be performed on data from its retrieval, integration and analysis, to the visualization of the results....
Conference Paper
Full-text available
Semantic annotation has been used to combine varied information sources - gathered as unobtrusively as possible - and produce enhanced tools for working with digital resources. In this paper we describe trials carried out using a location tracking system and Semantic Web annotation technologies to analyse activities in a simulated ward environment....
Conference Paper
Full-text available
This paper outlines a series of experiments looking at the annotation and subsequent analysis of skills-based learning and teaching in the domain of nursing. The experiments used semantic Web technologies to create and store annotations of the student's activities. A number of techniques were used to create these annotations ranging from manual tex...
Article
Full-text available
Information Technology (IT) has become an ubiquitous part of education, with a wide range of software being developed and used nowadays to support children in their learning. A dominant model has been to provide information and learning material, that is accessed via the web through the use of desktop computers, in the classroom, the library or hom...
Conference Paper
Semantic annotation has been used to combine varied information sources – gathered as unobtrusively as possible – and produce enhanced tools for working with digital resources. In this paper we describe trials carried out using a location tracking system and Semantic Web annotation technologies to analyse activities in a simulated ward environment....
Article
4th International Conference on Open Repositories This presentation was part of the session : Conference Presentations Date: 2009-05-19 10:00 AM – 11:30 AM myExperiment is an open repository solution for the born-digital items arising in contemporary research practice, in particular scientific workflows and experiment plans. Launched in November 20...
Conference Paper
The myExperiment Virtual Research Environment supports the sharing of research objects used by scientists, such as scientific workflows. For researchers it is both a social infrastructure that encourages sharing and a platform for conducting research, through familiar user interfaces. For developers it provides an open, extensible and participative...
Article
The myExperiment Virtual Research Environment supports the sharing of research objects used by scientists, such as scientific workflows. For researchers it is both a social infrastructure that encourages sharing and a platform for conducting research, through familiar user interfaces. For developers it provides an open, extensible and participative...
Conference Paper
Within the field of health care education, simulation is used increasingly to provide students with opportunities to develop their clinical skills (Alnier, 2006), often occurring in specially designed facilities with audio-video capture of student performance. The video capture enables analysis and assessment of student performance and or competenc...
Article
Full-text available
This paper describes how Semantic Grid technologies can be used to generate enhanced tools for data collection that provide enabling technologies for interdisciplinary work, thereby enhancing the capacity to address substantive social science research. A feasibility study is presented in which semantic annotation (i.e. machine-processable annotatio...
Conference Paper
This paper describes how Semantic Grid technologies can be used to generate enhanced tools for data collection that provide enabling technologies for interdisciplinary work, thereby enhancing the capacity to address substantive social science research. A feasibility study is presented in which semantic annotation (i.e. machine-processable annotatio...
Article
Full-text available
Automation in science is increasingly marked by the use of workflow technology. The sharing of workflows through publication mechanisms or repositories supports the verifiability, reproducibility and extensibility of computational experiments. However, the subsequent discovery of workflows remains a challenge, both from a technological and sociolog...
Article
In this paper we use visualisation techniques to study the human-computer interaction (HCI) of nursing students using an interactive web-based environment for learning clinical skills.
Article
Within the field of health care education, simulation is used increasingly to provide students with opportunities to develop their clinical skills (Alnier, 2006), often occurring in specially designed facilities with audio-video capture of student performance. The video capture enables analysis and assessment of student performance and or competenc...
Conference Paper
This paper describes initial work on developing a semantic annotation system for the augmentation of skills-based learning for Healthcare. Scenario driven skills-based learning takes place in an augmented hospital ward simulation involving a patient simulator known as SimMan. The semantic annotation software enables real-time annotations of these s...
Conference Paper
This paper looks at the card metaphor used successfully in the Equator Ambient Wood and Chawton House projects to structure and author content as part of innovative school field trips using wireless and ubiquitous technologies. The framework provided by the metaphor is laid out and observations made as to how it has been used by domain experts in c...
Article
Located pervasive experiences are often constructed as one off deployments with domain experts acting in a consultancy role to technical specialists who construct the experience. In this paper we will look at how pervasive infrastructures might be constructed that can support domain experts as direct experience authors. We present a case study base...
Article
This paper describes initial work on developing a semantic annotation system for the augmentation of skills-based learning for Healthcare. Scenario driven skills-based learning takes place in an augmented hospital ward simulation involving a patient simulator known as SimMan. The semantic annotation software enables real-time annotations of these s...
Conference Paper
Located pervasive experiences are often constructed as one off deployments with domain experts acting in a consultancy role to technical specialists who construct the experience. In this paper we will look at how pervasive infrastructures might be constructed that can support domain experts as direct experience authors. We present a case study base...
Conference Paper
This paper seeks to lay out a number of observations on Pervasive information systems design that have been made during the Chawton House project, an augmented field trip for school children. After laying out the Chawton House case study, the information infrastructure is described and arising issues are examined concerning design for persistence,...
Article
This chapter deals with three key issues related to designing and building intelligent agents. Firstly, determination of aims and objectives at any given time of an intelligent agent, followed by planning a series of actions to achieve these aims and objectives. And finally agent's interaction with humans and other software agents to complete the o...
Conference Paper
Full-text available
This paper introduces the memetic toolkit for recording meetings held over Internet-based video conferencing technologies, and making these navigable in linear and nonlinear ways. We introduce the tools and technologies that form the toolkit and discuss the semantics of the information they capture
Conference Paper
Full-text available
Grid and Semantic Web technologies both enable heterogeneous resources to be joined up to achieve new functionality and capability, and their combined effectiveness has been demonstrated through a number of ‘Semantic Grid’ projects. These typically apply Semantic Web technologies in Grid applications, in a datagrid or within the Grid middleware. In...
Conference Paper
Full-text available
The 1st International Workshop on Semantic Technologies in Collaborative Applications STICA 06 brought together researchers in the field of semantics-enabled collaboration. The presentations covered various aspects of the field and showed clear indications for future collaborations.
Article
Full-text available
Grid and Semantic Web technologies both enable heterogeneous resources to be joined up to achieve new functionality and capability, and their combined effectiveness has been demonstrated through a number of ‘Semantic Grid’ projects. These typically apply Semantic Web technologies in Grid applications, in a datagrid or within the Grid middleware. In...
Conference Paper
This paper describes a reusable pervasive information infrastructure developed as part of the Equator IRC, designed to allow the construction of literacy based eLearning activities on top of material created as part of a more traditional visitors system. The architecture of the system is described along with details of the creation of the curated m...
Conference Paper
Grid and Semantic Web technologies both enable heterogeneous resources to be joined up to achieve new functionality and capability, and their combined effectiveness has been demonstrated through a number of ‘Semantic Grid’ projects. These typically apply Semantic Web technologies in Grid applications, in a datagrid or within the Grid middleware. In...
Article
Full-text available
Fieldtrips, traditionally associated with science, history and geography teaching, have long been used to support children’s learning by allowing them to engage with environments first-hand. Recently, ubiquitous computing (UbiComp) has been used to enhance fieldtrips in these educational areas by augmenting environments with a range of instruments,...
Article
Full-text available
In this paper we describe an investigation into the requirements for and the use of in-situ authoring in the creation of location based pervasive and UbiComp experiences. We will focus on the co-design process with users that resulted in a novel visitor experience to a historic country estate. This has informed the design of new, in-situ, authoring...
Conference Paper
A key challenge in co-designing UbiComp is that users may have limited understanding or experience of these technologies. While the value of situated co-design activities for promoting understanding is known, the role of time is less well researched. Here we describe and reflect on a range of co-design activities carried out with the curators of an...
Article
Full-text available
The rise of ubiquitous computing (UbiComp), where pervasive, wireless and disappearing technologies offer hitherto unavailable means of supporting activity, increasingly opens up ‘opportunity spaces’. These are spaces where there is no urgent problem to be solved, but much potential to augment and enhance practice in new ways. Based on our experien...
Conference Paper
Fieldtrips, traditionally associated with science, history and geography teaching, have long been used to support children’s learning by allowing them to engage with environments first-hand. Recently, ubiquitous computing (UbiComp) has been used to enhance fieldtrips in these educational areas by augmenting environments with a range of instruments,...
Conference Paper
The rise of ubiquitous computing (UbiComp), where pervasive, wireless and disappearing technologies offer hitherto unavailable means of supporting activity, increasingly opens up ‘opportunity spaces’. These are spaces where there is no urgent problem to be solved, but much potential to augment and enhance practice in new ways. Based on our experien...
Conference Paper
This paper describes an approach to the provision of pervasive field trips where a persistent infrastructure is provided, upon which teachers can easily create novel pervasive experiences for children. The physical infrastructure is briefly described along with the underlying information infrastructure, which enables the tools for authoring the con...
Article
Full-text available
A key challenge in co-designing UbiComp is that users may have limited understanding or experience of these technologies. While the value of situated co-design activities for promoting understanding is known, the role of time is less well researched. Here we describe and reflect on a range of co-design activities carried out with the curators of an...
Conference Paper
In this paper we describe an investigation into the requirements for and the use of in-situ authoring in the creation of location based pervasive and UbiComp experiences. We will focus on the co-design process with users that resulted in a novel visitor experience to a historic country estate. This has informed the design of new, in-situ, authoring...
Article
Full-text available
The CoAKTinG project aims to advance the state of the art in collaborative mediated spaces for the Semantic Grid. This paper presents an overview of the hypertext and knowledge based tools which have been deployed to augment existing collaborative environments, and the ontology which is used to exchange structure, promote enhanced process tracking,...
Article
The CoAKTinG project aims to advance the state of the art in collaborative mediated spaces for the Semantic Grid. This paper presents an overview of the hypertext and knowledge based tools which have been deployed to augment existing collaborative environments, and the ontology which is used to exchange structure, promote enhanced process tracking,...