- Burwood, Melbourne
Peter W Eklund
Deakin University, School of Information Technology, Faculty Member
- IT University of Copenhagen, Business Department, Faculty Memberadd
- Peter works with applications of Intelligent Information Systems and applied Artificial Intelligence. He has expertis... morePeter works with applications of Intelligent Information Systems and applied Artificial Intelligence. He has expertise with the application of Formal Concept Analysis to knowledge and information organisation problems and a recently developed interest in distributed ledger technologies including blockchain. Peter is data science literate and teaches machine learning and applied AI.edit
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AbstractThis article reports details of the implementation and results of an investigation into the use of the World Wide Web as a teaching tool in Computing Studies Methods (educational technology) at the University of Sydney (SU) and in... more
AbstractThis article reports details of the implementation and results of an investigation into the use of the World Wide Web as a teaching tool in Computing Studies Methods (educational technology) at the University of Sydney (SU) and in Computer Literacy at the University of Adelaide (AU). Using the Web to learn about topics in educational technology, courses at both universities undertook a restructuring of content and delivery to examine the viability of the Web as a medium for collaborative learning through browsing, indexing, and publication. A student-centered delivery was negotiated at both SU and AU, with course leaders and laboratory demonstrators acting as facilitators. Students at SU were graduates with computer science training studying teaching methodology in Computing Studies, while those at AU were first-year students without computer science training studying Computer Literacy. At each university, students worked both individually and cooperatively in small groups to produce projects on a...
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ABSTRACT
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Google, Inc. (search). ...
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Crash fault tolerance describes the capability of a distributed system to maintain its proper function despite the occurrence of crashes or failures in one or more of its components. When a distributed system possesses crash fault... more
Crash fault tolerance describes the capability of a distributed system to maintain its proper function despite the occurrence of crashes or failures in one or more of its components. When a distributed system possesses crash fault tolerance, it can be further fortified to achieve Byzantine fault tolerance. Byzantine fault tolerance empowers a distributed system to establish consensus among participants, even when faced with faulty or malicious behavior. Consensus plays a critical role in various tasks, including determining the accurate value of a shared variable, electing a leader, or validating the integrity of a business transaction. Compared to crash fault tolerance, Byzantine fault tolerance instills greater trust because it enables consensus even in the presence of malicious entities. This paper focuses on the performance evaluation of two blockchain solutions that exhibit Byzantine fault tolerance, in contrast to a blockchain solution that demonstrates crash fault tolerance. ...
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This paper examines the feasibility of blockchain solutions for national and transnational business-to-business and business-to-government (B2B/B2G) compliance frameworks, namely a trust-less, de-centralised, self-regulating distributed... more
This paper examines the feasibility of blockchain solutions for national and transnational business-to-business and business-to-government (B2B/B2G) compliance frameworks, namely a trust-less, de-centralised, self-regulating distributed ledger. In particular, the paper examines whether blockchain platforms scale to support national and transnational e-business trading.
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Our trial uses a set of 9,000 patient medical discharge summaries fromthe Thorasic unit at the Royal Adelaide Hospital. The discharge summaries are indexed using SNOMED, Systematized Nomenclature of Medicine. The documents ...
In Formal Concept Analysis, a many-valued context is a collection of objects described by attributes that take on more than binary values, such as age (as integers or ranges of integer values) or color (a list or even a hierarchy of color... more
In Formal Concept Analysis, a many-valued context is a collection of objects described by attributes that take on more than binary values, such as age (as integers or ranges of integer values) or color (a list or even a hierarchy of color combinations). Conceptual scaling is the process by which such a many-valued context is transformed into a formal context, by associating a concept lattice with the many-valued context. A many-valued context can be compared to a single table in a relational database populated with multiple rows and non-binary values. A generalization of conceptual scaling as a relational database as a whole should take into account the relations between objects, as expressed by means of foreign keys. Previous approaches to scaling a relational database (e.g. relational scaling) take such relations into account, but either do not maintain a separation between objects and values, which is characteristic for the unary case, or result in unary contexts only. In the app...
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© 2016 authors. Location-based services feature in many information systems however attitudes to location privacy, and the impact of user attitudes to transport app usage, are less common. This paper builds on a use-case, the... more
© 2016 authors. Location-based services feature in many information systems however attitudes to location privacy, and the impact of user attitudes to transport app usage, are less common. This paper builds on a use-case, the implementation of UNISHUTTLE, a smartphone transport app developed by the authors, that provides users with real-time bus location and arrival information from an Automatic Vehicle Location (AVL) system. In exchange, the AVL system tracks and warehouses user interactions with the transport network. The paper describes a pre- and post-implementation survey of user attitudes toward location privacy, and explores how some app features of the transport app trade-off against privacy concerns.
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}) )$ Figure 25: A language for knowledge indexing or connecting any Webaccessible document element. The above indexation notations allow the statements and the indexed DEs to be in different documents. Thus, any user may index any... more
}) )$ Figure 25: A language for knowledge indexing or connecting any Webaccessible document element. The above indexation notations allow the statements and the indexed DEs to be in different documents. Thus, any user may index any element of a document on the Web. Figure 22 presents a general interface for knowledge-based queries and shows how a document containing knowledge is loaded in the WebKB processor before being queried. 24 KNOWLEDGE PROCESSING THE HARD WAY Peter Eklund WebKB also allows the document owner to index an image by a knowledge statement directly stored in the "alt" field of the HTML "img" tag. We use this special case of indexation to present a simple illustration of WebKB's features. This example, shown in Figure 26, is a good synthesis but is in no way representative of the general use of WebKB --- it is not representative because it mixes the indexed source data (in this case, a collection of images), their indexation, and a customized interface to query th...
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A new genetic algorithm to solve the scheduling and allocation problems simultaneously for high-level synthesis is proposed in this paper. A straightfor- ward method to obtain ospring eciently by cros- sover and ...
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The Concept lattice and their Applications conference series began as a response to the increasing use of concept lattices in practical applications. These proceedings reflect the diversity of interest in concept lattices by the... more
The Concept lattice and their Applications conference series began as a response to the increasing use of concept lattices in practical applications. These proceedings reflect the diversity of interest in concept lattices by the scientific community with papers ranging from the analysis of algorithms in data mining to teaching mathematics. CLA is structured as a triple peer-review process: conference paper, presentation and extended journal paper. 48 papers were submitted to CLA2007 and 24 papers were selected for presentation. All papers were peer reviewed by at least 3 members of the program committee with the final decision on acceptance determined from the reviews by the program chairs. Based on the presentation of the final papers, outstanding contributions from this volume will be invited to submit an extended version of their conference paper for a special volume on concept lattice applications for the International Journal of General Systems. These papers will again be peer-...
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This paper is a description of a technique to allow the manipulation of conceptualscales by domain experts through interaction and manipulation of a folding Hassediagram. By providing a set of manipulations, the domain expert, with only... more
This paper is a description of a technique to allow the manipulation of conceptualscales by domain experts through interaction and manipulation of a folding Hassediagram. By providing a set of manipulations, the domain expert, with only anintuitive understanding of the underlying representational theory -- formal conceptanalysis -- is able to construct scales to investigate the text data. The method showshow a knowledge representation language, and its diagrammatic rendering, can be...
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The UOW Global Challenges Visualisation will provide an interactive and immersive experience for the UOW Global Challenges program, an initiative that’s intended to reinvigorate, focus and grow research at the University of Wollongong. As... more
The UOW Global Challenges Visualisation will provide an interactive and immersive experience for the UOW Global Challenges program, an initiative that’s intended to reinvigorate, focus and grow research at the University of Wollongong. As part of the new website being developed for the program, we are building an interactive product that will encourage discovery across its projects, people, disciplines and themes.
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To give students as authentic learning experience as possible, many software-focused degrees incorporate team-based capstone projects in the final year of study. Designing capstone projects, however, is not a trivial undertaking, and a... more
To give students as authentic learning experience as possible, many software-focused degrees incorporate team-based capstone projects in the final year of study. Designing capstone projects, however, is not a trivial undertaking, and a number of constraints need to be considered, especially when it comes to defining learning outcomes, choosing clients and projects, providing guidance to students, creating an effective project "support infrastructure", and measuring student outcomes. To address these challenges, we propose a novel, scalable model for managing capstone projects, called ACE, that adapts Spotify’s Squads and Tribes organization to an educational setting. We present our motivation, the key components of the model, its adoption, and refer to preliminary observations.
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To give students as authentic learning experience as possible, many software-focused degrees incorporate team-based capstone projects in the final year of study. Designing capstone projects, however, is not a trivial undertaking, and a... more
To give students as authentic learning experience as possible, many software-focused degrees incorporate team-based capstone projects in the final year of study. Designing capstone projects, however, is not a trivial undertaking, and a number of constraints need to be considered, especially when it comes to defining learning outcomes, choosing clients and projects, providing guidance to students, creating an effective project "support infrastructure", and measuring student outcomes. To address these challenges, we propose a novel, scalable model for managing capstone projects, called ACE, that adapts Spotify’s Squads and Tribes organization to an educational setting. We present our motivation, the key components of the model, its adoption, and refer to preliminary observations.
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The Virtual Museum of the Pacific (VMP) is designed around the use of Formal Concept Analysis [4] to organize digital library content. It creates an associative network based on semantic themes according to a museological view of content.... more
The Virtual Museum of the Pacific (VMP) is designed around the use of Formal Concept Analysis [4] to organize digital library content. It creates an associative network based on semantic themes according to a museological view of content. The system allows the extensible creation of new views, the addition of new attributes and contains a social tagging interface that encourages the Museum's stakeholders to annotate content and build custom views of the collection according to their communities of interest.
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The digital medium allows visitors, curators and art historians to gain new insights into their collections through data analysis and rich, interactive visualizations. Motivated by the rise of large-scale cultural heritage collections... more
The digital medium allows visitors, curators and art historians to gain new insights into their collections through data analysis and rich, interactive visualizations. Motivated by the rise of large-scale cultural heritage collections that have emerged on the Web, we argue that Formal Concept Analysis can be used to highlight the relationships between objects and their features within digital art collections and provide a means for visitors to explore these collections via interactive, narrated pathways. Our work presents four research projects that span 10 years from 2005 - 2015 – ImageSleuth, The Virtual Museum of the Pacific, A Place for Art and a scalability study of Formal Concept Analysis as applied to a data-set from the Brooklyn Museum. Our approach is based on the idea that much of the meaning that can be interpreted from museum collections lies – at least in part – in the way that objects are related to one another. Our work examines how Formal Concept Analysis can drive e...
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CollectionWeb is a framework that uses Formal Concept Analysis (FCA) to link contextually related objects within museum collections. These connections are used to drive a number of user interactions that are intended to promote... more
CollectionWeb is a framework that uses Formal Concept Analysis (FCA) to link contextually related objects within museum collections. These connections are used to drive a number of user interactions that are intended to promote exploration and discovery. The idea is based on museological perspectives that emphasise the importance of the human, social and cultural contexts that are associated with objects. This paper presents an application of these museological concepts as related to the principles of Formal Concept Analysis along with a description of how the CollectionWeb framework generates narratives based on conceptual pathways. The framework has been applied to a number of user facing applications and provides insights on how FCA and natural language pipelines can be used to provide contextual, linked navigation within museum collections.
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Standardized approaches to relevance classification in information retrieval use generative statistical models to identify the presence or absence of certain topics that might make a document relevant to the searcher. These approaches... more
Standardized approaches to relevance classification in information retrieval use generative statistical models to identify the presence or absence of certain topics that might make a document relevant to the searcher. These approaches have been used to better predict relevance on the basis of what the document is “about”, rather than a simple-minded analysis of the bag of words contained within the document. In more recent times, this idea has been extended by using pre-trained deep learning models and text representations, such as GloVe or BERT. These use an external corpus as a knowledge-base that conditions the model to help predict what a document is about. This paper adopts a hybrid approach that leverages the structure of knowledge embedded in a corpus. In particular, the paper reports on experiments where linked data triples (subject-predicate-object), constructed from natural language elements are derived from deep learning. These are evaluated as additional latent semantic ...
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Formal Concept Analysis – known as a technique for data analysis and visualisation – can also be applied as a means of creating interaction approaches that allow for knowledge discovery within collections of content. These interaction... more
Formal Concept Analysis – known as a technique for data analysis and visualisation – can also be applied as a means of creating interaction approaches that allow for knowledge discovery within collections of content. These interaction approaches rely on performant algorithms that can generate conceptual neighbourhoods based on a single formal concept, or incrementally compute and update a set of formal concepts given changes to a formal context. Using case studies based on content from museum collections, this paper describes the scalability limitations of existing interaction approaches and presents an implementation and evaluation of the FCbO update algorithm as a means of updating formal concepts from large and dynamically changing museum datasets.
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Abstract. Within the cultural informatics community, there is a strong desire to mine and understand relationships within and among collec-tions of objects. In this paper we describe a case study of applied Formal Concept Analysis to... more
Abstract. Within the cultural informatics community, there is a strong desire to mine and understand relationships within and among collec-tions of objects. In this paper we describe a case study of applied Formal Concept Analysis to cultural heritage and art collections. We base our ...
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ABSTRACT This paper describes a Web Services (WS) and distributed systems architecture for Formal Concept Analysis that sup-ports information and content management in a social media system. As well as social tagging, the system includes... more
ABSTRACT This paper describes a Web Services (WS) and distributed systems architecture for Formal Concept Analysis that sup-ports information and content management in a social media system. As well as social tagging, the system includes novel approaches to ...
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Location-based services feature prominently in many digital ecosystem designs. In this paper we present the design of a mobility digital ecosystem for public transportation services in a campus area network. We describe four context-aware... more
Location-based services feature prominently in many digital ecosystem designs. In this paper we present the design of a mobility digital ecosystem for public transportation services in a campus area network. We describe four context-aware applications that encourage users to disclose their location: a public transport passenger tracking application; a route-based car-pooling application; an on-campus location-based social networking “assistant” and a virtual art-gallery guided tour. The location-based service applications offered are intended to encourage users to participate in a digital ecosystem and in so doing share data about their location. This location data can be used to provide value-added services to the users and optimize overall system behavior. In this talk, I present the architectures of these four applications and address issues concerning privacy, location-identity and uniform standards developed by the Internet Engineering Task Force (IETF). Our applications provide environments that encourage individual interaction and engagement that are self-regulating and self-evolving: key characteristics of a digital ecosystem.
The Virtual Museum of the Pacific is a social media platform enabling on-line user community engagement with the Pacific Collection of the Australian Museum. The success of the system depends on facilitating the development of culturally... more
The Virtual Museum of the Pacific is a social media platform enabling on-line user community engagement with the Pacific Collection of the Australian Museum. The success of the system depends on facilitating the development of culturally relevant folksonomies and encouraging a conversation between online communities. In this presentation we explore the relationships between stakeholders, folksonomy and taxonomy, to reveal the design strategies that inform this digital ecosystem. Given its capacity to span both collection management and community access issues, we maintain that the Virtual Museum of the Pacific is a significant model for online community interaction in the contemporary museum environment. The Virtual Museum of the Pacific is accessible at http://epoc.cs.uow.edu.au/vmp and you can watch a youtube presentation of it athttp://www.youtube.com/watch?v=YbSgKvWauP8
In this talk we present the idea of Web-based Digital Ecosystems as a metaphor for contemporary information systems development. We motivate and explain the Digital Ecosystem metaphor. To this end, we demonstrate a combined Semantic Web... more
In this talk we present the idea of Web-based Digital Ecosystems as a metaphor for contemporary information systems development. We motivate and explain the Digital Ecosystem metaphor. To this end, we demonstrate a combined Semantic Web and Web 2.0 approach to semi-automate the development of social media Web sites, in particular for Museum collections. The CollectionWeb framework has been applied in two Web-information systems, the Virtual Museum of the Pacific, developed for the Australian Museum and the Art Collection Ecosystem. Several other Web-based Digital Ecosystems are under development using the framework.
In CollectionWeb, digital artefacts of artistic or cultural significance are assembled in a Web-based content management system. A concept clustering technique called Formal Concept Analysis induces page impressions and drives semantic navigation. The object descriptions determine the navigation that can change with the user’s chosen perspective. All that need be done is for the Museum to describe an object to an adequate digital standard. In this way, leveraging existing metadata from a collection management system becomes a possibility for automatically generating Museum sites. Similarly, because association rules can be derived from Formal Concept Analysis, the sites provide a lightweight inference engine without semantic mark-up other than object metadata. The systems allow users to add their own tags to the objects, which in turn can influence the structure and the presentation of the collection. This self-organising capability is a key feature of CollectionWeb and is a key characteristic of the Digital Ecosystem metaphor in general. In doing so we present a compelling way for art institutions, museums and enthusiasts to present, organise and tag their collections.
In CollectionWeb, digital artefacts of artistic or cultural significance are assembled in a Web-based content management system. A concept clustering technique called Formal Concept Analysis induces page impressions and drives semantic navigation. The object descriptions determine the navigation that can change with the user’s chosen perspective. All that need be done is for the Museum to describe an object to an adequate digital standard. In this way, leveraging existing metadata from a collection management system becomes a possibility for automatically generating Museum sites. Similarly, because association rules can be derived from Formal Concept Analysis, the sites provide a lightweight inference engine without semantic mark-up other than object metadata. The systems allow users to add their own tags to the objects, which in turn can influence the structure and the presentation of the collection. This self-organising capability is a key feature of CollectionWeb and is a key characteristic of the Digital Ecosystem metaphor in general. In doing so we present a compelling way for art institutions, museums and enthusiasts to present, organise and tag their collections.
The Virtual Museum of the Pacific was developed by University of Wollongong Researchers in the Centre of Digital Ecosystems in collaboration with the Australian Museum. It uses rich media and metadata content from the Australian Museum's... more
The Virtual Museum of the Pacific was developed by University of Wollongong Researchers in the Centre of Digital Ecosystems in collaboration with the Australian Museum. It uses rich media and metadata content from the Australian Museum's Pacific Collection. The result is a innovative collection content navigation and social media web site. Anyone is free to register and use the Virtual Museum of the Pacific at http://epoc.cs.uow.edu.au/vmp
Passenger information systems can be achieved when there is a single integrated transport authority. Such systems are more difficult to implement when combined across multiple companies, transport types and providers. Even more... more
Passenger information systems can be achieved when there is a single integrated transport authority. Such systems are more difficult to implement when combined across multiple companies, transport types and providers. Even more challenging is the provision of services in a ticketless transport network. In the Digital Bus, connecting services, details of the next bus or train, local shops, businesses, hotels and other traveller-related information, are made available via GPS, wireless networks and personal mobile devices as well as in traditional forms such as signs and audible signals. In this seminar, I explain the challenge of planning services in a ticketless transport network using the Gong Shuttle and free University shuttle services as a case study for research on location-based transport services.
This tutorial will present the fundamental metaphors of the Digital Ecosystems for managing Digital Libraries on the Web and introduce domain suitable case studies illustrating the application of the opensource CollectionWeb framework... more
This tutorial will present the fundamental metaphors of the Digital Ecosystems for managing Digital Libraries on the Web and introduce domain suitable case studies illustrating the application of the opensource CollectionWeb framework for managing Digital Libraries on the Web. In addition it will:
* Examine the business and organisation context for a social media styles of digital library management
* Introduce the sources of data, structured and unstructured, formal and informal
* Examine the data requirements and issues in digital ecosystems used for digital library management, data capture and extensibility
* Present the techniques that deliver a solution to data integration issues for Web-based digital libraries
* Discuss a Service Oriented Architecture as Digital Ecosystem backbone for digital library management
* Introduce the issue of social media tagging as folksonomy maintenance for digital libraries
* Present an access control model that supports the solution to multiple folksonomies in digital libraries
* Examine user interface design and technical requirements issues
* Present evaluation methods for Web-based Digital Ecosystem performance measurement
* Discuss future trends in Digital Ecosystem for the digital library management on the Web
It will be presented by Peter Eklund, Professor of Information Systems and Technology and Director of the Centre for Digital Ecosystems at the University of Wollongong.
* Examine the business and organisation context for a social media styles of digital library management
* Introduce the sources of data, structured and unstructured, formal and informal
* Examine the data requirements and issues in digital ecosystems used for digital library management, data capture and extensibility
* Present the techniques that deliver a solution to data integration issues for Web-based digital libraries
* Discuss a Service Oriented Architecture as Digital Ecosystem backbone for digital library management
* Introduce the issue of social media tagging as folksonomy maintenance for digital libraries
* Present an access control model that supports the solution to multiple folksonomies in digital libraries
* Examine user interface design and technical requirements issues
* Present evaluation methods for Web-based Digital Ecosystem performance measurement
* Discuss future trends in Digital Ecosystem for the digital library management on the Web
It will be presented by Peter Eklund, Professor of Information Systems and Technology and Director of the Centre for Digital Ecosystems at the University of Wollongong.
What do Facebook, Twitter, Amazon, Youtube, Flickr all have in common? They are all examples of Web-based Digital ecosystems. Whether you are writing a book review on Amazon or tagging photos in Flickr, Digital Ecosystems foster... more
What do Facebook, Twitter, Amazon, Youtube, Flickr all have in common? They are all examples of Web-based Digital ecosystems. Whether you are writing a book review on Amazon or tagging photos in Flickr, Digital Ecosystems foster interaction, engagement and collaboration within a naturally sustainable environment. Understanding their power is going to be one of the major differential factors for any successful organisation in the future, so come along to our next session where Peter Eklund and Tim Wray from the University of Wollongong, will share their expertise and experiences including:
Digital Ecosystems, Social Media and Social Tagging
How have Digital Ecosystems evolved
Case Study: The Virtual Museum of the Pacific & The Art Collection Ecosystem
What’s in store for the future
Digital Ecosystems, Social Media and Social Tagging
How have Digital Ecosystems evolved
Case Study: The Virtual Museum of the Pacific & The Art Collection Ecosystem
What’s in store for the future
Book chapter