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Supporting loose forms of collaboration: Using Linked Data to realize an architecture for collective knowledge construction
KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID. KTH, School of Computer Science and Communication (CSC), Centres, School of Architecture and the Built Environment (ABE), Centres, Centre for Sustainable Communications, CESC.ORCID iD: 0000-0002-3869-5413
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis is driven by the motivation to explore a way of working collaboratively that closely reflects the World Wide Web (WWW), more specifically the potential of the Web architecture built on Semantic Web technologies and Linked Data. The goal is to describe a generic approach and architecture that satisfies the needs for loose collaboration and collective knowledge construction as exemplified by the applications described in this thesis. This thesis focuses on a contribution-centric architecture which allows for flexible applications that support loose forms of collaboration.

The first research question deals with how Web-based collective knowledge construction can be supported. The second research question explores the characteristics of collective knowledge construction with respect to the Open World Assumption (OWA). The OWA implies that complete knowledge about a subject cannot be assumed at any time, which is one of the most fundamental properties of the WWW. The third research question investigates how Semantic Web technologies be used in order to support such a contribution-centric architecture.

The thesis and its underlying publications are of a technical character and are always grounded in theoretical models and considerations that have led to functional implementations. The research has evolved in iterative development processes and was explicitly directed at building applications that can be used in collaborative settings and that are based on standardized Web technologies. One of the main outcomes, an information model, was developed together with such an application and provides a number of novel approaches in the context in which it was designed.

The validity of the presented research is supported by evaluations from different perspectives: a list of implemented applications and showcases, results from structured interviews that have investigated the suitability for various resource annotation processes, as well as scalability aspects.

The thesis concludes that it is ultimately up to the application how "loose" the collaboration should be and to which extent the OWA is incorporated. The presented architecture provides a toolkit to support the development of loosely collaborative applications. The showcased applications allow the construction of collaborative conceptual models and to collaboratively annotate educational resources. They show the potential of the used technology stack and the introduced contribution-centric architecture that sits on top if it.

Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2014. , x, 67 p.
Series
TRITA-CSC-A, ISSN 1653-5723 ; 2014:05
Keyword [en]
linked data, collaboration, information model, contribution, application architecture, web application, web standards, www, open world assumption
National Category
Information Systems
Research subject
Information and Communication Technology; Media Technology; Computer Science
Identifiers
URN: urn:nbn:se:kth:diva-144311ISBN: 978-91-7595-087-7 (print)OAI: oai:DiVA.org:kth-144311DiVA: diva2:712903
Public defence
2014-05-22, F3, Lindstedtsvägen 26, KTH, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20140417

Available from: 2014-04-17 Created: 2014-04-16 Last updated: 2014-05-13Bibliographically approved
List of papers
1. Collaborative Construction of Artifacts
Open this publication in new window or tab >>Collaborative Construction of Artifacts
2007 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper describes an approach for collaborative construction of artifacts, such as e.g. graphical maps and annotatable text documents, without requiring write-access to a common single file. Our approach is applicable to any kind of artifacts that can be divided into separate contributions, where each one is authored and stored independently, and, on request, merged into the artifact. The goal is to move collaboration issues from the files where artifacts are expressed, to an information directory. This information directory manages information around artifacts and keeps track of existing contributions to artifacts. Our prototype of such an information directory, named Collaborilla, is designed to be a flexible service, which can be updated by anyone in a wiki-style manner. With this approach, viewing a collaboratively constructed artifact gives each viewer the control of including or excluding various contributions. Moreover, each viewer can easily choose to participate and provide a new contribution to the artifact without the other authors being aware of this. If information about this new contribution is published in the Collaborilla directory, the contribution will also be seen by others.

Keyword
collaboration, semantic web, conceptual modelling, ad hoc
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-50068 (URN)2-s2.0-84898814573 (Scopus ID)
Conference
4th Conference on Professional Knowledge Management, Workshop Collaborative Knowledge Management (CoKM2007)
Note
QC 20120110Available from: 2012-01-10 Created: 2011-12-01 Last updated: 2014-04-17Bibliographically approved
2. Collaborative Tasks using Metadata Conglomerates - The Social Part of the Semantic Desktop
Open this publication in new window or tab >>Collaborative Tasks using Metadata Conglomerates - The Social Part of the Semantic Desktop
2008 (English)In: Proceedings of I-SEMANTICS ’08Graz, 2008Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents an application that enables loose and ad-hoc task collaboration for knowledge work and explicitly integrates task metadata into the collaboration process. With the increasing availability of semantic desktop technology, knowledge workers (KWers) can organize their personal information in a formalized way, including tasks. In an organization, KWers need to collaboratively access task-related information and to collaboratively work on it. In such a scenario, today’s available collaboration support applications, e.g. enterprise collaboration systems like wikis, either sacrifice end-user experience or semantic richness when dealing with structured knowledge. The presented collaborative task management (TM) application circumvents this trade-off by showing how the Kasimir TM client and the Collaborilla collaboration server interact closely. The TM client supports the KWer’s personal TM and incorporates collaborative tasks. It invokes the collaboration server which centrally manages the collaborative tasks. It implements elaborated methods for metadata sharing and collaborative editing of this shared metadata. We present the detailed proposal for an underlying architecture of the application, review related work and conclude this paper by pointing out future work.

Keyword
Task Management, Ad-hoc Collaboration, Metadata Sharing, Collaborative Metadata Editing, Semantic Desktop
National Category
Computer and Information Science
Identifiers
urn:nbn:se:kth:diva-50104 (URN)
Conference
I-SEMANTICS International Conference on Semantic Systems. Austria. September 3-5, 2008
Note

QC 20111205

Available from: 2011-12-01 Created: 2011-12-01 Last updated: 2014-06-02Bibliographically approved
3. A Mashup-friendly Resource and Metadata Management Framework
Open this publication in new window or tab >>A Mashup-friendly Resource and Metadata Management Framework
2008 (English)In: Mash-Up Personal Learning Environments (MUPPLE'08): Workshop in Conjunction with the 3rd European Conference on Technology-Enhanced Learning (ECTEL'08): Times of Convergence / [ed] Wild, Kalz, Palmér, 2008, 48-56 p.Conference paper, Published paper (Refereed)
Abstract [en]

Mashups and mashed up Personal Learning Environments require easy to use frameworks to support the ease of creation of effective services.

The focus of this paper1 lies on establishing a generic and mashup-friendly resource and metadata management. The assumption is that if we can find an appropriate level of generic functionality, the development of targeted tools (e.g. e-portfolios, PLEs, etc) will become a matter of user interface design and specialization. We hope that such a framework does not result in a single implementation but rather a wide variety of interoperable systems that leverage plenty of functionality. In this paper we look at already existing standards and initiatives and show why they are not sufficiently generic. We propose a framework and take recent developments into consideration. We also show an implementation and introduce a tangible use case.

 

National Category
Computer and Information Science
Identifiers
urn:nbn:se:kth:diva-50182 (URN)2-s2.0-84885217850 (Scopus ID)
Conference
1st Workshop MUPPLE'08. Maastricht, The Netherlands. September 17, 2008
Note

QC 20111207

Available from: 2011-12-02 Created: 2011-12-02 Last updated: 2014-04-17Bibliographically approved
4. Learning Object Annotation for Agricultural Learning Repositories
Open this publication in new window or tab >>Learning Object Annotation for Agricultural Learning Repositories
Show others...
2009 (English)In: ICALT: 2009 IEEE INTERNATIONAL CONFERENCE ON ADVANCED LEARNING TECHNOLOGIES, New York, USA: IEEE , 2009, 438-442 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper introduces a Web-based tool that has been developed to facilitate learning object annotation in agricultural learning repositories with IEEE LOM-compliant metadata. More specifically, it presents how an application profile of the IEEE LOM standard has been developed for the description of learning objects on organic agriculture and agroecology. Then, it describes the design and prototype development of the Organic.Edunet repository tool: a Web-based for annotating learning objects on organic agriculture and agroecology, organizing them in using a portfolio-like user interface in a learning repository, and then federating this repository with a network of agricultural learning repositories.

Place, publisher, year, edition, pages
New York, USA: IEEE, 2009
National Category
Computer and Information Science
Identifiers
urn:nbn:se:kth:diva-50185 (URN)10.1109/ICALT.2009.34 (DOI)000274264300124 ()2-s2.0-70449366146 (Scopus ID)
Conference
IEEE International Conference on Advanced Learning Technologies. Riga, LATVIA. JUL 15-17, 2009
Note

QC 20111207

Available from: 2011-12-02 Created: 2011-12-02 Last updated: 2015-01-20Bibliographically approved
5. An information model for managing resources and their metadata
Open this publication in new window or tab >>An information model for managing resources and their metadata
2014 (English)In: Semantic Web, ISSN 1570-0844, E-ISSN 2210-4968, Vol. 5, no 3, 237-255 p.Article in journal (Refereed) Published
Abstract [en]

Today information is managed within increasingly complicated Web applications which often rely on similar information models. Finding a reusable and sufficiently generic information model for managing resources and their metadata would greatly simplify development of Web applications. This article presents such an information model, namely the Resource and Metadata Management Model (ReM3). The information model builds upon Web architecture and standards, more specifically the Linked Data principles when managing resources together with their metadata. It allows to express relations between metadata and to keep track of provenance and access control. In addition to this information model, the architecture of the reference implementation is described along with a Web application that builds upon it. To show the taken approach in practice, several real-world examples are presented as showcases. The information model and its reference implementation have been evaluated from several perspectives, such as the suitability for resource annotation, a preliminary scalability analysis and the adoption in a number of projects. This evaluation in various complementary dimensions shows that ReM3 has been successfully applied in practice and can be considered a serious alternative when developing Web applications where resources are managed along with their metadata.

Place, publisher, year, edition, pages
IOS Press, 2014
Keyword
information model, metadata management, resource annotation, linked data, provenance
National Category
Information Systems Media and Communication Technology
Research subject
Media Technology; Computer Science; Information and Communication Technology
Identifiers
urn:nbn:se:kth:diva-144310 (URN)10.3233/SW-120090 (DOI)000357871400005 ()2-s2.0-84905000693 (Scopus ID)
Note

QC 20140417

Available from: 2014-04-16 Created: 2014-04-16 Last updated: 2017-12-05Bibliographically approved

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