Stefan Decker

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Stefan Decker is an author.


Only those publications related to wikis are shown here.
Title Keyword(s) Published in Language DateThis property is a special property in this wiki. Abstract R C
Arguments about deletion: How experience improves the acceptability of arguments in ad-hoc online task groups Argumentation schemes
Collaboration and conflict
Critical questions
Online argumentation
Peer production
English 2013 Increasingly, ad-hoc online task groups must make decisions about jointly created artifacts such as open source software and Wikipedia articles. Time-consuming and laborious attention to textual discussions is needed to make such decisions, for which computer support would be beneficial. Yet there has been little study of the argumentation patterns that distributed ad-hoc online task groups use in evaluation and decision-making. In a corpus of English Wikipedia deletion discussions, we investigate the argumentation schemes used, the role of the arguer's experience, and which arguments are acceptable to the audience. We report three main results: First, the most prevalent patterns are the Rules and Evidence schemes from Walton's catalog of argumentation schemes [34], which comprise 36% of arguments. Second, we find that familiarity with community norms correlates with the novices' ability to craft persuasive arguments. Third, acceptable arguments use community-appropriate rhetoric that demonstrate knowledge of policies and community values while problematic arguments are based on personal preference and inappropriate analogy to other cases. Copyright 2013 ACM. 0 0
Deletion discussions in Wikipedia: Decision factors and outcomes Articles for deletion
Collaboration and conflict
Factors analysis
Online argumentation
WikiSym 2012 English 2012 Deletion of articles is a common process in Wikipedia, in order to ensure the overall quality of the encyclopedia. Yet, there is a need to better understand the procedures in order to promote the best decisions without unnecessary community work. In this paper, we study deletion in Wikipedia, drawing from factor analysis, and taking an in-depth, content-analysis-based approach. We address three research questions: First, what factors contribute to the decision about whether to delete a given article? Second, when multiple factors are given, what is the relative importance of those factors? Third, what are the outcomes of deletion discussions, both for articles and for the community? We find that multiple factors contribute to the assessment of an article, and we discuss their relative frequency. Further, we show how the assessment timeline focuses attention on improving borderline articles that have the potential to meet Wikipedia's content inclusion policies, and we highlight the role of novice contributors in this improvement process. 0 0
2LIP: Filling the gap between the current and the three-dimensional web 2LIP
3D hypermedia
3D Web
Proceedings of Web3D 2009: The 14th International Conference on Web3D Technology English 2009 In this article we present a novel approach, the 2-Layer Interface Paradigm (2LIP), for designing simple yet interactive 3D web applications, an attempt to marry advantages of 3D experience with the advantages of the narrative structure of hypertext. The hypertext information, together with graphics, and multimedia, is presented semi-transparently on the foreground layer. It overlays the 3D representation of the information displayed in the background of the interface. Hyperlinks are used for navigation in the 3D scenes (in both layers). We introduce a reference implementation of 2LIP: Copernicus - The Virtual 3D Encyclopedia, which can become a model for building 3D Wikipedia. Based on the evaluation of Copernicus we show that designing web interfaces according to 2LIP provides users with a better experience during browsing the Web, has a positive effect on the visual and associative memory, improves spatial cognition of presented information, and increases overall user's satisfaction without harming the interaction. 0 0
3DWiki: The 3D wiki engine 2LIP
3D hypermedia
3D web
3D wiki
WikiSym English 2009 We demonstrate one of the potential paths of the evolution of wiki engines towards Web 3.0. We introduce 3dWiki - the 3D wiki engine, which was built according to 2-Layer Interface Paradigm (2LIP). It was developed for use by Copernicus, our vision of a 3D encyclopedia. In the demonstration: • We give an overview of 2-Layer Interface Paradigm, an attempt to marry advantages of 3D experience with the advantages of narrative structure of hypertext. • We describe step by step how to create an article for Copernicus: from creating models for the 3D background, through authoring the content, creating the c-links, to publishing the result in our encyclopedia. • We show how to use a physics engine in our wiki. Copyright 0 0
Personal knowledge management for knowledge workers using social semantic technologies Folksonomy
Personal knowledge management
Semantic web
Semantic wiki
Social tagging
International Journal of Intelligent Information and Database Systems English 2009 Knowledge workers have different applications and resources in heterogeneous environments for doing their knowledge tasks and they often need to solve a problem through combining several resources. Typical personal knowledge management (PKM) systems do not provide effective ways for representing knowledge worker's unstructured knowledge or idea. In order to provide better knowledge activity for them, we implement Wiki-based social Network Thin client (WANT) that is a wiki-based semantic tagging system for collaborative and communicative knowledge creation and maintenance for a knowledge worker. And also, we suggest the social semantic cloud of tags (SCOT) ontology to represent tag data at a semantic level and combine this ontology in WANT. WANT supports a wide scope of social activities through online mash-up services and interlink resources with desktop and web environments. Our approach provides basic functionalities such as creating, organising and searching knowledge at individual level, as well as enhances social connections among knowledge workers based on their activities. Copyright 0 0
Semantic search for enterprise 2.0 Enterprise 2.0
Semantic middleware
Semantic Wikis
CEUR Workshop Proceedings English 2009 In this paper, we describe how Enterprise 2.0 can benefit from lightweight semantics for information integration, enabling a better and easier search process for the end-users. 0 0
Applications of Semantic Web Methodologies and Techniques to Social Networks and Social Websites Reasoning Web 2008 One of the most visible trends on the Web is the emergence of {Social} Web" sites which facilitate the creation and gathering of knowledge through the simplification of user contributions via blogs tagging and folksonomies wikis podcasts and the deployment of online social networks. The Social Web has enabled community-based knowledge acquisition with efforts like the Wikipedia demonstrating the "wisdom of the crowds" in creating the world's largest online encyclopaedia. Although it is difficult to define the exact boundaries of what structures or abstractions belong to the Social Web a common property of such sites is that they facilitate collaboration and sharing between users with low technical barriers although usually on single sites. As more social websites form around the connections between people and their objects of interest and as these "object-centred networks" grow bigger and more diverse more intuitive methods are needed for representing and navigating the content items in these sites: both within and across social websites. Also to better enable user access to multiple sites interoperability among social websites is required in terms of both the content objects and the person-to-person networks expressed on each site. This requires representation mechanisms to interconnect people and objects on the Social Web in an interoperable and extensible way. The Semantic Web provides such representation mechanisms: it can be used to link people and objects by representing the heterogeneous ties that bind us all to each other (either directly or indirectly). In this paper we will describe methods that build on agreed-upon Semantic Web formats to describe people content objects and the connections that bind them together explicitly or implicitly enabling social websites to interoperate by appealing to some common semantics. We will also focus on how developers can use the Semantic Web to augment the ways in which they createreuse and link content on social networking sites and social websites." 0 0
How semantics make better wikis Information access
Semantic annotation
Semantic web
Semantic wiki
World Wide Web English 2006 0 0
Semantic wikis for personal knowledge management Lecture Notes in Computer Science English 2006 Wikis are becoming popular knowledge management tools. Analysing knowledge management requirements, we observe that wikis do not fully support structured search and knowledge reuse. We show how Semantic wikis address the requirements and present a general architecture. We introduce our SemperWiki prototype which offers advanced information access and knowledge reuse. 0 0