Integrating a Wiki in an ontology driven Web site: approach, architecture and application in the archaeological domain (original) (raw)
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An Ontology Driven Web Site and its Application in the Archaeological Context
… Workshop on Ontology, …, 2007
This paper will describe an approach to the design and implementation of ontology driven dynamic web sites, a kind of architecture that provides the adoption of ontologies rather than more traditional forms of persistent data storage facilities such as relational databases. This approach provides a flexible support to the design and implementation of web portals in which navigation schemes are not entirely predetermined but are instead influences by actual relationships among the contents of the ontology, that are used to generate web pages as well as hyperlinks. The application of this approach to the realization of a web portal devoted to the sharing of archaeological knowledge about the Silk Road will also be described.
SweetWiki: semantic web enabled technologies in Wiki
2006
Wikis are social web sites enabling a potentially large number of participants to modify any page or create a new page using their web browser. As they grow, wikis suffer from a number of problems (anarchical structure, large number of pages, aging navigation paths, etc.). We believe that semantic wikis can improve navigation and search. In SweetWiki we investigate the use of semantic web technologies to support and ease the lifecycle of the wiki. The very model of wikis was declaratively described: an OWL schema captures concepts such as WikiWord, wiki page, forward and backward link, author, etc. This ontology is then exploited by an embedded semantic search engine (Corese). In addition, SweetWiki integrates a standard WYSIWYG editor (Kupu) that we extended to support semantic annotation following the "social tagging" approach made popular by web sites such as flickr.com. When editing a page, the user can freely enter some keywords in an AJAX-powered textfield and an auto-completion mechanism proposes existing keywords by issuing SPARQL queries to identify existing concepts with compatible labels. Thus tagging is both easy (keyword-like) and motivating (real time display of the number of related pages) and concepts are collected as in folksonomies. To maintain and reengineer the folksonomy, we reused a web-based editor available in the underlying semantic web server to edit semantic web ontologies and annotations. Unlike in other wikis, pages are stored directly in XHTML ready to be served and semantic annotations are embedded in the pages themselves using RDF/A. If someone sends or copy a page, the annotations follow it, and if an application crawls the wiki site it can extract the metadata and reuse them.
Bringing the “Wiki-Way ” to the Semantic Web with
2008
Abstract. The Wiki and the Semantic Web can be compared as two different approaches to capturing knowledge, where the former trades away precise, explicit, and internally consistent semantics for speed and simplicity. Any attempt to bridge these two approaches has to either somehow reconcile these trades-off or make compromises one way or the other. This paper describes how Rhizome, an open source application framework for developing “Semantic Wiki ” applications, attempts to bridge these approaches. Rhizome includes a text formatting language called ZML whose syntax is similar to text formatting languages found in most Wikis but with enhancement to make it easy for users to express explicit and arbitrary semantics. Rhizome relies on “shredding”, a flexible framework for specifying rules for characterizing semi-structured content with RDF and providing an ontology that can precisely describe the relationship between the source content and the resulting statements. 1
Web Semantics: Science, Services and Agents on the World Wide Web, 2008
Everyone agrees that user interactions and social networks are among the cornerstones of "Web 2.0". Web 2.0 applications generally run in a web browser, propose dynamic content with rich user interfaces, offer means to easily add or edit content of the web site they belong to and present social network aspects. Well-known applications that have helped spread Web 2.0 are blogs, wikis, and image/video sharing sites; they have dramatically increased sharing and participation among web users. It is possible to build knowledge using tools that can help analyze users' behavior behind the scenes: what they do, what they know, what they want. Tools that help share this knowledge across a network, and that can reason on that knowledge, will lead to users who can better use the knowledge available, i.e., to smarter users. Wikipedia, a wildly successful example of web technology, has helped knowledge-sharing between people by letting individuals freely create and modify its content. But Wikipedia is designed for people-today's software cannot understand and reason on Wikipedia's content. In parallel, the "semantic web", a set of technologies that help knowledge-sharing across the web between different applications, is starting to gain attraction. Researchers have only recently started working on the concept of a "semantic wiki", mixing the advantages of the wiki and the technologies of the semantic web. In this paper we will present a state-of-the-art of semantic wikis, and we will introduce SweetWiki, an example of an application reconciling two trends of the future web: a semantically augmented web and a web of social applications where every user is an active provider as well as a consumer of information. SweetWiki makes heavy use of semantic web concepts and languages, and demonstrates how the use of such paradigms can improve navigation, search, and usability.
WikiBridge: a Semantic Wiki for Archaeological Applications
2013
This paper details the main concepts and the architecture of WikiBridge, a semantic wiki, developed for the project CARE (Corpus Architecturae Religiosae Europeae – IV-X saec.). The aim of the CARE project is the constitution of an integrated corpus of the European Christian buildings dated from the 4th to the beginning of the 11th century. WikiBridge, has been developed in order to: 1) allow collaborative work of researchers involved in the project, and 2) open the corpus to a large public. WikiBridge combines the collaborative and traceability aspects of wiki, with se mantic consistency and query capabilities. Semantics is guaranteed by an ontology based on CIDOC-CRM.
Weerkat: An extensible semantic wiki
2006
Wikis are Web applications that blur the boundaries between readers and authors, allowing non-technical people to author hypertexts through a web interface. A Semantic Wiki is a Wiki that attempts the same thing with the Semantic Web, allowing non-technical users to create semantic resources and/or ontologies. In this paper we characterise the different ways in which a Wiki might support the Semantic Web and present Weerkat, a modular and extensible Wiki that has ontological hypertext support.
Semantic MediaWiki in Operation: Experiences with Building a Semantic Portal
Lecture Notes in Computer Science, 2010
Wikis allow users to collaboratively create and maintain content. Semantic wikis, which provide the additional means to annotate the content semantically and thereby allow to structure it, experience an enormous increase in popularity, because structured data is more usable and thus more valuable than unstructured data. As an illustration of leveraging the advantages of semantic wikis for semantic portals, we report on the experience with building the AIFB portal based on Semantic MediaWiki. We discuss the design, in particular how free, wiki-style semantic annotations and guided input along a predefined schema can be combined to create a flexible, extensible, and structured knowledge representation. How this structured data evolved over time and its flexibility regarding changes are subsequently discussed and illustrated by statistics based on actual operational data of the portal. Further, the features exploiting the structured data and the benefits they provide are presented. Since all benefits have its costs, we conducted a performance study of the Semantic MediaWiki and compare it to MediaWiki, the nonsemantic base platform. Finally we show how existing caching techniques can be applied to increase the performance.
MERGING WIKI AND ONTOLOGICAL APPROACH TO E-LEARNING PORTAL DESIGN
2009
The paper presents an ontological approach towards e-learning portal development. Special stress is put on structuring procedure as it is the kernel of ontology development and on visual design as a powerful learning mindtool. We also describe the experience of ontology developing based on Knowledge Engineering educational course in St.Petersburg State Polytechnical University and "OntolingeWiki" tool for creating ontologybased e-learning portals.
Ontological methods and tools for semantic extension of the media WIKI technology
PROBLEMS IN PROGRAMMING
Practical aspects of ontological approach to organization of intelligent Wiki-based information resources (IR) are considered. We analyze the main features, capabilities and limitations of MediaWiki as a technological platform for development of the Web-based information resource and suggest main directions of its refinement. We propose an abstract model of MediaWiki architecture that formalizes relations between the main components of this software environment and analyze the ways of its semantic extensions based on ontological representation of domain knowledge. An original algorithm of semantic Wiki pages matching with domain ontology is developed. We propose an ontological model of IR that formalizes its knowledge base structure and explicitly performs main features of typical information objects (TIO) of this IR. Such TIOs depend on domain specifics and purposes of IR, therefore their development has to involve domain experts and knowledge engineers. Use of ontology correspondi...