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COLLABORATIVE KNOWLEDGE EVALUATION with a SEMANTIC WIKI Wikidesign

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COLLABORATIVE KNOWLEDGE EVALUATION with a SEMANTIC WIKI Wikidesign COLLABORATIVE KNOWLEDGE EVALUATION WITH A SEMANTIC WIKI WikiDesign Davy Monticolo1, Samuel Gomes2, Vincent Hilaire1 and Abder Koukam1 1SeT Laboratory, University of Technology UTBM, 90010 Belfort, France 2M3M Laboratory, University of Technology UTBM, 90010 Belfort, France Keywords: Semantic Wiki, Ontology, Knowledge Creation, Knowledge Evaluation, Multi-Agent System. Abstract: We will present in this paper how to ensure a knowledge evaluation and evolution in a knowledge management system by using a Semantic Wiki approach. We describe a Semantic Wiki called WikiDesign which is a component of a Knowledge Management system. Currently WikiDesign is use in engineering department of companies to emphasize technical knowledge. In this paper, we will explain how WikiDesign ensures the reliability of the knowledge base thanks to a knowledge evaluation process. After explaining the interest of the use of semantic wikis in knowledge management approach we describe the architecture of WikiDesign with its semantic functionalities. At the end of the paper, we prove the effectiveness of WikiDesign with a knowledge evaluation example for an industrial project. 1 INTRODUCTION in the wiki; It manages the collaborative editing i.e. if A wiki is a web site allows collaborative distant someone create a article, everybody can extend creation of information and editing of hypertext this article; content. Leuf (Leuf, 2001) was the first to propose a It proposes a strong linking, all the pages of the web site where people could create, modify, wiki are linked with each other using hyperlinks; transform and link pages all from within their browser and in a very simple way. Indeed Wikis be- It has a search function over the content of all come popular tools for collaboration on the web, and pages stored; many active online communities employ wikis to It allows the uploading of different content like exchange information. documents, images or videos. Taking consideration Indeed for the most of wikis, public or private, to all these properties, Wikis seem to become a new primary goals are to organize the collected approach to collaborative knowledge engineering information and to share it. Wikis are usually viewed based on social networks of the Web2.0 (Richards, as tools to manage online con-tent in a quick and 2009). Indeed new research works (Schaffert, 2006), easy way, by editing some simple syntax known as (Vrandecic, 2006) propose wikis to exchange wikitext (Singh, 2007). Schaffert in (Schaffert, knowledge. Knowledge is information with a 2006) enumerates the specifications of a wiki context and value that make it usable. Knowledge is system: what places someone in the position to perform a particular task by selecting, interpreting and It allows the editing via a browser; evaluation information de-pending on the context It has a simplified wiki syntax i.e. simplified (Malone, 2003), (Volkel, 2006). hypertext format usable by all the internet users; However a serious obstacle for the development It manages a rollback mechanism i.e. it is able to of Semantic Web applications is the lack of formal versioned the changes in the content each time ontologies and knowledge. Indeed, one of the main they are stored; reasons of this is the rather high technical barrier for Its access is unrestricted, everybody can write using Semantic Web technologies that deters many domain experts from formalizing their knowledge. Monticolo D., Gomes S., Hilaire V. and Koukam A. (2010). 133 COLLABORATIVE KNOWLEDGE EVALUATION WITH A SEMANTIC WIKI - WikiDesign. In Proceedings of the 12th International Conference on Enterprise Information Systems - Databases and Information Systems Integration, pages 133-141 DOI: 10.5220/0002875101330141 Copyright c SciTePress ICEIS 2010 - 12th International Conference on Enterprise Information Systems Mechanical Organizational Model OrgaDesign Organization 1 Organization 2 Organiszation n Interaction Role(i) Role(j) Conceptualization Competence(s) Competence(s) Knowledge Knowledge Capitalization Diffusion Capitalization The domain ontology OntoDesign Multi-Agent System Relation b Project Memories Relation a Relation d Building KATRAS Concept 1 Concept 2 Concept n Agents Relation c Attribute i Attribute j Attribute p Knowledge Evalution and Evaluation Knowledge Reprensation Semantic Wiki WikiDesign Web Layer Knowledge Persistent Layer Knowledge Handling Knowledge Based Layer Figure 1: StarDesign: A Knowledge Management Approach. In another hand, wiki systems are becoming structured as follows: Section 1 introduces the more and more popular as tools for content and Semantic Knowledge Wiki concept and describes information management. Much information is features which represent advantages for the nowadays available in systems like Wikipedia. knowledge management; Section 2 briefly describes Unfortunately, this vast information is not accessible the architecture of our Wiki; Section 3 presents a for machines. If a small amount of this information simple application scenario to exploit knowledge would be formalized to become knowledge, wiki and to represent it; Section 4 concludes with some systems could provide improved interfaces and perspectives. advanced searching and navigation facilities. Nevertheless, several analyses (Buffa, 2006), (Majchrzac, 2006) of traditional wikis as shown that 2 WHY USING A SEMANTIC they are not enough structured, and it’s difficult to navigate and to find the relevant information. Be- WIKI ON A KM APPROACH sides, the wiki markup language (WikiML) used by most wiki engines makes internet users reluctant to We have developed a Knowledge Management contribute to the wiki. System called StarDesign (Fischer, 2006) allowing One solution to perform the knowledge creation, capitalizing Knowledge from information shared and evaluation and navigation inside wikis is to use used by professional actors all along their technologies from the Semantic Web (Aumueller, engineering projects (Fig. 1). We use a social and 2005) to formalized information, content, structures cooperative approach in identifying knowledge and links in the wiki pages. These Wikis would take needed to be capitalized and reused inside the consideration of the semantic in their content collaboration between actors in project teams. management and become Semantic Wikis. Indeed the study of the professional actors’ roles “Semantic Wiki” systems aim to combine allows getting an organizational model (called “traditional” wiki systems with Semantic OrgaDesign) 0 leading the knowledge capitalization Technology. This combination bears much potential inside professional activities and the knowledge in many application areas. reuse. Thus we propose to use a Semantic Knowledge From this knowledge identification we have Wiki approach to complete our knowledge proposed a knowledge typology with six types management system by facilitating the knowledge (Project Context, Project Evolution, Project sharing, updating and evaluation. This article is Vocabulary, Project Process, Project Rule and 134 COLLABORATIVE KNOWLEDGE EVALUATION WITH A SEMANTIC WIKI - WikiDesign Knowledge Representation Users Profile Management Login Role Professional domain Web Layer Knowledge Wiki Pages editor (RDF extractor) Knowledge Evaluation Knowledge Modification Knowledge Annotations Query Processor Knowledge Persistent SPARQL request creation Layer Ontology OntoDesign (OWL) Project Project Project Project Project Project Knowledge Evolution Context Rule Experience Vocabulary Process Base Layer Project Memories Repositories (RDF Files) Figure 2: WikiDesign Architecture. Project Experience). This knowledge typology is a according to the ontology and is consultable by the result of a collaboration work with several professional actors. companies (Djaiz, 2008) where project teams have StarDesign is used since two years in companies determinate the information they want to capitalize but we have observed that the lack of this and to reuse all along a project. Thus this typology Knowledge Management System is that professional defines the structure of a project memory. actors can read project memories (in html or pdf This work is completed by the definition of a format) but are not able to modify it. Indeed the vocabulary and a semantic i.e. a domain ontology. system is capable to capture new knowledge during This ontology (called OntoDesign) (Monticolo, project but not allow the creation of new knowledge 2007) allows to the knowledge management system from information already stored in project to structure the knowledge according to the project memories. So we have to think about a system memory model and to exploit knowledge in line which helps professional actors to evaluate, to make with the actors’ needs. evolution or delete knowledge stored from past or The Knowledge Management System is current projects. This system will ensure the animated by a Multi Agent System (Monticolo, knowledge evolution in the KM approach. 2008) capables to lead the knowledge management Thus we propose to use a Semantic Wiki to through the 3 components presented below complete our Knowledge Management Approach in (OrgaDesign and OntoDesign). Agents are used to allowing the know-ledge evolution. The next section manage heterogeneous and distributed information. describes the Semantic Wiki Architecture called Moreover they perceive the social structure inside WikiDesign. projects with the organizational model. Thus they are able to: Identify knowledge to capitalize during the 3 WIKIDESIGN ARCHITECTURE
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