This paper presents a new method for publishing and consuming RDF data using object-oriented programming. We improve Object Triple Mapping (OTM) by separating (1) the transformation process between object-oriented data and RDF data from (2) explaining the transformation results using established Semantic Web vocabulary. To achieve this separation, we introduce canonical vocabulary for object models. As a result, the Semantic Web expertise required to develop RDF-enabled applications is reduced.
Following the ideas of Vannevar Bush (1945) and Douglas Engelbart (1963), this thesis explores how computers can help humans to be more intelligent. More precisely, the idea is to reduce limitations of cognitive processes with the help of knowledge cues, which are external reminders about previously experienced internal knowledge. A knowledge cue is any kind of symbol, pattern or artefact, created with the intent to be used by its creator, to reevoke a previously experienced mental state, when used. The main processes in creating, managing and using knowledge cues are analysed. Based on the resulting knowledge cue life-cycle, an economic analysis of costs and benefits in Personal Knowledge Management (PKM) processes is performed. The main result of this thesis is a metamodel for representing knowledge cues, which is called Conceptual Data Structures (CDS). It consists of three parts: (1) A simple, expressive data-model; (2) A small relation ontology which unifies the relations found in the cognitive models of tools used for PKM tasks, e.g., documents, mind-maps, hypertext, or semantic wikis. (3) An interchange format for structured text together with corresponding wiki syntax. These three parts together allow representing knowledge cues in varying degrees of granularity (number and size of items), structuredness (relations between items), and formality (fraction of items typed with items from a metamodel) in a unified way. The CDS model has been implemented in Java. Based on this reference implementation, several tools for personal knowledge management have been created (one by the author of this work and two external tools). All three tools have been used in a comparative evaluation with 125 person-hours. In the evaluation, the Conceptual Data Structures (CDS) data model has successfully been used to represent and use (retrieve) artefacts in a uniform fashion that are in different degrees of formalisation. Although still research prototypes, the CDS Tools had interaction efficiency and usability ratings compared to Semantic MediaWiki (SMW). Using CDS Tools, users produced significantly more non-trivial triples than with SMW. The created Relation and concept hierarchies can be re-used in a semantic desktop.
Buchtitel:ICEIS 2010, 12th International Conference on Enterprise Information Systems, Funchal, Portugal, June 2010
Verlag:-
Organisation:INSTICC (Institute for Systems and Technologies of Information, Control and Communication)
ISSN:1865-1348
We present iMapping, a novel approach for visually structuring information objects on the desktop. iMapping is developed on top of semantic desktop technologies and particularly supports personal knowledge management of knowledge workers. iMapping has been designed to combine the advantages of the three most important visual mapping approaches, Mind-Mapping, Concept Maps and Spatial Hypertext. We describe the design and prototypical implementation of iMapping – which is fundamentally based on deep zooming and nesting. iMapping bridges the gap between unstructured content (like informal text notes) and semantic models by allowing to easily create on-the-fly annotations with the whole range of content links, from vague associations to formal relationships. Our first experimental evaluations indicate a favorable user experience and functionality, compared with state-of-the-art, commercial Mind-Mapping software.
Buchtitel:ICEIS 2010, 12th International Conference on Enterprise Information Systems, Funchal, Portugal, June 2010 (Volume 3 — AIS)
Seiten:332–337
Organisation:INSTICC (Institute for Systems and Technologies of Information, Control and Communication)
ISSN:1865-1348
The paper collects requirements for a specific class of PKM software which supports personal note taking and extends human memory by information management. It introduces the knowledge-cue life cycle which describes how information artefacts can be used for helping to denote, remember, use, and further develop knowledge embodied in people's heads, and derives a comprehensive requirements catalogue to be fulfilled by knowledge articulation tools used in PKM.
Buchtitel:WM2009: 5th Conference on Professional Knowledge Management, Solothurn, Switzerland
Ausgabe:145
Seiten:299–308
Verlag:Gesellschaft f. Informatik e.V.
ISBN:978-3-88579-239-0
ISSN:1617-5468
We motivate how personal knowledge models can make knowledge workers more productive. The external representation can help him to tackle typical cognitive limits. They do so by allowing a knowledge worker to efficiently and effectively model her or his personal knowledge in a mix of informal and formal knowledge. As a result, more knowledge can be re-used cheaper, and hopefully, more complex problems can be tackled.
The "Social Semantic Desktop" project NEPOMUK, that has been going on for three years (2006-2008) has now reached its end. This deliverable reports the achievements of the third and final year of NEPOMUK's work package 1 named "Knowledge Articulation and Visualisation". Previous work in this work-package has been described in the deliverables D1.1 "Semantic Wiki Prototypes" (Kotelnikov, Polonsky, Kiesel, Völkel, Haller, Sogrin, Lannerö & Davis 2006), D1.2 "Conceptual Data Structure Tools" (Völkel, Haller, Bolinder, Davis, Edlund, Groth, Gudjonsdottir, Kotelnikov, Lannerö, Lundquist, Sogrin, Sundblad & Westerlund 2008) and D1.4 "Design methods and work process" (Lindquist, Gudjonsdottir, Westerlund, Groth, Sundblad & Bogdan 2008) and many additional publications referred to in these deliverables. The multitude of tools described in D1.2 "Conceptual Data Structure Tools", has been integrated more tightly - with one another and with the NEPOMUK back-end services: Some have been integrated into the rich and monolithic NEPOMUK application framework PSEW, some have fused into small stand-alone applications that all connect to the NEPOMUK back-end to integrate and share their contents with other NEPOMUK components.
Purpose - The purpose of the paper is to design a model and tools that are capable of representing and handling personal knowledge in different degrees of structuredness and formalisation, and usable and extensible by end-users. Design/methodology/approach - This paper presents the results of analysing literature and various data models and formalisms used to structure information on the desktop. Findings - The unified data model (CDS) is capable of representing structures from various information tools, including documents, file systems, hypertext, tagging and mind maps. The five knowledge axes of CDS are identity, order, hierarchy, annotation and linking. Research limitations/implications - The CDS model is based on text. Extensions for multimedia annotations have not been investigated. Practical implications - Future personal knowledge management (PKM) tools should take the mentioned shortcoming of existing PKM tools into account. Implementing the CDS model can be a way to make PKM tools interoperable. Originality/value - This paper presents research combining cognitive psychology, personal knowledge management and semantic web technologies. The CDS model provides a way to let end-users work on different levels of granularity and different levels of formality in one environment.
Invited Talk at the yearly Symposium of the Arbeitskreis Wissensmanagement (AKWM, https://www.arbeitskreis-wissensmanagement.org/ ) in Karlsruhe at 09.10.2008.
Buchtitel:Proc. of 10th International Conference on Enterprise Information Systems
Knowledge Management (KM) tools have become an established part of Enterprise Information Systems in the recent years. While traditional KM initiatives typically address knowledge exchange within project teams, communities of practice, within a whole enterprise, or even within the extended enterprise (customer knowledge management, KM in the supply chain, . . . ), the relatively new area of Personal Knowledge Management (PKM) investigates how knowledge workers can enhance their productivity by better encoding, accessing, and reusing their personal knowledge. In this paper, we present a cost-benefit analysis of PKM - where benefit comes from efficiently finding task-specific, useful knowledge items, and costs come from search efforts as well as externalisation and (re-)structuring efforts for the personal knowledge base.
Buchtitel:Proc. of the Third Workshop on Semantic Wikis - The Wiki Way of Semantics
This paper presents a tool for semantic personal knowledge management called Hypertext Knowledge Workbench (HKW), an editor and browser for semantic personal knowledge models. The tool is designed to be used by a single person to manage her personal notes about any topic that seems relevant. Existing wikis and semantic wikis represent content as pages with a title and content. Hypertext-based Knowledge Workbench (HKW) offers a more powerful yet simple to use conceptual model and allows entering and using knowledge in different degrees of granularity and formality.
Max Völkel,
Heiko Haller,
William Bolinder,
Brian Davis,
Henrik Edlund,
Kristiina Groth,
Rosa Gudjonsdottir,
Mikhail Kotelnikov,
Pär Lannerö,
Sinna Lundquist,
Mikhail Sogrin,
Yngve Sundblad,
Bosse Westerlund
Nummer:1.2
Institution:nepomuk consortium
In this project deliverable present the idea of Conceptual Data Structures (CDS), a unifying data model for end-user semantic personal knowledge management. We present concepts as well as a software framework. We describe two main user interface prototypes based on the CDS framework and their evaluations. First, the NEPOMUK hypertext knowledge workbench (HKW) is described. Second we describe the visual knowledge workbench (VKW), consisting of two parts: iMapping and QuiKey. iMapping is graphical UI concept for personal knowledge mapping, QuiKey is a ``visual command line for knowledge articulation and querying and browsing. All prototypes are based on the same CDS API and are hence interoperable. The CDS API is integrated with the NEPOMUK RDF repository. We describe the current and planned integration status. Additionally, we describe some natural language processing tools and a WikiModel parser framework developed in our workpackage and how they integrate with CDS.
Buchtitel:Proceedings of Workshop on Foundations and Applications of the Social Semantic Desktop
Knowledge articulation costs are the bottleneck for efficient Personal Knowledge Management (PKM). Current tools either allow to few structures and hence have to rely only on keyword searches in plain text, allow no associative browsing, and cannot infer new knowledge. Semantic modelling tools on the other hands are too cumbersome to use and force the user to formalise everything all the time - this is too costly in PKM usage. Conceptual Data Structures (CDS) are what is found to be the largest common denominator of information structures used in common knowledge artefacts. CDS allow step-wise and gradual formalisation and representing the spectrum from informal notes up to formal ontologies. This paper describes the CDS data model and ontology in detail and shows how CDS can largely be implemented with existing semantic web technologies.
Wikipedia is the world's largest collaboratively edited source of encyclopaedic knowledge. But in spite of its utility, its content is barely machine-interpretable and only weakly structured. With Semantic MediaWiki we provide an extension that enables wiki-users to semantically annotate wiki pages, based on which the wiki contents can be browsed, searched, and reused in novel ways. In this paper, we give an extended overview of Semantic MediaWiki and discuss experiences regarding performance and current applications.
Buchtitel:Proceedings of the 3rd International Conference on Semantic Technologies
Seiten:254–261
There is currently no model that is capable of representing the actual content of web resources together with their semantic web meta-data. This paper presents requirements for semantic content management, a unified human-browsable and human-editable semantic web content model (SWCM), and its implementation swecr.
Buchtitel:Proceedings of Wikimania 2006 - The Second International Wikimedia Conference
Organisation:Wikimedia Foundation
At last year's Wikimania, we presented the idea of combining Wikipedia, the world's biggest collaboratively created source of encyclopedic knowledge, and the Semantic Web, a project to create a world wide decentralized knowledge base on top of the current web. We identified the need to allow knowledge processing in a computer assisted way within Wikipedia, for example to intelligently query the knowledge base, and allow for new navigation, browsing and knowledge management features, like automatically created lists or unit conversion. To this end, we proposed the introduction of typed links as a simple and unintrusive way for rendering large parts of Wikipedia machine readable. Since last year the proposal was discussed, changed and extended. Implementation has started, and the extension has been installed and tested in several sites. In this paper we present the extensions that have been included to the original proposal and the current state of the implementation, as well as some of the future plans.
Buchtitel:Proc. of the 4th Conference on Professional Knowledge Management
Ausgabe:2
Seiten:209–216
Verlag:GITO mbh, Berlin
This paper reviews the document concept and compares analogue and digital documents. It introduces knowledge models as a superset of documents and explains the benefits of using knowledge models in Personal Knowledge Management (PKM).
Ziel des BMBF-Forschungsprojekts WAVES ist es, in verteilten Softwareprojekten den Aufbau und Austausch von informellem Wissen zu fördern und seine schrittweise Strukturierung und Vernetzung zu unterstützen. Dabei wollen wir einen möglichst transparenten Zugang zu drei überlappenden "Wissens-Sphären" erlauben: (1) zu persönlichem Wissen; (2) zu organisationsinternem bzw. team- oder projektbezogenem Wissen; und (3) zu öffentlichem, allgemein zugänglichem Wissen.
Institution:Deutsches Forschungszentrum für Künstliche Intelligenz GmbH
Archivierungsnummer:1464
The Resource Description Framework RDF allows you to describe web documents and resources from the real world-people, organisations, things- in a computer-processable way. Publishing such descriptions on the web creates the semantic web. URIs are very important as the link between RDF and the web. This article presents guidelines for their effective use. We discuss two strategies, called 303 URIs and hash URIs. We give pointers to several web sites that use these solutions, and briefly discuss why several other proposals have problems.
Das vorliegende Dokument fasst den im Rahmen von WAVES ermittelten Stand der Technik zusammen. Das Dokument ist hierbei lediglich ein "Snapshot" des im WAVESWiki https://team.waves.fzi.de zu findenden Inhalts. Da im Laufe des Projekts der Stand der Technik permanent aktualisiert wird, stellt das Wiki die zu bevorzugende Informationsquelle dar.
Knowledge articulation, both individual and collaborative, is an integral part of a social semantic desktop. In Nepomuk, this articulation is mediated by a semantic wiki developed in the course of the project and integrated with the Nepomuk platform. Wikis have simplified authoring and sharing of unstructured content. Semantic wikis aim at semantically annotating wiki content and deriving benefits from this annotation. The challenge is to improve information retrieval and management without sacrificing the trademark wiki flexibility and ease of use. We have analyzed the state-of-the-art of both traditional wikis and semantic wiki prototypes in order to identify successful design solutions and popularity factors (Chapter 2). Wherever possible, the results have been applied in the ongoing development of the three Nepomuk wiki prototypes (described in Chapter 3). The links to test the prototypes are provided in the Appendix. Just as there are many traditional wiki engines, several approaches are possible to building semantic wikis. However, semantics offers new opportunities for communication between different wiki engines. We have developed proposals and prototypes of semantics-based and other integration methods (Chapter 4). Language analysis algorithms can greatly simplify formal content annotation, although they often require human input to reduce error. Some of the Nepomuk wiki prototypes rpovide features for an effective human-computer cooperation in content structuring (Chapter 5). We have evaluated the Nepomuk semantic wiki prototypes based on the requirements derived in the four Nepomuk case studies (Chapter 6). We have found that the prototypes already satisfy several important requirements, although much still remains to be done. Based on the gathered information, a roadmap for the subsequent Nepomuk semantic wiki development has been determined (Chapter 7).
Herausgeber:Isabel Cruz and Stefan Decker and Dean Allemang and Chris Preist and Daniel Schwabe and Peter Mika and Mike Uschold and Lora Aroyo
Buchtitel:Proceedings of the 5th International Semantic Web Conference (ISWC06)
Ausgabe:4273
Seiten:935–942
Verlag:Springer
ISBN:978-3-540-49029-6
Semantic MediaWiki is an extension of MediaWiki - a widely used wiki-engine that also powers Wikipedia. Its aim is to make semantic technologies available to a broad community by smoothly integrating them with the established usage of MediaWiki. The software is already used on a number of productive installations world-wide, but the main target remains to establish "Semantic Wikipedia" as an early adopter of semantic technologies on the web. Thus usability and scalability are as important as powerful semantic features.
Knowledge domains and their semantic representations via ontologies are typically subject to change in practical applications. Therefore, especially in distributed environments, change management for ontologies becomes a crucial aspect. In order to handle the these issues, we propose SemVersion, an RDF-centric versioning approach and its integration as the Semantic Versioning Manager plug-in in the Protégé Ontology Editor.
Buchtitel:Proceedings of IADIS International Conference on WWW/Internet
Ausgabe:1
Seiten:195-202
Verlag:IADIS
Organisation:IADIS
Knowledge domains and their formal representations via ontologies are typically subject to change in practical applications. Additionally, engineering of ontologies often takes place in distributed settings where multiple independent users interact. Therefore, change management for ontologies becomes a crucial aspect for any kind of ontology management environment. This paper introduces a new RDF-centric versioning approach and an implementation called SemVersion. SemVersion provides structural and semantic versioning for RDF models and RDF-based ontology languages like RDFS.
Buchtitel:Proceedings of the 6th International Conference on Knowledge Management (I-KNOW 06), Graz, Austria, September 6-8, 2006
Today, most computer users work with traditional hierarchical file systems for organizing large amounts of personal files. Recently, tagging has grown popular as an alternative means of organizing information resources. We argue that tagging is a powerful paradigm for efficient information access which overcomes many deficiencies of hierarchical file systems, especially in the context of the organization of large quantities of personal files. In this paper we present TagFS, a filesystem with tagging support which aims at a seamless integration of the tagging paradigm with local applications. While retaining the notions of directories and files and providing all standard filesystem operations, the semantics of these primitives are changed to modifications of the tag annotations.
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.
Buchtitel:Proc. of the 14th International Conference on Conceptual Structures 2006
In an attempt to create a lean vocabulary for incremental recording and step-wise formalisation of personal knowledge, we identified a set of common knowledge structures. These Conceptual Data Structures (CDS) were found to be inherent to a variety of different knowledge artefacts ranging from vague paper notes to highly structured documents. CDS is suitable for representing knowledge in various degrees of formalisation a uniform fashion, allowing gradual migration. CDS serves two purposes: First, as a guideline for future Personal Knowledge Management (PKM) tools, providing a set of crucial structural primitives. Second, the RDF-based representation of CDS can serve as a knowledge exchange format. It is capable of representing also vague or even inconsistent knowledge structures between people and PKM tools without unnecessary loss of information.
Buchtitel:Proceedings of the 9th International Protege Conference
Knowledge domains and their semantic representations via ontologies are typically subject to change in practical applications. Additionally, engineering of ontologies often takes place in distributed settings where multiple independent users interact. Therefore, change management for ontologies becomes a crucial aspect for any kind of ontology management environment. We introduce a new RDF-centric versioning approach and an implementation called SemVersion integrated as the Semantic Versioning Manager plug-in in Protégé. SemVersion provides structural and semantic versioning for RDF models and RDF-based ontology languages like RDFS.
Herausgeber:Sebastian Schaffert, Max Völkel, Stefan Decker
Buchtitel:Proceedings of the First Workshop on Semantic Wikis–From Wiki To Semantics
Ausgabe:1
Nummer:1
iMapping is a visual technique for structuring information objects. It is based on research in the fields of visual mapping techniques, Information Visualisation and cognitive psychology. iMapping uses a Zooming User Interface to facilitate navigation and to help users maintain an overview in the knowledge space. An iMap is comparable to a large whiteboard where wiki-pages can be positioned like post-its but also nested into each other. Augmenting Wikis by providing spatial browsing and zooming facilities makes it easier to structure content in an intuitive way. Especially semantic wikis, which typically contain more fine-grained content, and stress the structure between information items, can benefit from a graphical approach like iMapping, that allows to display multiple such items and multiple wiki-pages in one view. This paper describes the iMapping approach in general, and briefly how it will be applied as a rich client front-end to the SemWiki engine.
Buchtitel:Proceedings of the First Workshop on Semantic Wikis–From Wiki To Semantics
Semantic Wikis allow users to semantically annotate their Wiki content. The particular annotations can differ in expressive power, simplicity, and meaning. We present an elaborate conceptual model for semantic annotations, introduce a unique and rich Wiki syntax for these annotations, and discuss how to best formally represent the augmented Wiki content. We improve existing navigation techniques to automatically construct faceted browsing for semistructured data. By utilising the Wiki annotations we provide greatly enhanced information retrieval. Further we report on our ongoing development of these techniques in our prototype SemperWiki.
We provide an extension to be integrated in Wikipedia, that allows the typing of links between articles and the specification of typed data inside the articles in an easy-to-use manner. Enabling even casual users to participate in the creation of an open semantic knowledge base, Wikipedia has the chance to become a resource of semantic statements, hitherto unknown regarding size, scope, openness, and internationalisation. These semantic enhancements bring to Wikipedia benefits of today's semantic technologies: more specific ways of searching and browsing. Also, the RDF export, that gives direct access to the formalised knowledge, opens Wikipedia up to a wide range of external applications, that will be able to use it as a background knowledge base.
Buchtitel:Proceedings of the 15th international conference on World Wide Web, WWW 2006, Edinburgh, Scotland, May 23-26, 2006
Seiten:585–594
Verlag:ACM
Wikipedia is the world's largest collaboratively edited source of encyclopaedic knowledge. But in spite of its utility, its contents are barely machine-interpretable. Structural knowledge, e.g. about how concepts are interrelated, can neither be formally stated nor automatically processed. Also the wealth of numerical data is only available as plain text and thus can not be processed by its actual meaning. We provide an extension to be integrated in Wikipedia, that allows the typing of links between articles and the specification of typed data inside the articles in an easy-to-use manner. Enabling even casual users to participate in the creation of an open semantic knowledge base, Wikipedia has the chance to become a resource of semantic statements, hitherto unknown regarding size, scope, openness, and internationalisation. These semantic enhancements bring to Wikipedia benefits of today's semantic technologies: more specific ways of searching and browsing. Also, the RDF export, that gives direct access to the formalised knowledge, opens Wikipedia up to a wide range of external applications, that will be able to use it as a background knowledge base. In this paper, we present the design, implementation, and possible uses of this extension.
Developers used to object oriented programming have to make a paradigm shift in order to produce and manage Semantic Web data, e. g. RDF. In this paper we describe the tool RDFReactor which transforms a given ontology in RDF Schema into a familiar, dynamic, object-oriented Java API – at the push of a button. Developers then are able to interact with java instances, thus allowing them to stay in their own world. The generated proxy objects contain no state and delegate all method calls to RDF model updates and queries. RDFReactor potentially turns every Java developer into a Semantic Web application developer and enables them to use RDF correctly, efficiently and effectively without even knowing it.
SemVersion is a generic, extendable multi-language ontology versioning system, that can help research and industry to employ ontology based technologies in dynamic settings. This deliverable describes the requirements for and design of SemVersion.
Buchtitel:Proceedings of the First Workshop on Semantic Wikis–From Wiki To Semantics
Wikis tend to be used more and more in world-wide, intranet and increasingly even in personal settings. Current wikis are data islands. They are open for everyone to contribute, but closed for machines and automation. In this paper we define a wiki interchange format (WIF) that allows data exchange between wikis and related tools. Different from other approaches, we also tackle the problem of page content and annotations. The linking from formal annotations to parts of a structured text is analysed and described.
Managing knowledge is crucial in our economy. We derive requirements on personal knowledge management (finding, reminding, collaboration, knowledge re-use and cognitively adequate interfaces) from cognitive psychological research and analyse the limitations of current solutions. We introduce a RESTful, wiki-based, open architecture for semantic personal knowledge management that fulfills the analysed requirements to a high extent and gives the user a uniform way to work with knowledge on all layers (syntax, structure, formal semantics). We discuss architectural considerations and describe two implementations.
To build semantic web applications, developers must master three things at the same time: Their programming language, the semantic web languages (RDF, RDFS and OWL), and the web protocols (HTTP). This paper presents a framework, semweb4j, that turns Java developers into semantic web developers without requiring them to learn RDF, RDFS, HTTP or Servlets. We present a triple store abstraction layer (RDF2Go), an
Herausgeber:Stefan Decker and Jack Park and Dennis Quan and Leo Sauermann
Buchtitel:Proceedings of the 1st Workshop on The Semantic Desktop. 4th International Semantic Web Conference (Galway, Ireland)
Ausgabe:175
Verlag:CEUR-WS
ISSN:1613-0073
DeepaMehta is an open source semantic desktop application based on the topic maps standard. It’s conceptualisation and especially the innovative graph-based user interface have been guided by findings in cognitive psychology in order to provide a cognitively adequate working environment for knowledge workers of all kind. DeepaMehta aims to evolve nowadays’ separated desktop applications into an integrated workspace enabling the user to organize, describe and relate information objects like text notes, external documents and media, browse the web, search databases and create semantic networks - all this in one seamless, semantics-enabled desktop environment.
Developers familiar with object oriented programming languages have to make a paradigm shift in order to produce and manage data usable on the Semantic Web (e.g. RDF). In this paper we describe the tool RDFReactor which transforms a given ontology in RDF Schema into a familiar, dynamic, object-oriented Java API – at the push of a button. Developers then are able to interact with java instances, thus allowing them to stay in their own world. The generated proxy objects contain no state and delegate all method calls to RDF model updates and queries. RDFReactor potentially turns every Java developer into a Semantic Web application developer and enables them to use RDF correctly, efficiently and effectively without even knowing it.
Buchtitel:Proceedings of the First International Symposium on Wikis
Current Wiki engines are mostly monolithic applications which intermingle parser, user interface and data management backend. In this paper we show how these three components can be realised as lightweight, REST-style web services. We explain why this separation is useful and how the wiki community benefits from such an approach. Additionally, the presented wiki allows semantic statements and queries over the model.
Buchtitel:Proceedings of Wikimania 2005 - The First International Wikimedia Conference
Verlag:Wikimedia Foundation
Wikipedia is the biggest collaboratively created source of encyclopaedic knowledge. Growing beyond the borders of any traditional encyclopaedia, it is facing new problems of knowledge management: The current excessive usage of article lists and categories witnesses the fact that 19th century content organization technologies like inter-article references and indices are no longer sufficient for today's needs. Rather, it is necessary to allow knowledge processing in a computer assisted way, for example to intelligently query the knowledge base. To this end, we propose the introduction of 'typed links' as an extremely simple and unintrusive way for rendering large parts of Wikipedia machine readable. We provide a detailed plan on how to achieve this goal in a way that hardly impacts usability and performance, propose an implementation plan, and discuss possible difficulties on Wikipedia's way to the semantic future of the World Wide Web. The possible gains of this endeavor are huge; we sketch them by considering some immediate applications that semantic technologies can provide to enhance browsing, searching, and editing Wikipedia.
This papers describes the requirements for a semantic versioning system for RDF/S ontologies. The design, implementation and usage of SemVersion are described.
Specification of a methodology for syntactic and semantic versioning (D231)
Wolf Winkler,
Max Völkel,
York Sure,
Vincent Schickel-Zuber,
Walter Binder,
Vassilis Tzouvaras,
Diego Ponte,
Chiara Zini,
Matteo Bonifacio,
Sebastian Ryszard Kruk,
Marcin Synak
Verlag:Mathematical Modelling in Physics Engineering and Cognitive Science
Today's web sites closely intertwine services with visual markup. Web page operators are unlikely to change this, as they depend on advertising revenues. wal enables average users to build web service wrappers for existing pages. By spawning many basic web services, this prepares the ground for the next wave of compound web services.