Lassila: The Semantic Web

"... Systems composed of interacting autonomous agents offer a promising software engineering approach for developing applications in complex domains. However, this multiagent system paradigm introduces a number of new abstractions and design/development issues when compared with more traditional appr ..."

Abstract - Cited by 389 (18 self) - Add to MetaCart

Systems composed of interacting autonomous agents offer a promising software engineering approach for developing applications in complex domains. However, this multiagent system paradigm introduces a number of new abstractions and design/development issues when compared with more traditional approaches to software development. Accordingly, new analysis and design methodologies, as well as new tools, are needed to effectively engineer such systems.

Adapting Golog for composition of semantic web Services

by Sheila Mcilraith , 2002

"... Motivated by the problem of automatically composing network accessible services, such as those on the World Wide Web, this paper proposes an approach to building agent technology based on the notion of generic procedures and customizing user constraint. We argue that an augmented version of the logi ..."

Abstract - Cited by 381 (17 self) - Add to MetaCart

Motivated by the problem of automatically composing network accessible services, such as those on the World Wide Web, this paper proposes an approach to building agent technology based on the notion of generic procedures and customizing user constraint. We argue that an augmented version of the logic programming language Golog provides a natural formalism for automatically composing services on the Semantic Web. To this end, we adapt and extend the Golog language to enable programs that are generic, customizable and usable in the context of the Web. Further, we propose logical criteria for these generic procedures that define when they are knowledge self-sufficient and physically selfsufficient. To support information gathering combined with search, we propose a middle-ground Golog interpreter that operates under an assumption of reasonable persistence of certain information. These contributions are realized in our augmentation of a ConGolog interpreter that combines online execution of information-providing Web services with offline simulation of worldaltering Web services, to determine a sequence of Web Services for subsequent execution. Our implemented system is currently interacting with services on the Web. 1

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Freebase: a collaboratively created graph database for structuring human knowledge

by Kurt Bollacker, Colin Evans, Praveen Paritosh, Tim Sturge, Jamie Taylor - In SIGMOD Conference , 2008

"... Freebase is a practical, scalable tuple database used to struc-ture general human knowledge. The data in Freebase is collaboratively created, structured, and maintained. Free-base currently contains more than 125,000,000 tuples, more than 4000 types, and more than 7000 properties. Public read/write ..."

Abstract - Cited by 338 (1 self) - Add to MetaCart

Freebase is a practical, scalable tuple database used to struc-ture general human knowledge. The data in Freebase is collaboratively created, structured, and maintained. Free-base currently contains more than 125,000,000 tuples, more than 4000 types, and more than 7000 properties. Public read/write access to Freebase is allowed through an HTTP-based graph-query API using the Metaweb Query Language (MQL) as a data query and manipulation language. MQL provides an easy-to-use object-oriented interface to the tuple data in Freebase and is designed to facilitate the creation of collaborative, Web-based data-oriented applications.

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The Web Service Modeling Framework WSMF

by D. Fensel, C. Bussler, Y. Ding, B. Omelayenko - ELECTRONIC COMMERCE RESEARCH AND APPLICATIONS , 2001

"... Web Services will transform the web from a collection of information into a distributed device of computation. In order to employ their full potential, appropriate description means for web services need to be developed. For this purpose we define a fullfledged Web Service Modeling Framework (WSMF ..."

Abstract - Cited by 305 (36 self) - Add to MetaCart

Web Services will transform the web from a collection of information into a distributed device of computation. In order to employ their full potential, appropriate description means for web services need to be developed. For this purpose we define a fullfledged Web Service Modeling Framework (WSMF) that provides the appropriate conceptual model for developing and describing web services and their composition (complex web services). Spoken in a nutshell its philosophy is based on the following principle: maximal de-coupling complemented by scalable mediation service.

Web Service Modeling Ontology

by Dumitru Roman, Uwe Keller, Holger Lausen, Jos De Bruijn, Rubén Lara, Michael Stollberg, Axel Polleres, Cristina Feier, Cristoph Bussler, Dieter Fensel - STANDARD (WSMO - STANDARD), WSMO DELIVERABLE D2 VERSION 1.0 WORKING DRAFT 29 JULY 2004. AVAILABLE: HTTP://WWW.WSMO.ORG/2004/D2/V1.0/20040729

"... The potential to achieve dynamic, scalable and cost-effective marketplaces and eCommerce solutions has driven recent research efforts towards so-called Semantic Web Services, that are enriching Web services with machine-processable semantics. To this end, the Web Service Modeling Ontology (WSMO) pro ..."

Abstract - Cited by 270 (23 self) - Add to MetaCart

The potential to achieve dynamic, scalable and cost-effective marketplaces and eCommerce solutions has driven recent research efforts towards so-called Semantic Web Services, that are enriching Web services with machine-processable semantics. To this end, the Web Service Modeling Ontology (WSMO) provides the conceptual underpinning and a formal language for semantically describing all relevant aspects of Web services in order to facilitate the automatization of discovering, combining and invoking electronic services over the Web. In this paper we describe the overall structure of WSMO by its four main elements: ontologies, which provide the terminology used by other WSMO elements, Web services, which provide access to services that, in turn, provide some value in some domain, goals that represent user desires, and mediators, which deal with interoperability problems between different WSMO elements. Along with introducing the main elements of WSMO, we provide a logical language for defining formal statements in WSMO together with some motivating examples from practical use cases which shall demonstrate the benefits of Semantic Web Services.

Wikify!: linking documents to encyclopedic knowledge

by Rada Mihalcea, Andras Csomai - In CIKM ’07: Proceedings of the sixteenth ACM conference on Conference on information and knowledge management , 2007

"... This paper introduces the use of Wikipedia as a resource for automatic keyword extraction and word sense disambiguation, and shows how this online encyclopedia can be used to achieve state-of-the-art results on both these tasks. The paper also shows how the two methods can be combined into a system ..."

Abstract - Cited by 265 (6 self) - Add to MetaCart

This paper introduces the use of Wikipedia as a resource for automatic keyword extraction and word sense disambiguation, and shows how this online encyclopedia can be used to achieve state-of-the-art results on both these tasks. The paper also shows how the two methods can be combined into a system able to automatically enrich a text with links to encyclopedic knowledge. Given an input document, the system identifies the important concepts in the text and automatically links these concepts to the corresponding Wikipedia pages. Evaluations of the system show that the automatic annotations are reliable and hardly distinguishable from manual annotations. providing the users a quick way of accessing additional information. Wikipedia contributors perform these annotations by hand following a Wikipedia“manual of style,”which gives guidelines concerning the selection of important concepts in a text, as well as the assignment of links to appropriate related articles. For instance, Figure 1 shows an example of a Wikipedia page, including the definition for one of the meanings of the word “plant.”

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Jena: Implementing the Semantic Web Recommendations

by Jeremy J. Carroll, Ian Dickinson, Chris Dollin, Andy Seaborne, Kevin Wilkinson, Dave Reynolds, Dave Reynolds , 2003

"... OWL have, at their heart, the RDF graph. Jena2, a secondgeneration RDF toolkit, is similarly centered on the RDF graph. RDFS and OWL reasoning are seen as graph-to-graph transforms, producing graphs of virtual triples. Rich APIs are provided. The Model API includes support for other aspects of the R ..."

Abstract - Cited by 261 (4 self) - Add to MetaCart

OWL have, at their heart, the RDF graph. Jena2, a secondgeneration RDF toolkit, is similarly centered on the RDF graph. RDFS and OWL reasoning are seen as graph-to-graph transforms, producing graphs of virtual triples. Rich APIs are provided. The Model API includes support for other aspects of the RDF recommendations, such as containers and reification. The Ontology API includes support for RDFS and OWL, including advanced OWL Full support. Jena includes the de facto reference RDF/XML parser, and provides RDF/XML output using the full range of the rich RDF/XML grammar. N3 I/O is supported. RDF graphs can be stored in-memory or in databases. Jena's query language, RDQL, and the Web API are both offered for the next round of standardization.

The Evolution of Protégé: An Environment for Knowledge-Based Systems Development

by John H. Gennari, Mark A. Musen, Ray W. Fergerson, William E. Grosso, Monica Crubzy, Henrik Eriksson, Natalya F. Noy, Samson W. Tu - International Journal of Human-Computer Studies , 2002

"... The Protg project has come a long way since Mark Musen first built the Protg metatool for knowledge-based systems in 1987. The original tool was a small application, aimed at building knowledge-acquisition tools for a few specialized programs in medical planning. From this initial tool, the Protg s ..."

Abstract - Cited by 241 (11 self) - Add to MetaCart

The Protg project has come a long way since Mark Musen first built the Protg metatool for knowledge-based systems in 1987. The original tool was a small application, aimed at building knowledge-acquisition tools for a few specialized programs in medical planning. From this initial tool, the Protg system has evolved into a durable, extensible platform for knowledge-based systems development and research. The current version, Protg-2000, can be run on a variety of platforms, supports customized user-interface extensions, incorporates the Open Knowledge Base Connectivity (OKBC) knowledge model, interacts with standard storage formats such as relational databases, XML, and RDF, and has been used by hundreds of individuals and research groups. In this paper, we follow the evolution of the Protg project through 3 distinct re-implementations. We describe our overall methodology, our design decisions, and the lessons we have learned over the duration of the project.. We believe that our success is one of infrastructure: Protg is a flexible, well-supported, and robust development environment. Using Protg, developers and domain experts can easily build effective knowledge-based systems, and researchers can explore ideas in a variety of knowledge-based domains.

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Lassila: The Semantic Web (2001)

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