-
[show abstract]
[hide abstract]
ABSTRACT: Digital ecosystem (DE) is comprised of heterogeneous and distributed species which can play the dual role of service provider and service requester. Nowadays, DE lacks semantic search support, which means it cannot provide a reliable and trustworthy link between service providers and service requesters. To solve this issue, we design a conceptual framework of a service-ontology-based semantic service search engine. Apart from the function of service search with a novel search model, this framework also provides a quality-of-services-based service evaluation and ranking methodology. To evaluate the feasibility of our framework, we implement a prototype in the transport service domain, and compare the performance of the search model with three traditional information retrieval models. The conclusion to this evaluation and suggestions for future works are provided in the final section.
IEEE Transactions on Industrial Electronics 07/2011; · 5.16 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: Digital Ecosystems make use of Service Factories for service entities' publishing, classification, and management. However, before the emergence of Digital Ecosystems, there existed ubiquitous and heterogeneous service information in the Business Ecosystems environment. Therefore, dealing with the preexisting service information becomes a crucial issue in Digital Ecosystems. This issue has not been addressed previously in the literature. In order to resolve this issue, in this paper, we present a conceptual framework for a semantic focused crawler, with the purpose of automatically discovering, annotating, and classifying the service information with the Semantic Web technologies. The technical and evaluation details of the framework are also presented and discussed in this paper.
IEEE Transactions on Industrial Electronics 07/2011; · 5.16 Impact Factor
-
[show abstract]
[hide abstract]
ABSTRACT: The health service ecosystem is a sub domain of the service ecosystem, which is an ecological view of the health service domain. Due to the importance and the speciality of health services, service consumers have rigorous requirements regarding the efficiency of health service search engines. However, as most health service consumers do not have enough domain knowledge, their service queries are sometimes not able to denote their actual service requests. Moreover, we find that the existing health service search engines lack the ability to help the consumers to disambiguate their service queries, which may impede the efficiency of the search engines. In this paper, by means of semantic search technologies, we design a framework enabling user query disambiguation in the health service ecosystem. The framework embodies a health service ontology for domain knowledge-based user query disambiguation and an ECBR algorithm for accurate service retrieval. In order to evaluate the framework, we build a system prototype and perform a series of experiments on it. Conclusions from the evaluation are drawn in the paper.
Semantics Knowledge and Grid (SKG), 2010 Sixth International Conference on; 12/2010
-
[show abstract]
[hide abstract]
ABSTRACT: Self-healing key distribution mechanism can be utilized for distributing session keys over an unreliable network. A self-healing key distribution scheme using bilinear pairings is proposed in this paper. As far as we know, it is the first pairing-based authenticated self-healing key distribution scheme. The scheme achieves a number of excellent properties. Firstly, the users can check the integrity and correctness of the ciphertext before carrying out more complex key recovery operations thus fruitless work can be avoided. Secondly, the scheme is collusion-free for any coalition of non-authorized users. Thirdly, the private key has nothing to do with the number of revoked users and can be reused as long as it is not disclosed. Finally, the storage overhead for each user is a constant.
Consumer Communications and Networking Conference, 2009. CCNC 2009. 6th IEEE; 02/2009
-
[show abstract]
[hide abstract]
ABSTRACT: Ontology is a technology for conceptualizing specific domain knowledge, which can provide machine-readable definitions to the severed domain. Therefore, ontology can be utilized to enhance the performance of focused crawlers, by precisely defining the crawling boundary. In this paper, we will exhibit a conceptual framework of an ontology-based focused crawler serving in the domain of transport services. Here, a transport service ontology is designed for filtering non-relevant metadata, by means of logically linking the metadata with ontological concepts. In addition, we will provide the evaluation process in order to assess the power of ontology in the focused crawler. Conclusion and further works based on our current evaluation results will be made in the final section.
Semantics, Knowledge and Grid, 2008. SKG '08. Fourth International Conference on; 01/2009
-
[show abstract]
[hide abstract]
ABSTRACT: Crawlers are software which can traverse the Internet and retrieve Webpages by hyperlinks. In the face of the inundant spam Websites, traditional Web crawlers cannot function well to solve this problem. Semantic focused crawlers utilize semantic web technologies to analyze the semantics of hyperlinks and Web documents. This paper briefly reviews the recent studies on one category of semantic focused crawlers - ontology-based focused crawlers, which are a series of crawlers that utilize ontologies to link the fetched Web documents with the ontological concepts (topics). The purpose of this is to organize and categorize Web documents, or filtering irrelevant Webpages with regards to the topics. A brief comparison are made among these crawlers,from six perspectives - domain, working environment, special functions, technologies utilized, evaluation metrics and evaluation results. The conclusion with respect to this comparison is made in the final section.
Digital Information Management, 2008. ICDIM 2008. Third International Conference on; 12/2008
-
[show abstract]
[hide abstract]
ABSTRACT: Transport is a crucial component in logistics, which joints each activity in the logistics chain. The performance of logistics heavily relies on the efficiency of transport services. However, until now there has not been a clear definition about transport services. Moreover, along with the rapid rise of fuel prices, the input-output ratio of transport has been trapped in an unreasonable situation, which causes the poor performance of logistics. Therefore, the research on transport service and transport service efficiency is urgently required. In this paper, we propose to use semantic web technologies to construct a conceptual model of transport services and thus present a clear structure of the transport service hierarchy. Furthermore, we propose a semantic search engine based on this transport service ontology, in order to provide an efficient tool for users to query transport service providers. This design can also be seen as a potentially alternative approach for solving the issue of transport service inefficiency.
Service Operations and Logistics, and Informatics, 2008. IEEE/SOLI 2008. IEEE International Conference on; 11/2008
-
[show abstract]
[hide abstract]
ABSTRACT: In this paper, we propose a knowledge sharing platform based on the technology of ontology and agent, in order to solve the issues in the knowledge sharing activities within organizations. Based on the analysis of literature, the issues within current organizational knowledge sharing activities and knowledge sharing technologies are explored. By means of the literature analysis, we present a new definition of knowledge sharing in the context of organizational environment. Against these issues, our research objectives are delivered, and potential research effects are indicated. After that we choose a research approach and propose the conceptual model of our knowledge sharing platform. Finally we state the progress of our current research work, make conclusions and plan further works.
Intelligent Systems and Informatics, 2008. SISY 2008. 6th International Symposium on; 10/2008
-
[show abstract]
[hide abstract]
ABSTRACT: Digital ecosystem (DE), which is an emerging service environment beyond the service-oriented architecture (SOA), is increasingly attracting researcherspsila interest. However, current literature reveals that there is not reliable and trustworthy technical support for service transaction activities in the DE environment. In this paper, we propose a semantic service transaction system - SST, in order to provide the reliable and trustworthy services in the aspects of service search, negotiation, contract and feedback.
Industrial Informatics, 2008. INDIN 2008. 6th IEEE International Conference on; 08/2008
-
[show abstract]
[hide abstract]
ABSTRACT: Nowadays, the research of crawlers moves closer to the semantic web, along with the appearance of increasing XML/RDF/OWL files and the rapid development of ontology mark-up languages. As an emerging concept, metadata abstraction crawlers are a series of crawlers that aim to abstract metadata from normal HTML documents, based on various semantic Web technologies. In this paper, we make a general survey of the current situation of metadata abstraction crawlers. Fourteen cases in this field are chosen as typical examples, and classified in five clusters. From seven perspectives we horizontally compare and contrast the semantic Web crawlers in each cluster, and draw our conclusion in the final section.
Industrial Technology, 2008. ICIT 2008. IEEE International Conference on; 05/2008
-
[show abstract]
[hide abstract]
ABSTRACT: The research with regards to digital ecosystems emerged in the end of last century, and has developed in this century. Due to its immaturity, some fields within it are deemed to be blank. This research proposes to fill one of the blanks in the digital ecosystems research. By analyzing the issues in the current research, we propose to develop a semantic search engine, with the purpose of querying services provided by SMEs. The objective of this research is to build a reliable and trustworthy link between SMEs in the digital ecosystems environment. Relevant research methods and steps are discussed in this paper.
Digital Ecosystems and Technologies, 2008. DEST 2008. 2nd IEEE International Conference on; 03/2008
-
[show abstract]
[hide abstract]
ABSTRACT: In this paper, we make a survey over the primary literature regarding semantic search technologies. By classifying the literature into six main categories, we review their characteristics respectively. In addition, the issues within the reviewed semantic search methods and engines are analysed and concluded based on four perspectives.
Digital Ecosystems and Technologies, 2008. DEST 2008. 2nd IEEE International Conference on; 03/2008
-
[show abstract]
[hide abstract]
ABSTRACT: Todaypsilas e-businesses rely heavily on trust and reputation systems. These systems are key indicators for businesses performance. Businesses that interact with each other for their business needs form a digital business ecosystem (DBE). Members of DBE need to know the trust and reputation value of each other before the start of business interactions. The feedback mechanism is needed so that members of DBE form a unanimous opinion about trustworthiness of any specific member of the community and based their business interactions on this opinion. We present an ontological framework that will combine the feedback from all different trust and reputation information publicly available for a specific member of a domain and gives the knowledge representation on the bases of combined feedback. We call this ontological framework dasiafeedback ontologypsila.
Digital Ecosystems and Technologies, 2008. DEST 2008. 2nd IEEE International Conference on; 03/2008
-
[show abstract]
[hide abstract]
ABSTRACT: As a matter of fact, many so-called semantic search algorithms are derived from the traditional index-term-based search models. In this paper, we survey the traditional information retrieval models by categorizing them into three main classes and eleven subclasses, and analyse their benefits and issues of them.
Digital Ecosystems and Technologies, 2008. DEST 2008. 2nd IEEE International Conference on; 03/2008
-
[show abstract]
[hide abstract]
ABSTRACT: In an e-commerce business interaction, the risk assessing agent by analyzing the possible level of perceived risk beforehand can make an informed decision of its future course of interaction with an agent. The perceived risk in the context of an e-commerce business interaction is a multidimensional construct which is the combination of its subcategories. In this paper we propose a methodology by which the risk assessing agent can ascertain the numeric and linguistic level of perceived risk in an interaction by combining its different sub-categories.
Digital Ecosystems and Technologies, 2008. DEST 2008. 2nd IEEE International Conference on; 03/2008
-
[show abstract]
[hide abstract]
ABSTRACT: Quality assessment process is a very complex process. At the same time quality assessment is very vital and crucial for many business processes. In this paper we propose and explain trustworthiness measurement methodology, which is a generic method which can be used to determine the quality of service (QoS) of a given service provider and the quality of product (QoP) of a given product.
Computational Cybernetics, 2007. ICCC 2007. IEEE International Conference on; 11/2007
-
[show abstract]
[hide abstract]
ABSTRACT: In this paper we present an overview of the definitions of the terms of trust and reputation from the literature. Trust and reputation have been defined in different ways by the various researchers. As a result of these various definitions of trust and reputation there is a lot of confusion regarding what these terms actually mean. Additionally in the literature there is no work towards collecting all the definitions of trust and reputation. In this paper we discuss and present an overview of the terms of trust and reputation from the literature.
Emerging Technologies and Factory Automation, 2007. ETFA. IEEE Conference on; 10/2007
-
[show abstract]
[hide abstract]
ABSTRACT: Digital Ecosystems is a neoteric terminology and there are two major definitions about it respectively from Soluta.Net and from Digital Ecosystem and Business Intelligence Institute. In this paper, to solve the ambiguous problem in Digital Ecosystem's definitions and to help researchers better understand what it is, by means of ontology, we propose a conceptual model to completely illustrate the concepts in Digital Ecosystem. By introducing a new ontology notation system, we deliver the Digital Ecosystem Ontology, to well define the components and explain the relationships between these components. Finally we realize the ontology in Protege-owl and conclude our future works in the field.
Emerging Technologies and Factory Automation, 2007. ETFA. IEEE Conference on; 10/2007
-
[show abstract]
[hide abstract]
ABSTRACT: Biomedical knowledge of proteomics domain is represented in the protein ontology, whose instantiations, which are undergoing evolution, need a good management and maintenance system. Protein ontology instantiations signify information about proteins that is shared and has evolved to reflect development in protein ontology project and proteomics domain itself. In this paper we explore the development of a conceptual framework for protein ontology instantiations management by using the concepts of trust and reputation in biomedical domain. The developed and engineered ontology approach is trustworthy and facilitates reliable additions and updates to the protein ontology.
Emerging Technologies and Factory Automation, 2007. ETFA. IEEE Conference on; 10/2007
-
[show abstract]
[hide abstract]
ABSTRACT: In this paper we present a state of the art review of PageRank<sup>TM</sup> based approaches for trust and reputation computation. We divide the approaches that make use of PageRank<sup>TM</sup> method for trust and reputation computation, into six different classes. Each of the six classes is discussed in this paper.
Systems and Networks Communications, 2007. ICSNC 2007. Second International Conference on; 09/2007
