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The recent growth of search technology has enabled people to find information more easily. However, most people need to refind information on a daily basis. Finding and refinding are different activities and require different types of support. However, current refinding support systems don't consider this point. This has caused several problems: PVR, loss of contextual information, and difference...
This paper proposes a statistical approach for estimating the evolution of Web pages in directories. The proposal is based on the capture-recapture method used in wildlife biological studies in an animal, bird or fish populations, and it is modified according to the necessary assumptions and amendments for applying the experiments in a search engine directory. During these experiments, Web pages are...
Growing attention has been paid to semantic service discovery using ontology-based service description for locating desired services. The service description can be enriched by linking it to a more refined ontology-based specification which represents particular characteristics of the service, including rating. This paper proposes an ontology-based rating model for service quality. Services are rated...
Provenance is becoming increasingly important in service-oriented distributed computing environments in which services are dynamically discovered and composed into workflows for problem solving, and disbanded later. This paper proposes a semantic Web service (SWS) based approach to creating and exploiting rich provenance data - the so-called augmented provenance. Augmented provenance enhances conventional...
Service discovery becomes a key to accelerating the evolution of Web services as the number of services is expected to increase dramatically. Foregoing work on service discovery is primarily based on the interfaces of services through the use of ontology. Ongoing work targets at service behavior, with not only individual message exchanges being captured, but also constraints between these message...
The harmonic convergence of service-oriented computing and grid results in the emergence of service grid and makes grid technology evolve into business domain. Along this evolution, the problem of transaction support becomes crucial because it is transaction that determines the adoption and success of business grid applications at most time. However, existing transaction models are not applicable...
The object of the research was to develop a deployment management framework that supported dynamic reconfiguration for home gateway services. This system uses a service oriented architecture (SOA) that contains four subsystems. These include: a management agent, a deployment management server, a process management module, and an operation portal. The architecture of this system not only improves the...
Goal Web services description languages and service discovery algorithms are two keys to deal with the service discovery problem. Based on the analysis of the current Web services description languages, the paper designs a goal Web services description ontology which can depict the functional features, the performance features and the semantic features of Web services. On the principle of enhancing...
The TV environment is not so different from any other grid computing scenario, as different TV channels can need to share multimedia information and resources to achieve some specific purposes on time. In this paper, we present a Web service specification to manage awareness in collaborative grid environments, WS-AMBLE. This specification has been designed by merging Web services with multi-agents...
Typically, search engines are low precision in response to a query, retrieving lots of useless Web pages, and missing some other important ones. In this paper, we study the problem of the hierarchical clustering of Web pages search results. In particular, we propose an architecture called WISE, a meta-search engine that automatically builds clusters of related Web pages embodying one meaning of the...
The task of researching information on a particular topic using the Web is mainly accomplished by using keyword-based search engines. Although this approach provides a good starting point, it remains a tedious task to collect additional information that puts this topic in greater context. In this paper we present ConceptWorld, an instrument to automatically discover various facets of a topic of interest...
In this paper, we propose the chi2-classifier employing the chi2-test to test the homogeneity of two random samples of term vectors for text categorization decision. First, the properties of chi2-test for text categorization are studied. One of the advantages of chi2-test is that its significance level a is the same as the miss rate that provides a foundation for theoretical performance guarantee...
In this paper, a public-key scheme is proposed to authenticate 3D mesh models. It is well known that digital signature schemes can be used for data authentication by generating a separate signature and appending it to the file. Another way is divide the original data into two parts: the content to be authenticated and the cover content. In the embedding process, the signature of the first part is...
Aimed at the uniform knowledge representation including STEP and SGML in the virtual organization, XOEM+OWL is put forward which is the semantic model faced on the uniform product knowledge representation on the multi heterogeneous product information. And then the correspondent mapping between STEP schema graph and OWL schema graph are build as Cos(sc,oc),so we can get the semantic pattern matching...
Trust in semantic Web is established by either credentials or reputation. Credential-based trust protocols assume the possession of credentials and transfer them between parties in order to establish trust. Since credentials can be private data, the act of providing private credentials implies poor privacy management even if transferred through secure (encrypted) channels. Exchanging private credentials...
In this paper we address the issue of defining and using views in information seeking tasks in the context of topic-centered learning repositories. We propose an extension of the topic maps model with views and an approach for a view-based retrieval that improves the search of relevant resources. We have implemented this extension in the educational topic maps environment TM4L. The provided support...
Web service selection has been a challenging task for automated workflow composition. This is mainly due to the heterogeneity of the Web service structure, non-standardization of registry format and complexity in capturing the semantic part of the Web service functionalities. Relation-based case retrieval (RCR) establishes the relationship between cases and the Web service invocation information....
The requirement for measuring the similarity between Web pages arises in many applications on the Web, such as Web searching engine and Web document classification. According to the unique characteristics of the Web, which are huge, rapidly growing, high dynamic, and untrustworthy, we propose a novel link-based similarity measure called PageSim. Based on the strategy of PageRank score propagation,...
Semantic Web technology is a promising first step for automated Web service discovery. Most current approaches for Web service discovery cater to semantic Web services, i.e., Web services that have associated semantic descriptions. It is unrealistic, however, to expect all new services to have associated semantic descriptions. Furthermore, the descriptions of the vast majority of already existing...
In recent years Web services has become prevalent and be looked as the best way in constructing distributed system over the Internet. Matchmaking is the key technique concerning Web services because it is the foundation of doing service discovering and composition. The matchmaking of Web services consists of the so called IOPE matchmaking. The capability information carried by IO is different from...
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