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Despite significant research and development efforts, the vision of the Semantic Web yielding to a Web of Data has not yet become reality. Even though initiatives such as Linking Open Data gained traction recently, the Web of Data is still clearly outpaced by the growth of the traditional, document-based Web. Instead of releasing data in the form of RDF, many publishers choose to publish their data...
Anotações em código-fonte têm assumido um papel cada vez mais relevante na produção de programas. Anotações estruturadas - aquelas que seguem esquemas de construção - fornecem semântica extra ao código e são aptas para uso na automatização de tarefas complementares ao seu desenvolvimento. Iniciativas recentes têm associado estas anotações a ontologias, ampliando sua expressão e interoperabilidade...
In order to make best use of massive oilfield XML data which is heterogeneous and distributed, we propose a semantic integration method of building XML Knowledge Base named XML-WeKB. In this method, XML schema is first mapped to a local-Ontology by series of extraction rules, and then XML data is converted into local-Ontology instances to fill XML-WeKB by executing a recursive transformation algorithm...
The existing data integration systems which are not suitable for the changeable needs of enterprises become more and more complex and unfeasible with the increasing heterogeneous data sources. To solve the problem, this paper proposes a non-instance ontology-based approach of concepts mapping and an approach of plug-in management. Ontology mapping is used to provide basic data to integrate the semantic...
In this paper we propose a new form architecture called eXtensible Dynamic Form (XDF) to facilitate data collection process of supplier discovery. This architecture provides users with flexibility to dynamically extend the base form structure with new form components, or to reuse the existing form components by intelligent search. With XDF, the supplier's capability information can be entered in the...
In this paper, we provide a comprehensive survey of the methods available to (semi-)automatically generate an Ontology model from a data model. Although there are several different instantiations of database management systems in use today, the transformation methods to date have generally focused on relational data models as the prime source of the information; we therefore concentrated on this when...
OWL originated in the W3C, is known as a Web ontology language for descriptions. Since February 10, 2004, OWL has been officially recommended as a W3C standard. OWL has the describe logic as the logic-based theory, in the syntax and semantics are integrated to the construction thinking of describe logic. OWL reasoning tools are currently the OWL ontology knowledge base into description logic reasoning.
Semantic grid, the cross field of semantic web and grid computing, has received significant attention recently. Our workgroup develops a resource management semantic grid -- RM-Grid to enhance information process accuracy and efficiency in semantic heterogeneity environment. This paper describes the architecture of RM-grid, mainly introduces the data translation service of RM-Grid. It puts forward...
Digital educational resources construction is enormous and growing at a staggering rate, the information lacks a uniform semantic description. So that users it difficult to find, organize, access and maintain the information required increasingly. we can realize optimal allocation of digital educational resources, balance the distribution of resources, narrow the resources gap between the rich and...
Many applications require storing XML data, which can be achieved by using a relational database (RDB). In order to accomplish that, we need a set of transformation rules that maps the XML structure to a collection of relations. However, XML files from the same application domain might have different structures, making the mapping process to a unique relational schema more difficult. To overcome this,...
The problem of large-scale, decentralized data sharing, which is relevant for a wide range of applications, is still a source of major theoretical and practical challenges in spite of many years of sustained research. The Semantic-Model approach to information integration was introduced recently. In this approach, the mediator schema is a simple ontological view of the sources' data, consisting of...
For at least a decade, WWW, large enterprises, and desktop users suffer from an inability to efficiently access and manage their data. To help automate different aspects of this challenging problem many solutions have been proposed in both academic and industrial research. One of them - UFO Repository, introduced in [5] is currently gaining momentum by advocating an object-oriented approach to help...
Massive Learning resources are heterogeneous disorder, and the computers cannot handle message lack of semantic, the introduction of the Semantic Web Architecture for human cognition knowledge of the law related areas of knowledge points. This paper presents a knowledge-point of teaching resources as the core organization's overall architecture, the semantic Web technology described by the semantic...
Aiming at algorithm limitations and lower recall rate of query decomposition, a query decomposition algorithm based on FWR expressions of ontology XQuery is proposed. In this algorithm, after writed query language the global by XQuery, in the three stages of the FWR expression global ontology-based query is decomposed into sub-queries for the local body. The Algorithm reduces the complexity of the...
To explore knowledge integration of Ontology-based Intelligence Study with the support of Ontology technology, and propose a model of Ontology-based knowledge integration, taking field-oriented intelligence study and task-oriented intelligence study for example, and try to make out an application plan of model of Ontology-based knowledge integration.
The IEC 61499 standard is targeting the enhancement of the IEC 61131–3 PLC standard in distributed automation systems improving the reconfigurability, portability and reusability of automation software. This paper proposes a foundation to a novel approach for design the system based on IEC 61499 function blocks. This design process is including design recovery, configuration, semantic analysis and...
In order to lighten the burden of worknet and shorten the respond time of ISMBDI mode, a cache mechanism for ISMBDI mode is built, and correspondingly a new cache replacement policy LRAFU is presented. This policy well integrates the traditional cache replacement policies LRU (Least Recently Used) and LFU (Least Frequently Used), not only avoids the problem of cache pollution, fits the character of...
With the rise of hyperlinked networks and the broad spectrum of information that is accessible over the Web, a lot of data sources become available. XML standard receives large acceptance, the comparison of the Web to a “database” is closer to reality than ever before. One of the long-standing and challenging problems for many applications, is schema matching. While there are many schema-matching...
Automated matching of service descriptions is the key to service discovery and composition. In this paper, we propose an approach for web services discovery and composition. The approach relies on (1) SAWSDL, a simple and generic annotation language, (2) an XML representation of a web service that carries both syntactic (e.g., WSDL) and semantic (e.g., SAWSDL) information, and (3) the reuse of available...
Web services technology is mainly designed for the interoperability among machines, whose inputs and outputs are defined in the form of XML schema without presentation information, hence it is unable to present the execution results of Web services to human beings directly and friendly. To address this problem, an ontology-based method and a rendering engine are proposed in this paper. In the method,...
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