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In the human, society, interconnection environment and systems methodology perspectives, this paper answers the following questions: What are the Knowledge Grid and its distinguished features? What are its methodology and major research issues? These answers are important to the development of this promising area.
We discuss a general architectural approach to knowledge and information management and delivery in distributed systems. Our approach is based on the recognition that time-stamped, streaming information message units form the core of seemingly disparate systems that range from online sensors and scientific instruments to Web information retrieval. Globally distributable Grid services manage these...
A knowledge flow is invisible but it plays an important role in ordering knowledge exchange in teamwork. It can help achieve effective team knowledge management by modeling, optimizing, monitoring and controlling the operation of knowledge flow processes. This paper proposes the notion of knowledge energy as the driving cause of forming an autonomous knowledge flow network, and explores the behind...
Efficient scheduling has emerged as a fundamental problem in grid computing systems. Since finding an optimal scheduling on the system to minimize the program completion time is a well-known NP-complete problem in general, researchers have resorted to devising efficient heuristics. In this paper, we present a dynamic scheduling heuristic which is appropriate for the grid computing systems, with the...
Efficient task scheduling is critical to achieving high performance on grid computing environment. A heuristic task scheduling algorithm satisfied resources load balancing on grid environment is presented in this paper. The algorithm schedules tasks by employing mean load based on task predictive execution time as heuristic information to obtain an initial scheduling strategy. Then an optimal scheduling...
To achieve interconnection environment, the proposed approach consists of MMFI for ontology and reference ontology for normalizing semantic space, ontologyinduced schema mapping for transition from semantic interconnection to schema mapping, MMFI (ISO 19763) for normalizing interconnection environment, and a semantic matcher with schema mapping broker for dynamically clustering services or resources...
This paper1 addresses the issue of workflow knowledge on Grid and P2P, and proposes a layered workflow architecture and its related workflow models that are used for not only distributing workflows’ knowledge onto Grid/P2P resources but also scheduling the enactment of workflows deployed on Grid/P2P computing environment. Especially, the most critical rationale of this paper is on the fact...
Many question answering systems are now focusing on the research of question-based answer mining from the Web information or snippets returned by the search engine. However, their main goal is only to get the related answers instead of the correct answers because answers are inconsistent. An answer fusion model and method is proposed, which makes semantic analysis of the various answers to the same...
There are many common characteristics between Web Service (WS) and Peer-to-Peer (P2P) computing environment. Therefore, carrying out web service over P2P network can utilize the advantages of P2P to achieve the services integration and resource selfgovernment. The service discovery is a key step during this convergence. In this paper, a semantic-overlay based approach is presented for web service...
Many large semantic systems can be described as Semantic Grids of Semantic Grids with large amounts of relatively static services and associated semantic information combined with multiple dynamic regions (sessions or subgrids) where the semantic information is changing rapidly. We design a hybrid Information Service supporting both the scalability of large amounts of relatively slowly varying data...
Currently most centralized RDF storage and query architectures have problems in query performance and scalability. In this paper we present a distributed RDF query architecture to address these problems, which is built on Chord and Sesame. In our architecture, we construct semantic topology with distributed interestindex to route query and take advantage of semantic similarity between query and peer...
A toolkit called DartGrid 1 using technologies from either semantic web or grid is introduced. It is build upon Globus Toolkit and uses RDF-based ontology to integrate heterogeneous relational databases. Technically, database resources are exposed as grid services and organized as an ontology-based virtual organization. By uniformly defined domain semantics, data resources are semantically registered...
Batch service is a kind of specific stochastic service system which has broad application background. However, in practical, batch service exists commonly as one or several steps in a production or business process. Workflow management system (WfMS) is a powerful tool to support business processes modeling and execution. It has gained extensive attention from both industry and academic domain. But,...
The World Wide Web is becoming the most important source for surveying the state of research areas all over the world. DynamicView is such a Semantic Web portal implemented for researchers to query distribution of research areas in computer science. From millions of pages in free text available on thousands of web sites, finding the distribution of research areas is a hard task. To resolve this problem,...
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