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With the wide application of web database, Web pages are continuously deepened. In order to use Deep Web resources effectively, the Deep Web data need to be integrated on a large scale, and data sources discover is the primary work of Deep Web resources integration. The Deep Web site found efficiently is the key of the Deep Web data Integration. This paper puts forward a kind of Deep Web entry automatic...
With the increasing number of e-commerce sites, how to get a quick search about the information you want from thousands of e-commerce networks is becoming an urgent problem. In this paper, we present a solution to this problem, first, domain knowledge is established according to the e-commerce field, then we build a deep web information retrieval system based on e-commerce to help users find the goods...
A knowledge map is a vital tool for better knowledge management. While application of searching the content which user concerned in the website remains in the initial stages of development, website content management is a process of knowledge management and therefore suited to knowledge maps. This paper presents a knowledge map for the intelligentized content website. And in this work it constructs...
Isomerous geological hazard data have four types: structural isomer, syntax isomer, system isomer and semantic isomer. Interoperability of semantic heterogenous data is a difficult issue due to its complexity and implication. Ontology not only describes exactly the meaning of concepts but also inner relationship of the concepts. So ontology can efficiently express common knowledge of specific domain...
The traditional knowledge push service based on non-semantic is inefficient in the hit ratio and accuracy because of the lack of semantic description and modeling to user preferences and knowledge resources. Semantic Web has unique advantages such as the robotization of the meaning interpretation, the decentralization of knowledge expression and the information identification by ontology. It provides...
This paper proposes the method to develop domain ontology's DB, based on the ontology's DB, utilizes ontology's to annotate unstructured information and translate unstructured information into structured information, so that facilitates the retrieval of unstructured information. The experiment results show that rule-based retrieval has better recall and shorter retrieval time than fact-based retrieval...
Sorts of models in current geological hazard information management system and digital disaster reduction system (DDRS) in China still lack of enough basic data support. One key problem is how to realize integration and share of complex geological hazard heterogenous spatial information. Isomerous geological hazard data have four types: structural isomer, syntax isomer, system isomer and semantic...
Most research on the problem of execution path selection and component service selection is based on DAG model and few based on structural model. The problem of execution path selection and component service selection is discussed based on structural model of composite service and graph presentation of structural model is established. Using ant colony system as optimizing tool, the problem of execution...
Major crises in recent years highlight the need for building collaborative crisis information management systems. An effective ontology is instrumental in establishing a solid common ground for such systems. By closely examining a generic emergency response workflow, this paper proposes a practical emergency response ontology. Using this ontology, we implement a prototype emergency evacuation planning...
With loosely coupled Web services, service-oriented applications and processes could be composite and dynamic and change service providers based on the criteria such as price, reliability, security, credit, or the elements' weighted utilities. A precise service search engine is critical for the loosely coupled applications to select emerging Web services regularly, automatically, across the Internet...
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