Research And Development Of Public Health Emergency Response System

In recent years, with the frequent occurrences of various Emergencies of Public Health (also known as Emergent Events of Public Health) such as SARS, it has been a main strategy of all the governments to handle these emergent events by building Public Health Emergency Response System. At present, research on Public Health Emergency Response System stays at the elementary stage of handling emergent events by query textual context among counter plans. Necessary references to previous cases and their respective solutions are often ignored in Public Health Emergency Response System.On the way to address the defects in current Public Health Emergency Response System, this paper proposes a solution of building Public Health Emergency Response System by combining Structural Case-based Reasoning with Ontology-based Knowledge Management.By referencing domain model of a specific application doamin, SCBR defines the description of case structure, stores previous cases formalized in XML files by a structuralized way and creates corresponding case base in this application domain. On the occurrence of an emergent event of Public Health, SCBR abstracts the description of the emergent event in the same case structure, assess the similarities between the emergent event and cases in the case base and retrieve the most similar cases to the emergent event. By learning and modifying the solutions to the most similar cases, SCBR comes up with a final solution to the emergent event and handles the processing of this event.To make SCBR more flexible and reusable, domain models and domain knowledge are separated from SCBR to help forming a Domain-independent SCBR Architecture. In a Domain-independent SCBR Architecture, Ontology technology is capable of injecting different domain models to build different Emergency Response Systems oriented at any specific application domain. The presence of architecture enables the transfer of Emergency Response System from application level to architecture level and allows a great progress towards the domain of component reuse at the same time.Although featuring characteristics such as flexibility and reusability, without the injection of domain model, the proposed Domain-independent SCBR Architecture only has limited capability when reasoning in a specific application domain. When attempting to develop the Domain-independent SCBR Architecture into practical applications, developers often fail to find necessary associations between injected knowledge items in domain models. Sometimes isolated islands of domain knowledge are witnessed. This kind of domain knowledge management can not build efficient domain models. To solve the problems in traditional domain knowledge management, Ontology-based Knowledge Management is introduced into this paper. Domain knowledge items are efficiently organized by Ontology Model. Ontology-based Knowledge Management provides SCBR with robust domain models, thus enhancing its reasoning capability in specific application domains.Through the combination of Ontology and SCBR, this paper builds a Domain-independent Architecture for Emergency Response System. On the basis of this architecture, this paper develops a Public Health Emergency Response System. After the analysis on system performance, the Public Health Emergency Response System proposed by this paper can efficiently seek solutions to emergent events. The characteristic of component reuse in this Domain-independent Architecture for Emergency Response System makes it more efficient and easier to develop SCBR-based Emergency Response Systems.