Abstract:
The present invention relates to a multi-criteria assessment method of flood risk. The present invention assesses the flood risk by setting a section around a river and using a river basin directly influenced by the river for an assessment unit so that the present invention has an effect to expect an objective and highly reliable result. [Reference numerals] (AA) Determining evaluation factors and collecting weightings through a Delphi survey;(BB) Method for computing weightings;(CC) Developing a DB by collecting data for the collected factors and standardizing the collected factors;(DD) Setting each river basin for each section of a river;(EE) Flood risk assessment
Abstract:
A system and a method for discovering a web service based on an intelligent agent platform are provided to enable a user to use the desired service by enabling an agent to provide discovery for a UDDI(Universal Description, Discovery, and Integration) registry and an execution result of an e-business web service. An input part inputs a keyword to a UDDI client agent(10-1) included in the agent platform. A requestor requests service search to a UDDI server from the UDDI client agent by using the keyword. A receiver enables the UDDI client agent to receive a WSDL(Web Service Description Language) result from the UDDI server as a search result. A display part displays a web service execution result by enabling the UDDI client agent to analyze a received WSDL list and generate lists as many as the search result. A tool enables a user to input a personal key value and the keyword by enabling the UDDI client agent to make an API(Application Program Interface) to access the e-business service into an agent.
Abstract:
A hierarchical service discovery system and a method thereof are provided to enable a discovery agent to collect services existing in each domain by mutually interworking with heterogeneous service discovery protocols, so that a user of an agent platform can use the collected services. An LSD(Lightweight Service Discovery)(103) is designed as a lightweight service discovery protocol appropriate for an ad hoc environment having limited resources. The LSD(103) generates a discovery agent on an agent platform suited to the ad hoc environment. The discovery agent receives a service registration message sent from a UPnP(Universal Plug and Play) protocol to store the received message within the agent platform, so that another agent can use the message. A user agent of the agent platform is able to search an ad hoc network, a home network, and even an Internet range through a one-time searching function.
Abstract:
제한된 네트워크 트래픽을 사용한 디스커버리 알고리즘 및 동적인 네트워크 환경에 적응하는 애드-혹 상에서 서비스 디스커버리 시스템 및 그 방법에 관한 것으로, 유비쿼터스 서비스 제공하는 애플리케이션 계층, 캐시 관리자(Cache Manager) 및 정책 관리자(Policy Manager)를 구비한 서비스 관리 계층 및 시스템간의 통신 및 서비스 전달을 실행하는 네트워크 통신 계층을 포함하며, 상기 캐시 관리자는 주변 노드들이 제공하는 서비스 정보를 저장하고 관리하기 위한 모듈이고, 정책 관리자는 유저의 선호도, 디바이스의 컴퓨팅 능력, 네트워크의 상태에 따라 서비스 광고에 대한 주기 결정, 서비스 캐시 갱신 정책, 네트워크를 통해 들어온 패킷에 대한 처리를 실행하는 모듈인 구성을 마련한다. 상기와 같은 애드-혹 상에서 우선순위 기반 적응적 디스커버리 시스템 및 그 방법을 이용하는 것에 의해, 애드-혹 네트워크의 높은 패킷 손실에 대항하여 빠르고 신뢰성 있는 서비스를 제공할 수 있다. 애드-혹, 네트워크, 서비스, 디스커버리, QoS, 캐시 관리
Abstract:
An adaptive discovery system based on a priority on an ad-hoc network and an adaptive discovery method are provided to dynamically regulate a caching strategy, a service period, and a network packet processing process by applying the priority on a network service based on popularity of the network service. An LSD(Lightweight Service Discovery) engine includes an application layer(100), a service management layer(200), and a network communication layer(300). The application layer provides an application for providing a ubiquitous service. At the service management layer, the LSD includes two main modules having a cache manager and a policy manager. The network communication layer includes a UDP(User Datagram Protocol)-based multicast module, a TCP(Transfer Control Protocol)-based unicast module, an HTTP(Hypertext Transfer Protocol) module, and an SOAP(Simple Object Access Protocol) module. A service discovery process is performed by using an XML(eXtensible Markup Language) structure.
Abstract:
An agent-based service discovery system, a service discovery method, and a recording medium storing the same are provided to offer more diversified services to users by creating discovery agents according to each service discovery protocol and to develop a new agent at a low cost by providing an API(Application Programming Interface) using a JADE(Java Agent DEvelopment Framework) agent platform. A JADE agent platform(10) in a discovery agent system comprises a discovery agent(110), an AMS(Agent Management System) agent(120), a DF agent(130), and a user agent(150). The discovery agent(110) converts the messages transmitted from different service discovery protocols and the messages used in the JADE agent platform(10) bidirectionally so that other agents in the JADE agent platform(10) can use them. The AMS agent(120) executes a management and monitoring function for other agents, and has a control right for the life cycles of agents. The DF agent(130) serves as a yellow page that stores the service lists received to the JADE agent platform(10). The user agent(150) interrogates to the DF agent(130) and executes as proxy so that a user can use a desired service.