基于OWL-S的交通信息服務(wù)發(fā)現(xiàn)技術(shù)研究與實(shí)現(xiàn)
發(fā)布時(shí)間：2019-02-18 13:03
【摘要】：隨著信息技術(shù)的發(fā)展和服務(wù)計(jì)算在Web上的成功，交通信息服務(wù)作為智能交通系統(tǒng)的重要組成部分也深受影響。面對(duì)交通環(huán)境的復(fù)雜性，如何使交通信息服務(wù)更好的整合資源引導(dǎo)公眾出行，為公眾提供及時(shí)、準(zhǔn)確、可靠的交通服務(wù)信息，，已經(jīng)成為交通領(lǐng)域內(nèi)的研究熱點(diǎn)，受到越來(lái)越多研究者的關(guān)注。本文通過(guò)分析交通環(huán)境的復(fù)雜性，并受Web環(huán)境下服務(wù)發(fā)現(xiàn)技術(shù)的啟發(fā)，討論和設(shè)計(jì)交通環(huán)境下的服務(wù)發(fā)現(xiàn)技術(shù)。本文主要工作包括： 1、分析常用服務(wù)描述語(yǔ)言的原理與方法，通過(guò)各服務(wù)描述語(yǔ)言的對(duì)比，結(jié)合交通信息服務(wù)描述的特點(diǎn)，提出一種基于OWL-S的交通信息服務(wù)本體描述模型TISOM。該模型采用OWL-S本身包含的一套本體方法。根據(jù)Web服務(wù)與交通信息服務(wù)的差異，擴(kuò)展OWL-S語(yǔ)言，為交通信息服務(wù)提供了語(yǔ)義為主語(yǔ)法相結(jié)合的統(tǒng)一描述框架。對(duì)交通信息服務(wù)的知識(shí)本體進(jìn)行了深入研究，建立了原子服務(wù)本體模型與組合服務(wù)本體模型，并采用protégé編碼，實(shí)現(xiàn)交通信息服務(wù)的描述。 2、在TISOM模型的基礎(chǔ)上，結(jié)合Web環(huán)境下服務(wù)發(fā)現(xiàn)技術(shù)，設(shè)計(jì)了一個(gè)基于上下文推理的交通信息服務(wù)發(fā)現(xiàn)系統(tǒng)。首先根據(jù)交通信息服務(wù)通信模式，系統(tǒng)采用隨機(jī)游走模型，查詢消息將會(huì)在網(wǎng)絡(luò)節(jié)點(diǎn)中以隨機(jī)游走的方式進(jìn)行服務(wù)發(fā)現(xiàn)。然后對(duì)交通信息服務(wù)進(jìn)行基于服務(wù)主題與服務(wù)上下文約束的兩級(jí)過(guò)濾來(lái)降低匹配計(jì)算負(fù)載。最后為提高匹配準(zhǔn)確性，系統(tǒng)采用先語(yǔ)義后語(yǔ)法的順序進(jìn)行服務(wù)匹配。 3、利用OSGi在軟件體系架構(gòu)和插件式開(kāi)發(fā)的卓越特點(diǎn)，結(jié)合TISOM模型與交通信息服務(wù)發(fā)現(xiàn)系統(tǒng)，設(shè)計(jì)一個(gè)基于OSGi面向交通信息服務(wù)的原型系統(tǒng)TISPS。給出了系統(tǒng)總架構(gòu)、基于Bunddle的服務(wù)設(shè)計(jì)以及具體實(shí)例實(shí)現(xiàn)結(jié)果。 交通信息服務(wù)發(fā)現(xiàn)技術(shù)，實(shí)現(xiàn)了交通環(huán)境下信息服務(wù)的描述、發(fā)現(xiàn)、匹配等功能；具備了良好的環(huán)境適應(yīng)性和較好的可擴(kuò)展性以及發(fā)現(xiàn)的準(zhǔn)確性，對(duì)整合交通信息資源，優(yōu)化交通出行具有重要意義。
[Abstract]:With the development of information technology and the success of service computing in Web, traffic information service, as an important part of intelligent transportation system, is also greatly affected. Facing the complexity of traffic environment, how to make traffic information service better integrate resources to guide public travel and provide timely, accurate and reliable traffic service information for the public has become a research hotspot in the field of transportation. More and more researchers pay attention to it. By analyzing the complexity of traffic environment and inspired by service discovery technology in Web environment, this paper discusses and designs service discovery technology in traffic environment. The main work of this paper is as follows: 1. Analyzing the principle and method of common service description language, combining the characteristics of traffic information service description with the comparison of each service description language. A Traffic Information Service Ontology description Model TISOM. based on OWL-S The model adopts a set of ontology methods contained in OWL-S itself. According to the differences between Web services and traffic information services, the OWL-S language is extended to provide a unified description framework for traffic information services combining semantic syntax. The knowledge ontology of traffic information service is deeply studied, atomic service ontology model and composition service ontology model are established, and the description of traffic information service is realized by prot 茅 g 茅 coding. 2. Based on TISOM model and service discovery technology in Web environment, a traffic information service discovery system based on contextual reasoning is designed. Firstly, according to the traffic information service communication mode, the system adopts the random walk model, and the query message will be found by random walk in the network node. Then the traffic information service is filtered by two levels based on service topic and service context constraints to reduce the matching computing load. Finally, in order to improve the accuracy of matching, the system uses the order of semantic and syntax for service matching. 3. Taking advantage of the outstanding characteristics of OSGi in software architecture and plug-in development, combined with TISOM model and traffic information service discovery system, a prototype system based on OSGi for traffic information service, TISPS., is designed. The general architecture of the system, the service design based on Bunddle and the implementation result of a concrete example are given. The technology of traffic information service discovery realizes the description, discovery, matching and other functions of information service in traffic environment. It has good environmental adaptability, good expansibility and accuracy of discovery. It is of great significance to integrate traffic information resources and optimize traffic travel.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U495
本文編號(hào)：2425863
[Abstract]:With the development of information technology and the success of service computing in Web, traffic information service, as an important part of intelligent transportation system, is also greatly affected. Facing the complexity of traffic environment, how to make traffic information service better integrate resources to guide public travel and provide timely, accurate and reliable traffic service information for the public has become a research hotspot in the field of transportation. More and more researchers pay attention to it. By analyzing the complexity of traffic environment and inspired by service discovery technology in Web environment, this paper discusses and designs service discovery technology in traffic environment. The main work of this paper is as follows: 1. Analyzing the principle and method of common service description language, combining the characteristics of traffic information service description with the comparison of each service description language. A Traffic Information Service Ontology description Model TISOM. based on OWL-S The model adopts a set of ontology methods contained in OWL-S itself. According to the differences between Web services and traffic information services, the OWL-S language is extended to provide a unified description framework for traffic information services combining semantic syntax. The knowledge ontology of traffic information service is deeply studied, atomic service ontology model and composition service ontology model are established, and the description of traffic information service is realized by prot 茅 g 茅 coding. 2. Based on TISOM model and service discovery technology in Web environment, a traffic information service discovery system based on contextual reasoning is designed. Firstly, according to the traffic information service communication mode, the system adopts the random walk model, and the query message will be found by random walk in the network node. Then the traffic information service is filtered by two levels based on service topic and service context constraints to reduce the matching computing load. Finally, in order to improve the accuracy of matching, the system uses the order of semantic and syntax for service matching. 3. Taking advantage of the outstanding characteristics of OSGi in software architecture and plug-in development, combined with TISOM model and traffic information service discovery system, a prototype system based on OSGi for traffic information service, TISPS., is designed. The general architecture of the system, the service design based on Bunddle and the implementation result of a concrete example are given. The technology of traffic information service discovery realizes the description, discovery, matching and other functions of information service in traffic environment. It has good environmental adaptability, good expansibility and accuracy of discovery. It is of great significance to integrate traffic information resources and optimize traffic travel.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U495
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