CAJ | 학술논문

全局最优和局部最优是服务选择的两种策略.现有的全局最优服务选择算法提供端对端约束下最优单解而非可接受的多解,既无法充分体现用户偏好和服务个性,也不利于激励服务提供者优化服务质量.首先,在引入序数效用函数作为局部服务排序的数值尺度的基础上,提出一种基于多维服务质量的局部最优服务选择模型MLOMSS(Multi-QoS based Local Optimal Model of Service Selection),为自动选取优质服务提供重要依据.然后,构造客观赋权模式、主观赋权模式和主客观赋权模式来确定各服务质量属性的权重,既体现用户偏好和服务质量的客观性,又有助于快速生成聚合服务链.最后,通过语义Web服务集成平台SEWSIP(Semantic Enable Web Service Integration Platform)证明MLOMSS模型的有效性和灵活性.
전국최우화국부최우시복무선택적량충책략.현유적전국최우복무선택산법제공단대단약속하최우단해이비가접수적다해,기무법충분체현용호편호화복무개성,야불리우격려복무제공자우화복무질량.수선,재인입서수효용함수작위국부복무배서적수치척도적기출상,제출일충기우다유복무질량적국부최우복무선택모형MLOMSS(Multi-QoS based Local Optimal Model of Service Selection),위자동선취우질복무제공중요의거.연후,구조객관부권모식、주관부권모식화주객관부권모식래학정각복무질량속성적권중,기체현용호편호화복무질량적객관성,우유조우쾌속생성취합복무련.최후,통과어의Web복무집성평태SEWSIP(Semantic Enable Web Service Integration Platform)증명MLOMSS모형적유효성화령활성.
Global optimal and local optimal are two strategies of service selection.The current global optimal algorithms of service selection provide single optimal solution instead of multi-acceptable solutions under end-to-end constraints,which cannot fully reflect users'preference and service personality,and is not conducive to encourage service provider to optimize the service quality.In this paper,an ordinary utility function is used as a numerical scale of ordering local services,and meanwhile a Multi-QoS based Local Optimal Model of Service Selection (MLOMSS)is proposed firstly to provide important grounds to choose the best service.Then,subjective weight mode,objective weight mode,and subject-objective weight mode are constructed to determine the weight of each QoS property,which not only shows users'preference and the objectivity of service quality but also helps to generate service composition chains.At last,experimental results indicate the flexibility and effectiveness of this model based on SEWSIP(Semantic Enable Web Service Integration Platform).