發(fā)布時(shí)間：2018-01-28 06:26

  本文關(guān)鍵詞： Web服務(wù)協(xié)商 綜合協(xié)商策略 關(guān)聯(lián)議題 議題分類　出處：《東南大學(xué)學(xué)報(bào)(自然科學(xué)版)》2013年04期 　論文類型：期刊論文

【摘要】：為解決Web服務(wù)組合中精確服務(wù)匹配的失效問題,基于博弈論討價(jià)還價(jià)折扣率模型提出了一種雙邊服務(wù)協(xié)商機(jī)制.首先,引入中立協(xié)商管理者M(jìn)A作為協(xié)商中介,對(duì)協(xié)商過程進(jìn)行協(xié)同.然后,針對(duì)關(guān)聯(lián)議題和獨(dú)立議題分別進(jìn)行協(xié)商建模,并設(shè)計(jì)不同的協(xié)商協(xié)議.對(duì)于獨(dú)立議題,綜合應(yīng)用時(shí)間代價(jià)、對(duì)手提議和協(xié)商管理策略對(duì)現(xiàn)有協(xié)商策略進(jìn)行改進(jìn);對(duì)于關(guān)聯(lián)議題,引入關(guān)聯(lián)議題子集概念,關(guān)聯(lián)議題子集內(nèi)采用投標(biāo)模型進(jìn)行協(xié)商,而關(guān)聯(lián)議題子集間則采用獨(dú)立協(xié)商方式.實(shí)驗(yàn)結(jié)果表明,協(xié)商策略的改進(jìn)和協(xié)商管理者的引入加速了獨(dú)立議題的協(xié)商過程.基于議題分類的Web服務(wù)協(xié)商較好地解決了服務(wù)協(xié)商中多議題關(guān)聯(lián)的問題,與傳統(tǒng)的Web服務(wù)協(xié)商機(jī)制相比,不僅可獲得更好的社會(huì)效用,而且大幅度減少了協(xié)商時(shí)間.
[Abstract]:In order to solve the failure problem of exact service matching in Web service composition, a bilateral service negotiation mechanism is proposed based on the bargaining discount rate model of game theory. The neutral negotiation manager MA is introduced as the negotiation intermediary to coordinate the negotiation process. Then, the negotiation modeling for the related issues and the independent issues are carried out, and different negotiation protocols are designed. The existing negotiation strategy is improved by applying time cost, opponent's proposal and negotiation management strategy. For related issues, the concept of subsets of associated issues is introduced, the bidding model is used for negotiation in subsets of associated topics, and independent negotiation is adopted among subsets of associated topics. The experimental results show that. The improvement of negotiation strategy and the introduction of negotiation manager accelerate the negotiation process of independent issues. Web service negotiation based on topic classification can solve the problem of multi-topic association in service negotiation. Compared with the traditional Web service negotiation mechanism, it can not only obtain better social utility, but also greatly reduce the negotiation time.
【作者單位】： 東南大學(xué)計(jì)算機(jī)科學(xué)與工程學(xué)院;東南大學(xué)計(jì)算機(jī)網(wǎng)絡(luò)與信息集成教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(61003257,61070158,61070161,61272531,90912002) 國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973計(jì)劃)資助項(xiàng)目(2010CB328104) 國家科技重大專項(xiàng)課題資助項(xiàng)目(2009ZX03004) 教育部博士點(diǎn)基金資助項(xiàng)目(200802860031) 江蘇省自然科學(xué)基金資助項(xiàng)目(BK2008030)
【分類號(hào)】：TP393.09
【正文快照】： Internet的開放性要求Web服務(wù)能夠以豐富、靈活的交互方式向廣大用戶提供個(gè)性化、可定制的http://journal.seu.edu.cn服務(wù)[1].通過服務(wù)發(fā)現(xiàn),服務(wù)請(qǐng)求者可找到滿足其所需要功能的服務(wù)提供者集合.但不同服務(wù)所具有的QoS屬性往往差別很大,并且某些屬性本身具有動(dòng)態(tài)性,難以保證完

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