本文關(guān)鍵詞： 學(xué)習(xí)資源 生態(tài)系統(tǒng) 生態(tài)服務(wù) 學(xué)習(xí)系統(tǒng)架構(gòu) e-Learning標(biāo)準(zhǔn) 網(wǎng)格技術(shù) 學(xué)習(xí)資源本體 社會計算 開源系統(tǒng)　出處：《華東師范大學(xué)》2009年博士論文　論文類型：學(xué)位論文

【摘要】： 隨著知識經(jīng)濟(jì)的發(fā)展與技術(shù)創(chuàng)新的驅(qū)動,特別是互聯(lián)網(wǎng)經(jīng)濟(jì)的迅速發(fā)展和社會(計算)網(wǎng)絡(luò)的迅猛形成,e-Learning出現(xiàn)了多方位變化,現(xiàn)代服務(wù)業(yè)中的教育第三方服務(wù)也逐漸凸顯。同時,隨著我國教育信息化的深入發(fā)展和終身化教育的逐步推進(jìn),政府、企業(yè)、教育單位和個人開發(fā)了大量教育資源,在社會計算環(huán)境下也產(chǎn)生了大量生成性資源,特別是越來越多的朝微型化方向發(fā)展的微型學(xué)習(xí)資源。資源的多樣性產(chǎn)生了資源自身的異構(gòu)、再生、無序等問題,資源服務(wù)平臺的多樣化也引發(fā)了系統(tǒng)異構(gòu)和服務(wù)質(zhì)量等問題,這些問題對資源共享都構(gòu)成較大的影響。如何解決上述問題,實現(xiàn)學(xué)習(xí)資源的有效共享,將是本篇論文研究的核心問題。 本論文首先界定了學(xué)習(xí)資源相關(guān)概念,學(xué)習(xí)資源發(fā)展演化趨向,接著論述所存在的問題以及問題解決的思路,隨后從理論基礎(chǔ)、技術(shù)架構(gòu)和技術(shù)實現(xiàn)等方面考慮構(gòu)建學(xué)習(xí)資源服務(wù)生態(tài)環(huán)境,以解決學(xué)習(xí)資源的有效共享問題。 從理論層面分析了構(gòu)建學(xué)習(xí)資源服務(wù)生態(tài)系統(tǒng)(LRSES)的理論基礎(chǔ),闡述了生態(tài)系統(tǒng)、開放系統(tǒng)、網(wǎng)絡(luò)教學(xué)傳通系統(tǒng)、協(xié)同學(xué)習(xí)等相關(guān)理論,界定了學(xué)習(xí)資源服務(wù)生態(tài)系統(tǒng)LRSES的范疇并且給出了理論模型,構(gòu)建了學(xué)習(xí)資源服務(wù)生態(tài)系統(tǒng)論域(LRSEUoD),對LRSEUoD的角色空間∑_R、內(nèi)容資源空間∑_(CR)、媒體工具空間∑_(MT)、協(xié)調(diào)空間∑_C、工作信息空間∑_W等5個子空間進(jìn)行建模和形式化描述,并分析了學(xué)習(xí)資源在時空中的交互演化過程,最后定義了學(xué)習(xí)資源生態(tài)服務(wù)質(zhì)量參數(shù)。 從技術(shù)架構(gòu)層面上研究了LRSES的技術(shù)框架,分別從系統(tǒng)架構(gòu)、標(biāo)準(zhǔn)規(guī)范、語義本體等三個方面,研究解決學(xué)習(xí)資源及其服務(wù)系統(tǒng)的異構(gòu)問題,以實現(xiàn)學(xué)習(xí)資源及其服務(wù)系統(tǒng)的互操作。在系統(tǒng)架構(gòu)方面,分析了技術(shù)系統(tǒng)架構(gòu)發(fā)展演化和學(xué)習(xí)服務(wù)系統(tǒng)架構(gòu)的情況,建立了學(xué)習(xí)資源服務(wù)的系統(tǒng)架構(gòu);在標(biāo)準(zhǔn)規(guī)范方面,研究了學(xué)習(xí)資源相關(guān)標(biāo)準(zhǔn)及互操作,拓展了數(shù)字化學(xué)習(xí)資源(內(nèi)容)標(biāo)準(zhǔn)規(guī)范,以解決社會計算環(huán)境下學(xué)習(xí)資源標(biāo)準(zhǔn)化問題;在語義本體方面,分析了教育資源領(lǐng)域語義本體,并基于e-Learning相關(guān)標(biāo)準(zhǔn)規(guī)范,定義了學(xué)習(xí)資源生態(tài)環(huán)境輕量級本體LREO(Learning Resource Ecosystem Ontology),包括學(xué)習(xí)資源本體LRO(LearningResources Ontology)、學(xué)習(xí)者本體LNO(Learner Ontology)和普適設(shè)備本體PDO(FIPA Device Ontology)。 從技術(shù)實現(xiàn)層面上分析了學(xué)習(xí)資源的自治分布和共享服務(wù)中存在的多樣性學(xué)習(xí)資源的共生與再生、學(xué)習(xí)資源的分布無序和共享服務(wù)等問題,提出了學(xué)習(xí)資源的生命周期管理方法;給出了學(xué)習(xí)資源生態(tài)演化、分布及其相關(guān)算法,并利用網(wǎng)格技術(shù)設(shè)計學(xué)習(xí)資源自治分布子系統(tǒng)(LRSDG);最后分析了學(xué)習(xí)資源共享服務(wù)的角色權(quán)限分配,給出了學(xué)習(xí)資源共享服務(wù)的4個步驟,闡述了學(xué)習(xí)資源共享中的協(xié)作交互與協(xié)同演化。 最后給出了LRSES的系統(tǒng)實現(xiàn)方法,包括體系結(jié)構(gòu)與訪問接口、學(xué)習(xí)資源生態(tài)本體(LREO)、自治管理(LRSDG)和服務(wù)共享(LRSS)等層面,闡述了學(xué)習(xí)資源服務(wù)生態(tài)系統(tǒng)開發(fā)的技術(shù)生態(tài)環(huán)境,給出了驗證和測試學(xué)習(xí)資源服務(wù)生態(tài)系統(tǒng)的體系結(jié)構(gòu)方法,并給出訪問教育資源庫和社會軟件中的資源訪問接口方法;利用Prot(?)g(?)開源本體工具建構(gòu)了學(xué)習(xí)資源生態(tài)本體(LREO),包括建立元數(shù)據(jù)命名空間,定義LREO元素和元素間關(guān)系,呈現(xiàn)LREO本體視圖,并給出了本體語義訪問方法等;利用網(wǎng)格平臺GT4實現(xiàn)學(xué)習(xí)資源自治管理環(huán)境LRSDG,包括LRSDG的系統(tǒng)監(jiān)控管理、同步數(shù)據(jù)性能測試和用戶訪問情況數(shù)據(jù)分析;用開源Sakai系統(tǒng)建立了學(xué)習(xí)資源的服務(wù)共享環(huán)境(LRSS),實現(xiàn)了學(xué)習(xí)資源服務(wù)共享環(huán)境中的用戶認(rèn)證、權(quán)限分配以及協(xié)作交互與協(xié)同演化等功能。 本文得到了全國教育科學(xué)“十五”規(guī)劃教育部重點(diǎn)課題“網(wǎng)絡(luò)教育資源整合的研究”(課題編號:DCB030252)、863子項目“基于數(shù)據(jù)網(wǎng)格的教育資源服務(wù)系統(tǒng)ERSDG實現(xiàn)”(863項目編號:2004AA1Z2330)、上海市教育科學(xué)規(guī)劃重點(diǎn)課題“多視角下的上海教育資源網(wǎng)格的構(gòu)建研究”(課題編號:A0505)、全國教育科學(xué)“十一五”規(guī)劃教育部重點(diǎn)課題“國家基礎(chǔ)教育信息資源服務(wù)體系架構(gòu)與共享機(jī)制研究”(課題編號:DCA060101)、863子課題“Linux多媒體網(wǎng)絡(luò)教學(xué)資源環(huán)境下的協(xié)同學(xué)習(xí)工具開發(fā)”(項目編號:2005AA1Z2100)、國家科技支撐計劃課題“現(xiàn)代服務(wù)業(yè)共性技術(shù)支撐體系與應(yīng)用示范工程”“學(xué)習(xí)平臺體系結(jié)構(gòu)與接口測試與應(yīng)用示范”子任務(wù)(子任務(wù)編號:2006BAH02A36-004-1)等國家科研項目的資助。
[Abstract]:With the development of knowledge economy and technological innovation, especially the rapid development of Internet economy and Society (Computing) rapid forming network, e-Learning multi dimensional change, education of third party service in the modern service industry gradually. At the same time, with the further development of China's information technology education and lifelong education gradually forward, government, enterprises, educational institutions and individuals in the development of a large number of educational resources, social computing environment also produced a large number of production resources, especially micro science more and more towards the direction of the development of micro learning resources. The resource diversity has its own resource heterogeneity, regeneration, disorder and other issues, the diversification of resources the service platform also led to the heterogeneous system and service quality problems, these problems have a greater impact on shared resources. How to solve the above problems, the implementation of learning resources Effective sharing will be the core issue of this paper.
This paper first defines the related concepts of learning resources, learning resources development and evolution trend, and then discusses the solving problems and ideas, then from the theoretical basis, technical architecture and technical implementation in terms of constructing learning resources service environment, to effectively solve the problem of learning resources sharing.
From the theoretical analysis of the construction of learning resources ecosystem services (LRSES) theory, this paper expounds the ecological system, open system, network teaching communication system, collaborative learning theory, defines the learning resource service ecosystem LRSES category and gives the theoretical model, to construct the learning resource service domain (ecological system theory LRSEUoD), on the role of LRSEUoD space _R, the content of the resource space _ sigma (CR), media space _ (MT), sigma sigma coordinate space _C, modeling and formalization of information space Sigma _W 5 sub space, and analyzes the interactive learning resources in time and space in the evolution process, finally the learning resources ecological service quality parameters are defined.
From the technical architecture based on LRSES technology framework, respectively from the system architecture, standard specification, the three aspects of ontology research, solve the problem of heterogeneous learning resources and service system, to achieve interoperability of learning resources and service system. In the aspect of system architecture, analyzes the development and evolution of technology system architecture learning service system architecture, a system architecture of learning resource service; in the standard specification, study the learning resources standards and interoperability, expand the digital learning resources (content) standard specification, in order to solve the problem of social computing resources standard learning environment; in semantic ontology, the semantic field analysis of educational resources ontology, which is based on the e-Learning standard, the definition of learning resources and ecological environment LREO (Learning Resource Ecosystem lightweight body Ontology), including learning The resource ontology LRO (LearningResources Ontology), the learner ontology LNO (Learner Ontology) and the ubiquitous device ontology PDO (FIPA Device Ontology).
From the aspects of the symbiosis and regeneration of autonomous distribution and sharing of learning resources in the diversity of learning resources technology, learning resource sharing and disorderly distribution services and other issues, put forward the method of life cycle management of learning resources; learning resources are ecological evolution and distribution algorithm, and the use of the design grid learning autonomy of resources distribution subsystem (LRSDG); the final analysis of the role distribution service learning resource sharing, 4 steps of service learning resource sharing is given, expounds the cooperative learning resources sharing and co evolution.
Finally, the realization method of LRSES system, including system structure and access interface, learning resources ecological Ontology (LREO), autonomous management (LRSDG) and shared services (LRSS) and other aspects, discusses ecological environment development learning resource service ecological system, gives the verification and testing service of learning resources ecological system structure the method, and gives access to educational resources and social resources in the software interface method; using Prot (?) g (?) open-source ontology tool construction learning resources ecological Ontology (LREO), including Jian Liyuan data namespace, the LREO element is defined and the relationship between elements, presents the LREO ontology view, and gives the ontology semantic access methods; implementation of autonomous learning resource management environment using LRSDG GT4 grid platform, including system monitoring and management of LRSDG, analysis of synchronous performance test data and user access data; the use of open source Sak AI system establishes a learning resource service sharing environment (LRSS), which implements user authentication, permission allocation, collaborative interaction and collaborative evolution in learning resource service sharing environment.
The research of network education resources integration of national science education "fifteen plan" important project of Ministry of education "(project number: DCB030252), the 863 sub project" ERSDG education resource service system based on data grid "(project number: 2004AA1Z2330 863), the study of the construction of Shanghai education resource grid under multi perspective of Shanghai City Education Science Planning Project" (project number: A0505), National Science Education "in 11th Five-Year the Ministry of education" planning "as the important project of national basic education information resources service system architecture and sharing mechanism research" (project number: DCA060101), the 863 sub project "teaching environment of Linux multimedia network collaborative learning tool development" (project number: 2005AA1Z2100), National Science and technology support program "modern service industry common technical support system and application demonstration project" and "learning platform Support of national scientific research projects such as system structure and interface test and application demonstration, sub task number: 2006BAH02A36-004-1.

【學(xué)位授予單位】：華東師范大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2009
【分類號】：G434

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