基于协同和网络交互计算的信息获取方法研究

项目名称： 基于协同和网络交互计算的信息获取方法研究

项目编号： No.61003249

项目类型： 青年科学基金项目

立项/批准年度： 2011

项目学科： 金属学与金属工艺

项目作者： 余洁

作者单位： 上海大学

项目金额： 7万元

中文摘要： 互联网的高速发展导致用户的信息查寻过程中出现了大量无关和冗余的信息，增加了用户的认知负担，从而影响了信息查寻的效率和质量。本项目通过对用户的信息查寻过程和认知特点进行研究，提出了一套基于协同和网络交互计算的高效的个性化网络信息获取方法。首先，提出基于语义和时序的用户兴趣获取方法及基于概念-关系的兴趣表示方法，使机器能够有效地理解和准确地表达用户的兴趣。其次，利用非封闭式的网络交互模型描述个性化的信息查寻过程，构建用户访问网络信息资源时的语义上下文。再次，基于信息理论获取和表示用户在信息查寻过程中所拥有的知识及其动态变化，并以此为基础建立信息协同机制，实现用户知识的共享和互连。最后，将信息协同机制引入网络交互计算方法中，为用户提供高质量的个性化信息服务，从而有效地减轻用户的认知负担。 本项目的研究成果能够为个性化网络信息服务的实现提供有力的理论依据和技术支持。

中文关键词： 信息查寻；用户兴趣；网络交互计算；信息协同

英文摘要： Rapid development of Internet leads to massive irrelevant and redundant information in user's process of information seeking. As a result, user's cognition burden is heavier and the efficiency and qualification of information seeking are affected. Based on the research of information seeking and user's cognition features, this project present an efficient method of acquiring Web information based on collaboration and Web interactive computing. First, obtaining method of user interest based on semantics and timing sequence is presented. Description method of user interest based on concept and relation is proposed as well. This enables user interest well understood by computer. Secondly, personalized information seeking process is described by Web interactive model, thus to build the information seeking context that provides semantic background for user's visiting Web resources. Thirdly, user's knowledge and its dynamic change are captured based on information theory. In addition, information collaboration mechanism is constructed to enable the sharing of user's knowledge. Finally, information collaboration is introduced to Web interactive computing to efficiently acquire personalized information of high quality, thus to reduce user's cognition burden. Our research work can provide both theoretic foundation and technical support for the effective implementation of personalized Web information services.

英文关键词： information seeking; user interest; Web interactive computing; information collaboration