中文摘要：

提出一种即时的、基于用户交互的问答系统设计方案．该系统依照客户服务器（C／S）结构进行搭建，通过互助模式解答人们提出的问题，利用问题推荐机制将松散的用户群组织成为高效的协作网．推荐问题时，通过用户建模技术准确评估用户对各个知识领域的信誉度、权威性以及工作能力以保证将问题推荐至合适用户；采用调度技术依照重要性依次推荐问题，并在保证拥有较高回答率的前提下，将所有问题均匀的推荐至不同用户处进行回答．实验展示了依照该方案所实现的原型系统的服务器端和客户端的运行情况并展现了推荐的精确度．

英文摘要：

We present a design and implementation of an instant user-interactive question answering system using the Client/Server （C/S） architecture. In our system, all the questions are asked and answered manually by human users, who actually form an efficient collaborative network. A user modeling method is used to evaluate the interests, authorities, and capacities in each area for each user so that we can recommend a given question to suitable users to answer. In order to obtain timely answers to most questions, a load balancing technique is used to balance the work of each user and ensure the important/urgent questions to be recommended and there-fore answered earlier. Experiments show the proposed mechanism＇ s accuracy in question recommendation.