在查询术语构建阶段,针对检索系统不能体现出不同用户对同一信息需求的不同理解以及与检索任务情景相关信息的问题,对同步协作查询术语构建策略及其实现算法进行研究。通过实验验证查询术语构建策略及其实现算法的可行性,达到实现用户检索知识和经验共享的目的,从而可为同步协作检索系统的设计提供借鉴。 In the construction of query terms, this paper studies the construction strategies of synchronous collaboration query terminology and its implementation algorithms in view of the fact that the retrieval system can not reflect the different users’ different understandings of the same information needs and the information related to retrieval task scenarios. Through the experimental verification, the construction strategy of the query terms and the feasibility of its implementation algorithm are realized, and the purpose of realizing user search knowledge and experience sharing can be achieved, which can provide reference for the design of synchronous collaborative retrieval system.