采用出声思维、观察、访谈等方法收集5个真实信息需求语境下群体用户合作信息查寻与检索活动的案例的相关数据,通过扎根理论归纳出合作信息查寻与检索行为的17个主要概念范畴并聚焦为5个核心范畴,对5个案例从主体、情境与行为三个层面展开对比研究并描述合作信息查寻与检索过程。基于对合作相关性判断概念范畴的解析,指出影响群体用户合作相关性判断的5个主要因素,并建构合作信息查寻与检索的相关性判断模型。研究表明:合作信息查寻与检索的相关性判据与个体查寻与检索的相关性判据大致相似,群体交流是两者间的最大差异,语境对形成群体共识具有重要作用。

Five cases of collaborative information seeking and retrieval are selected under the context of real information needs, and their behaviors data are collected with the methods of thinking aloud, observation and interviews. Its 17 main conceptual categories are coded, and 5 core conceptual categories are focused with the grounded theory. Based on these categories, comparative studies of 5 cases are made on three levels of subject, context and behavior, and the process of collaborative information seeking and retrieval is presented. On the basis of detailed analysis about relevance judgment in collaborative information seeking and retrieval, five major influencing factors are proposed, and a model of relevance judgment is given. The results show that: there is no significant difference in relevance criteria between collaborative information seeking and retrieval and single user one; the main difference between them is group communication; and context takes a great role in reaching group consensus.