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结合数字图书馆注册用户的特征信息和网络需求行为,提出一种满足用户弱信息需求的用户模型,该模型充分考虑用户的各项指标信息,以用户三级需求模型对各项指标进行量化计算,形成用户需求主题库,进而扩展满足其弱信息需求的主题词。实验表明,该模型可以在一定程度上满足用户弱信息需求。
Combined with the characteristic information and network demand behavior of registered users in digital library, this paper proposes a user model that meets the needs of users with weak information. This model fully considers the user’s various indicators and quantifies the indicators based on the user’s three-level requirements model , Forming a user database of topics, and then expand the keywords to meet their weak information needs. Experiments show that the model can meet the needs of weak user information to a certain extent.