期刊名称：Bulletin of the Technical Committee on Data Engineering
出版年度：2011
卷号：34
期号：02
出版社：IEEE Computer Society
摘要：As both the volume of data and the diversity of users accessing them increase, user preferences offer a
useful means towards improving the relevance of the query results to the information needs of the specific
user posing the query. In this article, we focus on enhancing preferences with context. Context may
express conditions on situations external to the database or related to the data stored in the database.
We outline models for expressing both types of preferences. Then, given a user query and its surrounding
context, we consider the problem of selecting related preferences to personalize the query.
