Effective keyword search in relational databases

With the amount of available text data in relational databases growing rapidly, the need for ordinary users to search such information is dramatically increasing. Even though the major RDBMSs have provided full-text search capabilities, they still require users to have knowledge of the database schemas and use a structured query language to search information. This search model is complicated for most ordinary users. Inspired by the big success of information retrieval (IR) style keyword search on the web, keyword search in relational databases has recently emerged as a new research topic. The differences between text databases and relational databases result in three new challenges: (1) Answers needed by users are not limited to individual tuples, but results assembled from joining tuples from multiple tables are used to form answers in the form of tuple trees. (2) A single score for each answer (i.e. a tuple tree) is needed to estimate its relevance to a given query. These scores ar...

• Type: Conference
• Year: 2006
• Where: SIGMOD
• Authors: Fang Liu, Clement T. Yu, Weiyi Meng, Abdur Chowdhury
• Keywords: Database, Effective Keyword Search, Relational Databases, SIGMOD 2006, Style Keyword Search