AUDR: An Advanced Unstructured Data Repository

Unstructured database serves as a new database targeted mainly at unstructured data management, which addresses the limitations of relational database. In this paper, an unstructured database management system named Advanced Unstructured Data Repository (AUDR) is introduced. AUDR is designed to manage massive and various types of unstructured data including text, image, audio and video. Based on a uniform data model named the Tetrahedral Data Model proposed recently, a scalable architecture is designed to provide storage, process and mining functions for massive complex unstructured data. To support content-based retrieval, intelligent retrieval and associated retrieval, it defines and implements intelligent query language of unstructured data by extending XQuery language. As a typical unstructured data, image management including storage, retrieval and clustering is described in detail. Finally the system evaluations prove that AUDR serves as a novel and efficient unstructured data management system.