Hierarchical Space Model for Multimedia Data Retrieval

Abstract

Database management systems for multimedia data retrieval are becoming more important, as digital videos and cameras increase in popularity.An important feature of multimedia data retrieval is that users rarely specify their first queries exactly, and must clarify what they want by browsing the query results, refining their query by trial and error. It is therefore desirable for a multimedia database management system (DBMS) to develop a rough query result quickly and refine it over time. This paper describes a hierarchical space model for the multimedia data retrieval that is similar to that of the human memory hierarchy. The aim of the hierarchical space model is to improve the similarity retrieval's performance with little loss in query result quality. We implemented the hierarchical space model on the ORDBMS LiteObject and applied it to an image retrieval application. The results of this test proved the efficiency of our hierarchical space model.