A unified retrieval method of multimedia documents

In this paper, we propose a retrieval method for multimedia documents. In our method, features of each medium such as text, image, and their layout information are extracted from documents. For a given query, similarity values are calculated for each media, then those values are integrated into one similarity value per document. We propose four methods for calculating the integrated similarity values. Also, we performed experiments using PDF files, and verified the effectiveness of our method.