In this paper, we present a P2P-based database sharing system that provides information sharing capabilities through keyword-based search techniques. Our system requires neither a global schema nor schema mappings between different databases, and our keyword-based search algorithms are robust in the presence of frequent changes in the content and membership of peers. To facilitate data integrat...

The goal of implementing a keyword extraction system is to increase as near as 100% of precision and recall. These values are affected by the amount of extracted keywords. There are two groups of errors happened i.e. false-rejected and false-accepted keywords. To improve the performance of the system, false-rejected keywords should be recovered and the false-accepted keywords should be reduced....

This paper proposes the visual keywords to represent the visual appearance, such as color and texture, of regions in images without precisely image segmentation. Based on the proposed visual keywords, a multi-modal image query and retrieval (MIQR) approach is presented to retrieve desired images from image databases by using textual annotations associated with images and/or the proposed visual ...