Philosophy

Visual Word

Theoretical computer science

Set (abstract data type)

Computer science

Image retrieval

Automatic image annotation

Semantics (computer science)

k-nearest neighbors algorithm

Graph

Pattern recognition (psychology)

Image (mathematics)

Epistemology

Ontology

Artificial intelligence

Information retrieval

Programming language

International Journal on Semantic Web and Information Systems

The problems of image mining and semantic image retrieval play an important role in many areas of life. In this paper, a semantic-based image retrieval system is proposed that relies on the combination of C-Tree, which was built in our previous work, and a neighbor graph (called Graph-CTree) to improve accuracy. The k-Nearest Neighbor (k-NN) algorithm is used to classify a set of similar images that are retrieved on Graph-CTree to create a set of visual words. An ontology framework for images is created semi-automatically. SPARQL query is automatically generated from visual words and retrieve on ontology for semantics image. The experiment was performed on image datasets, such as COREL, WANG, ImageCLEF, and Stanford Dogs, with precision values of 0.888473, 0.766473, 0.839814, and 0.826416, respectively. These results are compared with related works on the same image dataset, showing the effectiveness of the methods proposed here.

A Model of Semantic-Based Image Retrieval Using C-Tree and Neighbor Graph