Astera - A model for Multimodal IR with a Combined Approach of Structured and Non-structured Retrieval

Astera is a model for information retrieval on multimodal collections. We leverage different information sources to improve the effectiveness of a retrieval system. Taking into account both explicit and latent semantics present in the data can fertilize the potentiality to answer complex queries, not currently answerable neither by document retrieval systems, nor by semantic web systems. We provide a hybrid approach combining IR and structured search techniques. This model is under test with a multimodal collection.