document: Ad-hoc object retrieval in the web of data Semantic Search refers to a loose set of concepts , challenges and techniques having to do with harnessing the information of the growing Web of Data ( WoD ) for Web search . Here we propose a formal model of one specific semantic search task : ad-hoc object retrieval . We show that this task provides a solid framework to study some of the semantic search problems currently tackled by commercial Web search engines . We connect this task to the traditional ad-hoc document retrieval and discuss appropriate evaluation metrics . Finally , we carry out a realistic evaluation of this task in the context of a Web search application .
doc_bio_tags: O B I O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O B I O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O B O O O O O O O O O B O O O O O O O O O O O O