A Generalized Vector Space Model for Ontology-Based Information Retrieval
Abstract
Named entities (NE) are objects that are referred to by names such as people, organizations and locations. Named entities and keywords are important to the meaning of a document. We propose a generalized vector space model that combines named entities and keywords. In the model, we take into account different ontological features of named entities, namely, aliases, classes and identifiers. Moreover, we use entity classes to represent the latent information of interrogative words in Wh-queries, which are ignored in traditional keyword-based searching. We have implemented and tested the proposed model on a TREC dataset, as presented and discussed in the paper.
Cite
@article{arxiv.1807.07779,
title = {A Generalized Vector Space Model for Ontology-Based Information Retrieval},
author = {Vuong M. Ngo and Tru H. Cao},
journal= {arXiv preprint arXiv:1807.07779},
year = {2018}
}
Comments
5 pages, in Vietnamese. information retrieval, vector space model, ontology, named entity, keyword. Accepted by Vietnamese Journal on Information Technologies and Communications