Sciweavers

Share
AIIA
2007
Springer

Instance-Based Query Answering with Semantic Knowledge Bases

9 years 6 months ago
Instance-Based Query Answering with Semantic Knowledge Bases
A procedure founded in instance-based learning is presented, for performing a form of analogical reasoning on knowledge bases expressed in a wide range of ontology languages. The procedure exploits a novel semi-distance measure for individuals, that is based on their semantics w.r.t. a number of dimensions corresponding to a committee of features represented by concept descriptions. The procedure can answer by analogy to class’membership queries on the grounds of the classification of a number of training instances (the nearest ones w.r.t. the semi-distance measure). Particularly, it may also predict assertions that are not logically entailed by the knowledge base. In the experimentation, where we compare the procedure to a logical reasoner, we show that it can be quite accurate and augment the scope of its applicability, outperforming previous prototypes that adopted other semantic measures.
Nicola Fanizzi, Claudia d'Amato, Floriana Esposito
Added 07 Jun 2010
Updated 07 Jun 2010
Type Conference
Year 2007
Where AIIA
Authors Nicola Fanizzi, Claudia d'Amato, Floriana Esposito
Comments (0)
books