Brenoritvrezorkre
Вопросы-ответы — это QA-системы, которые базируются отнюдь, как правило, не на онтологиях.
Даже википедия знает:
"In the 1970s, knowledge bases were developed that targeted narrower domains of knowledge. The question answering systems developed to interface with these expert systems produced more repeatable and valid responses to questions within an area of knowledge. These expert systems closely resembled modern question answering systems except in their internal architecture. Expert systems rely heavily on expert-constructed and organized knowledge bases, whereas many modern question answering systems rely on statistical processing of a large, unstructured, natural language text corpus."
» modern question answering systems rely on statistical processing of a large, unstructured, natural language text corpus