Using Semantic Representations to Facilitate the Domain-Knowledge Portability of a Natural Language Interface to Databases

Syntax and Semantics Question Analysis Using User Modelling and Relevance Feedback

“…Since the advent of ontology, recent studies in QA systems have utilized ontology in the development of QA systems. This can be seen in the works of [3], [5], [7], [10], [11], [18] and much more. During the early time, many QA systems used ontology as a mechanism to support query expansion [18].…”

“…The emergence of ontology research activities, especially in the Question Answering (QA) systems are progressing towards solving research issues in handling complex questions such as comparative, evaluation, superlative and negation question types [7], [11], [12], [18]. This is not an easy task to automatically capture the semantics lies in a complex question structure.…”

“…The semantic meaning of this question structure has to be thoroughly analyzed, semantically interpreted and converted into an executable query so that the potential answers can be obtained from the corpus or knowledge base [12]. In [7], the FREyA (Feedback. Refinement and Extended Vocabulary Aggregation) QA system relies on the user feedback to disambiguate any ambiguity exists in the complex question.…”

“…Currently, the major focus in QA research is advancing towards complex question handlers such as in negation questions [11] or comparative and evaluative questions [7], [12]. An example of negation question is "Are there any AutoCAD jobs open?…”

“…Instead of failing to provide an answer, an ontology may assist in finding the value or semantic meaning of the term or relation that are looked for. Many researches have shown that ontology promotes the semantic capability of a QA system [7], [10], [18].…”