%0 Journal Article %T Enhancing Domain-Specific Supervised Natural Language Intent Classification with a Top-Down Selective Ensemble Model %A Barbara McGillivray %A Gard B. Jenset %J - %D 2019 %R https://doi.org/10.3390/make1020037 %X Abstract Natural Language Understanding (NLU) systems are essential components in many industry conversational artificial intelligence applications. There are strong incentives to develop a good NLU capability in such systems, both to improve the user experience and in the case of regulated industries for compliance reasons. We report on a series of experiments comparing the effects of optimizing word embeddings versus implementing a multi-classifier ensemble approach and conclude that in our case, only the latter approach leads to significant improvements. The study provides a high-level primer for developing NLU systems in regulated domains, as well as providing a specific baseline accuracy for evaluating NLU systems for financial guidance. View Full-Tex %K natural language understanding %K dialogue systems %K multi-classifier %K word embeddings %K domain adaptation %K conversational artificial intelligence %K financial domain %K long short-term memory %U https://www.mdpi.com/2504-4990/1/2/37