Emerging Technologies of Natural Language-Enabled Chatbots: A Review and Trend Forecast Using Intelligent Ontology Extraction and Patent Analytics

Table 6

Keywords for each topic.

Domain	Topic	Keywords
NLP	Linguistics	Personality, AI, discourse, syntactic
	Conversation	NLU, semantic, NLG, intent
	Speech recognition	Audio signal, processor, channel
	Knowledge	Entity, ontology, semantic, cognitive identification
MODEL	Features	semantic, vector representation, image recognition
	Voice device	Storage, server, control module
	Question answer	Pair, retrieval, RNN
	Classification	Segmentation, convolutional, encoder
	Graph	Entity, ontology, intent
	Automatic service	Call, recommendation
System	User interface	Portable, network, wireless, digital
	Dialogue management	NLG, processor, ML
	Infrastructure	Channel, cloud, communication