Aspect-Level Sentiment Analysis Based on Position Features Using Multilevel Interactive Bidirectional GRU and Attention Mechanism

Table 1

Component description of the proposed model.

Notation	Description
	The th word in a context
	The th word in a target term
	Relative distance from the th word to a target term in a sentence
	Concatenation of the th context and position embedding
	Start position of a target term
	End position of a target term
	Embedding of the th context in a sentence
	Embedding of the th target term in a sentence
	First hidden layer vector formed from
	First hidden layer vector formed from
	Second hidden layer vector formed from
	Second hidden layer vector formed from