An Implicit Preference-Aware Sequential Recommendation Method Based on Knowledge Graph

Table 1

Notations.

Symbol	Description
	User set
	Item set
	Behavior set
	Number of user set
	Number of item set
	Number of behavior set
	Item that user interacted with at time
	Behavior that user imposed at time
	Knowledge graph
	Entity set in
	Relationship set in
	Head entity in knowledge graph
	Tail entity in knowledge graph
	Relationship between head and tail entity
	Transformation matrix of relationship in
	Embedding of head entity in
	Embedding of tail entity in
	Embedding of relation entity in
	Linear mapping matrices
	Parameter matrices
	Deviation parameters
	Attention weight
	Final preference representation
	Loss function related to knowledge graph
	Loss function related to model
	Final loss function
	Regularization coefficient