Multimedia Recommendation System for Video Game Based on High-Level Visual Semantic Features

Table 3

Notations used in this paper.

Notations	Description
VSMR	Visual semantic multimedia recommendation system
VSF	Visual semantic features
U	User set
I	Multimedia items
D	Document set
Ft,d	Frequency of each feature
∑t ∈ d	Total number of features
Yfm	The output of the FM layer
YDNN	The output of the DNN layer
E	Embedding layers
Α	Activation function
	Global bias for FM
,	Product features
UPE	User profile expansion
R	Product rating
F	Feature extracted proposal region
S	Prediction probability/score
Tf	Term frequency