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IEEE/ICACT20260040 Slide.08        [Big Slide]	Oral Presentation
	First stage (POI preference features) Collected POI information and user check-in records to create a POI relationship graph. Then, use DeepWalk method to create POI graph embedding Concatenate with side information to complete the embedding Context embedding Temporal embedding Spatial embedding Second stage (Recommendation model) Stacking multiple Self-Attention Block Self-Attention mechanism Two Feed-Forward Network Residual Connection with Layer Normalization Prediction Layer to predict Next POI

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