★ Key Points

⇒ SGNN-HN 을 제안

3. Approach

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3.1 Session Star Graph Construction

3.2 Learning embeddings with graph

  1. Initialization : satellite node 들은 embedding layer를 통해 초기화. 이때 star node는 satellite node들의 average pooling을 통해서 계산

  2. Update

  1. Highway networks