Research Article
An Efficient Recommendation Algorithm Based on Heterogeneous Information Network
Table 1
Related notations and explanations.
| Symbols | Explanation |
| G | Heterogeneous information network | V | Node set | | Edge set | A | Collection of categories for nodes | R | Collection of categories for relationships | U | User set | I | Project set | | Estimated user rating of the project | | Vector representation of node | | Neighbors of node u | | Final vector representation of user u and item i | d | Dimensions of heterogeneous information network representation | D | Dimension of hidden variables | | Hidden variables for user u and item i | | Parameters for combining heterogeneous information networks and matrix factorization |
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