| 主权项 |
1. A computer-implemented method comprising:
constructing a particular decision tree to determine a ranking score using respective features from a pair comprising a member profile representing a member in an on-line social network system and a job posting, the particular decision tree comprising a node to compare to a threshold value a value representing similarity between a feature of the member profile and a feature of the job posting; learning a ranking model, the ranking model using decision trees as a learning to rank algorithm, the decision trees comprising the particular decision tree; reading a decision tree structure of the particular decision tree; converting, using at least one processor, a path from root to a leaf in the particular decision tree into an s-expression, the format of the s-expression representing a nested if then else statement: retraining a logistic regression model utilizing the s-expression as an additional feature; using the logistic regression model, generating, a recommended jobs list for a member profile representing a member in an on-line social network system using at least one processor; and causing items from the recommended jobs list to be presented on a display device of a member represented by the member profile in an on-line social network system. |
