| | Input: subgraph stream . |
| | Output: interest labels of all user at the time of . |
| (1) | for to do |
| (2) | for to do |
| (3) | ; |
| (4) | obtain subgraph using the followees of each user in ; |
| (5) | put users in into one of the user types called using and TALE algorithm; |
| (6) | if the user interest label has not been extracted at the time of then |
| (7) | crawl the nearly posts posted by all users in until the time of , named ; |
| (8) | topic modeling on to get candidate user interest label; |
| (9) | use formulas (9), (10), and (12) to update the interest label of users in according to the sequence of , , and ; |
| (10) | else |
| (11) | crawl the nearly posts posted by all users in between the time of and , named and topic modeling on ; |
| (12) | user interest label at the time of is used as candidate user interest label; |
| (13) | end |
| (14) | while new interest labels extracted by user are detected do |
| (15) | update interest labels of ; |
| (16) | use UNITE, formulas (9), (10), and (12) to update the interest label of users who follow according to ; |
| (17) | end |
| (18) | while new interest labels extracted by user are detected do |
| (19) | update interest labels of ; |
| (20) | use UNITE, formulas (9), (10), and (12) to update interest label of users who follow according to ; |
| (21) | end |
| (22) | while new interest labels extracted by user are detected do |
| (23) | update interest labels of ; |
| (24) | use UNITE, formulas (9), (10), and (12) to update interest label of users who follow according to ; |
| (25) | end |
| (26) | end |
| (27) | end |
| (28) | return interest labels of all users and each interest of is formalized as . |
