Research Article
Exploiting Spatial and Temporal for Point of Interest Recommendation
| Symbol | Description |
| | Set of all users | | A user and | | Set of all POIs | | A POI and | | A time interval | | Set of all days | | A day and | | Check-in that depicts user visiting location at time | | Collection of check-ins of all users visiting all locations | FC | Set of check-ins, where the location of each check-in is familiar to user | UC | Set of check-ins, where the location of each check-in is unfamiliar to user |
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