9 The Spatial Pull Approach in GeoFeed Spatial Pull approach Do nothing when the user offline Once the user logs on, compute al the queries for the us
{"Image DocumentName": "The Spatial Pull Approach in GeoFeed", "Image ImageDescription": "Do nothing when the user offline. Once the user logs on, compute al the queries for the user. Advantage: No extra overhead during offline period. Disadvantages: High user response time and not efficient for the user with short offline time. Bob. location-based query. Alice. Messages. 3. Get cell. 2. Alice\u2019s. location. Spatial. Filter. Grid Index. 5. Relevant. messages. 4. Messages in the cell.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}