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Notations | Description |
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| A sensing task |
TP | A task publisher |
| A server |
| A user who performs a sensing task |
| A set of users |
| Number of users in the set |
| The weight of the user |
| Ground truth of the sensing object |
| Sensing data collected by the user |
| Time for to collect sensing data |
| The longitude for to collect sensing data |
| The latitude for to collect sensing data |
| The data submitted by the user which is denoted by |
| Eligibility rank for is denoted by |
| Budget constraint of a sensing task |
| Key pair of public-key encryption |
| (IND-CPA) Public-key encryption function , where is a plaintext |
| Public-key decryption function , where is a ciphertext |
| Symmetric encryption function , where is the key |
| Symmetric encryption function |
| A reward control parameter |
| The data quality of the user , and |
| Mean of data quality, and |
| Monetary reward of the user , and |
| The cost of the user performing a sensing task |
| Utility of the user |
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