Advances, Systems and Applications
Notation | Meaning |
---|---|
 | The object detection task of camera i in time slot j |
 | The local computation size of task before offloading partition point v |
 | The offload data size of task at partition point v |
 | The delay tolerance of high-priority tasks |
\(\tau _L\) | The delay tolerance of low-priority tasks |
\(O_i^j\) | The priority of task \(S_i^j\) |
V | The collection of alternative offloading partition points |
\(X_i^j\) | The number of objects included in the detection results of task |
 | The detection result x of task \(S_i^j\) |
\(Y_{i,x}^j\) | The category of result \(Z_{i,x}^j\) |
\(R_{i,x}^j\) | The detection frame size of result \(Z_{i,x}^j\) |
\(P_{i,x,y}^j\) | The probability that result \(Z_{i,x}^j\) belongs to category y |
\(A_{i,x}^{j,y}\) | The score for result \(Z_{i,x}^j\) corresponding to a dangerous object when it is determined to belong to category y |
 | The threshold for result \(Z_{i,x}^j\) corresponding to a dangerous object when it is determined to belong to category y |
\(f_i^j\) | The proportion of the local computing resources assigned to task \(S_i^j\) |
\(r_i^j\) | The data rate of transmitting task \(S_i^j\) to edge server |
\(h_j\) | The channel gain in time slot j |
\(t_{i,l}^{j,v}\) | The time cost of locally processing task \(S_i^j\) before partition point v |
\(t_{i,up}^{j,v}\) | The time cost of offloading the feature data for task \(S_i^j\) at partition point v |
\(t_{i}^{j,v}\) | The total time cost for task \(S_i^j\) when offloading partition point v is selected |
\(u_{i,v}^{j,H}\) | The time utility for high-priority task \(S_i^j\) when offloading partition |
 | point v is selected |
\(u_{i,v}^{j,L}\) | The time utility for low-priority task \(S_i^j\) when offloading partition |
 | point v is selected |
\(u_i^j\) | The time utility for a task \(S_i^j\) of a certain priority in any time slot j |