LPAI—A Complete AIoT Framework Based on LPWAN Applicable to Acoustic Scene Classification Scenarios

. 2022 Dec 2;22(23):9404. doi: 10.3390/s22239404

Algorithm 3 Data Screening Algorithm On the Node

1:
Given ${\bar{d}}_{s_{i}}$ from the server, i = 1 …C, where C is the number of categories.
Input:
A new target data:
2:
Obtain $f_{t_{j}}$ after feature extraction.
3:
Perform inference.
4:
if Its confidence level is greater than $γ_{n o d e s}$ then
5:
for each $f_{t_{j}}$ do
5:
Calculate the distance between each $f_{t_{j}}$ and the ${\bar{d}}_{s_{i}}$ of the corresponding pseudo-label category.
5:
Update the average distance $d_{t e m p}$ once.
6:
if Equation (9) is satisfied then
7:
Output: upload $f_{t_{j}}$ .
8:
end if
9:
end for
10:
end if