acc_tgt of target domain decreased gradually

[abinbiubiubiu]

Hello, sir, thank you for your code, I used your data set and got the same result, but when I was loading my own data set and testing the source domain -> target domain, with the increase of epoch, the training accuracy of target domain training became lower and lower, and the final accuracy was equivalent to guessing. What is the reason for this?
` epoch acc_src acc_tgt n_train - src_datasetss n_train - tgt_datasetss n_test - tgt_datasetss

0 3 0.9 0.8 272 272 71

epoch acc_src acc_tgt n_train - src_datasetss n_train - tgt_datasetss n_test - tgt_datasetss

0 4 0.9 0.573333 272 272 71

epoch acc_src acc_tgt n_train - src_datasetss n_train - tgt_datasetss n_test - tgt_datasetss

0 5 0.9 0.346667 272 272 71

epoch acc_src acc_tgt n_train - src_datasetss n_train - tgt_datasetss n_test - tgt_datasetss

0 6 0.9 0.226667 272 272 71
`