question on nuswide81 dataset

[shuaichaochao]

Thank you very much for sharing the dataset, but I found a problem that many of the images in train.txt, test.txt, databse.txt, which you have given are not labeled and they do not belong to any of the 81 categories. What's going on, are these images useless?

[vinnik-dmitry07]

Use this https://github.com/swuxyj/DeepHash-pytorch/tree/master/data