Download instruction:

The dataset can be downloaded from

sftp://cloudone.isti.cnr.it/FTP/yfcc100m/HNfc6
Username:NeMISFTP
Password:FRmirGA06


The features are reported in zipped text files. Each file, except the last one, contains the information about 1 million images. The images have been randomly ordered. Thus, any subset can be considered statistically representative of the whole dataset.
Each line is related to one image and contains the following information separated by the tab character:

-image_id
-image_hash
-4096 float values

Please note that given that features are the activations of the fc6 layer of the Convolutional Neural Network before the ReLu and without any processing (e.g. L2Normalization).
You should avoid unzipping the archive. We suggest reading the text files unzipping on the fly.

Ground thruth can be downloaded from 
sftp://cloudone.isti.cnr.it/FTP/yfcc100m/GroundTruth