the result is different from paper

[WangGodder]

in Mirflickr25K, the map of 64 bit hash is 80 80, but i get this

[LinkTsang]

Same as you, in mirflickr25k, the mAP of 16bit until epoch 11
...test map: map(i->t): 0.644, map(t->i): 0.552
...test map: map(t->t): 0.756, map(i->i): 0.552

[WangGodder]

haha, Chinese paper.