map

hellow
I have trained market datasets with the market and duke pretrained model. And test with python, but get a bad result mAP 0.16. I think although the pretrained is important, the result is too bad. did some important points need to attention?
By the way , I use the imagename's persion id like '-1_c1s1_001376_05.jpg', using '-1'. and misunderstand that the code's 'market_gallery.txt' , it contain like 'market/bounding_box_test/-1_c1s1_000401_03.jpg 0',but i could not understand the meaning of '0', it seems all the .jpg follows '0'.