{
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    "train_img_dir": ["/img/coco_train2014/",
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                    "/db/itm_coco_val_1k_2_base-cased.db/",
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                    "/db/itm_coco_val_1k_4_base-cased.db/"],
    "val_img_dir": ["/img/coco_val2014/",
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    "test_txt_db": ["/db/itm_coco_test_1k_0_base-cased.db/",
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    "test_img_dir": ["/img/coco_val2014/",
                    "/img/coco_val2014/",
                    "/img/coco_val2014/",
                    "/img/coco_val2014/",
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    "checkpoint": "/pretrain/mlm_caption_bert-base.pt",
    "cut_bert": -1,
    "output_dir": "/storage/itm_tr/coco_bert_base-mlm_caption-corrected_img_bb_num-w_train_rv-step_40000",
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    "val_minibatch_size":400,
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    "learning_rate": 0.001,
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    "seed": 42,
    "fp16": true
}