更新 train/hash_train.py
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from torch.nn.modules import loss
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from model.hash_model import DCMHT as DCMHT
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import os
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from tqdm import tqdm
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import torch
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import torch.nn as nn
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from torch.utils.data import DataLoader
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import scipy.io as scio
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import numpy as np
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from .base import TrainBase
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from torch.optim import Adam
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import torch.nn.functional as F
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# from model.optimization import BertAdam
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# from model.GAN import Discriminator, Generator, LabelEncoder, GANLoss
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from utils import get_args, calc_neighbor, cosine_similarity, euclidean_similarity,find_indices
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from utils.calc_utils import calc_map_k_matrix as calc_map_k
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from dataset.dataloader import dataloader
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import open_clip
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# from transformers import BertModel
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def clamp(delta, clean_imgs):
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clamp_imgs = (delta.data + clean_imgs.data).clamp(0, 1)
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clamp_delta = clamp_imgs - clean_imgs.data
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return clamp_delta
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class Trainer(TrainBase):
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def __init__(self,
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rank=0):
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args = get_args()
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super(Trainer, self).__init__(args, rank)
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self.logger.info("dataset len: {}".format(len(self.train_loader.dataset)))
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text_mean_representation, text_var_representation=self.generate_mapping()
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self.text_mean=text_mean_representation
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self.text_var=text_var_representation
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# self.run()
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def _init_model(self):
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self.logger.info("init model.")
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# self.generator=Generator()
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# linear = False
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# if self.args.hash_layer == "linear":
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# linear = True
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# self.bert=BertModel.from_pretrained("bert-base-cased", output_hidden_states=True).to(self.rank)
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# self.bert.eval()
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# self.logger.info("ViT+GPT!")
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# HashModel = DCMHT
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# if self.args.victim_model == 'JDSH':
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# from model.JDSH import TxtNet, ImgNet
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# # self.img_model = HashModel(outputDim=self.args.output_dim, clipPath=self.args.clip_path,
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# # writer=self.writer, logger=self.logger, is_train=self.args.is_train, linear=linear).to(self.rank)
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# self.img_model=ImgNet(code_len=self.args.output_dim).to(self.rank)
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# self.txt_model=TxtNet(code_len=self.args.output_dim, txt_feat_len=self.args.txt_dim).to(self.rank)
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# path=os.path.join(self.args.checkpoints,self.args.victim_model+'/'+str(self.args.output_dim)+'_'+self.args.dataset+'latest.pth')
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# checkpoint=torch.load(path)
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# self.img_model.load_state_dict(torch.load(checkpoint['ImgNet'], map_location=f"cuda:{self.rank}"))
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# self.txt_model.load_state_dict(torch.load(checkpoint['TxtNet'], map_location=f"cuda:{self.rank}"))
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# self.img_model.eval()
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# self.txt_model.eval()
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# elif self.args.victim_model == 'DJSRH':
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# self.victim_model = HashModel(outputDim=self.args.output_dim, clipPath=self.args.clip_path,
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# writer=self.writer, logger=self.logger, is_train=self.args.is_train, linear=linear).to(self.rank)
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# self.victim_model.load_state_dict(torch.load(self.args.pretrained, map_location=f"cuda:{self.rank}"))
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# elif self.args.victim_model == 'SSAH':
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# self.victim_model = HashModel(outputDim=self.args.output_dim, clipPath=self.args.clip_path,
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# writer=self.writer, logger=self.logger, is_train=self.args.is_train, linear=linear).to(self.rank)
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# self.victim_model.load_state_dict(torch.load(self.args.pretrained, map_location=f"cuda:{self.rank}"))
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# elif self.args.victim_model == 'DCHUC':
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# self.victim_model = HashModel(outputDim=self.args.output_dim, clipPath=self.args.clip_path,
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# writer=self.writer, logger=self.logger, is_train=self.args.is_train, linear=linear).to(self.rank)
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# self.victim_model.load_state_dict(torch.load(self.args.pretrained, map_location=f"cuda:{self.rank}"))
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# if self.args.pretrained != "" and os.path.exists(self.args.pretrained):
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# self.logger.info("load pretrained model.")
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# self.model.load_state_dict(torch.load(self.args.pretrained, map_location=f"cuda:{self.rank}"))
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model_clip, _, preprocess = open_clip.create_model_and_transforms('ViT-B-16', device=self.device)
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self.model= model_clip
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self.model.eval()
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self.model.float()
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self.optimizer =Adam(self.model.visual.parameters,lr=self.args.lr ,betas=[0.9,0.98] )
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# self.optimizer = BertAdam([
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# {'params': self.model.clip.parameters(), 'lr': self.args.clip_lr},
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# {'params': self.model.image_hash.parameters(), 'lr': self.args.lr},
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# {'params': self.model.text_hash.parameters(), 'lr': self.args.lr}
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# ], lr=self.args.lr, warmup=self.args.warmup_proportion, schedule='warmup_cosine',
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# b1=0.9, b2=0.98, e=1e-6, t_total=len(self.train_loader) * self.args.epochs,
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# weight_decay=self.args.weight_decay, max_grad_norm=1.0)
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# print(self.model)
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def _init_dataset(self):
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self.logger.info("init dataset.")
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self.logger.info(f"Using {self.args.dataset} dataset.")
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self.args.index_file = os.path.join("./dataset", self.args.dataset, self.args.index_file)
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self.args.caption_file = os.path.join("./dataset", self.args.dataset, self.args.caption_file)
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self.args.label_file = os.path.join("./dataset", self.args.dataset, self.args.label_file)
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train_data, query_data, retrieval_data = dataloader(captionFile=self.args.caption_file,
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indexFile=self.args.index_file,
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labelFile=self.args.label_file,
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maxWords=self.args.max_words,
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imageResolution=self.args.resolution,
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query_num=self.args.query_num,
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train_num=self.args.train_num,
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seed=self.args.seed)
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self.train_labels = train_data.get_all_label()
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self.query_labels = query_data.get_all_label()
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self.retrieval_labels = retrieval_data.get_all_label()
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# self.args.retrieval_num = len(self.retrieval_labels)
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self.logger.info(f"query shape: {self.query_labels.shape}")
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self.logger.info(f"retrieval shape: {self.retrieval_labels.shape}")
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self.train_loader = DataLoader(
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dataset=train_data,
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batch_size=self.args.batch_size,
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num_workers=self.args.num_workers,
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pin_memory=True,
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shuffle=True
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)
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self.query_loader = DataLoader(
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dataset=query_data,
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batch_size=self.args.batch_size,
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num_workers=self.args.num_workers,
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pin_memory=True,
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shuffle=True
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)
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self.retrieval_loader = DataLoader(
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dataset=retrieval_data,
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batch_size=self.args.batch_size,
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num_workers=self.args.num_workers,
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pin_memory=True,
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shuffle=True
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)
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def generate_mapping(self):
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text_train=[]
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label_train=[]
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# image_train=[]
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# self.change_state(mode="valid")
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for image, text, label, index in self.train_loader:
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# image=image.to(self.device, non_blocking=True)
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text=text.to(self.device, non_blocking=True)
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temp_text=self.model.encode_text(text)
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# temp_image=self.model.encode_image(image)
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# image_train.append(temp_image.cpu().detach().numpy())
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text_train.append(temp_text.cpu().detach().numpy())
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label_train.append(label.detach().numpy())
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text_train=np.concatenate(text_train, axis=0)
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# image_train=np.concatenate(image_train, axis=0)
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label_train=np.concatenate(label_train, axis=0)
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label_unipue=np.unique(label_train,axis=0)
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# image_centroids =np.stack([image_train[find_indices(label_train,label_unipue[i])].mean(axis=0) for i in range(len(label_unipue))], axis=0)
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text_centroids =np.stack([text_train[find_indices(label_train,label_unipue[i])].mean(axis=0) for i in range(len(label_unipue))], axis=0)
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text_var=np.stack([text_train[find_indices(label_train,label_unipue[i])].var(axis=0) for i in range(len(label_unipue))], axis=0)
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text_mean_representation = {}
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text_var_representation = {}
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for i, centroid in enumerate(label_unipue):
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text_mean_representation[centroid.tobytes()] = text_centroids[i]
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text_var_representation[centroid.tobytes()]= text_var[i]
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return text_mean_representation, text_var_representation
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def target_adv(self, image, positive, positive_mean,positive_var, negative, negative_mean, negative_var,
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epsilon=0.03125, alpha=3/255, num_iter=100):
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delta = torch.zeros_like(image,requires_grad=True)
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# clean_output = self.model.encode_image(image)
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one=torch.zeros_like(positive)
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alienation_loss = nn.TripletMarginLoss(margin=1.0, p=2, eps=1e-7)
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for i in range(num_iter):
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self.model.zero_grad()
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anchor=self.model.encode_image(image+delta)
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loss1=alienation_loss(anchor, positive, negative)
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loss=loss1 + self.args.beta * self.distribution_loss(anchor,positive_mean,positive_var,negative_mean, negative_var)
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loss.backward(retain_graph=True)
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delta.data = delta - alpha * delta.grad.detach().sign()
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delta.data =clamp(delta, image).clamp(-epsilon, epsilon)
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delta.grad.zero_()
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return delta.detach()
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def train_epoch(self):
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self.change_state(mode="valid")
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# self.logger.info(">>>>>> epochs: %d/%d"%(epoch, self.args.epochs))
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all_loss = 0
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times = 0
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save_dir = os.path.join(self.args.save_dir, "adv_PR_cruve")
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os.makedirs(save_dir, exist_ok=True)
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# query_img, query_txt = self.get_code(self.query_loader, self.args.query_num) if self.args.hash_layer == "select" else super().get_code(self.query_loader, self.args.query_num)
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retrieval_img, retrieval_txt = self.get_code(self.retrieval_loader, self.args.retrieval_num) if self.args.hash_layer == "select" else super().get_code(self.retrieval_loader, self.args.retrieval_num)
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adv_images=[]
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adv_labels=[]
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# target_texts=[]
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for image, text, label, index in self.train_loader:
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self.global_step += 1
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times += 1
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image.float()
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if self.args.dataset not in ["flickr25k", "coco", "nuswide"]:
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label = torch.ones([image.shape[0]], dtype=torch.int)
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label = label.diag()
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image = image.to(self.rank, non_blocking=True)
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text = text.to(self.rank, non_blocking=True)
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index = index.numpy()
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# image_anchor=self.image_representation(label.detach().cpu().numpy())
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negetive_mean=self.text_mean(label.detach().cpu().numpy())
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negetive_var=self.text_var(label.detach().cpu().numpy())
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# negetive_code=np.concatenate([image_anchor,text_anchor],axis=0).mean(axis=0)
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negetive_code=self.model.encode_text(text)
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target_label=label.flip(dims=[0])
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# target_image_anchor=self.image_representation(target_label.detach().cpu().numpy())
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positive_mean=self.text_mean(target_label.detach().cpu().numpy())
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positive_var=self.text_var(target_label.detach().cpu().numpy())
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# positive_code=np.concatenate([target_image_anchor,target_text_anchor],axis=0).mean(axis=0)
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positive_code=self.model.encode_text(text.flip(dims=[0]))
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# print("text shape:", text.shape)
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# index = index.numpy()
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# print(text.shape)
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delta=self.target_adv(image,positive_code,torch.from_numpy(positive_mean).to(self.rank, non_blocking=True), torch.from_numpy(positive_var).to(self.rank, non_blocking=True),
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negetive_code, torch.from_numpy(negetive_mean).to(self.rank, non_blocking=True), torch.from_numpy(negetive_var).to(self.rank, non_blocking=True))
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adv_image=delta+image
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adv_images.append(self.model.encode_image(adv_image))
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adv_labels.append(target_label)
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# target_texts.append(self.model.encode_text(text))
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adv_image=torch.cat(adv_image).to(self.device)
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adv_labels=torch.cat(adv_labels).to(self.device)
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mAPi2t = calc_map_k(adv_images, retrieval_txt, adv_labels, self.retrieval_labels, None, self.rank)
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mAPt2t = calc_map_k(adv_images, retrieval_img, adv_labels, self.retrieval_labels, None, self.rank)
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self.logger.info(f">>>>>> t-MAP(i->t): {mAPi2t}, t-MAP(t->t): {mAPt2t}")
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adv_images = adv_images.cpu().detach().numpy()
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# query_txt = query_txt.cpu().detach().numpy()
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retrieval_img = retrieval_img.cpu().detach().numpy()
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retrieval_txt = retrieval_txt.cpu().detach().numpy()
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adv_labels = adv_labels.numpy()
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retrieval_labels = self.retrieval_labels.numpy()
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result_dict = {
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'adv_img': adv_images,
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# 'q_txt': query_txt,
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'r_img': retrieval_img,
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'r_txt': retrieval_txt,
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'adv_l': adv_labels,
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'r_l': retrieval_labels
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}
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scio.savemat(os.path.join(save_dir, str(self.args.output_dim) + "-ours-" + self.args.dataset + ".mat"), result_dict)
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self.logger.info(">>>>>> save all data!")
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# self.logger.info(f">>>>>> [{epoch}/{self.args.epochs}] loss: {all_loss.data / (len(self.train_loader))}, lr: {'-'.join([str('%.9f'%itm) for itm in sorted(list(set(self.optimizer.get_lr())))])}")
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# return adv_images, texts, adv_labels
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def train(self):
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self.logger.info("Start train.")
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self.valid()
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self.train_epoch()
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# self.valid()
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# for epoch in range(self.args.epochs):
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# self.train_epoch()
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# self.valid(epoch)
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# self.save_model(epoch)
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self.logger.info(f">>>>>>> FINISHED >>>>>> Best epoch, I-T: {self.best_epoch_i}, mAP: {self.max_mapi2t}, T-I: {self.best_epoch_t}, mAP: {self.max_mapt2i}")
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def bayesian_loss(self, a: torch.Tensor, b: torch.Tensor, label_sim: torch.Tensor):
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s = torch.matmul(a, b.t())
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b_loss = -torch.mean(label_sim * s - torch.log(1 + torch.exp(s)))
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return b_loss
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def distribution_loss(self, x: torch.Tensor, positive_mean,positive_var, negative_mean, negative_var):
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"""
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"""
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norm_fun= lambda mean, var, x: 50- torch.mean(torch.exp(-(x-mean) **2 /(2*var)) /(2* torch.pi * var))
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positive_distribution=norm_fun(positive_mean,positive_var,x)
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negative_distribution=norm_fun(negative_mean,negative_var,x)
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# alienation_loss=nn.MarginRankingLoss()
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return F.margin_ranking_loss(positive_distribution,negative_distribution,1)
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def similarity_loss(self, a: torch.Tensor, b: torch.Tensor, label_sim: torch.Tensor, threshold=0.05):
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# $\vartheta$
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vartheta = self.args.vartheta
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if self.args.sim_threshold != 0:
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threshold = self.args.sim_threshold
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similarity = (1 - cosine_similarity(a, b)) if self.args.similarity_function == "cosine" else euclidean_similarity(a, b)
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positive_similarity = similarity * label_sim
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# 只要cosine为负值的全都算为计算正确了，因为优化到2确实很难。
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negative_similarity = similarity * (1 - label_sim)
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if self.args.similarity_function == "cosine":
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positive_similarity = positive_similarity.clip(threshold) - threshold
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negative_similarity = negative_similarity.clip(max=1.)
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negative_similarity = torch.tensor([1.]).expand_as(negative_similarity).to(self.rank) * (1 - label_sim) - negative_similarity
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elif self.args.similarity_function == "euclidean":
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# 有euclidean距离可知，当有一半长度的hash码不同时，其negative_similarity距离应该是长度（concat操作将outputdim翻倍），所以这里clip掉认为认定的值
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# 人为认定的最大值是一半长度的hash码不同。
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max_value = float(self.args.output_dim * 2 * vartheta) ** 0.5
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negative_similarity = negative_similarity.clip(max=max_value)
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negative_similarity = torch.tensor([max_value]).expand_as(negative_similarity).to(self.rank) * (1 - label_sim) - negative_similarity
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if self.args.loss_type == "l1":
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positive_loss = positive_similarity.mean()
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negative_loss = negative_similarity.mean()
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elif self.args.loss_type == "l2":
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positive_loss = torch.pow(positive_similarity, 2).mean()
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negative_loss = torch.pow(negative_similarity, 2).mean()
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else:
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raise ValueError("argument of loss_type is not support.")
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return similarity, positive_loss, negative_loss
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def make_hash_code(self, code: list) -> torch.Tensor:
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code = torch.stack(code)
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# print(code.shape)
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code = code.permute(1, 0, 2)
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hash_code = torch.argmax(code, dim=-1)
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hash_code[torch.where(hash_code == 0)] = -1
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hash_code = hash_code.float()
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return hash_code
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def get_code(self, data_loader, length: int):
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img_buffer = torch.empty(length, self.args.output_dim, dtype=torch.float).to(self.rank)
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text_buffer = torch.empty(length, self.args.output_dim, dtype=torch.float).to(self.rank)
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for image, text, label, index in tqdm(data_loader):
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image = image.to(self.rank, non_blocking=True)
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text = text.to(self.rank, non_blocking=True)
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index = index.numpy()
|
||||
image_hash=self.model.encode_image(image)
|
||||
# text_feat=self.bert(text)[0]
|
||||
text_hash=self.model.encode_text(text)
|
||||
img_buffer[index, :] = image_hash.data
|
||||
text_buffer[index, :] = text_hash.data
|
||||
|
||||
return img_buffer, text_buffer# img_buffer.to(self.rank), text_buffer.to(self.rank)
|
||||
|
||||
def get_adv_code(self, adv_data_list,text_list):
|
||||
|
||||
img_buffer = torch.empty(len(adv_data_list), self.args.output_dim, dtype=torch.float).to(self.rank)
|
||||
text_buffer = torch.empty(len(text_list), self.args.output_dim, dtype=torch.float).to(self.rank)
|
||||
|
||||
for i in tqdm(range(len(adv_data_list))):
|
||||
image = adv_data_list[i].to(self.rank, non_blocking=True)
|
||||
text = text_list[i].to(self.rank, non_blocking=True)
|
||||
# index = index.numpy()
|
||||
image_hash=self.img_model(image)
|
||||
text_feat=self.bert(text)[0]
|
||||
text_hash=self.txt_model(text_feat)
|
||||
# text_hash = self.make_hash_code(text_hash)
|
||||
# image_hash.to(self.rank)
|
||||
# text_hash.to(self.rank)
|
||||
img_buffer[i, :] = image_hash.data
|
||||
text_buffer[i, :] = text_hash.data
|
||||
|
||||
return img_buffer, text_buffer# img_buffer.to(self.rank), text_buffer.to(self.rank)
|
||||
|
||||
|
||||
def valid_attack(self,adv_images, texts, adv_labels):
|
||||
save_dir = os.path.join(self.args.save_dir, "adv_PR_cruve")
|
||||
os.makedirs(save_dir, exist_ok=True)
|
||||
|
||||
|
||||
|
||||
def test(self, mode_name="i2t"):
|
||||
if self.args.pretrained == "":
|
||||
raise RuntimeError("test step must load a model! please set the --pretrained argument.")
|
||||
self.change_state(mode="valid")
|
||||
save_dir = os.path.join(self.args.save_dir, "PR_cruve")
|
||||
os.makedirs(save_dir, exist_ok=True)
|
||||
query_img, query_txt = self.get_code(self.query_loader, self.args.query_num) if self.args.hash_layer == "select" else super().get_code(self.query_loader, self.args.query_num)
|
||||
retrieval_img, retrieval_txt = self.get_code(self.retrieval_loader, self.args.retrieval_num) if self.args.hash_layer == "select" else super().get_code(self.retrieval_loader, self.args.retrieval_num)
|
||||
mAPi2t = calc_map_k(query_img, retrieval_txt, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
# print("map map")
|
||||
mAPt2i = calc_map_k(query_txt, retrieval_img, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
mAPi2i = calc_map_k(query_img, retrieval_img, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
mAPt2t = calc_map_k(query_txt, retrieval_txt, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
self.max_mapt2i = max(self.max_mapt2i, mAPt2i)
|
||||
self.logger.info(f">>>>>> MAP(i->t): {mAPi2t}, MAP(t->i): {mAPt2i}, MAP(t->t): {mAPt2t}, MAP(i->i): {mAPi2i}")
|
||||
|
||||
query_img = query_img.cpu().detach().numpy()
|
||||
query_txt = query_txt.cpu().detach().numpy()
|
||||
retrieval_img = retrieval_img.cpu().detach().numpy()
|
||||
retrieval_txt = retrieval_txt.cpu().detach().numpy()
|
||||
query_labels = self.query_labels.numpy()
|
||||
retrieval_labels = self.retrieval_labels.numpy()
|
||||
|
||||
result_dict = {
|
||||
'q_img': query_img,
|
||||
'q_txt': query_txt,
|
||||
'r_img': retrieval_img,
|
||||
'r_txt': retrieval_txt,
|
||||
'q_l': query_labels,
|
||||
'r_l': retrieval_labels
|
||||
}
|
||||
scio.savemat(os.path.join(save_dir, str(self.args.output_dim) + "-ours-" + self.args.dataset + "-" + mode_name + ".mat"), result_dict)
|
||||
self.logger.info(">>>>>> save all data!")
|
||||
|
||||
|
||||
def valid(self, epoch):
|
||||
self.logger.info("Valid.")
|
||||
# self.change_state(mode="valid")
|
||||
query_img, query_txt = self.get_code(self.query_loader, self.args.query_num) if self.args.hash_layer == "select" else super().get_code(self.query_loader, self.args.query_num)
|
||||
retrieval_img, retrieval_txt = self.get_code(self.retrieval_loader, self.args.retrieval_num) if self.args.hash_layer == "select" else super().get_code(self.retrieval_loader, self.args.retrieval_num)
|
||||
# print("get all code")
|
||||
mAPi2t = calc_map_k(query_img, retrieval_txt, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
# print("map map")
|
||||
mAPt2i = calc_map_k(query_txt, retrieval_img, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
mAPi2i = calc_map_k(query_img, retrieval_img, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
mAPt2t = calc_map_k(query_txt, retrieval_txt, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
if self.max_mapi2t < mAPi2t:
|
||||
self.best_epoch_i = epoch
|
||||
self.save_mat(query_img, query_txt, retrieval_img, retrieval_txt, mode_name="i2t")
|
||||
self.max_mapi2t = max(self.max_mapi2t, mAPi2t)
|
||||
if self.max_mapt2i < mAPt2i:
|
||||
self.best_epoch_t = epoch
|
||||
self.save_mat(query_img, query_txt, retrieval_img, retrieval_txt, mode_name="t2i")
|
||||
self.max_mapt2i = max(self.max_mapt2i, mAPt2i)
|
||||
self.logger.info(f">>>>>> [{epoch}/{self.args.epochs}], MAP(i->t): {mAPi2t}, MAP(t->i): {mAPt2i}, MAP(t->t): {mAPt2t}, MAP(i->i): {mAPi2i}, \
|
||||
MAX MAP(i->t): {self.max_mapi2t}, MAX MAP(t->i): {self.max_mapt2i}")
|
||||
|
||||
def save_mat(self, query_img, query_txt, retrieval_img, retrieval_txt, mode_name="i2t"):
|
||||
|
||||
save_dir = os.path.join(self.args.save_dir, "PR_cruve")
|
||||
os.makedirs(save_dir, exist_ok=True)
|
||||
|
||||
query_img = query_img.cpu().detach().numpy()
|
||||
query_txt = query_txt.cpu().detach().numpy()
|
||||
retrieval_img = retrieval_img.cpu().detach().numpy()
|
||||
retrieval_txt = retrieval_txt.cpu().detach().numpy()
|
||||
query_labels = self.query_labels.numpy()
|
||||
retrieval_labels = self.retrieval_labels.numpy()
|
||||
|
||||
result_dict = {
|
||||
'q_img': query_img,
|
||||
'q_txt': query_txt,
|
||||
'r_img': retrieval_img,
|
||||
'r_txt': retrieval_txt,
|
||||
'q_l': query_labels,
|
||||
'r_l': retrieval_labels
|
||||
}
|
||||
scio.savemat(os.path.join(save_dir, str(self.args.output_dim) + "-ours-" + self.args.dataset + "-" + mode_name + ".mat"), result_dict)
|
||||
self.logger.info(f">>>>>> save best {mode_name} data!")
|
||||
|
||||
|
||||
from torch.nn.modules import loss
|
||||
from model.hash_model import DCMHT as DCMHT
|
||||
import os
|
||||
from tqdm import tqdm
|
||||
import torch
|
||||
import torch.nn as nn
|
||||
from torch.utils.data import DataLoader
|
||||
import scipy.io as scio
|
||||
import numpy as np
|
||||
|
||||
from .base import TrainBase
|
||||
from model.optimization import BertAdam
|
||||
# from model.GAN import Discriminator, Generator, LabelEncoder, GANLoss
|
||||
from utils import get_args, calc_neighbor, cosine_similarity, euclidean_similarity,find_indices
|
||||
from utils.calc_utils import calc_map_k_matrix as calc_map_k
|
||||
from dataset.dataloader import dataloader
|
||||
import open_clip
|
||||
# from transformers import BertModel
|
||||
|
||||
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
|
||||
|
||||
def clamp(delta, clean_imgs):
|
||||
|
||||
clamp_imgs = (delta.data + clean_imgs.data).clamp(0, 1)
|
||||
clamp_delta = clamp_imgs - clean_imgs.data
|
||||
|
||||
return clamp_delta
|
||||
|
||||
class Trainer(TrainBase):
|
||||
|
||||
def __init__(self,
|
||||
rank=0):
|
||||
args = get_args()
|
||||
super(Trainer, self).__init__(args, rank)
|
||||
self.logger.info("dataset len: {}".format(len(self.train_loader.dataset)))
|
||||
text_representation, text_representation=self.generate_mapping()
|
||||
self.image_representation=text_representation
|
||||
self.text_representation=text_representation
|
||||
self.device=rank
|
||||
# self.run()
|
||||
|
||||
def _init_model(self):
|
||||
self.logger.info("init model.")
|
||||
model_clip, _, preprocess = open_clip.create_model_and_transforms('ViT-B-16', device=device)
|
||||
self.model= model_clip
|
||||
self.model.eval()
|
||||
self.model.float()
|
||||
|
||||
def _init_dataset(self):
|
||||
self.logger.info("init dataset.")
|
||||
self.logger.info(f"Using {self.args.dataset} dataset.")
|
||||
self.args.index_file = os.path.join("./dataset", self.args.dataset, self.args.index_file)
|
||||
self.args.caption_file = os.path.join("./dataset", self.args.dataset, self.args.caption_file)
|
||||
self.args.label_file = os.path.join("./dataset", self.args.dataset, self.args.label_file)
|
||||
train_data, query_data, retrieval_data = dataloader(captionFile=self.args.caption_file,
|
||||
indexFile=self.args.index_file,
|
||||
labelFile=self.args.label_file,
|
||||
maxWords=self.args.max_words,
|
||||
imageResolution=self.args.resolution,
|
||||
query_num=self.args.query_num,
|
||||
train_num=self.args.train_num,
|
||||
seed=self.args.seed)
|
||||
self.train_labels = train_data.get_all_label()
|
||||
self.query_labels = query_data.get_all_label()
|
||||
self.retrieval_labels = retrieval_data.get_all_label()
|
||||
self.args.retrieval_num = len(self.retrieval_labels)
|
||||
self.logger.info(f"query shape: {self.query_labels.shape}")
|
||||
self.logger.info(f"retrieval shape: {self.retrieval_labels.shape}")
|
||||
self.train_loader = DataLoader(
|
||||
dataset=train_data,
|
||||
batch_size=self.args.batch_size,
|
||||
num_workers=self.args.num_workers,
|
||||
pin_memory=True,
|
||||
shuffle=True
|
||||
)
|
||||
self.query_loader = DataLoader(
|
||||
dataset=query_data,
|
||||
batch_size=self.args.batch_size,
|
||||
num_workers=self.args.num_workers,
|
||||
pin_memory=True,
|
||||
shuffle=True
|
||||
)
|
||||
self.retrieval_loader = DataLoader(
|
||||
dataset=retrieval_data,
|
||||
batch_size=self.args.batch_size,
|
||||
num_workers=self.args.num_workers,
|
||||
pin_memory=True,
|
||||
shuffle=True
|
||||
)
|
||||
|
||||
|
||||
|
||||
def generate_mapping(self):
|
||||
text_train=[]
|
||||
label_train=[]
|
||||
for image, text, label, index in self.train_loader:
|
||||
text=text.to(device, non_blocking=True)
|
||||
# print(self.model.vocab_size)
|
||||
temp_text=self.model.encode_text(text)
|
||||
text_train.append(temp_text.cpu().detach().numpy())
|
||||
label_train.append(label.detach().numpy())
|
||||
text_train=np.concatenate(text_train, axis=0)
|
||||
label_train=np.concatenate(label_train, axis=0)
|
||||
label_unipue=np.unique(label_train,axis=0)
|
||||
text_centroids =np.stack([text_train[find_indices(label_train,label_unipue[i])].mean(axis=0) for i in range(len(label_unipue))], axis=0)
|
||||
text_var=np.stack([text_train[find_indices(label_train,label_unipue[i])].var(axis=0) for i in range(len(label_unipue))], axis=0)
|
||||
|
||||
text_representation = {}
|
||||
text_var_representation = {}
|
||||
for i, centroid in enumerate(label_unipue):
|
||||
text_representation[centroid.tobytes()] = text_centroids[i]
|
||||
text_var_representation[centroid.tobytes()]= text_var[i]
|
||||
return text_representation, text_var_representation
|
||||
|
||||
def target_adv(self, image, positive, negative,
|
||||
epsilon=0.03125, alpha=3/255, num_iter=100):
|
||||
|
||||
delta = torch.zeros_like(image,requires_grad=True)
|
||||
one=torch.zeros_like(positive)
|
||||
alienation_loss = nn.TripletMarginLoss(margin=1.0, p=2, eps=1e-7)
|
||||
for i in range(num_iter):
|
||||
self.model.zero_grad()
|
||||
anchor=self.model.encode_image(image+delta)
|
||||
loss=alienation_loss(anchor, positive, negative)
|
||||
|
||||
|
||||
loss.backward(retain_graph=True)
|
||||
delta.data = delta - alpha * delta.grad.detach().sign()
|
||||
delta.data =clamp(delta, image).clamp(-epsilon, epsilon)
|
||||
delta.grad.zero_()
|
||||
|
||||
return delta.detach()
|
||||
|
||||
def train_epoch(self, epoch):
|
||||
self.change_state(mode="valid")
|
||||
self.logger.info(">>>>>> epochs: %d/%d"%(epoch, self.args.epochs))
|
||||
all_loss = 0
|
||||
times = 0
|
||||
adv_images=[]
|
||||
adv_labels=[]
|
||||
texts=[]
|
||||
for image, text, label, index in self.train_loader:
|
||||
self.global_step += 1
|
||||
times += 1
|
||||
image.float()
|
||||
if self.args.dataset not in ["flickr25k", "coco", "nuswide"]:
|
||||
label = torch.ones([image.shape[0]], dtype=torch.int)
|
||||
label = label.diag()
|
||||
image = image.to(self.rank, non_blocking=True)
|
||||
text = text.to(self.rank, non_blocking=True)
|
||||
index = index.numpy()
|
||||
image_anchor=self.image_representation(label.detach().cpu().numpy())
|
||||
text_anchor=self.text_representation(label.detach().cpu().numpy())
|
||||
negetive_code=np.concatenate([image_anchor,text_anchor],axis=0).mean(axis=0)
|
||||
target_label=label.flip(dims=[0])
|
||||
target_image_anchor=self.image_representation(target_label.detach().cpu().numpy())
|
||||
target_text_anchor=self.text_representation(target_label.detach().cpu().numpy())
|
||||
positive_code=np.concatenate([target_image_anchor,target_text_anchor],axis=0).mean(axis=0)
|
||||
delta=self.target_adv(image,torch.from_numpy(positive_code).to(self.rank, non_blocking=True),
|
||||
torch.from_numpy(negetive_code).to(self.rank, non_blocking=True))
|
||||
adv_image=delta+image
|
||||
adv_images.append(adv_image)
|
||||
adv_labels.append(target_label)
|
||||
texts.append(text)
|
||||
return adv_images, texts, adv_labels
|
||||
|
||||
|
||||
|
||||
def train(self):
|
||||
self.logger.info("Start train.")
|
||||
|
||||
for epoch in range(self.args.epochs):
|
||||
self.train_epoch(epoch)
|
||||
self.valid(epoch)
|
||||
self.save_model(epoch)
|
||||
|
||||
self.logger.info(f">>>>>>> FINISHED >>>>>> Best epoch, I-T: {self.best_epoch_i}, mAP: {self.max_mapi2t}, T-I: {self.best_epoch_t}, mAP: {self.max_mapt2i}")
|
||||
|
||||
def bayesian_loss(self, a: torch.Tensor, b: torch.Tensor, label_sim: torch.Tensor):
|
||||
|
||||
s = torch.matmul(a, b.t())
|
||||
b_loss = -torch.mean(label_sim * s - torch.log(1 + torch.exp(s)))
|
||||
|
||||
return b_loss
|
||||
|
||||
def distribution_loss(self, a: torch.Tensor, b: torch.Tensor, label_sim: torch.Tensor):
|
||||
"""
|
||||
"""
|
||||
kl_divergence = torch.mean(a * torch.log(a / (b + 0.001)))
|
||||
print("mean", torch.mean(a - b))
|
||||
print("kl", kl_divergence)
|
||||
return kl_divergence
|
||||
|
||||
|
||||
def similarity_loss(self, a: torch.Tensor, b: torch.Tensor, label_sim: torch.Tensor, threshold=0.05):
|
||||
|
||||
# $\vartheta$
|
||||
vartheta = self.args.vartheta
|
||||
if self.args.sim_threshold != 0:
|
||||
threshold = self.args.sim_threshold
|
||||
similarity = (1 - cosine_similarity(a, b)) if self.args.similarity_function == "cosine" else euclidean_similarity(a, b)
|
||||
|
||||
positive_similarity = similarity * label_sim
|
||||
# 只要cosine为负值的全都算为计算正确了，因为优化到2确实很难。
|
||||
negative_similarity = similarity * (1 - label_sim)
|
||||
|
||||
if self.args.similarity_function == "cosine":
|
||||
positive_similarity = positive_similarity.clip(threshold) - threshold
|
||||
negative_similarity = negative_similarity.clip(max=1.)
|
||||
negative_similarity = torch.tensor([1.]).expand_as(negative_similarity).to(self.rank) * (1 - label_sim) - negative_similarity
|
||||
elif self.args.similarity_function == "euclidean":
|
||||
# 有euclidean距离可知，当有一半长度的hash码不同时，其negative_similarity距离应该是长度（concat操作将outputdim翻倍），所以这里clip掉认为认定的值
|
||||
# 人为认定的最大值是一半长度的hash码不同。
|
||||
max_value = float(self.args.output_dim * 2 * vartheta) ** 0.5
|
||||
negative_similarity = negative_similarity.clip(max=max_value)
|
||||
negative_similarity = torch.tensor([max_value]).expand_as(negative_similarity).to(self.rank) * (1 - label_sim) - negative_similarity
|
||||
|
||||
if self.args.loss_type == "l1":
|
||||
positive_loss = positive_similarity.mean()
|
||||
negative_loss = negative_similarity.mean()
|
||||
elif self.args.loss_type == "l2":
|
||||
positive_loss = torch.pow(positive_similarity, 2).mean()
|
||||
negative_loss = torch.pow(negative_similarity, 2).mean()
|
||||
else:
|
||||
raise ValueError("argument of loss_type is not support.")
|
||||
|
||||
return similarity, positive_loss, negative_loss
|
||||
|
||||
def make_hash_code(self, code: list) -> torch.Tensor:
|
||||
|
||||
code = torch.stack(code)
|
||||
# print(code.shape)
|
||||
code = code.permute(1, 0, 2)
|
||||
hash_code = torch.argmax(code, dim=-1)
|
||||
hash_code[torch.where(hash_code == 0)] = -1
|
||||
hash_code = hash_code.float()
|
||||
|
||||
return hash_code
|
||||
|
||||
def get_code(self, data_loader, length: int):
|
||||
|
||||
img_buffer = torch.empty(length, self.args.output_dim, dtype=torch.float).to(self.rank)
|
||||
text_buffer = torch.empty(length, self.args.output_dim, dtype=torch.float).to(self.rank)
|
||||
|
||||
for image, text, label, index in tqdm(data_loader):
|
||||
image = image.to(self.rank, non_blocking=True)
|
||||
text = text.to(self.rank, non_blocking=True)
|
||||
index = index.numpy()
|
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image_hash=self.img_model(image)
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text_feat=self.bert(text)[0]
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text_hash=self.txt_model(text_feat)
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img_buffer[index, :] = image_hash.data
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text_buffer[index, :] = text_hash.data
|
||||
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return img_buffer, text_buffer# img_buffer.to(self.rank), text_buffer.to(self.rank)
|
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|
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def get_adv_code(self, adv_data_list,text_list):
|
||||
|
||||
img_buffer = torch.empty(len(adv_data_list), self.args.output_dim, dtype=torch.float).to(self.rank)
|
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text_buffer = torch.empty(len(text_list), self.args.output_dim, dtype=torch.float).to(self.rank)
|
||||
|
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for i in tqdm(range(len(adv_data_list))):
|
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image = adv_data_list[i].to(self.rank, non_blocking=True)
|
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text = text_list[i].to(self.rank, non_blocking=True)
|
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# index = index.numpy()
|
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image_hash=self.img_model(image)
|
||||
text_feat=self.bert(text)[0]
|
||||
text_hash=self.txt_model(text_feat)
|
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# text_hash = self.make_hash_code(text_hash)
|
||||
# image_hash.to(self.rank)
|
||||
# text_hash.to(self.rank)
|
||||
img_buffer[i, :] = image_hash.data
|
||||
text_buffer[i, :] = text_hash.data
|
||||
|
||||
return img_buffer, text_buffer# img_buffer.to(self.rank), text_buffer.to(self.rank)
|
||||
|
||||
|
||||
def valid_attack(self,adv_images, texts, adv_labels):
|
||||
save_dir = os.path.join(self.args.save_dir, "adv_PR_cruve")
|
||||
os.makedirs(save_dir, exist_ok=True)
|
||||
|
||||
|
||||
|
||||
def test(self, mode_name="i2t"):
|
||||
if self.args.pretrained == "":
|
||||
raise RuntimeError("test step must load a model! please set the --pretrained argument.")
|
||||
self.change_state(mode="valid")
|
||||
save_dir = os.path.join(self.args.save_dir, "PR_cruve")
|
||||
os.makedirs(save_dir, exist_ok=True)
|
||||
query_img, query_txt = self.get_code(self.query_loader, self.args.query_num) if self.args.hash_layer == "select" else super().get_code(self.query_loader, self.args.query_num)
|
||||
retrieval_img, retrieval_txt = self.get_code(self.retrieval_loader, self.args.retrieval_num) if self.args.hash_layer == "select" else super().get_code(self.retrieval_loader, self.args.retrieval_num)
|
||||
mAPi2t = calc_map_k(query_img, retrieval_txt, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
# print("map map")
|
||||
mAPt2i = calc_map_k(query_txt, retrieval_img, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
mAPi2i = calc_map_k(query_img, retrieval_img, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
mAPt2t = calc_map_k(query_txt, retrieval_txt, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
self.max_mapt2i = max(self.max_mapt2i, mAPt2i)
|
||||
self.logger.info(f">>>>>> MAP(i->t): {mAPi2t}, MAP(t->i): {mAPt2i}, MAP(t->t): {mAPt2t}, MAP(i->i): {mAPi2i}")
|
||||
|
||||
query_img = query_img.cpu().detach().numpy()
|
||||
query_txt = query_txt.cpu().detach().numpy()
|
||||
retrieval_img = retrieval_img.cpu().detach().numpy()
|
||||
retrieval_txt = retrieval_txt.cpu().detach().numpy()
|
||||
query_labels = self.query_labels.numpy()
|
||||
retrieval_labels = self.retrieval_labels.numpy()
|
||||
|
||||
result_dict = {
|
||||
'q_img': query_img,
|
||||
'q_txt': query_txt,
|
||||
'r_img': retrieval_img,
|
||||
'r_txt': retrieval_txt,
|
||||
'q_l': query_labels,
|
||||
'r_l': retrieval_labels
|
||||
}
|
||||
scio.savemat(os.path.join(save_dir, str(self.args.output_dim) + "-ours-" + self.args.dataset + "-" + mode_name + ".mat"), result_dict)
|
||||
self.logger.info(">>>>>> save all data!")
|
||||
|
||||
|
||||
def valid(self, epoch):
|
||||
self.logger.info("Valid.")
|
||||
self.change_state(mode="valid")
|
||||
query_img, query_txt = self.get_code(self.query_loader, self.args.query_num) if self.args.hash_layer == "select" else super().get_code(self.query_loader, self.args.query_num)
|
||||
retrieval_img, retrieval_txt = self.get_code(self.retrieval_loader, self.args.retrieval_num) if self.args.hash_layer == "select" else super().get_code(self.retrieval_loader, self.args.retrieval_num)
|
||||
# print("get all code")
|
||||
mAPi2t = calc_map_k(query_img, retrieval_txt, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
# print("map map")
|
||||
mAPt2i = calc_map_k(query_txt, retrieval_img, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
mAPi2i = calc_map_k(query_img, retrieval_img, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
mAPt2t = calc_map_k(query_txt, retrieval_txt, self.query_labels, self.retrieval_labels, None, self.rank)
|
||||
if self.max_mapi2t < mAPi2t:
|
||||
self.best_epoch_i = epoch
|
||||
self.save_mat(query_img, query_txt, retrieval_img, retrieval_txt, mode_name="i2t")
|
||||
self.max_mapi2t = max(self.max_mapi2t, mAPi2t)
|
||||
if self.max_mapt2i < mAPt2i:
|
||||
self.best_epoch_t = epoch
|
||||
self.save_mat(query_img, query_txt, retrieval_img, retrieval_txt, mode_name="t2i")
|
||||
self.max_mapt2i = max(self.max_mapt2i, mAPt2i)
|
||||
self.logger.info(f">>>>>> [{epoch}/{self.args.epochs}], MAP(i->t): {mAPi2t}, MAP(t->i): {mAPt2i}, MAP(t->t): {mAPt2t}, MAP(i->i): {mAPi2i}, \
|
||||
MAX MAP(i->t): {self.max_mapi2t}, MAX MAP(t->i): {self.max_mapt2i}")
|
||||
|
||||
def save_mat(self, query_img, query_txt, retrieval_img, retrieval_txt, mode_name="i2t"):
|
||||
|
||||
save_dir = os.path.join(self.args.save_dir, "PR_cruve")
|
||||
os.makedirs(save_dir, exist_ok=True)
|
||||
|
||||
query_img = query_img.cpu().detach().numpy()
|
||||
query_txt = query_txt.cpu().detach().numpy()
|
||||
retrieval_img = retrieval_img.cpu().detach().numpy()
|
||||
retrieval_txt = retrieval_txt.cpu().detach().numpy()
|
||||
query_labels = self.query_labels.numpy()
|
||||
retrieval_labels = self.retrieval_labels.numpy()
|
||||
|
||||
result_dict = {
|
||||
'q_img': query_img,
|
||||
'q_txt': query_txt,
|
||||
'r_img': retrieval_img,
|
||||
'r_txt': retrieval_txt,
|
||||
'q_l': query_labels,
|
||||
'r_l': retrieval_labels
|
||||
}
|
||||
scio.savemat(os.path.join(save_dir, str(self.args.output_dim) + "-ours-" + self.args.dataset + "-" + mode_name + ".mat"), result_dict)
|
||||
self.logger.info(f">>>>>> save best {mode_name} data!")
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue