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baselines.py
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baselines.py
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import sys
sys.path.insert(0, '/home/Hotspots/code/hotspot_transfer')
from sklearn.preprocessing import MinMaxScaler
from sklearn.metrics import mean_squared_error, mean_absolute_error
from TSX.utils import load_data, load_county_data, get_initial_county_data, train_model, load_county_name, get_importance_value, \
plot_temporal_importance, get_top_importance_value, get_normalize_importance_value, get_hotspot_weight, \
train_model_multitask, load_ckp, mean_absolute_percentage_error, load_confirmed_data, get_weight
from TSX.models import IMVTensorLSTM, IMVTensorLSTMMultiTask
import os
import argparse
import tqdm
import torch
import numpy as np
import pandas as pd
import pickle
import math
import timeit
import time
import matplotlib.pyplot as plt
import matplotlib.dates as mdates
plt.style.use('seaborn')
from matplotlib import rc
rc('font', weight='bold')
def train_one_county(fips, state, train_loader, valid_loader, ft_size):
hidden_size = args.hidden_size
n_epochs = args.n_epochs
if args.explainer == 'IMVTensorLSTM':
model = IMVTensorLSTM(ft_size, 1, hidden_size, device).to(device)
optimizer = torch.optim.Adam(model.parameters(), lr=0.001, amsgrad=True)
epoch_scheduler = torch.optim.lr_scheduler.StepLR(optimizer, 100, gamma=1)
if args.train:
train_model(model, args.explainer, train_loader, valid_loader, optimizer=optimizer,
epoch_scheduler=epoch_scheduler, n_epochs=n_epochs,
device=device, county_fips_code=fips, state=state, cv=0)
else:
model_path = '../model_save/' + args.explainer + "/" + state + '/' + str(fips) + ".pt"
model.load_state_dict(torch.load(model_path))
else:
model = []
return model
def evaluate_performance(model, state, fips, county_name, scaler, X_train, y_train, X_test, y_test, X_total, y_total):
scaler_for_cases = MinMaxScaler()
scaler_for_cases.min_, scaler_for_cases.scale_ = scaler.min_[0], scaler.scale_[0]
model.eval()
date_sequence = []
no_transfer_predict = 0
if args.explainer == "IMVTensorLSTMMultiTask" or args.explainer == 'TransferLearning':
X_total, task_idx, activated_share_columns, date_sequence = X_total
# activated_share_columns = activated_share_columns[0, :]
task_idx = task_idx.type(torch.LongTensor)
with torch.no_grad():
total_predict, total_alphas, total_betas, theta, neg_llk = model(X_total.to(device), y_total.to(device), task_idx, activated_share_columns)
train_predict, train_alphas, train_betas, theta, neg_llk = model(X_train.to(device), y_train.to(device), task_idx, activated_share_columns)
test_predict, test_alphas, test_betas, theta, neg_llk = model(X_test.to(device), y_test.to(device), task_idx, activated_share_columns)
else:
with torch.no_grad():
total_predict, total_alphas, total_betas = model(X_total.to(device))
train_predict, train_alphas, train_betas = model(X_train.to(device))
test_predict, test_alphas, test_betas = model(X_test.to(device))
total_predict_back = scaler_for_cases.inverse_transform(total_predict.detach().cpu().numpy())
total_y_back = scaler_for_cases.inverse_transform(y_total.data.numpy())
train_predict_back = scaler_for_cases.inverse_transform(train_predict.detach().cpu().numpy())
train_y_back = scaler_for_cases.inverse_transform(y_train.data.numpy())
if args.test_data_size != 0:
test_predict_back = scaler_for_cases.inverse_transform(test_predict.detach().cpu().numpy())
test_y_back = scaler_for_cases.inverse_transform(y_test.data.numpy())
mse = mean_squared_error(test_y_back, test_predict_back)
mae = mean_absolute_error(test_y_back, test_predict_back)
mape = mean_absolute_percentage_error(test_y_back, test_predict_back)
rmse = round(np.sqrt(mse), 3)
mae = round(mae, 3)
y_predict = np.concatenate([train_predict_back[:-1, 0], train_predict_back[-1, :], test_predict_back.squeeze(0)])
y_true = np.concatenate([train_y_back[:-1, 0], train_y_back[-1, :], test_y_back.squeeze(0)])
if args.explainer == "TransferLearning":
pickle_path = '../model_save/' + args.explainer + "/" + "NY" + '/pickle'
if not os.path.exists(pickle_path):
os.mkdir(pickle_path)
if state == "NY":
with open(pickle_path + '/' + str(fips) + '.pkl', 'wb') as f:
pickle.dump(y_predict, f)
elif state == "NY_flu_covid":
with open(pickle_path + '/' + str(fips) + '.pkl', 'rb') as f:
no_transfer_predict = pickle.load(f)
#y_predict = np.concatenate([train_predict_back[:, 0], test_predict_back.squeeze(0)])
#y_true = np.concatenate([train_y_back[:, 0], test_y_back.squeeze(0)])
else:
mae = 0
rmse = 0
mape = 0
test_predict_back = scaler_for_cases.inverse_transform(test_predict.detach().cpu().numpy())
test_y_back = scaler_for_cases.inverse_transform(y_test.data.numpy())
y_predict = np.concatenate([train_predict_back[:-1, 0], train_predict_back[-1, :]])
y_true = np.concatenate([train_y_back[:-1, 0], train_y_back[-1, :]])
alphas, betas = get_importance_value(train_alphas, train_betas)
#print('County {} MAE: {}'.format(fips, mae))
#print('County {} RMSE: {}'.format(fips, rmse))
if args.save:
plt.axvline(x=date_sequence[-args.decoding_steps-1], c='r', linestyle='--')
plt.gca().xaxis.set_major_formatter(mdates.DateFormatter('%b-%d'))
plt.xticks(rotation=0)
title = '{} ({})'.format(county_name, fips)
plot_path = '../plots/' + args.explainer + "/" + state + '/' + str(fips) + "/" + "time_series.pdf"
if state == "NY_flu":
plt.plot(date_sequence, y_true, color='blue', label='Active Flu Cases')
plt.plot(date_sequence, y_predict, color='orange', label='Predicted Active Flu Cases')
elif state == "NY_flu_covid":
plt.plot(date_sequence, y_true, color='blue', label='Active Cases')
plt.plot(date_sequence, y_predict, color='orange', label='Predicted Active Cases with Transfer')
plt.plot(date_sequence, no_transfer_predict, color='red', label='Predicted Active Cases without Transfer')
plot_path = '../plots/' + args.explainer + "/" + state + '/' + str(fips) + "/" + str(args.lambda_trans) + "_time_series.pdf"
else:
plt.plot(date_sequence, y_true, color='blue', label='Active Cases')
plt.plot(date_sequence, y_predict, color='orange', label='Predicted Active Cases')
plt.title(title)
plt.xlabel('Prediction Date')
plt.ylabel('Population Count')
plt.legend()
plt.savefig(plot_path, dpi=300, orientation='landscape')
#plt.show()
plt.close()
return mae, rmse, mape, alphas, betas
def state_level_computation(state):
# Load Data
path = '../data/state_mobility_link/' + state + '_mobility_link.csv'
df = load_data(path)
feature_county_list = list(df.columns[4:])
county_list = list(set(df['next_area_fip'].tolist()))[9:10]
county_list = [str(ct) for ct in county_list]
county_name_list = load_county_name(county_list)
county_dict = dict(zip(county_list, county_name_list))
mae_list = []
rmse_list = []
mape_list = []
valid_county_list = []
county_importance_dict = dict(zip(['county_covid_cases'] + feature_county_list, np.zeros(len(feature_county_list) + 1)))
error_county_list = []
state_adjacency_matrix = np.zeros((len(county_list), len(county_list)))
num = 0
for county_fips, county_name in tqdm.tqdm(county_dict.items(), file=sys.stdout):
county_plot_path = '../plots/' + args.explainer + "/" + state + '/' + str(county_fips)
if not os.path.exists(county_plot_path):
os.mkdir(county_plot_path)
print("Computing for county {}, fips {}".format(county_name, county_fips))
try:
data_train_loader, data_test_loader, X_train, y_train, X_test, y_test, X_total, \
y_total, scaler, feature_name, feature_fips = \
load_county_data(df, county_fips, args.seq_length, args.batch_size, args.test_data_size, args.fillna)
except ValueError as err:
print(err.args)
error_county_list += [county_fips]
continue
feature_size = X_total.shape[2]
model = train_one_county(county_fips, state, data_train_loader, data_test_loader, feature_size)
mae, rmse, mape, alphas, betas = evaluate_performance(model, state, county_fips, county_name, scaler, X_train, y_train,
X_test, y_test, X_total, y_total)
normalize_betas = get_normalize_importance_value(betas)
hotspot_weight = get_hotspot_weight(y_train)
for i, ct in enumerate(feature_fips):
county_importance_dict[ct] += normalize_betas[i] * hotspot_weight
# adjacency matrix
for i, ct in enumerate(feature_fips):
if ct in county_list:
state_adjacency_matrix[num, county_list.index(ct)] = normalize_betas[i] * hotspot_weight
num = num + 1
alphas, betas, feature_name = get_top_importance_value(alphas, betas, feature_name)
plot_temporal_importance(alphas, feature_name, args.explainer, state, county_fips, county_name)
mae_list += [mae]
rmse_list += [rmse]
mape_list += [mape]
valid_county_list += [county_fips]
performance_df = pd.DataFrame({'county': valid_county_list, 'MAE': mae_list, 'RMSE': rmse_list, 'MAPE': mape_list})
importance_df = pd.DataFrame(county_importance_dict.items(), columns=['fips', 'Importance_score']).\
sort_values(by='Importance_score', ascending=False)
importance_df['county_name'] = load_county_name(importance_df['fips'])
print(performance_df.head())
print(importance_df.head())
output_path = "../outputs/" + args.explainer + "/" + state + "/"
performance_path = output_path + "Total_county_performance.csv"
importance_path = output_path + "Total_county_importance.csv"
performance_df.to_csv(performance_path)
importance_df.to_csv(importance_path)
adjacency_df = pd.DataFrame(state_adjacency_matrix)
adjacency_df.columns = county_name_list
adjacency_df.index = county_list
# adjacency_df.to_csv(output_path + "adjacency_matrix.csv")
with open(output_path + "error_county.txt", "wb") as fp: # Pickling
pickle.dump(error_county_list, fp)
def state_level_computation_multitask(state, transfer):
# Load Data
if not transfer:
if "weekly" in state:
if "test" in state:
path = '../data/Weekly_mobility_link_test_data/' + state.split("_")[0] + '_mobility_link_weekly_test.csv'
else:
path = '../data/Weekly_mobility_link/' + state.split("_")[0] + '_mobility_link_weekly.csv'
df = load_data(path)
else:
path = '../data/state_mobility_link/' + state + '_mobility_link.csv'
df = load_data(path)
else:
path = '../data/NY_flu_covid/'
if state == "NY_flu":
df = load_data(path + 'NY_flu_mobility_link_weekly.csv')
else:
df = load_data(path + 'NY_covid_mobility_link_weekly.csv')
input_task_feature = args.input_task_feature
if "test" in state:
input_task_feature_name = ['county_positivity_rate', 'next_area_cmi']
else:
input_task_feature_name = ['county_covid_cases', 'next_area_cmi']
feature_county_list = list(df.columns[3 + input_task_feature:])
county_list = list(set(df['next_area_fip'].tolist()))
county_list = [str(ct) for ct in county_list]
county_list = county_list[0:args.num_nodes]
county_name_list = load_county_name(county_list)
county_dict = dict(zip(county_list, county_name_list))
error_county_list = []
county_importance_dict = dict(
zip(input_task_feature_name + feature_county_list, np.zeros(len(feature_county_list) + input_task_feature)))
mae_list = []
rmse_list = []
mape_list = []
valid_county_list = []
data_train_loader_list = []
data_test_loader_list = []
print(county_list)
print(county_name_list)
task_num = 0
for county_fips, county_name in county_dict.items():
try:
county_plot_path = '../plots/' + args.explainer + "/" + state + '/' + str(county_fips)
if not os.path.exists(county_plot_path):
os.mkdir(county_plot_path)
_ = get_initial_county_data(df, county_fips, args.fillna, input_task_feature, args.seq_length, task_num)
task_num += 1
except ValueError as err:
print(err.args)
error_county_list += [county_fips]
continue
task_idx = 0
train_size = 0
task_scaler_dict = {}
for county_fips, county_name in county_dict.items():
try:
data_train_loader, data_test_loader, X_train, y_train, X_test, y_test, X_total, \
y_total, scaler, feature_name, feature_fips = \
load_county_data(df, county_fips, args.seq_length, args.batch_size, args.test_data_size,
args.fillna, input_task_feature, input_task_feature_name, args.decoding_steps, args.validation_data_size, task_idx)
task_scaler_dict[task_idx] = scaler
task_idx += 1
data_train_loader_list += [data_train_loader]
data_test_loader_list += [data_test_loader]
if X_train.shape[0] > train_size:
train_size = X_train.shape[0]
except ValueError as err:
print(err)
continue
input_share_dim = len(feature_county_list)
hidden_size = args.hidden_size
n_epochs = args.n_epochs
iterations = math.ceil(train_size / args.batch_size)
start_time = timeit.default_timer()
flu_model = IMVTensorLSTMMultiTask(input_share_dim, input_task_feature, task_num, 1, hidden_size, device, args.em, args.drop_prob, args.decoding_steps).to(device)
if transfer:
if state == "NY_flu_covid":
print("loading flu model-------")
flu_optimizer = torch.optim.Adam(flu_model.parameters(), lr=0.001, amsgrad=True)
model_path = '../model_save/' + args.explainer + '/NY_flu/NY_flu_best.pt'
flu_model, _, _, _ = load_ckp(model_path, flu_model, flu_optimizer)
model = IMVTensorLSTMMultiTask(input_share_dim, input_task_feature, task_num, 1, hidden_size, device, args.em,
args.drop_prob, args.decoding_steps).to(device)
if torch.cuda.device_count() > 1 and device == 'cuda':
print("Let's use", torch.cuda.device_count(), "GPUs!")
model = torch.nn.DataParallel(model)
optimizer = torch.optim.Adam(model.parameters(), lr=0.001, amsgrad=True)
epoch_scheduler = torch.optim.lr_scheduler.StepLR(optimizer, 100, gamma=1)
start_epoch = 0
valid_loss_min = 9999
if not args.train:
model_path = '../model_save/' + args.explainer + '/' + state + '/' + state + ".pt" # should be _best
model, optimizer, start_epoch, valid_loss_min = load_ckp(model_path, model, optimizer)
print("model = ", model)
print("optimizer = ", optimizer)
print("start_epoch = ", start_epoch)
print("valid_loss_min = {:.6f}".format(valid_loss_min))
n_epochs = n_epochs - start_epoch
if not args.evaluate:
train_model_multitask(model, args.explainer, data_train_loader_list, data_test_loader_list, flu_model,
input_task_feature, start_epoch, valid_loss_min, optimizer=optimizer, epoch_scheduler=epoch_scheduler, n_epochs=n_epochs,
device=device, state=state, iterations=iterations, lambda_reg=args.lambda_reg, lambda_trans=args.lambda_trans,
task_scaler_dict=task_scaler_dict, decoding_steps=args.decoding_steps, save=args.save, cv=0)
stop_time = timeit.default_timer()
task_idx = 0
for county_fips, county_name in county_dict.items():
try:
data_train_loader, data_test_loader, X_train, y_train, X_test, y_test, X_total, \
y_total, scaler, feature_name, feature_fips = \
load_county_data(df, county_fips, args.seq_length, args.batch_size, args.test_data_size,
args.fillna, input_task_feature, input_task_feature_name, args.decoding_steps, args.validation_data_size, task_idx)
except ValueError as err:
continue
mae, rmse, mape, alphas, betas = evaluate_performance(model, state, county_fips, county_name, scaler, X_train,
y_train, X_test, y_test, X_total, y_total)
confirmed = load_confirmed_data()
for i, ct in enumerate(feature_fips):
if i < input_task_feature:
county_importance_dict[ct] += betas[input_task_feature*task_idx + i]
else:
weight = get_weight(ct, county_fips, confirmed)
if args.weight and weight != -1:
county_importance_dict[ct] += betas[task_num * input_task_feature + i - input_task_feature] * weight
else:
county_importance_dict[ct] += betas[task_num * input_task_feature + i - input_task_feature]
task_idx += 1
mae_list += [mae]
rmse_list += [rmse]
mape_list += [mape]
valid_county_list += [county_fips]
performance_df = pd.DataFrame({'county': valid_county_list, 'MAE': mae_list, 'RMSE': rmse_list, 'MAPE': mape_list})
importance_df = pd.DataFrame(county_importance_dict.items(), columns=['fips', 'Importance_score']). \
sort_values(by='Importance_score', ascending=False)
importance_df['county_name'] = load_county_name(importance_df['fips'])
print(performance_df.head())
print(importance_df.head(10))
output_path = "../outputs/" + args.explainer + "/" + state + "/"
if state == "NY_flu_covid":
performance_path = output_path + str(args.lambda_trans) + "_Total_county_performance.csv"
importance_path = output_path + str(args.lambda_trans) + "_Total_county_importance.csv"
else:
performance_path = output_path + "Total_county_performance.csv"
importance_path = output_path + "Total_county_importance.csv"
if args.save:
print("aa")
performance_df.to_csv(performance_path)
importance_df.to_csv(importance_path)
print('Training time: ', stop_time - start_time)
def main(state):
# load full data list
state_list = ["AK", "NY", "WA", "NV", "AZ", "AL", "FL", "GA", "MS", "TN", "MI", "AR", "LA", "MO", "OK", "TX",
"NM", "CA", "UT", "ND", "HI", "MN", "OR", "MT", "CO", "KS", "WY", "NE", "SD", "CT", "MA", "ME",
"VT", "RI", "MD", "VA", "DE", "PA", "OH", "NJ", "SC", "NC", "IA", "WI", "IL", "ID", "KY", "IN",
"WV", "NH", "DC"]
state_list = [state]
for i, state in enumerate(state_list):
if not os.path.exists('../plots/' + args.explainer + '/' + state):
os.mkdir('../plots/' + args.explainer + '/' + state)
if not os.path.exists('../model_save/' + args.explainer + '/' + state):
os.mkdir('../model_save/' + args.explainer + '/' + state)
if not os.path.exists('../outputs/' + args.explainer + '/' + state):
os.mkdir('../outputs/' + args.explainer + '/' + state)
print("Start for state {}, num {}".format(state, i))
if args.explainer == "IMVTensorLSTMMultiTask":
state_level_computation_multitask(state, 0)
elif args.explainer == "IMVTensorLSTM":
state_level_computation(state)
elif args.explainer == "TransferLearning":
state_level_computation_multitask(state, 1)
if __name__ == '__main__':
np.random.seed(2021)
parser = argparse.ArgumentParser(description='Run baseline model for covid')
parser.add_argument('--explainer', type=str, default='IMVTensorLSTMMultiTask', help='Explainer model')
parser.add_argument('--fillna', type=str, default='zero', help='fill na')
parser.add_argument('--input_task_feature', type=int, default=2, help='input_task_feature')
parser.add_argument('--seq_length', type=int, default=4, help='seq_length')
parser.add_argument('--batch_size', type=int, default=16, help='batch_size')
parser.add_argument('--hidden_size', type=int, default=128, help='hidden_size')
parser.add_argument('--n_epochs', type=int, default=300, help='n_epochs')
parser.add_argument('--test_data_size', type=int, default=1, help='test_data_size')
parser.add_argument('--validation_data_size', type=int, default=0, help='validation_data_size')
parser.add_argument('--drop_prob', type=float, default=0.1, help='drop prob')
parser.add_argument('--lambda_reg', type=float, default=0.001, help='lambda regulation')
parser.add_argument('--lambda_trans', type=float, default=0.5, help='lambda_trans')
parser.add_argument('--decoding_steps', type=int, default=1, help='decoding_steps')
parser.add_argument('--num_nodes', type=int, default=1, help='num_nodes')
parser.add_argument('--train', action='store_false')
parser.add_argument('--evaluate', action='store_true')
parser.add_argument('--weight', action='store_false')
parser.add_argument('--em', action='store_true')
parser.add_argument('--save', action='store_true')
args = parser.parse_args()
device = 'cuda' if torch.cuda.is_available() else 'cpu'
device = 'cpu'
if not os.path.exists('../plots'):
os.mkdir('../plots')
if not os.path.exists('../model_save'):
os.mkdir('../model_save')
if not os.path.exists('../outputs'):
os.mkdir('../outputs')
if not os.path.exists('../model_save/' + args.explainer):
os.mkdir('../model_save/' + args.explainer)
if not os.path.exists('../outputs/' + args.explainer):
os.mkdir('../outputs/' + args.explainer)
if not os.path.exists('../plots/' + args.explainer):
os.mkdir('../plots/' + args.explainer)
for step in [1]:
for state in ["IL_weekly"]:
node_list = [2, 5, 10, 15, 20, 25, 30, 35]
# node_list = [2, 5]
time_list = []
for num_node in node_list:
print("state: {}".format(state))
print("num node: {}".format(num_node))
args.decoding_steps = step
args.num_nodes = num_node
start_time = time.time()
main(state)
length = (time.time() - start_time) / 60
time_list += [length]
len_list = len(node_list)
runtime_path = '../outputs/' + args.explainer + "/" + state + "/"
runtime_raw = zip([state] * len_list, node_list, time_list)
run_time_df = pd.DataFrame(runtime_raw, columns=['state', 'num_components', 'Time'])
run_time_df.to_csv(runtime_path + 'component_runtime_df_' + '.csv')
#for i in [0.1, 0.01, 0.001]:
# for j in [0.0, 0.1, 0.2]:
# args.lambda_reg = i
# args.drop_prob = j
# print("regulation: {}, drop prob: {}".format(i, j))
# main()
#for lambda_trans in [0.2, 0.4, 0.6, 0.8, 1.0, 1.5, 2.5]:
# args.lambda_trans = lambda_trans
# print("now computing for lambda trans = {}".format(lambda_trans))
# main('NY_flu_covid')
#for state in ['NY_flu', 'NY_flu_covid']:
# print("now run for {}".format(state))
# print("----------------------------")
# if state == 'NY_flu':
# args.test_data_size = 0
# args.n_epochs = 250
# main(state)
# elif state == 'NY_flu_covid':
# args.test_data_size = 1
# args.n_epochs = 400
# for lambda_trans in [0.2, 0.5, 1.0]:
# print("lambda transfer = {}".format(lambda_trans))
# args.lambda_trans = lambda_trans
# main(state)
# else:
# args.n_epochs = 400
# args.test_data_size = 1
# main(state)