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import json
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import os
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import pickle
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import time
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import deepmatcher as dm
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import torch
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import pandas as pd
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import ConfigSpace
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from ConfigSpace import Configuration
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from ConfigSpace.read_and_write import json as csj
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import torch.nn.functional
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from tqdm import tqdm
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from setting import *
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def matching(config):
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print(f'\033[33mConfig: {config}\033[0m')
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start = time.time()
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with open(md_output_dir + "mds.pickle", "rb") as file:
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md_list = pickle.load(file)
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train, valid, test = dm.data.process(
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path=directory_path,
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train='train_whole.csv',
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validation='valid_whole.csv',
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test='test_whole.csv',
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use_magellan_convention=True, # 与Magellan命名风格相同
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embeddings=config['embeddings'])
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train_table = train.get_raw_table()
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test_table = test.get_raw_table()
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valid_table = valid.get_raw_table()
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attr_summarizer = config['attr_summarizer']
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if attr_summarizer == 'sif':
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model_ = dm.MatchingModel(
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attr_comparator=config['attr_comparator'],
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classifier=str(config['classifier_layers']) + '-layer-' + config['classifier_bypass'] + '-' + config[
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'classifier_nonlinear'],
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attr_summarizer=dm.attr_summarizers.SIF(word_contextualizer=config['word_contextualizer'],
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word_comparator=config['word_comparator'],
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word_aggregator=config['word_aggregator']))
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elif attr_summarizer == 'rnn':
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model_ = dm.MatchingModel(
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attr_comparator=config['attr_comparator'],
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classifier=str(config['classifier_layers']) + '-layer-' + config['classifier_bypass'] + '-' + config[
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'classifier_nonlinear'],
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attr_summarizer=dm.attr_summarizers.RNN(word_contextualizer=config['word_contextualizer'],
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word_comparator=config['word_comparator'],
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word_aggregator=config['word_aggregator']))
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elif attr_summarizer == 'attention':
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model_ = dm.MatchingModel(
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attr_comparator=config['attr_comparator'],
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classifier=str(config['classifier_layers']) + '-layer-' + config['classifier_bypass'] + '-' + config[
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'classifier_nonlinear'],
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attr_summarizer=dm.attr_summarizers.Attention(word_contextualizer=config['word_contextualizer'],
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word_comparator=config['word_comparator'],
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word_aggregator=config['word_aggregator']))
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else: # 'hybrid'
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model_ = dm.MatchingModel(
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attr_comparator=config['attr_comparator'],
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classifier=str(config['classifier_layers']) + '-layer-' + config['classifier_bypass'] + '-' + config[
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'classifier_nonlinear'],
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attr_summarizer=dm.attr_summarizers.Hybrid(word_contextualizer=config['word_contextualizer'],
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word_comparator=config['word_comparator'],
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word_aggregator=config['word_aggregator']))
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model_.run_train(
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train,
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valid,
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device='cuda',
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epochs=10,
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batch_size=16,
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best_save_path=attr_summarizer + '_model.pth',
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pos_neg_ratio=3)
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indicators = {}
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f1_score = model_.run_eval(test, device='cuda')
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indicators["F1"] = f1_score
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predictions = model_.run_prediction(test, device='cuda', output_attributes=True)
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# predictions中没有predicted列, 根据match_score手动新增 deepmatcher在计算F1时的阈值为0.5
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predictions['predicted'] = predictions['match_score'].apply(lambda score: 1 if score >= 0.5 else 0)
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# 目前predictions包含的属性：左右表全部属性+label+predicted+match_score+_id
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sim_tensor_dict = build_col_pairs_sim_tensor_dict(predictions)
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predictions['confidence'] = 0
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epl_match = 0 # 可解释，预测match
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if len(md_list) > 0:
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for row in tqdm(predictions.itertuples()):
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x = is_explicable(row, md_list, sim_tensor_dict)
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if x > 0 and str(getattr(row, 'predicted')) == str(1):
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predictions.loc[row[0], 'confidence'] = x
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epl_match += 1
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df = predictions[predictions['predicted'] == str(1)]
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interpretability = epl_match / len(df) # 可解释性
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indicators['interpretability'] = interpretability
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performance = interpre_weight * interpretability + (1 - interpre_weight) * indicators["F1"]
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indicators['performance'] = performance
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print(f'ER Indicators: {indicators}')
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predictions.to_csv(er_output_dir + r'\predictions.csv', sep=',', index=False, header=True)
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print(f'\033[33mTime consumed by matching in seconds: {time.time() - start}\033[0m')
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return indicators
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def build_col_pairs_sim_tensor_dict(predictions: pd.DataFrame):
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predictions_attrs = predictions.columns.values.tolist()
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col_tuple_list = []
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for _ in predictions_attrs:
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if _.startswith('ltable'):
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left_index = predictions_attrs.index(_)
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right_index = predictions_attrs.index(_.replace('ltable_', 'rtable_'))
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col_tuple_list.append((left_index, right_index))
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length = predictions.shape[0]
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# width = predictions.shape[1]
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predictions = predictions.reset_index(drop=True)
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sentences = predictions.values.flatten(order='F').tolist()
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embedding = model.encode(sentences, convert_to_tensor=True, device="cuda", batch_size=256, show_progress_bar=True)
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split_embedding = torch.split(embedding, length, dim=0)
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table_tensor = torch.stack(split_embedding, dim=0, out=None)
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# prediction的归一化嵌入张量
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norm_table_tensor = torch.nn.functional.normalize(table_tensor, dim=2)
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sim_tensor_dict = {}
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for col_tuple in col_tuple_list:
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lattr_tensor = norm_table_tensor[col_tuple[0]]
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rattr_tensor = norm_table_tensor[col_tuple[1]]
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mul_tensor = lattr_tensor * rattr_tensor
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sim_tensor = torch.sum(mul_tensor, 1)
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sim_tensor = torch.round(sim_tensor * 100) / 100
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sim_tensor_dict[predictions_attrs[col_tuple[0]].replace('ltable_', '')] = sim_tensor
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return sim_tensor_dict
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def is_explicable(row, all_mds: list, st_dict):
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attrs = all_mds[0][0].keys() # 从第一条md_tuple中的md字典中读取所有字段
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for md_tuple in all_mds:
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explicable = True # 假设这条md能解释当前元组
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for a in attrs:
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if st_dict[a][row[0]].item() < md_tuple[0][a]:
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explicable = False # 任意一个字段的相似度达不到阈值，这条md就不能解释当前元组
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break # 不再与当前md的其他相似度阈值比较，跳转到下一条md
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if explicable:
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return md_tuple[2] # 任意一条md能解释，直接返回
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return -1.0 # 遍历结束，不能解释
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def ml_er(config: Configuration):
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indicators = matching(config)
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output_path = er_output_dir + "eval_result.txt"
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with open(output_path, 'w') as _f:
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_f.write('F1:' + str(indicators["F1"]) + '\n')
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_f.write('interpretability:' + str(indicators['interpretability']) + '\n')
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_f.write('performance:' + str(indicators['performance']) + '\n')
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if __name__ == '__main__':
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if os.path.isfile(hpo_output_dir + "incumbent.json"):
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with open(hpo_output_dir + "configspace.json", 'r') as f:
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dict_configspace = json.load(f)
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str_configspace = json.dumps(dict_configspace)
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configspace = csj.read(str_configspace)
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with open(hpo_output_dir + "incumbent.json", 'r') as f:
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dic = json.load(f)
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configuration = ConfigSpace.Configuration(configspace, values=dic)
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ml_er(configuration)
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