1 问题：苏轼是哪里人？
2 描述：苏轼是北宋著名的文学家与政治家，眉州眉山人。
3 标签：眉州眉山人

sequence_output = all_encoder_outputs[-1] #[src_len, batch_size, hidden_size]
logits = self.qa_outputs(sequence_output)  # [src_len, batch_size,2] 
start_logits, end_logits = logits.split(1, dim=-1)
start_logits = start_logits.squeeze(-1).transpose(0, 1)  # [batch_size,src_len]
end_logits = end_logits.squeeze(-1).transpose(0, 1)  # [batch_size,src_len]
loss_fct = nn.CrossEntropyLoss(ignore_index=ignored_index)
start_loss = loss_fct(start_logits, start_positions)
end_loss = loss_fct(end_logits, end_positions)
final_loss=(start_loss + end_loss) / 2

# 定义一个多路召回的字典，将各路召回的结果都保存在这个字典当中
user_multi_recall_dict =  {'itemcf_sim_itemcf_recall': {},
                           'embedding_sim_item_recall': {},
                           'youtubednn_recall': {},
                           'youtubednn_usercf_recall': {}, 
                           'cold_start_recall': {}}

import lightgbm as lgb
lgb.LGBMRanker

from flask import Flask, request, jsonify
##创建应用
app1 = Flask(__name__)
###绑定函数
@app1.route('URL rule', methods=['post'])
def process_element_data():
	
	return
##启动应用
app1.run(....)