#!/usr/bin/env python
# coding: utf-8

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# ![image.png](attachment:image.png)

# In[1]:


## 心得

# 直接用召回的双塔计算物品相似性，效果可能不好。