Jingwen Zheng

We talk about how recommendation engines contribute to retail promotion and how could we follow the performance of a promotion.

In this article, we talk about what we need to create an Azure function, what is HTTP triggers and bindings, how to test its functionality locally and how to publish it on Azure.

This blog talks about how to create a PostgreSQL database and tables with Docker container and how to insert a dataframe into PostgreSQL database with Python.

Île-de-France is the most populous of the 18 regions of France. It is located in the north-central part of the country and often called the Région Parisienne ("Paris Region") because it includes the city of Paris. Besides the landmarks of Paris, the region has many important historic sites, including the Palace of Versailles and the Palace of Fo...

Paris is the capital and most populous city of France. Since the 17th century, Paris has been one of Europe's major centers of finance, diplomacy, commerce, fashion, science, and the arts. All these elements help to bring the increasing price of real estate in Paris. In this blog, I'll talk about the second-hand apartments purchases in Paris bet...

Review of 2021.

People who are familiar with openpyxl know that we can use it to read/write Excel 2010 xlsx/xlsm/xltx/xltm files. In this blog, I will show you how to write values into an Excel template.

Some time ago, I have successively analyzed the adverse reactions of Pfizer vaccine, Coronavac vaccine, AstraZeneca vaccine and Modena vaccine. Today we will compare the side effects of different vaccines in a longitudinal direction.