Homepage
Open in app
Sign inGet started

DSMLi

Data Science with Mingyang Li

Latest
4 Ways to improve the performance of a SQL MERGE statement

4 Ways to improve the performance of a SQL MERGE statement

A MERGE statement can INSERT, UPDATE, and DELETE records in a single transaction, making it more readable and more efficient than having 3…
Go to the profile of Ming
Ming
Jan 18
Building A Text UnWrapper: An Example Of Feature Engineering

Building A Text UnWrapper: An Example Of Feature Engineering

A “hard return” or a “hard wrap” is a line break intended for keeping the text width within a certain value, usually 80 characters. They…
Go to the profile of Ming
Ming
Jun 28, 2018

My Infrastructure For Document-Parsing Projects

Here’s how my document-parsing (i.e. info-extraction) projects are usually set up:
Go to the profile of Ming
Ming
Jun 21, 2018

MongoDB Left Anti-Join

Suppose you have two Collections (A and B) in a MongoDB Database, and you want to find all Documents in A whose certain field does not…
Go to the profile of Ming
Ming
Jun 21, 2018
About Data Science with Mingyang LILatest StoriesArchiveAbout MediumTermsPrivacy