Courses from 1000+ universities
AI got cheap enough that Duolingo’s most expensive plan may not survive it. I read the earnings call transcript and opened the app to see what is actually changing for learners.
600 Free Google Certifications
Artificial Intelligence
Data Science
Cybersecurity
L'Italiano nel mondo
Introduction to HTML5
Umano Digitale
Organize and share your learning with Class Central Lists.
View our Lists Showcase
Data Scientists spend most of their time cleaning data. In this course, you will learn to convert and manipulate messy data to extract what you need.
Get started with MongoDB: deploy an Atlas cluster, connect via mongo shell and Compass, run CRUD queries, build aggregation pipelines, indexes, Atlas Search, and ACID transactions.
Analyze data with MongoDB's Aggregation Framework: filter, sort, group, join and traverse graph data, migrate relational schemas, and prepare data for machine learning workflows.
See how vectorizing documents in MongoDB Atlas enables queries that find content semantically similar to a question.
Learn everything you need to know to develop a retail application using MongoDB, Node.js and the MEAN Stack.
Get running with MongoDB: model documents, import data into a cluster, query with the CRUD API and Aggregation Framework, and use Atlas, Compass, and CLI tools.
Get personalized course recommendations, track subjects and courses with reminders, and more.