This Java-based path teaches RAG fundamentals, showing how to combine retrieval and LLMs for accurate, context-rich generation. Learn RAG basics, use vector databases, apply embeddings for semantic search, and build a complete end-to-end RAG pipeline in Java.
What you'll learn
Explain how retrieval-augmented generation reduces hallucinations and improves contextual accuracy
Compare Bag-of-Words and embedding-based text representations
Apply embeddings to semantic search and document retrieval
Store, filter, and retrieve document embeddings with ChromaDB
Manage document updates and batch ingestion for larger datasets
Combine BM25 and vector search to improve retrieval quality
Build an end-to-end RAG pipeline in Java using grounded, multi-chunk context
Advantages and disadvantages
Advantages
University courses you can audit for free, with lectures, readings and practice quizzes.
A verified certificate from the university if you pay for it.
Self-paced: start any time.
Disadvantages
Graded assignments and the certificate need the paid track.
Audit access can expire a few weeks after the course ends.
Learning is free, but the certificate costs money.
Some parts (graded work, certificate) are paid.
Some points apply to every course of this kind; see how we rank.
Free to audit
Free: Choose "Audit this course" when you enrol: lectures, readings and practice are free.
Paid: Graded assignments and the verified certificate (Certificate $55). Audit access may end after the course closes.
Before you start
Beginner: RAG Systems and Vector Databases (ChromaDB, Java)
Intermediate Java Programming
Instructor: Prof. Gary Gensler View the complete course: https://ocw.mit.edu/15-S12F18 This course is for students wishing to explore blockchain technology’s potential use - by entrepreneurs & incumbents - to change the world of money and finance. License: Creative Commons BY-NC-SA More information…
This course provides an introduction to mathematical modeling of computational problems. It covers the common algorithms, algorithmic paradigms, and data structures used to solve these problems. The course emphasizes the relationship between algorithms and programming, and introduces basic performa…
This is CS50P, CS50's Introduction to Programming with Python. Register for free at https://cs50.edx.org/python. Slides and source code at https://cs50.harvard.edu/python. Playlist at https://www.youtube.com/playlist?list=PLhQjrBD2T3817j24-GogXmWqO5Q5vYy0V. An introduction to programming using a la…
This is CS50, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming, for concentrators and non-concentrators alike, with or without prior programming experience. (Two thirds of CS50 students have never taken CS before.) This course teaches…
Instructor: Ana Bell View the complete course: https://ocw.mit.edu/courses/6-100l-introduction-to-cs-and-programming-using-python-fall-2022/ *Note: Lectures 6, 10 have been updated! This subject is aimed at students with little to no programming experience. It aims to provide students with an under…