Unit 4.3 โ€” Working with Large Language Models

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Lyrics

[Verse 1]
When you need an AI to understand your task
The secret's in how you frame what you ask
Zero-shot means no examples, just direct
Few-shot gives samples for what you expect
Chain-of-Thought breaks reasoning step by step
Tree-of-Thought explores branches you've kept
System prompts set the persona and tone
Teaching language models how to respond on their own

[Chorus]
Large language models, powerful and bright
Prompt them well and they'll get it right
Fine-tune with LoRA when you need more
RAG brings knowledge from your data store
Evaluate outputs, measure what's true
LLMs are waiting to work for you

[Verse 2]
When basic prompting isn't quite enough
Fine-tuning helps when the task gets tough
Full fine-tuning updates every weight
But that's expensive, so don't hesitate
To try LoRA, low-rank adaptation
QLoRA too for parameter conservation
Adapters add modules, keep the base intact
While RLHF learns from human feedback

[Chorus]
Large language models, powerful and bright
Prompt them well and they'll get it right
Fine-tune with LoRA when you need more
RAG brings knowledge from your data store
Evaluate outputs, measure what's true
LLMs are waiting to work for you

[Bridge]
RAG retrieves then generates with context
Chunks your documents, embeds the text
Reranking finds the most relevant parts
While evaluation shows how well it starts
MMLU and HumanEval test the skill
GPQA challenges, LLM-as-judge will
Red teaming finds the weaknesses and flaws
Quality control for AI's cause

[Verse 3]
Build your RAG system piece by piece
LangChain and LlamaIndex help increase
Your document corpus understanding deep
With metrics tracking what your models reap
Chunking strategies split your data right
Embedding models turn text into sight
Vector databases store the representations
Ready for retrieval in conversations

[Chorus]
Large language models, powerful and bright
Prompt them well and they'll get it right
Fine-tune with LoRA when you need more
RAG brings knowledge from your data store
Evaluate outputs, measure what's true
LLMs are waiting to work for you

[Outro]
From zero-shot prompts to fine-tuned dreams
RAG systems and evaluation schemes
Master these techniques, you'll lead the way
In the language model revolution today

โ† Unit 4.2 โ€” The Transformer Architecture | Unit 4.4 โ€” Agentic AI & Multi-Model Systems โ†’