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What is Few-shot Prompting?

Few-shot learning is a prompting technique where you provide the AI with one or several small number of examples (typically 1-10) to demonstrate the desired pattern, format, or behavior before asking it to perform a similar task. This technique leverages the AI’s ability to recognize patterns and generalize from limited examples.

Why Use Few-shot Prompting?

  • Improved Accuracy: Examples help the AI understand exactly what you want
  • Consistent Format: Ensures outputs follow a specific structure
  • Reduced Ambiguity: Clear examples eliminate guesswork
  • Better Context Understanding: Shows the AI how to handle edge cases
  • Domain Adaptation: Helps AI adapt to specific domains or styles

Zero-shot vs Few-shot

Zero-shot prompting involves asking the AI to perform a task without any examples, relying solely on its pre-existing knowledge. Few-shot prompting, on the other hand, provides a few examples to guide the AI’s response. Few-shot learning is generally more effective for complex tasks where context and specific patterns are crucial.

One-shot vs Few-shot

One-shot prompting provides a single example to guide the AI, the idea behind one-shot learning is to show the AI how to perform a task with just one example.
All variants of few-shot prompting (zero-shot, one-shot, and few-shot) can be implemented in Latitude. The choice depends on the complexity of the task and the amount of guidance needed.

Basic Implementation in Latitude

Here’s a simple few-shot learning example for email classification:
Email Classification

Advanced Implementation with Variables

Let’s create a more sophisticated example that uses Latitude’s parameters system:
In this advanced example:
  1. Dynamic Content: We use templates ({{ variable }}) to insert parameters into the prompt.
  2. Templating Features: We demonstrate control structures like {{for item in items }} for arrays.
  3. Runtime Examples: The examples array parameter allows users to pass in any number of examples when calling the prompt.
This pattern makes your prompts more flexible and reusable across different use cases without creating separate prompts for each scenario. For more on parameters, see the Latitude Parameter Types documentation.

Multi-step Few-shot with Chains

Latitude’s chain feature allows you to create complex few-shot workflows:

Dynamic Few-shot with Conditional Logic

Use Latitude’s conditional features to adapt examples based on context:

Few-shot with Agent Collaboration

Combine few-shot learning with Latitude’s agent system for complex workflows:

Best Practices for Few-shot Prompting

Choose Representative Examples:
  • Cover different scenarios and edge cases
  • Include both positive and negative examples
  • Ensure examples match your target domain
  • Use diverse input formats when applicable
Example Quality:
  • Make examples clear and unambiguous
  • Include enough detail without being verbose
  • Show consistent formatting patterns
  • Demonstrate the reasoning process when needed
Optimal Structure:
  1. Task Description: Clear explanation of what you want
  2. Examples Section: 2-10 well-chosen examples
  3. Input Section: Where the new data goes
  4. Output Section: Where the response should go
Formatting Tips:
  • Use consistent separators between examples
  • Clearly label input and output sections
  • Include field names for structured outputs
  • Use markdown formatting for readability
Dynamic Examples:
  • Use Latitude variables to customize examples
  • Implement conditional logic for context-aware examples
  • Store example sets in prompt references for reusability
  • Allow users to provide their own examples when needed
Example with Variables:
Token Management:
  • Balance between example quantity and token efficiency
  • Use the most informative examples
  • Consider using shorter examples for simple tasks
  • Cache common example sets using prompt references
Model Selection:
  • Use more capable models (GPT-4) for complex few-shot tasks
  • Consider fine-tuning for repeated patterns
  • Adjust temperature based on creativity needs
  • Test with different model sizes

Advanced Techniques

Self-Improving Few-shot

Create prompts that can improve their own examples:

Cross-Domain Transfer

Use few-shot learning to transfer patterns across domains:

Common Pitfalls and Solutions

Avoid These Common Mistakes:
  • Too Many Examples: More isn’t always better; 3-7 examples are usually optimal
  • Inconsistent Formatting: Make sure all examples follow the same structure
  • Biased Examples: Include diverse scenarios to avoid model bias
  • Unclear Boundaries: Clearly separate examples from the actual task
Pro Tips:
  • Start with 2-3 examples and add more if needed
  • Test your few-shot prompts with edge cases
  • Use Latitude’s version control to iterate on example sets
  • Combine with other techniques like Chain-of-Thought for complex reasoning

Next Steps

Now that you understand few-shot learning, explore these related techniques: