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Overview

How can we enhance a model’s understanding of a query?

Re2 (Re-Reading) is a technique that asks the model to read the question again.

Re-Reading Prompting

Prompt Template:

  • Read the question again: {query}
  • {critical thinking prompt}

A common critical thinking prompt is: “Let’s think step by step.”

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Example

<?php

$loader = require 'vendor/autoload.php';
$loader->add('Cognesy\\Instructor\\', __DIR__ . '../../src/');

use Cognesy\Instructor\Instructor;
use Cognesy\Instructor\Schema\Attributes\Description;

class Response {
    #[Description("Repeat user's query.")]
    public string $query;
    #[Description("Let's think step by step.")]
    public string $thoughts;
    public int $answer;
}

class RereadAndRespond {
    public function __invoke(string $query) : Response {
        return (new Instructor)->respond(
            messages: $query,
            responseModel: Response::class,
        );
    }
}

$response = (new RereadAndRespond)(
    query: <<<QUERY
        Roger has 5 tennis balls. He buys 2 more cans of tennis balls.
        Each can has 3 tennis balls.
        How many tennis balls does he have now?
    QUERY,
);

echo "Answer:\n";
dump($response);
?>

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References

  1. Re-Reading Improves Reasoning in Large Language Models
Generate Follow-Up QuestionsSimulate a Perspective