All You Need to Know About Chain-of-Thought Prompting

wra sha
3 min readAug 29, 2024

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Chain of Thought Prompting

What Does Prompt Engineering Mean?

Prompt engineering creates clear and well-thought-out prompts that a generative AI model can easily understand. A prompt is a set of instructions that tells the AI what to do and what kind of response to give. It can include directions, background information, input data, and hints for the output. We can make AI models do many things with prompt engineering, from answering simple questions to generating complex creative texts. It relies on the AI’s ability to learn from the prompts given to it, known as in-context learning. Good prompt engineering helps AI models perform better on the tasks they are given. It involves techniques like zero-shot, few-shot, active, and chain-of-thought (CoT) prompting.

Chain of Thought Prompting [CoT]

Chain of thought prompting is a method where AI models are given a series of connected prompts that lead them through a logical sequence of ideas or reasoning. Instead of simply asking for an answer, these prompts encourage the model to explain its thought process.

The main goal of the chain of thought prompting is to help AI models follow a clear and organized line of thinking. By giving prompts in a logical order, programmers can guide the AI to produce more detailed and accurate results. This method imitates human thinking, helping AI to better understand and answer complex questions.

Rather than just showing the AI questions and answers, it also involves showing the reasoning behind the correct answers.

How to Use Chain of Thought Prompting

Here’s a simple way to use chain of thought prompting step-by-step:

Step 1: Define the task or goal.
Clearly state what you want the AI to do (e.g., summarizing, translating, answering questions).

For example: “I need to write a program that sorts a list of numbers in Python.”

Step 2: Break down the task.
Divide the task into smaller steps that need to be done one after the other.

For example: What will the input be? What should the output look like? Are there any special cases like empty lists or lists with duplicate numbers? What sorting method should be used? Should we write a simple plan first (pseudocode) before writing the actual code?

Step 3: Create a sequence of prompts.

Write a series of prompts that guide the AI through each step. Make sure the prompts are connected and build on each other to complete the task.

Prompt 1: “I need to write a program that sorts a list of numbers in Python.”

Prompt 2: “What should the sorted output be? A sorted list?”

Prompt 3: “Which sorting method will you use? A simple one like Bubble sort, or a faster one like Merge sort or Quick sort?”

Prompt 4: “Would you like to start by writing a simple plan (pseudocode) to outline the sorting process?”

Prompt 5: “Once the plan is ready, we can write the actual Python code. Should we start implementing the sorting algorithm?”

Step 4: Use the prompt sequence.
Use the sequence of prompts with your AI model, making sure it follows each step and remembers what was done in the previous steps.

Conclusion

Chain of thought prompting in large language models (LLMs) is a method that involves guiding the model through a series of related prompts. Unlike simple prompts that only ask for an answer, this technique encourages the model to explain its reasoning as it works toward a solution. By doing so, it helps the model think through problems step by step, similar to how a person might solve a complex problem by breaking it down into smaller parts.

This approach can enhance the model’s ability to understand the context and maintain a logical flow of information, leading to more accurate and coherent responses. When the model explains its thought process, it often produces better results because it’s not just focusing on the final answer, but also on how it reached that answer.

In essence, the chain of thought prompting helps LLMs by structuring their reasoning process, which can be particularly useful in tasks that require complex decision-making or detailed explanations. By encouraging the model to articulate its reasoning, this technique leverages the model’s strengths in processing and organizing information, resulting in outputs that are not only correct but also logically sound and contextually appropriate.

For more details: https://www.mercity.ai/blog-post/guide-to-chain-of-thought-prompting

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wra sha
wra sha

Written by wra sha

entertainer, movie hunter and app hunter

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