Zero-Shot CoT Prompting Technique Explained | Prompt Engineering Guide

Key Takeaways

hi everyone in this video I am going to explain the zero shot Chain of Thought prompting technique in detail you can find the notes for this video lecture in the book llm prompt engineering simplified which is free to access and read online although Co prompting enhances the reasoning abilities of llms the main drawback with Co prompting is the require M of examples with reasoning chains this is because generating reasoning chains manually is a laborious an expensive process zero shot coot prompting eliminates the requirement of handcrafted reasoning chains by adding the magical phrase let's think step by step this magical phrase encourages the llm to generate its own reasoning chains moreover zero shot coot prompting is versatile and task agnos this is because you need not generate and provide reasoning chains separately for each task all you have to do is to include the magical phrase let's think step by step for any task now let us see how zero shot coot prompting Works zero shot coot involves two steps reasoning extraction and answer extraction in the first step llm generates the reasoning steps based on the original prompt and the magic phrase instead of providing examples with detailed reasoning steps zot Co simply adds the magic phrase let's think step by step to the original prompt the phrase let's think step by step does all the magic the llm then generates its own reasoning steps based on its understanding of the prompt and then generates the answer in the Second Step the model generates the answer based on the original prompt magic phrase and the generated reasoning steps now let us see the pros of zero shot cot prompting technique the First Advantage is ease of use that is no need for examples with reasoning chains just to pend the magic phrase let's think step by step the second Advantage is flexibility that is similar to the coot prompting zero shot coot can be applied to various tasks and domains the third Advantage is enhance performance that is boosts llm reasoning on diverse tasks the fourth Advantage is increased transparency that is makes answers more transparent now let us see the cons of zero shot co prompting technique the first disadvantage is performance might be lower that is less effective than Co with examples the second disadvantage is less control that is users have less control over the lm's internal thought process because of lack of reasoning steps in the prompt to summarize zero shot co prompting doesn't require examples like coot prompting instead it instructs llms to solve the problem step by step just by including the phrase let's think step by step I hope you find this video informative like the video and subscribe to the channel so that you won't miss new video lectures see you in the next video lecture