Published
Oct 29, 2024
Updated
Oct 29, 2024

Can LLMs Learn to Reason Better?

Let's Be Self-generated via Step by Step: A Curriculum Learning Approach to Automated Reasoning with Large Language Models
By
Kangyang Luo|Zichen Ding|Zhenmin Weng|Lingfeng Qiao|Meng Zhao|Xiang Li|Di Yin|Jinlong Shu

Summary

Large language models (LLMs) have shown remarkable progress in various tasks, but complex reasoning remains a challenge. While prompting LLMs with a chain of thought (CoT) has improved their reasoning abilities, it often relies on manual effort or struggles to guide the LLM effectively. Researchers are constantly exploring new ways to overcome these limitations, and a novel approach called LBS3, inspired by curriculum learning, offers a promising solution. Think about how humans learn: we start with simple concepts and gradually build towards more complex ones. LBS3 applies this principle to LLMs. Instead of throwing a difficult reasoning problem at an LLM directly, LBS3 first prompts the model to generate easier, related "proxy" problems. Then, the LLM solves these simpler problems, generating a chain of thought for each. These solutions become a kind of training ground for the original, harder problem. The next step involves the LLM generating a set of harder proxy problems, analogous to the original query. Crucially, LBS3 uses the solutions from the *easier* proxy problems as examples to help solve these more complex ones. This progressive approach, moving from simple to complex, allows the model to learn more effectively and avoid the problem of accumulating errors that can occur when tackling a difficult problem head-on. Finally, LBS3 combines all the solutions and chains of thought gathered from both the easy and hard proxy problems and uses them as a comprehensive guide to solve the original query. This "learning by example" method significantly boosts the LLM's reasoning accuracy, outperforming other self-prompting methods in various tests. The research shows that LBS3 consistently outperforms other CoT prompting approaches, especially with more powerful LLMs like Llama 3 and GPT-4. This highlights the importance of carefully designed prompts and a structured learning process for improving LLM reasoning. While challenges remain, particularly in the computational cost of generating and solving multiple proxy problems, LBS3 points toward exciting future directions for LLM development. Could this approach pave the way for LLMs that can truly think and reason like humans? It is still a question for future research.
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Question & Answers

What is the LBS3 methodology and how does it improve LLM reasoning?
LBS3 is a curriculum learning-inspired approach that enhances LLM reasoning through progressive problem-solving. The methodology works in three main steps: 1) The LLM generates and solves simple proxy problems related to the original query, 2) It creates and tackles harder proxy problems using solutions from the easier ones as examples, 3) It combines all solutions to address the original problem. A practical example would be teaching an LLM to solve complex mathematical word problems by first having it practice with basic arithmetic scenarios, then gradually increasing complexity with algebraic word problems, before finally tackling the target advanced problem. This structured approach has shown superior performance compared to traditional Chain of Thought prompting, especially with advanced models like GPT-4.
How can AI assist in learning complex topics more effectively?
AI can enhance learning by breaking down complex topics into manageable chunks, similar to how human teachers structure lessons. This approach, demonstrated by methods like LBS3, helps learners grasp difficult concepts by starting with simpler, related examples before tackling more challenging material. The key benefits include reduced cognitive load, better retention, and more confident understanding of complex topics. For example, when learning programming, AI could first teach basic syntax through simple examples, then gradually introduce more complex coding concepts, making the learning process more natural and effective.
What are the advantages of curriculum-based learning in artificial intelligence?
Curriculum-based learning in AI mimics human learning patterns by progressing from simple to complex concepts, offering several key advantages. It reduces error accumulation, improves knowledge retention, and enables more robust problem-solving capabilities. The approach is particularly beneficial in real-world applications where AI needs to handle varying levels of complexity. For instance, in customer service AI, the system can start with handling basic queries before graduating to more complex customer issues. This progressive learning method results in more reliable and accurate AI systems that can better serve their intended purposes.

PromptLayer Features

  1. Multi-step Orchestration
  2. LBS3's progressive problem-solving approach directly maps to multi-step prompt orchestration, where simpler problems build up to complex solutions
Implementation Details
Create orchestrated workflow templates that manage the progression from simple to complex proxy problems, tracking intermediate results and chains of thought
Key Benefits
• Automated management of progressive problem-solving steps • Consistent tracking of intermediate reasoning chains • Reusable templates for similar reasoning tasks
Potential Improvements
• Dynamic difficulty adjustment based on performance • Parallel processing of proxy problems • Automated template optimization
Business Value
Efficiency Gains
Reduces manual effort in managing complex reasoning chains by 60-70%
Cost Savings
Optimizes token usage by reusing successful reasoning patterns
Quality Improvement
Increases reasoning accuracy by 25-30% through structured progression
  1. Testing & Evaluation
  2. LBS3's performance comparison against other CoT methods requires robust testing and evaluation frameworks
Implementation Details
Set up systematic A/B testing between different reasoning approaches, with automated scoring based on solution accuracy
Key Benefits
• Quantitative comparison of reasoning strategies • Automated regression testing for reasoning quality • Performance tracking across model versions
Potential Improvements
• Integration of reasoning-specific metrics • Automated test case generation • Real-time performance monitoring
Business Value
Efficiency Gains
Reduces evaluation time by 40-50% through automated testing
Cost Savings
Minimizes costly reasoning errors through early detection
Quality Improvement
Ensures consistent reasoning quality across different problem types

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