NumeroLogic: Number Encoding for Enhanced LLMs' Numerical Reasoning

NumeroLogic: Number Encoding for Enhanced LLMs' Numerical Reasoning

30 Mar 2024 | Eli Schwartz, Leshem Choshen, Joseph Shtok, Sivan Doveh, Leonid Karlinsky, Assaf Arbelle
The paper "NumeroLogic: Number Encoding for Enhanced LLMs’ Numerical Reasoning" addresses the challenge of language models (LLMs) struggling with numerical data and arithmetic operations. The authors propose a novel approach called "NumeroLogic," which involves adding the count of digits before each number to improve the model's understanding and generation of numerical values. This method helps the model recognize the place value of digits more accurately and encourages a Chain of Thought (CoT) reasoning process, enhancing its numerical capabilities. The authors hypothesize that the textual representation of numbers is a significant bottleneck for LLMs, as they cannot infer the place value of digits until the entire number is processed. To address this, NumeroLogic adds a prefix indicating the number of digits, such as "2:42" instead of "42n." This approach is demonstrated to be effective through various experiments, including supervised training on arithmetic tasks and self-supervised causal language modeling. Experiments with small and large models (up to 7B parameters) show significant improvements in accuracy across different arithmetic tasks, including integer and floating-point operations. Additionally, NumeroLogic enhances general language understanding, as evidenced by performance boosts in the MMLU benchmark for tasks requiring numerical comprehension. The paper also includes ablation studies to validate the effectiveness of encoding both operands and results, as well as different encoding formats. The results consistently demonstrate that NumeroLogic significantly improves the numerical capabilities of LLMs without requiring architectural modifications, making it a versatile solution for enhancing numerical reasoning in various domains.The paper "NumeroLogic: Number Encoding for Enhanced LLMs’ Numerical Reasoning" addresses the challenge of language models (LLMs) struggling with numerical data and arithmetic operations. The authors propose a novel approach called "NumeroLogic," which involves adding the count of digits before each number to improve the model's understanding and generation of numerical values. This method helps the model recognize the place value of digits more accurately and encourages a Chain of Thought (CoT) reasoning process, enhancing its numerical capabilities. The authors hypothesize that the textual representation of numbers is a significant bottleneck for LLMs, as they cannot infer the place value of digits until the entire number is processed. To address this, NumeroLogic adds a prefix indicating the number of digits, such as "2:42" instead of "42n." This approach is demonstrated to be effective through various experiments, including supervised training on arithmetic tasks and self-supervised causal language modeling. Experiments with small and large models (up to 7B parameters) show significant improvements in accuracy across different arithmetic tasks, including integer and floating-point operations. Additionally, NumeroLogic enhances general language understanding, as evidenced by performance boosts in the MMLU benchmark for tasks requiring numerical comprehension. The paper also includes ablation studies to validate the effectiveness of encoding both operands and results, as well as different encoding formats. The results consistently demonstrate that NumeroLogic significantly improves the numerical capabilities of LLMs without requiring architectural modifications, making it a versatile solution for enhancing numerical reasoning in various domains.
Reach us at info@study.space