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Potemkin Understanding in Large Language Models

★ ★ ★ ★ ☆

Paper Summary

Paperzilla title
LLMs: Great at Definitions, Not So Great at Actually Using Them!

The paper introduces the concept of "potemkin understanding" in LLMs, where models can correctly define concepts but fail to apply them accurately. This highlights a critical flaw in current LLM evaluation methods that rely on benchmark datasets designed for humans.

Explain Like I'm Five

Scientists found that computers can say what words mean but don't always know how to truly use them, like knowing "ball" but not how to play catch. This means our tests might make them seem smarter than they are.

Possible Conflicts of Interest

None identified

Identified Limitations

Limited Benchmark Dataset
The benchmark dataset, while extensive, is not exhaustive and could benefit from additional data encompassing a wider range of concepts and types of keystone questions for a more comprehensive identification of potemkins.
Simplified Keystone Sets
The reliance on single definition questions as keystones may not fully capture the nuances of understanding a concept, as keystones in reality could involve multiple questions demonstrating application.
Potentially Difficult 'Use' Tasks
The difficulty of the 'use' tasks in the benchmark is questioned, with a possibility that even humans might struggle with them, potentially confounding the potemkin analysis.
Lower Bound on Potemkin Rate
The automated procedure for evaluating potemkins only provides a lower bound and may not capture the full extent of the issue.
LLM Self-Grading Assumption
The approach assumes that LLMs can be used for self-grading, which may not always be reliable due to potential biases or limitations in model capabilities.

Rating Explanation

This paper introduces a novel and significant concept in LLM evaluation – "potemkin understanding." The proposed framework and empirical analyses are well-structured and provide compelling evidence for the prevalence of this phenomenon. While the methodology has some limitations (e.g., the lower-bound nature of the automated potemkin detection), the work opens important avenues for future research.

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File Information

Original Title: Potemkin Understanding in Large Language Models
Uploaded: July 08, 2025 at 12:10 PM
Privacy: Public