Compressed models are NOT miniature versions of large models

Fuente: arXiv
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Main Authors: Rai, Rohit Raj, Pal, Rishant, Awekar, Amit
Format: Preprint
Published: 2024
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author Rai, Rohit Raj
Pal, Rishant
Awekar, Amit
author_facet Rai, Rohit Raj
Pal, Rishant
Awekar, Amit
contents Large neural models are often compressed before deployment. Model compression is necessary for many practical reasons, such as inference latency, memory footprint, and energy consumption. Compressed models are assumed to be miniature versions of corresponding large neural models. However, we question this belief in our work. We compare compressed models with corresponding large neural models using four model characteristics: prediction errors, data representation, data distribution, and vulnerability to adversarial attack. We perform experiments using the BERT-large model and its five compressed versions. For all four model characteristics, compressed models significantly differ from the BERT-large model. Even among compressed models, they differ from each other on all four model characteristics. Apart from the expected loss in model performance, there are major side effects of using compressed models to replace large neural models.
format Preprint
id arxiv_https___arxiv_org_abs_2407_13174
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Compressed models are NOT miniature versions of large models
Rai, Rohit Raj
Pal, Rishant
Awekar, Amit
Machine Learning
Information Retrieval
Large neural models are often compressed before deployment. Model compression is necessary for many practical reasons, such as inference latency, memory footprint, and energy consumption. Compressed models are assumed to be miniature versions of corresponding large neural models. However, we question this belief in our work. We compare compressed models with corresponding large neural models using four model characteristics: prediction errors, data representation, data distribution, and vulnerability to adversarial attack. We perform experiments using the BERT-large model and its five compressed versions. For all four model characteristics, compressed models significantly differ from the BERT-large model. Even among compressed models, they differ from each other on all four model characteristics. Apart from the expected loss in model performance, there are major side effects of using compressed models to replace large neural models.
title Compressed models are NOT miniature versions of large models
topic Machine Learning
Information Retrieval
url https://arxiv.org/abs/2407.13174