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Main Authors: Schulte, David, Hamborg, Felix, Akbik, Alan
Format: Preprint
Published: 2024
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Online Access:https://arxiv.org/abs/2410.15148
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author Schulte, David
Hamborg, Felix
Akbik, Alan
author_facet Schulte, David
Hamborg, Felix
Akbik, Alan
contents Intermediate task transfer learning can greatly improve model performance. If, for example, one has little training data for emotion detection, first fine-tuning a language model on a sentiment classification dataset may improve performance strongly. But which task to choose for transfer learning? Prior methods producing useful task rankings are infeasible for large source pools, as they require forward passes through all source language models. We overcome this by introducing Embedding Space Maps (ESMs), light-weight neural networks that approximate the effect of fine-tuning a language model. We conduct the largest study on NLP task transferability and task selection with 12k source-target pairs. We find that applying ESMs on a prior method reduces execution time and disk space usage by factors of 10 and 278, respectively, while retaining high selection performance (avg. regret@5 score of 2.95).
format Preprint
id arxiv_https___arxiv_org_abs_2410_15148
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Less is More: Parameter-Efficient Selection of Intermediate Tasks for Transfer Learning
Schulte, David
Hamborg, Felix
Akbik, Alan
Computation and Language
Machine Learning
Intermediate task transfer learning can greatly improve model performance. If, for example, one has little training data for emotion detection, first fine-tuning a language model on a sentiment classification dataset may improve performance strongly. But which task to choose for transfer learning? Prior methods producing useful task rankings are infeasible for large source pools, as they require forward passes through all source language models. We overcome this by introducing Embedding Space Maps (ESMs), light-weight neural networks that approximate the effect of fine-tuning a language model. We conduct the largest study on NLP task transferability and task selection with 12k source-target pairs. We find that applying ESMs on a prior method reduces execution time and disk space usage by factors of 10 and 278, respectively, while retaining high selection performance (avg. regret@5 score of 2.95).
title Less is More: Parameter-Efficient Selection of Intermediate Tasks for Transfer Learning
topic Computation and Language
Machine Learning
url https://arxiv.org/abs/2410.15148