Enhancing Clinical Models with Pseudo Data for De-identification

Fuente: arXiv
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Main Authors: Landes, Paul, Chaise, Aaron J, Nandi, Tarak Nath, Madduri, Ravi K
Format: Preprint
Published: 2025
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author Landes, Paul
Chaise, Aaron J
Nandi, Tarak Nath
Madduri, Ravi K
author_facet Landes, Paul
Chaise, Aaron J
Nandi, Tarak Nath
Madduri, Ravi K
contents Many models are pretrained on redacted text for privacy reasons. Clinical foundation models are often trained on de-identified text, which uses special syntax (masked) text in place of protected health information. Even though these models have increased in popularity, there has been little effort in understanding the effects of training them on redacted text. In this work, we pretrain several encoder-only models on a dataset that contains redacted text and a version with replaced realistic pseudo text. We then fine-tuned models for the protected health information de-identification task and show how our methods significantly outperform previous baselines. The contributions of this work include: a) our novel, and yet surprising findings with training recommendations, b) redacted text replacements used to produce the pseudo dataset, c) pretrained embeddings and fine-tuned task specific models, and d) freely available pseudo training dataset generation and model source code used in our experiments.
format Preprint
id arxiv_https___arxiv_org_abs_2506_12674
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Enhancing Clinical Models with Pseudo Data for De-identification
Landes, Paul
Chaise, Aaron J
Nandi, Tarak Nath
Madduri, Ravi K
Computation and Language
Many models are pretrained on redacted text for privacy reasons. Clinical foundation models are often trained on de-identified text, which uses special syntax (masked) text in place of protected health information. Even though these models have increased in popularity, there has been little effort in understanding the effects of training them on redacted text. In this work, we pretrain several encoder-only models on a dataset that contains redacted text and a version with replaced realistic pseudo text. We then fine-tuned models for the protected health information de-identification task and show how our methods significantly outperform previous baselines. The contributions of this work include: a) our novel, and yet surprising findings with training recommendations, b) redacted text replacements used to produce the pseudo dataset, c) pretrained embeddings and fine-tuned task specific models, and d) freely available pseudo training dataset generation and model source code used in our experiments.
title Enhancing Clinical Models with Pseudo Data for De-identification
topic Computation and Language
url https://arxiv.org/abs/2506.12674