The Curse of Popularity: Popular Entities have Catastrophic Side Effects when Deleting Knowledge from Language Models

Fuente: arXiv
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Autori principali: Takahashi, Ryosuke, Kamoda, Go, Heinzerling, Benjamin, Sakaguchi, Keisuke, Inui, Kentaro
Natura: Preprint
Pubblicazione: 2024
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author Takahashi, Ryosuke
Kamoda, Go
Heinzerling, Benjamin
Sakaguchi, Keisuke
Inui, Kentaro
author_facet Takahashi, Ryosuke
Kamoda, Go
Heinzerling, Benjamin
Sakaguchi, Keisuke
Inui, Kentaro
contents Language models (LMs) encode world knowledge in their internal parameters through training. However, LMs may learn personal and confidential information from the training data, leading to privacy concerns such as data leakage. Therefore, research on knowledge deletion from LMs is essential. This study focuses on the knowledge stored in LMs and analyzes the relationship between the side effects of knowledge deletion and the entities related to the knowledge. Our findings reveal that deleting knowledge related to popular entities can have catastrophic side effects. Furthermore, this research is the first to analyze knowledge deletion in models trained on synthetic knowledge graphs, indicating a new direction for controlled experiments.
format Preprint
id arxiv_https___arxiv_org_abs_2406_06032
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The Curse of Popularity: Popular Entities have Catastrophic Side Effects when Deleting Knowledge from Language Models
Takahashi, Ryosuke
Kamoda, Go
Heinzerling, Benjamin
Sakaguchi, Keisuke
Inui, Kentaro
Computation and Language
Language models (LMs) encode world knowledge in their internal parameters through training. However, LMs may learn personal and confidential information from the training data, leading to privacy concerns such as data leakage. Therefore, research on knowledge deletion from LMs is essential. This study focuses on the knowledge stored in LMs and analyzes the relationship between the side effects of knowledge deletion and the entities related to the knowledge. Our findings reveal that deleting knowledge related to popular entities can have catastrophic side effects. Furthermore, this research is the first to analyze knowledge deletion in models trained on synthetic knowledge graphs, indicating a new direction for controlled experiments.
title The Curse of Popularity: Popular Entities have Catastrophic Side Effects when Deleting Knowledge from Language Models
topic Computation and Language
url https://arxiv.org/abs/2406.06032