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arXiv 2212.02269cs.LGcs.CL
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联邦神经主题模型

Federated Neural Topic Models

Universidad Carlos III de Madrid(马德里卡洛斯三世大学)

Lorena Calvo-Bartolomé, Jerónimo Arenas-García

AI总结:

针对跨源数据主题建模的隐私问题,该研究提出基于最优神经主题模型的联邦实现方案,效果等效于集中式训练且可保护节点隐私,在多主题场景下优势显著。

摘要:

近年来,主题建模已成为一种用于组织、总结大规模文档集合或在其中检索特定模式的强大技术。然而,对来自不同来源的数据进行交叉分析时可能会引发隐私问题。联邦主题建模通过允许多个参与方在不共享自身数据的情况下联合训练主题模型,解决了这一问题。虽然目前已有若干针对经典主题模型的联邦近似方案,但尚未有研究探索其在神经主题模型上的应用。为填补这一空白,我们基于当前最优的神经主题模型实现方案,提出并分析了一种联邦实现方式,验证了当各节点文档的主题存在多样性且需要构建联合模型时,该方案的优势。在实际效果上,我们的方法与集中式模型训练等效,但能够保护节点的隐私。我们通过合成数据场景与真实数据场景开展实验,阐明了这种联邦场景的优势。

英文摘要:

Over the last years, topic modeling has emerged as a powerful technique for organizing and summarizing big collections of documents or searching for particular patterns in them. However, privacy concerns may arise when cross-analyzing data from different sources. Federated topic modeling solves this issue by allowing multiple parties to jointly train a topic model without sharing their data. While several federated approximations of classical topic models do exist, no research has been conducted on their application for neural topic models. To fill this gap, we propose and analyze a federated implementation based on state-of-the-art neural topic modeling implementations, showing its benefits when there is a diversity of topics across the nodes' documents and the need to build a joint model. In practice, our approach is equivalent to a centralized model training, but preserves the privacy of the nodes. Advantages of this federated scenario are illustrated by means of experiments using both synthetic and real data scenarios.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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