VertiBench: Advancing Feature Distribution Diversity in Vertical Federated Learning Benchmarks

• URL: http://arxiv.org/abs/2307.02040v3
• Date: Wed, 13 Mar 2024 08:06:37 GMT
• Title: VertiBench: Advancing Feature Distribution Diversity in Vertical Federated Learning Benchmarks
• Authors: Zhaomin Wu, Junyi Hou, Bingsheng He
• Abstract summary: This paper introduces two key factors affecting VFL performance - feature importance and feature correlation. We also introduce a real VFL dataset to address the deficit in image-image VFL scenarios.
• Score: 31.08004805380727
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Vertical Federated Learning (VFL) is a crucial paradigm for training machine learning models on feature-partitioned, distributed data. However, due to privacy restrictions, few public real-world VFL datasets exist for algorithm evaluation, and these represent a limited array of feature distributions. Existing benchmarks often resort to synthetic datasets, derived from arbitrary feature splits from a global set, which only capture a subset of feature distributions, leading to inadequate algorithm performance assessment. This paper addresses these shortcomings by introducing two key factors affecting VFL performance - feature importance and feature correlation - and proposing associated evaluation metrics and dataset splitting methods. Additionally, we introduce a real VFL dataset to address the deficit in image-image VFL scenarios. Our comprehensive evaluation of cutting-edge VFL algorithms provides valuable insights for future research in the field.

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