A Causal Adjustment Module for Debiasing Scene Graph Generation

• URL: http://arxiv.org/abs/2503.17862v1
• Date: Sat, 22 Mar 2025 20:44:01 GMT
• Title: A Causal Adjustment Module for Debiasing Scene Graph Generation
• Authors: Li Liu, Shuzhou Sun, Shuaifeng Zhi, Fan Shi, Zhen Liu, Janne Heikkilä, Yongxiang Liu,
• Abstract summary: We employ causal inference techniques to model the causality among skewed distributions.<n>Our method enables the composition of zero-shot relationships, thereby enhancing the model's ability to recognize such relationships.
• Score: 28.44150555570101
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: While recent debiasing methods for Scene Graph Generation (SGG) have shown impressive performance, these efforts often attribute model bias solely to the long-tail distribution of relationships, overlooking the more profound causes stemming from skewed object and object pair distributions. In this paper, we employ causal inference techniques to model the causality among these observed skewed distributions. Our insight lies in the ability of causal inference to capture the unobservable causal effects between complex distributions, which is crucial for tracing the roots of model bias. Specifically, we introduce the Mediator-based Causal Chain Model (MCCM), which, in addition to modeling causality among objects, object pairs, and relationships, incorporates mediator variables, i.e., cooccurrence distribution, for complementing the causality. Following this, we propose the Causal Adjustment Module (CAModule) to estimate the modeled causal structure, using variables from MCCM as inputs to produce a set of adjustment factors aimed at correcting biased model predictions. Moreover, our method enables the composition of zero-shot relationships, thereby enhancing the model's ability to recognize such relationships. Experiments conducted across various SGG backbones and popular benchmarks demonstrate that CAModule achieves state-of-the-art mean recall rates, with significant improvements also observed on the challenging zero-shot recall rate metric.

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