Core Concepts
The author proposes a novel CausalVLN framework based on causal learning to enhance the generalization capabilities of navigators by addressing biased associations and confounders in vision-and-language tasks.
Abstract
The content discusses the challenges faced by existing Vision-and-Language Navigation (VLN) methods due to spurious associations and biases, introducing the CausalVLN framework. It details the use of causal learning paradigms, backdoor adjustment methods, and iterative backdoor-based representation learning to improve navigation performance. The experimental results on various datasets demonstrate the effectiveness of the proposed approach in narrowing down the performance gap between seen and unseen environments.
The paper emphasizes the importance of understanding causal relationships in VLN tasks and proposes a structured causal model to address biases induced by confounders. By leveraging interventions on visual and linguistic modalities, unbiased feature representations are learned to enhance navigational agents' robustness across different environments. The study showcases significant advancements over previous state-of-the-art approaches through comprehensive experiments on popular VLN datasets.
Stats
𝑃𝑃 𝑌𝑌 = 𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑 𝒅𝒅𝒅𝒅(𝑋𝑋 = 𝑝𝑝𝑝𝒅)
𝐸 = 62%
𝐸 = 49%
𝐸 = 80%
𝐸 = 62%
𝐸 = 59%
...
Quotes
"Can we capture and model the underlying causal relationships in VLN?"
"Learn unbiased feature representations that enhance the robustness of navigational agents."
"Addressing biased associations and confounders in vision-and-language tasks."