Towards Unsupervised Visual Reasoning: Do Off-The-Shelf Features Know How to Reason?

• URL: http://arxiv.org/abs/2212.10292v1
• Date: Tue, 20 Dec 2022 14:36:45 GMT
• Title: Towards Unsupervised Visual Reasoning: Do Off-The-Shelf Features Know How to Reason?
• Authors: Monika Wysocza\'nska, Tom Monnier, Tomasz Trzci\'nski, David Picard
• Abstract summary: We introduce a protocol to evaluate visual representations for the task of Visual Question Answering. In order to decouple visual feature extraction from reasoning, we design a specific attention-based reasoning module. We compare two types of visual representations, densely extracted local features and object-centric ones, against the performances of a perfect image representation using ground truth.
• Score: 30.16956370267339
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent advances in visual representation learning allowed to build an abundance of powerful off-the-shelf features that are ready-to-use for numerous downstream tasks. This work aims to assess how well these features preserve information about the objects, such as their spatial location, their visual properties and their relative relationships. We propose to do so by evaluating them in the context of visual reasoning, where multiple objects with complex relationships and different attributes are at play. More specifically, we introduce a protocol to evaluate visual representations for the task of Visual Question Answering. In order to decouple visual feature extraction from reasoning, we design a specific attention-based reasoning module which is trained on the frozen visual representations to be evaluated, in a spirit similar to standard feature evaluations relying on shallow networks. We compare two types of visual representations, densely extracted local features and object-centric ones, against the performances of a perfect image representation using ground truth. Our main findings are two-fold. First, despite excellent performances on classical proxy tasks, such representations fall short for solving complex reasoning problem. Second, object-centric features better preserve the critical information necessary to perform visual reasoning. In our proposed framework we show how to methodologically approach this evaluation.

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