Neural Slot Interpreters: Grounding Object Semantics in Emergent Slot Representations

• URL: http://arxiv.org/abs/2403.07887v1
• Date: Fri, 2 Feb 2024 12:37:23 GMT
• Title: Neural Slot Interpreters: Grounding Object Semantics in Emergent Slot Representations
• Authors: Bhishma Dedhia, Niraj K. Jha,
• Abstract summary: We present the Neural Slot Interpreter (NSI) that learns to ground and generate object semantics via slot representations. NSI is an XML-like programming language that uses simple syntax rules to organize the object semantics of a scene into object-centric program primitives.
• Score: 4.807052027638089
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Object-centric methods have seen significant progress in unsupervised decomposition of raw perception into rich object-like abstractions. However, limited ability to ground object semantics of the real world into the learned abstractions has hindered their adoption in downstream understanding applications. We present the Neural Slot Interpreter (NSI) that learns to ground and generate object semantics via slot representations. At the core of NSI is an XML-like programming language that uses simple syntax rules to organize the object semantics of a scene into object-centric program primitives. Then, an alignment model learns to ground program primitives into slots through a bi-level contrastive learning objective over a shared embedding space. Finally, we formulate the NSI program generator model to use the dense associations inferred from the alignment model to generate object-centric programs from slots. Experiments on bi-modal retrieval tasks demonstrate the efficacy of the learned alignments, surpassing set-matching-based predictors by a significant margin. Moreover, learning the program generator from grounded associations enhances the predictive power of slots. NSI generated programs demonstrate improved performance of object-centric learners on property prediction and object detection, and scale with real-world scene complexity.

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