Neural Experts: Mixture of Experts for Implicit Neural Representations

Fuente: arXiv
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Hauptverfasser: Ben-Shabat, Yizhak, Koneputugodage, Chamin Hewa, Ramasinghe, Sameera, Gould, Stephen
Format: Preprint
Veröffentlicht: 2024
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author Ben-Shabat, Yizhak
Koneputugodage, Chamin Hewa
Ramasinghe, Sameera
Gould, Stephen
author_facet Ben-Shabat, Yizhak
Koneputugodage, Chamin Hewa
Ramasinghe, Sameera
Gould, Stephen
contents Implicit neural representations (INRs) have proven effective in various tasks including image, shape, audio, and video reconstruction. These INRs typically learn the implicit field from sampled input points. This is often done using a single network for the entire domain, imposing many global constraints on a single function. In this paper, we propose a mixture of experts (MoE) implicit neural representation approach that enables learning local piece-wise continuous functions that simultaneously learns to subdivide the domain and fit locally. We show that incorporating a mixture of experts architecture into existing INR formulations provides a boost in speed, accuracy, and memory requirements. Additionally, we introduce novel conditioning and pretraining methods for the gating network that improves convergence to the desired solution. We evaluate the effectiveness of our approach on multiple reconstruction tasks, including surface reconstruction, image reconstruction, and audio signal reconstruction and show improved performance compared to non-MoE methods.
format Preprint
id arxiv_https___arxiv_org_abs_2410_21643
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Neural Experts: Mixture of Experts for Implicit Neural Representations
Ben-Shabat, Yizhak
Koneputugodage, Chamin Hewa
Ramasinghe, Sameera
Gould, Stephen
Computer Vision and Pattern Recognition
Implicit neural representations (INRs) have proven effective in various tasks including image, shape, audio, and video reconstruction. These INRs typically learn the implicit field from sampled input points. This is often done using a single network for the entire domain, imposing many global constraints on a single function. In this paper, we propose a mixture of experts (MoE) implicit neural representation approach that enables learning local piece-wise continuous functions that simultaneously learns to subdivide the domain and fit locally. We show that incorporating a mixture of experts architecture into existing INR formulations provides a boost in speed, accuracy, and memory requirements. Additionally, we introduce novel conditioning and pretraining methods for the gating network that improves convergence to the desired solution. We evaluate the effectiveness of our approach on multiple reconstruction tasks, including surface reconstruction, image reconstruction, and audio signal reconstruction and show improved performance compared to non-MoE methods.
title Neural Experts: Mixture of Experts for Implicit Neural Representations
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2410.21643