Papers › Multiscale Deep Equilibrium Models

Multiscale Deep Equilibrium Models

15 Jun 2020NeurIPS 2020 12arXiv:2006.08656archive 2025-07-28

Shaojie Bai, Vladlen Koltun, J. Zico Kolter

We propose a new class of implicit networks, the multiscale deep equilibrium model (MDEQ), suited to large-scale and highly hierarchical pattern recognition domains. An MDEQ directly solves for and backpropagates through the equilibrium points of multiple feature resolutions simultaneously, using implicit differentiation to avoid storing intermediate states (and thus requiring only O(1) memory consumption). These simultaneously-learned multi-resolution features allow us to train a single model on a diverse set of tasks and loss functions, such as using a single MDEQ to perform both image classification and semantic segmentation. We illustrate the effectiveness of this approach on two large-scale vision tasks: ImageNet classification and semantic segmentation on high-resolution images from the Cityscapes dataset. In both settings, MDEQs are able to match or exceed the performance of recent competitive computer vision models: the first time such performance and scale have been achieved by an implicit deep learning approach. The code and pre-trained models are at https://github.com/locuslab/mdeq .

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locuslab/mdeq officialmentioned in papermentioned on GitHubpytorch report
SinclairHudson/DeepEquilibrium mentioned on GitHubpytorch report
locuslab/deq mentioned on GitHubpytorch report
lufanma/ifr mentioned on GitHubpytorch report

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1ran · our draft was wrong
1ran · fixture could not drive it
8ran
4unverified

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BranchNet locuslab/mdeq/lib/models/mdeq_core.py official repository ran · metamorphic tier: deterministic fingerprinted MIT (permissive) · 16eed3f65715e8e9 · report
DownsampleModule locuslab/mdeq/lib/models/mdeq_core.py official repository ran · metamorphic tier: deterministic fingerprinted MIT (permissive) · 68194e5af1ed3376 · report
UpsampleModule locuslab/mdeq/lib/models/mdeq_core.py official repository ran MIT (permissive) · 2b22e865b09bfe0c · report
MDEQModule locuslab/mdeq/lib/models/mdeq_core.py official repository unverified MIT (permissive) · 96aa0f0d7c9dc48a · report
DEQ SinclairHudson/DeepEquilibrium/DEQ.py community (archive-listed) ran · metamorphic tier: deterministic no licence file found · pointer only · ecde83d001c2ad88 · report
DownsampleModule locuslab/deq/MDEQ-Vision/lib/models/mdeq_core.py community (archive-listed) ran fingerprinted MIT (permissive) · 94faf9823bec3580 · report
UpsampleModule locuslab/deq/MDEQ-Vision/lib/models/mdeq_core.py community (archive-listed) ran · metamorphic tier: deterministic MIT (permissive) · f945eaf4c694d1fe · report
WeightNorm locuslab/deq/MDEQ-Vision/lib/models/mdeq_core.py community (archive-listed) ran fingerprinted MIT (permissive) · 711a21f05476c8a1 · report
_norm locuslab/deq/MDEQ-Vision/lib/models/mdeq_core.py community (archive-listed) ran · fixture could not drive it fingerprinted MIT (permissive) · a09788a6b90f7c7c · report
analyze_broyden lufanma/ifr/lib/modules/deq2d.py community (archive-listed) ran no licence file found · pointer only · ed88fb917332b540 · report
weight_norm locuslab/deq/MDEQ-Vision/lib/models/mdeq_core.py community (archive-listed) ran · our draft was wrong MIT (permissive) · a27206c36724f1c4 · report
DEQFunc2d lufanma/ifr/lib/modules/deq2d.py community (archive-listed) unverified no licence file found · pointer only · 625bb3ec12707aaa · report
DEQModule2d lufanma/ifr/lib/modules/deq2d.py community (archive-listed) unverified no licence file found · pointer only · bf6157640e178703 · report
MDEQModule locuslab/deq/MDEQ-Vision/lib/models/mdeq_core.py community (archive-listed) unverified MIT (permissive) · 701031360acd0728 · report

Tasks

General ClassificationImage ClassificationSegmentationSemantic Segmentationimage-classification

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Image Classification ImageNet Multiscale DEQ (MDEQ-XL) Number of params 81M #771 of 1060 Archive leaderboard report
Image Classification ImageNet Multiscale DEQ (MDEQ-XL) Top 1 Accuracy 79.2% #771 of 1060 Archive leaderboard report
Semantic Segmentation Cityscapes val Multiscale DEQ (MDEQ-XL) mIoU 80.3% #54 of 99 Archive leaderboard report
Semantic Segmentation Cityscapes val Multiscale DEQ (MDEQ-large) mIoU 77.8% #63 of 99 Archive leaderboard report

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