AlignMamba: Enhancing Multimodal Mamba with Local and Global Cross-modal Alignment
On the map: State-space sequence models (S4, Mamba) → Vision Mamba backbones
Abstract (arXiv)
Cross-modal alignment is crucial for multimodal representation fusion due to the inherent heterogeneity between modalities. While Transformer-based methods have shown promising results in modeling inter-modal relationships, their quadratic computational complexity limits their applicability to long-sequence or large-scale data. Although recent Mamba-based approaches achieve linear complexity, their sequential scanning mechanism poses fundamental challenges in comprehensively modeling cross-modal relationships. To address this limitation, we propose AlignMamba, an efficient and effective method for multimodal fusion. Specifically, grounded in Optimal Transport, we introduce a local cross-modal alignment module that explicitly learns token-level correspondences between different modalities. Moreover, we propose a global cross-modal alignment loss based on Maximum Mean Discrepancy to implicitly enforce the consistency between different modal distributions. Finally, the unimodal representations after local and global alignment are passed to the Mamba backbone for further cross-modal interaction and multimodal fusion. Extensive experiments on complete and incomplete multimodal fusion tasks demonstrate the effectiveness and efficiency of the proposed method.
Key facts. Cited by 17 papers in the map (data through 7 Oct 2026). Placed in Vision Mamba backbones, one of 10 directions in State-space sequence models (S4, Mamba). Builds on 33 of its 61 references that are in the map. First posted on arXiv 1 Dec 2024.
Builds on
33 of 61 references.
Closest ancestors · 5
Same direction, newest first
- 2024EMMA: Empowering Multi-modal Mamba with Structural and Hierarchical Alignment8 Oct
- 2024MTMamba: Enhancing Multi-Task Dense Scene Understanding by Mamba-Based Decoders2 Jul
- 2024Cobra: Extending Mamba to Multi-Modal Large Language Model for Efficient Inference21 Mar
- 2024VL-Mamba: Exploring State Space Models for Multimodal Learning20 Mar
- 2024Pan-Mamba: Effective pan-sharpening with State Space Model19 Feb
Other references · 28
- 2017Attention Is All You Needcited by 59,932
- 2023Visual Instruction Tuningcited by 7,792
- 2023BLIP-2: Bootstrapping Language-Image Pre-training with Frozen Image Encoders and Large Language Modelscited by 6,069
- 2023Mamba: Linear-Time Sequence Modeling with Selective State Spacescited by 4,616
- 2019ViLBERT: Pretraining Task-Agnostic Visiolinguistic Representations for Vision-and-Language Taskscited by 2,219
- 2019LXMERT: Learning Cross-Modality Encoder Representations from Transformerscited by 1,548
- 2019VisualBERT: A Simple and Performant Baseline for Vision and Languagecited by 1,291
- 2021ViLT: Vision-and-Language Transformer Without Convolution or Region Supervisioncited by 1,224
- 2023Multimodal Chain-of-Thought Reasoning in Language Modelscited by 740
- 2019Multimodal Transformer for Unaligned Multimodal Language Sequencescited by 637
- 2021Combining Recurrent, Convolutional, and Continuous-time Models with Linear State-Space Layerscited by 607
- 2022On the Parameterization and Initialization of Diagonal State Space Modelscited by 418
16 more
- 2020MISA: Modality-Invariant and -Specific Representations for Multimodal Sentiment Analysiscited by 262
- 2016MOSI: Multimodal Corpus of Sentiment Intensity and Subjectivity Analysis in Online Opinion Videoscited by 193
- 2021Learning Modality-Specific Representations with Self-Supervised Multi-Task Learning for Multimodal Sentiment Analysiscited by 179
- 2016On Deep Multi-View Representation Learning: Objectives and Optimizationcited by 162
- 2018Found in Translation: Learning Robust Joint Representations by Cyclic Translations Between Modalitiescited by 149
- 2021Improving Multimodal Fusion with Hierarchical Mutual Information Maximization for Multimodal Sentiment Analysiscited by 130
- 2022GCNet: Graph Completion Network for Incomplete Multimodal Learning in Conversationcited by 86
- 2019Learning Relationships between Text, Audio, and Video via Deep Canonical Correlation for Multimodal Language Analysiscited by 82
- 2023Decoupled Multimodal Distilling for Emotion Recognitioncited by 76
- 2024Fusion-Mamba for Cross-modality Object Detectioncited by 67
- 2021Hybrid Contrastive Learning of Tri-Modal Representation for Multimodal Sentiment Analysiscited by 41
- 2023CLIP-VG: Self-paced Curriculum Adapting of CLIP for Visual Groundingcited by 35
- 2024MambaDFuse: A Mamba-based Dual-phase Model for Multi-modality Image Fusioncited by 35
- 2024HiVG: Hierarchical Multimodal Fine-grained Modulation for Visual Groundingcited by 31
- 2024Prompt-Driven Dynamic Object-Centric Learning for Single Domain Generalizationcited by 24
- 2024SAM as the Guide: Mastering Pseudo-Label Refinement in Semi-Supervised Referring Expression Segmentationcited by 17
Built on by
Citing papers per year: 2025: 10; 2026: 7.
17 papers.
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- 2025Signal: Selective Interaction and Global-local Alignment for Multi-Modal Object Re-Identificationcited by 4
- 2025Unlocking Multi-Modal Potentials for Link Prediction on Dynamic Text-Attributed Graphscited by 3
- 2025LIDAR: Lightweight Adaptive Cue-Aware Fusion Vision Mamba for Multimodal Segmentation of Structural Crackscited by 3
- 2025LocoMamba: Vision-Driven Locomotion via End-to-End Deep Reinforcement Learning with Mambacited by 3
- 2025Lightweight Quad Bayer HybridEVS Demosaicing via State Space Augmented Cross-Attentioncited by 2
- 2025ME-Mamba: Multi-Expert Mamba with Efficient Knowledge Capture and Fusion for Multimodal Survival Analysiscited by 2
- 2025ARPGNet: Appearance- and Relation-aware Parallel Graph Attention Fusion Network for Facial Expression Recognitioncited by 1
- 2026Walking Further: Semantic-aware Multimodal Gait Recognition Under Long-Range Conditionscited by 1
- 2026Enhance-then-Balance Modality Collaboration for Robust Multimodal Sentiment Analysiscited by 1
- 2025Vision-Proprioception Fusion with Mamba2 in End-to-End Reinforcement Learning for Motion Controlcited by 0
- 2025CPCLDETECTOR: Knowledge Enhancement and Alignment Selection for Chinese Patronizing and Condescending Language Detectioncited by 0
- 2025MultiFair: Multimodal Balanced Fairness-Aware Medical Classification with Dual-Level Gradient Modulationcited by 0
5 more
- 2026AlignMamba-2: Enhancing Multimodal Fusion and Sentiment Analysis with Modality-Aware Mambacited by 0
- 2026MFil-Mamba: Multi-Filter Scanning for Spatial Redundancy-Aware Visual State Space Modelscited by 0
- 2026Cross-Modal Coreference Alignment: Enabling Reliable Information Transfer in Omni-LLMscited by 0
- 2026CALM: Interpretable Cross-Modal Alignment for Biomarker Discovery from Unpaired Datacited by 0
- 2026CASS: Contribution-Aware Structured Sparsity for Model Mergingcited by 0
- 2026CASS: Contribution-Aware Structured Sparsity for Model Merging28 Sep 2026
- 2026CALM: Interpretable Cross-Modal Alignment for Biomarker Discovery from Unpaired Data2 Jul 2026
- 2026Enhance-then-Balance Modality Collaboration for Robust Multimodal Sentiment Analysis14 Apr 2026
- 2026Cross-Modal Coreference Alignment: Enabling Reliable Information Transfer in Omni-LLMs7 Apr 2026
- 2026MFil-Mamba: Multi-Filter Scanning for Spatial Redundancy-Aware Visual State Space Models20 Mar 2026
- 2026AlignMamba-2: Enhancing Multimodal Fusion and Sentiment Analysis with Modality-Aware Mamba19 Mar 2026
- 2026Walking Further: Semantic-aware Multimodal Gait Recognition Under Long-Range Conditions15 Mar 2026
- 2025ARPGNet: Appearance- and Relation-aware Parallel Graph Attention Fusion Network for Facial Expression Recognition27 Nov 2025
- 2025Signal: Selective Interaction and Global-local Alignment for Multi-Modal Object Re-Identification22 Nov 2025
- 2025MultiFair: Multimodal Balanced Fairness-Aware Medical Classification with Dual-Level Gradient Modulation30 Sep 2025
- 2025CPCLDETECTOR: Knowledge Enhancement and Alignment Selection for Chinese Patronizing and Condescending Language Detection23 Sep 2025
- 2025ME-Mamba: Multi-Expert Mamba with Efficient Knowledge Capture and Fusion for Multimodal Survival Analysis21 Sep 2025
5 more
- 2025Vision-Proprioception Fusion with Mamba2 in End-to-End Reinforcement Learning for Motion Control9 Sep 2025
- 2025LocoMamba: Vision-Driven Locomotion via End-to-End Deep Reinforcement Learning with Mamba16 Aug 2025
- 2025Lightweight Quad Bayer HybridEVS Demosaicing via State Space Augmented Cross-Attention8 Aug 2025
- 2025LIDAR: Lightweight Adaptive Cue-Aware Fusion Vision Mamba for Multimodal Segmentation of Structural Cracks30 Jul 2025
- 2025Unlocking Multi-Modal Potentials for Link Prediction on Dynamic Text-Attributed Graphs27 Feb 2025
- 2025LIDAR: Lightweight Adaptive Cue-Aware Fusion Vision Mamba for Multimodal Segmentation of Structural Crackscited by 3
- 2025LocoMamba: Vision-Driven Locomotion via End-to-End Deep Reinforcement Learning with Mambacited by 3
- 2025ME-Mamba: Multi-Expert Mamba with Efficient Knowledge Capture and Fusion for Multimodal Survival Analysiscited by 2
- 2025Vision-Proprioception Fusion with Mamba2 in End-to-End Reinforcement Learning for Motion Controlcited by 0
- 2026AlignMamba-2: Enhancing Multimodal Fusion and Sentiment Analysis with Modality-Aware Mambacited by 0
- 2026MFil-Mamba: Multi-Filter Scanning for Spatial Redundancy-Aware Visual State Space Modelscited by 0
- 2026MFil-Mamba: Multi-Filter Scanning for Spatial Redundancy-Aware Visual State Space Models20 Mar 2026
- 2026AlignMamba-2: Enhancing Multimodal Fusion and Sentiment Analysis with Modality-Aware Mamba19 Mar 2026
- 2025ME-Mamba: Multi-Expert Mamba with Efficient Knowledge Capture and Fusion for Multimodal Survival Analysis21 Sep 2025
- 2025Vision-Proprioception Fusion with Mamba2 in End-to-End Reinforcement Learning for Motion Control9 Sep 2025
- 2025LocoMamba: Vision-Driven Locomotion via End-to-End Deep Reinforcement Learning with Mamba16 Aug 2025
- 2025LIDAR: Lightweight Adaptive Cue-Aware Fusion Vision Mamba for Multimodal Segmentation of Structural Cracks30 Jul 2025
- 2025Signal: Selective Interaction and Global-local Alignment for Multi-Modal Object Re-Identificationcited by 4
- 2025Unlocking Multi-Modal Potentials for Link Prediction on Dynamic Text-Attributed Graphscited by 3
- 2025Lightweight Quad Bayer HybridEVS Demosaicing via State Space Augmented Cross-Attentioncited by 2
- 2025ARPGNet: Appearance- and Relation-aware Parallel Graph Attention Fusion Network for Facial Expression Recognitioncited by 1
- 2026Walking Further: Semantic-aware Multimodal Gait Recognition Under Long-Range Conditionscited by 1
- 2026Enhance-then-Balance Modality Collaboration for Robust Multimodal Sentiment Analysiscited by 1
- 2025CPCLDETECTOR: Knowledge Enhancement and Alignment Selection for Chinese Patronizing and Condescending Language Detectioncited by 0
- 2025MultiFair: Multimodal Balanced Fairness-Aware Medical Classification with Dual-Level Gradient Modulationcited by 0
- 2026Cross-Modal Coreference Alignment: Enabling Reliable Information Transfer in Omni-LLMscited by 0
- 2026CALM: Interpretable Cross-Modal Alignment for Biomarker Discovery from Unpaired Datacited by 0
- 2026CASS: Contribution-Aware Structured Sparsity for Model Mergingcited by 0
- 2026CASS: Contribution-Aware Structured Sparsity for Model Merging28 Sep 2026
- 2026CALM: Interpretable Cross-Modal Alignment for Biomarker Discovery from Unpaired Data2 Jul 2026
- 2026Enhance-then-Balance Modality Collaboration for Robust Multimodal Sentiment Analysis14 Apr 2026
- 2026Cross-Modal Coreference Alignment: Enabling Reliable Information Transfer in Omni-LLMs7 Apr 2026
- 2026Walking Further: Semantic-aware Multimodal Gait Recognition Under Long-Range Conditions15 Mar 2026
- 2025ARPGNet: Appearance- and Relation-aware Parallel Graph Attention Fusion Network for Facial Expression Recognition27 Nov 2025
- 2025Signal: Selective Interaction and Global-local Alignment for Multi-Modal Object Re-Identification22 Nov 2025
- 2025MultiFair: Multimodal Balanced Fairness-Aware Medical Classification with Dual-Level Gradient Modulation30 Sep 2025
- 2025CPCLDETECTOR: Knowledge Enhancement and Alignment Selection for Chinese Patronizing and Condescending Language Detection23 Sep 2025
- 2025Lightweight Quad Bayer HybridEVS Demosaicing via State Space Augmented Cross-Attention8 Aug 2025
- 2025Unlocking Multi-Modal Potentials for Link Prediction on Dynamic Text-Attributed Graphs27 Feb 2025
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