MINER: Mining the Underlying Pattern of Modality-Specific Neurons in Multimodal Large Language Models
On the map: Multimodal LLMs / vision-language models → MLLM training and visual instruction tuning
Abstract (arXiv)
In recent years, multimodal large language models (MLLMs) have significantly advanced, integrating more modalities into diverse applications. However, the lack of explainability remains a major barrier to their use in scenarios requiring decision transparency. Current neuron-level explanation paradigms mainly focus on knowledge localization or language- and domain-specific analyses, leaving the exploration of multimodality largely unaddressed. To tackle these challenges, we propose MINER, a transferable framework for mining modality-specific neurons (MSNs) in MLLMs, which comprises four stages: (1) modality separation, (2) importance score calculation, (3) importance score aggregation, (4) modality-specific neuron selection. Extensive experiments across six benchmarks and two representative MLLMs show that (I) deactivating ONLY 2% of MSNs significantly reduces MLLMs performance (0.56 to 0.24 for Qwen2-VL, 0.69 to 0.31 for Qwen2-Audio), (II) different modalities mainly converge in the lower layers, (III) MSNs influence how key information from various modalities converges to the last token, (IV) two intriguing phenomena worth further investigation, i.e., semantic probing and semantic telomeres. The source code is available at this URL.
Key facts. Cited by 7 papers in the map (data through 7 Oct 2026). Placed in MLLM training and visual instruction tuning, one of 16 directions in Multimodal LLMs / vision-language models. Builds on 50 of its 62 references that are in the map. First posted on arXiv 7 Oct 2024.
Builds on
50 of 62 references.
Closest ancestors · 7
Same direction, newest first
- 2024Qwen2-VL: Enhancing Vision-Language Model's Perception of the World at Any Resolution18 Sep
- 2024MMNeuron: Discovering Neuron-Level Domain-Specific Interpretation in Multimodal Large Language Model17 Jun
- 2024A Concept-Based Explainability Framework for Large Multimodal Models12 Jun
- 2024AnyGPT: Unified Multimodal LLM with Discrete Sequence Modeling19 Feb
- 2023InternVL: Scaling up Vision Foundation Models and Aligning for Generic Visual-Linguistic Tasks21 Dec
- 2023Finding and Editing Multi-Modal Neurons in Pre-Trained Transformers13 Nov
- 2023MMBench: Is Your Multi-modal Model an All-around Player?12 Jul
Other references · 43
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- 2024The Llama 3 Herd of Modelscited by 14,192
- 2023Visual Instruction Tuningcited by 7,792
- 2020Measuring Massive Multitask Language Understandingcited by 7,768
- 2023BLIP-2: Bootstrapping Language-Image Pre-training with Frozen Image Encoders and Large Language Modelscited by 6,069
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- 2023Qwen-VL: A Versatile Vision-Language Model for Understanding, Localization, Text Reading, and Beyondcited by 2,179
- 2024Qwen2 Technical Reportcited by 2,076
- 2019Language Models as Knowledge Bases?cited by 1,922
31 more
- 2019Towards VQA Models That Can Readcited by 1,696
- 2020Transformer Feed-Forward Layers Are Key-Value Memoriescited by 1,307
- 2022Mass-Editing Memory in a Transformercited by 976
- 2024DeepSeek-VL: Towards Real-World Vision-Language Understandingcited by 718
- 2017Network Dissection: Quantifying Interpretability of Deep Visual Representationscited by 703
- 2023Qwen-Audio: Advancing Universal Audio Understanding via Unified Large-Scale Audio-Language Modelscited by 591
- 2021Knowledge Neurons in Pretrained Transformerscited by 590
- 2024Qwen2-Audio Technical Reportcited by 543
- 2024Scaling and evaluating sparse autoencoderscited by 530
- 2023SALMONN: Towards Generic Hearing Abilities for Large Language Modelscited by 492
- 2019A Survey on Explainable Artificial Intelligence (XAI): Towards Medical XAIcited by 403
- 2023Explainability for Large Language Models: A Surveycited by 331
- 2024Do Llamas Work in English? On the Latent Language of Multilingual Transformerscited by 275
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- 2023Pengi: An Audio Language Model for Audio Taskscited by 217
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- 2023On decoder-only architecture for speech-to-text and large language model integrationcited by 144
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- 2019Augmenting Self-attention with Persistent Memorycited by 92
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- 2023UrbanCLIP: Learning Text-enhanced Urban Region Profiling with Contrastive Language-Image Pretraining from the Webcited by 77
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- 2024SpeechVerse: A Large-scale Generalizable Audio Language Modelcited by 62
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Built on by
Citing papers per year: 2024: 1; 2025: 1; 2026: 5.
7 papers.
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- 2025Analyzing Finetuning Representation Shift for Multimodal LLMs Steeringcited by 15
- 2026Instruction Anchor: Dissecting the Mechanistic Dynamics of Modality Arbitrationcited by 6
- 2026Interpretable Debiasing of Vision-Language Models for Social Fairnesscited by 6
- 2026From Heads to Neurons: Causal Attribution and Steering in Multi-Task Vision-Language Modelscited by 0
- 2026Emotion Across Speech and Faces: Shared Affective Mechanisms in Multimodal Foundation Modelscited by 0
- 2026Who Is Left of Whom? Tracing Spatial Evidence and Role Binding in Relative-Position Reasoningcited by 0
- 2026Who Is Left of Whom? Tracing Spatial Evidence and Role Binding in Relative-Position Reasoning28 Sep 2026
- 2026Emotion Across Speech and Faces: Shared Affective Mechanisms in Multimodal Foundation Models17 Aug 2026
- 2026From Heads to Neurons: Causal Attribution and Steering in Multi-Task Vision-Language Models20 Apr 2026
- 2026Interpretable Debiasing of Vision-Language Models for Social Fairness27 Feb 2026
- 2026Instruction Anchor: Dissecting the Mechanistic Dynamics of Modality Arbitration3 Feb 2026
- 2025Analyzing Finetuning Representation Shift for Multimodal LLMs Steering6 Jan 2025
- 2024Explainable and Interpretable Multimodal Large Language Models: A Comprehensive Survey3 Dec 2024
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- 2025Modality-Aware Neuron Pruning for Unlearning in Multimodal Large Language Models
- 2026Correct When Paired, Wrong When Split: Decoupling and Editing Modality-Specific Neurons in MLLMs
- 2025Cross-Modal Unlearning via Influential Neuron Path Editing in Multimodal Large Language Models
- 2025Identifying Multi-modal Knowledge Neurons in Pretrained Transformers via Two-stage Filtering
- 2024Model Composition for Multimodal Large Language Models
- 2026Mixture of Probes: Learning from Privileged Modalities in Multimodal LLMs Through Probing
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