Multimodal models by topic¶
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Groups cover cross-modal objectives, connectors, and visual-token compression, with a separate entry per paper.
Joint code, video, and action generation¶
- 2026-10-21 · Agentic World Action Models (
aw0): Previous fragments become learned memory. Code normally conditions control without execution; optional hybrid executes skills only after validity, precondition and progress checks, otherwise falls back to direct actions. Not reproduced due to cost (review complete); research material only, no executable entry.
Low-resource speech translation evaluation¶
- 2026-04-17 · NaijaS2ST: A Multi-Accent Benchmark for Speech-to-Speech Translation in Low-Resource Nigerian Languages (
naijas2st): S2TT uses SSA-COMET/ChrF++; S2ST transcribes with OmnilingualASR before SSA-COMET. Text exact match is not a substitute. Not reproduced due to cost (review complete); research material only, no executable entry.
Frozen intermediate probes and verifier bootstrapping¶
- 2026-10-08 · Unsupervised Multimodal Reward Modeling (
umrm): A second experiment generates the policy's own candidates, creates success/failure pairs with a verifier, and retrains the head. Deployment utility improved while reward-benchmark scores fell.
Single-pass structured reranking¶
- 2026-10-20 · Multimodal Reranking Is a System One Decision (
system-one-rerank): Instead of generating a ranked list or training a separate pointwise reranker, the model scores each candidate by reading the probability of its letter label at the first answer position. The readout follows setwise and FIRST-style methods; the paper tests how this approach works zero-shot on images and visual documents, and whether text-only decision tuning transfers to visual reranking. Bounded component only; full experiments are not reproduced.
Image matching and sparse correspondence¶
- 2026-10-23 · FlexGlue: Sparse-to-Dense Feature Matching and Visual Disambiguation (
flexglue): It reads a local 3×3 neighborhood to avoid averaging distant modes, then refines subpixel locations with expected offsets from two axis-specific bins. A per-layer sigmoid co-visibility vote supports early rejection, trained with non-overlapping and flip-derived hard negatives rather than a gold-aware filter. Not reproduced due to cost (review complete); research material only, no executable entry.
Multi-instance editing and isolated attention¶
- 2026-06-30 · Editing Everything Everywhere All at Once (
mice): MICE isolates text groups in joint attention and uses a smooth spatial bias from instance masks to control visual interactions. This balances local binding and blending with the surrounding region without training a new editing model. Bounded component only; full experiments are not reproduced.
Contrastive pretraining and self-distillation¶
- 2025-02-20 · SigLIP 2: Multilingual Vision-Language Encoders with Improved Semantic Understanding, Localization, and Dense Features (
siglip2): SigLIP 2 extends SigLIP's pairwise sigmoid loss with captioning pretraining, global-local self-distillation, masked prediction, online data curation, and NaFlex dynamic resolution. This improves semantics, localization, dense features, and multilingual fairness.
Generative auxiliary supervision for better understanding¶
- 2026-08-12 · Generation as Auxiliary Supervision: Enhancing Visual Understanding at Zero Inference Overhead via Decoupled Embedding Prediction (
gas): Generation gradients improve shared visual features without directly changing the understanding-only upper layers. Generation can be removed entirely at deployment.
Unified action representations and conditional attention¶
- 2026-10-23 · UniAction: Unified Action Conditioning for World Models (
uniaction): UniAction represents actions as sparse elements with discrete semantic IDs and continuous time/space coordinates, looks up a shared codebook and delegates position encoding to the video backbone. A group-wide log bias corrects action mass without changing the relative action logits. Bounded component only; full experiments are not reproduced.
Visual tokens and cross-modal retrieval¶
- 2026-10-06 · EmbeddingGemma 2: Unified and Efficient Multimodal Representations (
embedding-gemma2): The technical paper reports 744M total parameters: 271M in the text backbone including the embedder, 167M in vision, and 305M in audio. The authors give 439M for the image–text path; these are rounded approximations. Checkpoint inference; not a reproduction of training. - 2026-09-15 · StackTok: Accelerating VLMs Inference with Budget-Adaptive Visual Token Selection (
stacktok): Use query relevance as the objective and coverage as a budget-dependent support constraint, progressively switching between the two selection criteria. - 2023-04-17 · Visual Instruction Tuning (
llava): Freeze a vision encoder and project its features to the LLM token space, then tune with GPT-4-generated multimodal instructions. - 2021-02-26 · Learning Transferable Visual Models From Natural Language Supervision (
clip): Independent image and text encoders project paired samples to the same unit sphere. A symmetric in-batch contrastive objective learns reusable zero-shot representations.
Visual token compression and dynamic evidence recovery¶
- 2026-10-08 · Look Back, Think Ahead: Visual Memory on Demand for Efficient Multimodal Reasoning (
vimod): TRACE uses causal hidden states from already-generated text to hold or replace the working set. Joint-KV restores original details on demand. - 2026-10-08 · V-CoLA: Vision Token Compression with Linear Attention (
vcola): Partition contiguous tokens by cumulative importance and merge them by weight; remove visual tokens at a deeper layer. See Section 3 and Figure 5. Method reference 1
Visual state-transition supervision¶
- 2026-10-08 · WOVEN: Weaving Visual World Modeling into Multimodal LLMs (
woven): The mechanism is training a multimodal LM with actual visual-transition supervision, not an image scorer. The corpus contains 36,076 four-option questions, 20 scene types, 5 action types, and 8 operations: 22,728 train, 2,508 validation, 6,228 ID test, 3,496 scene-OOD, and 1,116 state-perturbation items.
Visual evidence-constrained distillation¶
- 2026-10-09 · CV-OPD: Contrastive Vision On-policy Distillation (
cv-opd): Three constraints matter: the positive and negative teachers differ only in their crop and see the same student prefix; CDL uses a bounded-JSD margin; and DAG uses a strict greater-than-mean token threshold over the entire retained batch. A sample is retained only if at least one rollout is correct, and then all its rollouts are retained.
Unified video embedding evaluation¶
- 2026-06-12 · MVEB: Massive Video Embedding Benchmark (
mveb): Classification uses an 8-shot frozen logistic probe, retrieval uses cosine and nDCG@10, and VCQA uses accuracy over candidate answers. Video and audio variants are paired and only supported modalities are run. Not reproduced due to cost (review complete); research material only, no executable entry.
Video understanding and token compression¶
- 2026-09-15 · VideoMM: Adaptive Macro-Micro Inference for Efficient Video MLLMs (
videomm): Locate relevant regions on a low-resolution Macro Proxy, then activate high-fidelity Micro Tokens only if macro-level consensus is insufficient.
Cross-modal connectors and frozen backbones¶
- 2023-01-30 · BLIP-2: Bootstrapping Language-Image Pre-training with Frozen Image Encoders and Large Language Models (
blip2): Freeze the image encoder and LLM; train a lightweight Q-Former with learnable queries attending to vision tokens. First learn image–text representations, then project queries as a soft visual prompt for the frozen LLM.
Audio description and contrastive ranking¶
- 2026-09-01 · From Visual Cues to Spoken Narration: Rethinking Audio Description (
cue2narrate-drl): DRL applies negative log-sigmoid to the score difference divided by 0.5 and enters the full loss with weight 0.2. The offline negative-caption generator is frozen, but the current model's likelihood of the generated caption still backpropagates. Bounded component only; full experiments are not reproduced.
Efficient visual token compression¶
- 2025-04-07 · SmolVLM: Redefining small and efficient multimodal models (
smolvlm): Move neighboring spatial tokens into channels with pixel shuffle, then project into LM space with an MLP. The paper also studies long contexts, image tiling, learned position tokens and data mixtures for 256M/500M/2.2B image/video models.