Multimodal models

Vision-language models, speech and cross-modal systems that read, look and listen in the same forward pass.

7,695 stories · RSS feed

arXiv AI
Oct 1

ChartDensity-Bench: Benchmarking MLLMs for Numerical Data Reconstruction under Visual Density

ChartDensity-Bench is a benchmark designed to evaluate multimodal large language models (MLLMs) on their ability to reconstruct structured numerical data from scientific charts that vary in visual density. The benchmark uses charts paired with source-level ground-truth data and systematically changes the number of simultaneously presented charts (k = 1, 3, 6, 9) to assess how density affects reconstruction performance. A multi‑dimensional evaluation framework measures structural reliability, reconstruction completeness, parseability, and numerical fidelity, revealing that numerical reconstruction generally worsens as visual density increases, with varying degrees of degradation across different models.

By Xinhe Wu, Yadong Jin
arXiv Computer Vision
Oct 1

Mutual Equilibrium: Multimodal Representation Learning through Reciprocal Feedback

The paper introduces MEQ, a mutual feedback architecture that iteratively refines two multimodal inputs into coupled embeddings, each embedding incorporating information from the other. By continuously exchanging information between the modalities, the model converges to a fixed point that improves representation quality. Experiments on classification and visual grounding tasks show that MEQ achieves competitive or superior performance compared to concatenation-based baselines, and qualitatively enhances visual grounding when paired with complementary modalities.

By Ho-min Park, Byungkon Kang
arXiv Computation and Language
Oct 1

TutlAit v1: a crowdsourced Moroccan Tamazight speech dataset with Arabic transcriptions and regional accent labels

The TutlAit v1 dataset is a crowdsourced corpus of Moroccan Tamazight speech paired with Modern Standard Arabic transcriptions and explicit regional accent labels. It contains 13,384 audio files (≈20.9 hours) collected via a web application, with volunteers contributing through text‑to‑audio and audio‑to‑text workflows, and includes additional segments from freely available media. The dataset covers Atlas, Souss, Rif, and Kabyle varieties, making it a valuable resource for speech recognition, translation, and accent identification in an under‑resourced language.

By Mohamed-Amine Chadi, Ezzahra Ait El Arbi, Ismail Khayoub, Aymane Fadili, Yassine Ennhili, Jadjigua Bouali, Hanane Inhid, Mohammed Ameksa, Hajar Mousannif
arXiv Computer Vision
Oct 1

KilometerVision: A New Frontier for Large-Scale Spatial Intelligence in VLMs

arXiv:2609.39588v1 Announce Type: new Abstract: We push the frontier of large-scale spatial intelligence in Vision-Language Models (VLMs) and introduce the first benchmark that probes geographical la...

By Aravindh Mahendran, Michael King, Matthew Koichi Grimes, Antoine Yang, Tyler Zhu, Joseph Heyward, Tengda Han, Shiry Ginosar, Chen Sun, Dima Damen, Simon Osindero, Noah Snavely, Simon Lynen, Jo\~ao Carreira, Viorica P\u{a}tr\u{a}ucean
arXiv AI
Oct 1

GroundAnything: Reconciling Parallel Decoding with Precise Visual Grounding at Flash Speed

GroundAnything is a 4‑B parameter grounding foundation model that combines autoregressive and diffusion approaches to achieve fast parallel decoding while maintaining precise visual grounding. By treating grounding as visual evidence extraction and using blockwise denoising, it allows spatial hypotheses to be generated in parallel and refined iteratively. The model outperforms existing state‑of‑the‑art methods on 30 grounding benchmarks, achieving 72.42% accuracy with its autoregressive variant and 61.75% with entropy‑guided decoding, while also offering significant speedups through optional self‑speculative decoding.

By Qize Yu, Lianrui Fan, Bowen Ping, Xini Ding, Zetian Song, Junbo Niu, Kaixuan Wang, Tianxing Chen, Yue Chen, Minghua He, Yuran Wang, Jie Huang, Haojun Zhang, Min Chen, Hao Li, Wenxuan Song, Ruihai Wu, Xianming Liu, Shilong Liu, Shuchang Zhou, Ping Luo, Shiyu Huang
arXiv AI
Oct 1

BayesNDE: Bayesian Generative Modeling for Neural Density Estimation

BayesNDE is a neural density estimator that uses Bayesian generative modeling to estimate densities without relying on invertible networks or Jacobian-determinant calculations. It constructs an adaptive proposal for each observation by inferring a sample-specific latent posterior, and then applies bridge sampling to combine proposal samples with separate posterior samples for density estimation. Experiments on synthetic datasets show improved density estimation and structure recovery, while real-world applications demonstrate better anomaly detection.

By Chenglin Li, Qiao Liu
arXiv AI
Oct 1

CollageAttack: Exploiting Cross-Modal Alignment Flaws in T2I Models through Spatial Text Composition

CollageAttack is a black‑box jailbreak that exploits cross‑modal alignment flaws in text‑to‑image models by shifting harmful semantics into the image plane. It combines context‑relevant scenes, scene‑grounded textual carriers, and spatially distributed text fragments to produce images that reveal hidden harmful meaning. Experiments on both open‑weight and commercial models show success rates up to 86.0%, outperforming the strongest baseline by 18.5 percentage points and consistently generating more harmful outputs while preserving the source intent.

By Zhiyi Mou, Yao Lu, Wangze Ni, Di Hong, Dakun Shen, Haoyang Li, Chen Jason Zhang, Alexander Zhou, Kui Ren