arXiv AI By Mohammad Zare, Pirooz Shamsinejadbabaki

ProtoSemImage: Image-Valued Prototypes with Deformable Row Alignment for Interpretable Document Classification

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ProtoSemImage proposes representing class prototypes as image-valued archetypes rather than vectors, using a four‑channel HSV space that encodes linguistic factors. The model learns a deformable row alignment between a document image and its archetype bank, enabling spatial template matching that highlights where and how an input diverges from its prototype. Experiments show that this image representation outperforms vector prototypes on a ten‑class task, while diagnostic tests reveal that the matching component, not the color compression, limits performance.

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at arXiv AI.

arXiv AI
Oct 27

ProtoEEG: Structured Prototype Alignment for EEG Visual Decoding

ProtoEEG introduces a prototype‑mediated framework for aligning EEG signals with visual data, using a shared 64‑prototype codebook to generate structured representations for retrieval and image generation. The method employs prototype contrast, distribution alignment, instance anchors, and diversity regularization to train the system, achieving state‑of‑the‑art performance on THINGS‑EEG2 and EEG‑ImageNet benchmarks. Ablation studies confirm that prototype contrast and identity preservation are critical for high accuracy, while prototype analyses reveal distributed assignments across the codebook.

By Kieren Yu, Chang Huang, Ziyang Liu, Kaishun Wu
arXiv AI
Jun 24

Evaluating the Interpretability of Sparse Autoencoders with Concept Annotations

arXiv:2606. 24716v1 Announce Type: cross Abstract: Sparse autoencoders (SAEs) are increasingly used to extract interpretable concepts from vision and vision language models, yet existing evaluation methods largely rely on proxy metrics or qualitative inspection rather than measuring semantic correspondence.

By Jonas Klotz, Cassio F. Dantas, Pallavi Jain, Diego Marcos, Beg\"um Demir
arXiv Machine Learning
Aug 3

Visual Distribution Anchoring for Efficient Prompt Tuning

arXiv:2607. 28967v1 Announce Type: cross Abstract: Prompt tuning adapts vision--language models with few trainable parameters, but existing approaches trade off efficiency and adaptation: static textual prompts can overfit source classes, image-conditioned prompts add per-instance computation, and multimodal tuning modifies the visual branch.

By Pouya Parsa, Raoof Zare Moayedi, Seongjin Choi
Hugging Face Trending Papers
Sep 8

Studying Image Tokenizers as Visual Languages in Unified Multimodal Models

The paper investigates image tokenizers as the visual language of unified multimodal models by creating a controlled autoregressive testbed that tracks task‑specific validation losses during multimodal continual pretraining across text, image, text‑to‑image, and image‑to‑text predictions. It shows that losses must be analyzed by task, that the loss–performance relationship varies with the token space, and that better reconstruction does not always lead to stronger downstream performance. The study also demonstrates how tokenizer design choices—such as discriminator use, semantic supervision, and vocabulary size—affect joint modeling and downstream results.