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Caifeng Shan

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Conference Open access Sep 2026

From Language to Segmentation: Collaborative Category-Guided Unsupervised Camouflaged Object Detection with SAM3

Camouflaged Object Detection (COD) aims to segment objects that are hidden within complex backgrounds. Due to the low visual contrast of camouflaged objects, annotations are costly, motivating unsupervised COD (UCOD) to eliminate labeling expenses. Most UCOD methods follow the “MLLMs + other foundation models + SAM” pa...

Hua-Feng Chen, Yueming Lyu, Caifeng Shan · 0 citations
#artificial intelligence Preprint Sep 2026

CoSec: Benchmarking Agent Security in Communities

LLM agents operate in persistent collaborative environments involving multiple users, communities, memories, files, and tools. Community boundaries may remain fixed or evolve with changes in membership, roles, composition, and relationships. Agents must complete legitimate tasks and prevent unauthorized disclosure of p...

Hao Chen, Wen-Hui Dong, Ye Chen et al. · 0 citations
#computer vision Preprint Aug 2026

MME-Safety: A Fine-grained Benchmark for Safety Evaluation of MLLMs

This work proposes MME-Safety, a rigorously verified benchmark featuring a unique four-dimensional annotation schema that categorizes risk scenarios, harm severity, and modality-specific stealth levels and introduces a hierarchical evaluation framework to assess fundamental response reliability, actual risk exposure, a...

Yi Shi, Yueming Lyu, Hao-Xiang Tan et al. · 0 citations
Preprint Aug 2026

PRMU: A Corpus-Free Benchmark for Person-Centric Knowledge Unlearning in Multimodal Large Language Models

This work introduces PRMU, a benchmark for evaluating corpus-free multimodal unlearning under realistic person-centric deletion requests, and introduces Similarity-Gated Projection Editing (SGPE), a lightweight corpus-free unlearning baseline with knowledge displacement, protected parameter-space editing, and locality-...

Hua-Feng Chen, Yueming Lyu, Ziyuan Chen et al. · 0 citations
Preprint Aug 2026

AURORA-LM: Autoencoding Unified Representation for Continuous-Latent Diffusion Language Modeling

AURORA-LM is introduced, a continuous-latent diffusion language model that separates the construction of a decodable text representation from the modeling of its distribution, and achieves the strongest performance among evaluated continuous and diffusion-based language models on OpenWebText free generation and XSum su...

Jiajun Liang, Yu-Ling Liao, Yu-Kang Cao et al. · 2 citations

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