collaborators

10 papers

cs.CV2026

Mitigating Diffusion Model Hallucinations with Dynamic Guidance

Kostas Triaridis, Alexandros Graikos, Aggelina Chatziagapi +2

Hallucinations in diffusion models are samples with structural inconsistencies that can emerge due to the excessive smoothing of the learned score function, which in turn leads to…

cs.LG2026

Why DDIM Hallucinates More Than DDPM: A Theoretical Analysis of Reverse Dynamics

Muhammad H. Ashiq, Samanyu Arora, Abhinav N. Harish +3

We theoretically study the hallucination phenomena in two canonical diffusion samplers: the stochastic Denoising Diffusion Probabilistic Model (DDPM) and the deterministic Denoisin…

cs.CV2026

Activation-Free Backbones for Image Recognition: Polynomial Alternatives within MetaFormer-Style Vision Models

Jeffrey Wang, Jonathan Gregory, Grigorios G. Chrysos

Modern vision backbones treat pointwise activations (e.g., ReLU, GELU) and exponential softmax as essential sources of nonlinearity, but we demonstrate they are not required within…

cs.LG2026

LJ-Bench: Ontology-Based Benchmark for U.S. Crime

Hung Yun Tseng, Wuzhen Li, Blerina Gkotse +1

The potential of Large Language Models (LLMs) to provide harmful information remains a significant concern due to the vast breadth of illegal queries they may encounter. Unfortunat…

cs.LG2026

Corrective Diffusion Language Models

Shuibai Zhang, Fred Zhangzhi Peng, Yiheng Zhang +2

While Diffusion Language Models (DLMs) are theoretically well-suited for iterative refinement due to their non-causal structure, they often fail to reliably revise incorrect tokens…

cs.LG2026

Towards Interpretability Without Sacrifice: Faithful Dense Layer Decomposition with Mixture of Decoders

James Oldfield, Shawn Im, Sharon Li +3

Multilayer perceptrons (MLPs) are an integral part of large language models, yet their dense representations render them difficult to understand, edit, and steer. Recent methods le…