Search Results for author: Fei Wei

Found 6 papers, 3 papers with code

Exploring Privacy and Fairness Risks in Sharing Diffusion Models: An Adversarial Perspective

no code implementations28 Feb 2024 Xinjian Luo, Yangfan Jiang, Fei Wei, Yuncheng Wu, Xiaokui Xiao, Beng Chin Ooi

We demonstrate that the sharer can execute fairness poisoning attacks to undermine the receiver's downstream models by manipulating the training data distribution of the diffusion model.

Fairness

MobileVLM V2: Faster and Stronger Baseline for Vision Language Model

1 code implementation6 Feb 2024 Xiangxiang Chu, Limeng Qiao, Xinyu Zhang, Shuang Xu, Fei Wei, Yang Yang, Xiaofei Sun, Yiming Hu, Xinyang Lin, Bo Zhang, Chunhua Shen

We introduce MobileVLM V2, a family of significantly improved vision language models upon MobileVLM, which proves that a delicate orchestration of novel architectural design, an improved training scheme tailored for mobile VLMs, and rich high-quality dataset curation can substantially benefit VLMs' performance.

AutoML Language Modelling

Lenna: Language Enhanced Reasoning Detection Assistant

1 code implementation5 Dec 2023 Fei Wei, Xinyu Zhang, Ailing Zhang, Bo Zhang, Xiangxiang Chu

To evaluate the reasoning capability of Lenna, we construct a ReasonDet dataset to measure its performance on reasoning-based detection.

World Knowledge

Cactus Mechanisms: Optimal Differential Privacy Mechanisms in the Large-Composition Regime

no code implementations25 Jun 2022 Wael Alghamdi, Shahab Asoodeh, Flavio P. Calmon, Oliver Kosut, Lalitha Sankar, Fei Wei

Since the optimization problem is infinite dimensional, it cannot be solved directly; nevertheless, we quantize the problem to derive near-optimal additive mechanisms that we call "cactus mechanisms" due to their shape.

Quantization

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