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Fan Li

6 papers indexed

arxivcs.CVcs.AI2026-07-20

DecoyFace: Beyond Obfuscation via Controllable and Imperceptible Identity Misdirection for Privacy-Preserving Face Recognition

Zhihan Ren, Lijun He, Xinyao Wang, Xinzhu Fu, Fan Li

Split face recognition reduces client-side computation but exposes intermediate features to feature inversion attacks and unauthorized analysis by honest-but-curious (HBC) servers. Existing privacy-preserving face recognition methods mainly aim to resist unauthorized reconstructi…

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arxivcs.AIcs.CR2026-07-19

Learning-Driven Adaptive Audit Scheduling: A Sequential Decision Approach to Off-Chain Data Integrity

Changting Lin, Fan Li, Weihang Yu, Keyang He, Mingyuan Yan, Yourong Chen, et al.

We model cryptographic auditing of off-chain data as a Constrained MDP (CMDP) under partial observability: the storage node's hidden type and corruption state make the problem a POMDP, while a miss-rate ceiling rho imposes an explicit security constraint. We propose DRQN-CMDP, a…

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arxivstat.MEmath.STstat.ML2026-07-19

The Resolution of Causal Heterogeneity

Yuki Ohnishi, Fan Li

Causal subgroup analyses often report a small number of groups summarizing treatment effect heterogeneity, as if that number were a well-defined estimand. Outside genuinely latent class populations, however, a ``true'' subgroup count is model dependent rather than a population fu…

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arxivcs.CV2026-06-30

InstanceControl: Controllable Complex Image Generation without Instance Labeling

Xiaoyu Liu, Huan Wang, Fan Li, Zhixin Wang, Jiaqi Xu, Ming Liu, et al.

Controllable image generation methods, such as ControlNet, have demonstrated a remarkable capacity to introduce visual conditions(e.g., depth maps) to guide image generation. However, these methods often struggle with complex multi-instance scenes, frequently leading to attribute…

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arxivcs.CV2026-06-29

Illuminating Unified Multimodal Model for Free-form Interleaved Text-Image Generation

Chonghuinan Wang, Zhikai Chen, Chunwei Wang, Yecong Wan, Junwei Yang, Zhixin Wang, et al.

The advancement of generative AI models capable of producing text and image marks a critical step forward in the realm of multimodal intelligence, particularly for tasks involving the interleaving of both modalities. To advance this intelligence to the next stage, it is crucial f…

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arxivstat.MEstat.ML2026-06-27

Doubly cross-fit debiased machine learning of heterogeneous treatment effects under principal stratification

Jiaqi Tong, Fan Li

Principal stratification provides a foundational framework for causal inference with intermediate outcomes by defining causal effects within subpopulations, yet existing work has largely focused on average effects across strata rather than treatment effect heterogeneity within st…

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