SIGNALAI·May 26, 2026, 4:00 AMSignal75Medium term

Beyond Generative Priors: Minority Sampling with JEPA-Guided Diffusion

Source: arXiv cs.LG

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Beyond Generative Priors: Minority Sampling with JEPA-Guided Diffusion

arXiv:2605.24631v1 Announce Type: new Abstract: Minority sampling aims to generate low-density instances on a data manifold and is of central importance in applications such as medical diagnosis, anomaly detection, and creative AI. Existing approaches, however, define minority samples relative to generative priors learned from training data, confining rarity to model-specific notions that may poorly reflect real-world semantics. In this work, we propose a world-centric perspective on minority sampling, which defines rarity with respect to real-world priors rather than generator-induced densiti

Why this matters
Why now

The paper addresses current limitations in AI's ability to generate data that truly reflects real-world rarity, moving beyond mere generative priors.

Why it’s important

This research could significantly improve the reliability and applicability of AI in critical fields like medical diagnosis and anomaly detection by basing rarity on real-world semantics.

What changes

AI systems will be able to perform minority sampling based on 'world-centric' perspectives, potentially leading to more robust and less biased AI applications.

Winners
  • · Medical diagnosis AI developers
  • · Anomaly detection software providers
  • · Creative AI platforms
  • · Sectors requiring high-fidelity synthetic data
Losers
  • · AI models relying solely on generative priors for rarity
  • · Systems with poor minority class representation
  • · Applications with high false positive rates due to sampling bias
Second-order effects
Direct

Improved accuracy and trustworthiness of AI systems in identifying rare but critical conditions or events.

Second

Accelerated adoption of AI in highly sensitive domains where current methods are insufficient due to data scarcity challenges.

Third

Potentially democratized access to advanced AI capabilities for challenges previously limited by the availability of diverse, real-world minority data.

Editorial confidence: 85 / 100 · Structural impact: 60 / 100
Original report

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Read at arXiv cs.LG
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