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ReCAST: Restoration-aware Cascaded Stage-wise Training for Obfuscated SMS Risk Classification

ReCAST distills a large teacher model's de-obfuscation ability into smaller models for robust classification of obfuscated Chinese SMS fraud messages.

The paper proposes ReCAST, a restoration-aware cascaded stage-wise training framework for classifying obfuscated Chinese SMS messages. It distills a large teacher model's de-obfuscation capability into a smaller deployable student by supervising obfuscated span detection, obfuscation type prediction, and text restoration, then uses the student for risk classification. On an internally constructed real-world Chinese SMS benchmark, ReCAST substantially outperforms directly trained baselines under obfuscation, targeting production latency and throughput constraints.

arXiv cs.CR · 11d agoResearch

Task-Directed Residual AddUNet:Perfect-Reconstruction Routing for Full-Rate Representations

Paper recasts additive U-Net skip structure as a perfect-reconstruction filter bank and adds full-rate residual routing for task-directed representations.

The work proves a constrained additive U-Net's survivor-skip structure is exactly equivalent to a critically sampled perfect-reconstruction filter bank, and removes complementary-subband restrictions via a full-rate formulation. A Residual Full-Rate PR architecture routes task-irrelevant or redundant structure away from the task pathway while guaranteeing exact reconstruction without invertible operators, a matched synthesis bank, or a learned decoder. On TIMIT, the front-end improves test PER from 28.60±2.09% to 25.76±0.41% with recognizer and training held fixed.

arXiv cs.AI / cs.LG / cs.CL · 1d agoAI research

Thorough reorganization at NSA will create five 'mission centers,' including cyber and AI

NSA is reorganizing into five mission centers covering China, cybersecurity, AI, combat support and global intelligence, with full capability targeted by January.

NSA Director Gen. Joshua Rudd announced a sweeping reorganization replacing existing directorates with five mission centers focused on China, cybersecurity, artificial intelligence, combat support, and global intelligence. A 30-day implementation clock has started, and the centers are expected to reach full operational capability by January. Officials acknowledge the rapid realignment will 'break things' in the agency's bureaucracy; this is the largest restructuring since the NSA21 effort roughly a decade ago, which was widely viewed as a failure.

The Record · 2d agoPolicy & legal

Anthropic built an economic model that frames its CEO's bleakest job forecasts as an outlier scenario

Anthropic published an economic model with three US economic scenarios through 2030, framing CEO Dario Amodei's bleakest job-loss forecasts as the outlier outcome.

Anthropic released an economic model outlining three scenarios for AI's impact on the US economy through 2030. The modest scenario resembles the internet's impact with stable wages, the middle scenario doubles growth while knowledge worker wages stagnate, and the extreme scenario projects 17.9% knowledge worker unemployment with labor's GDP share falling from 60% to 45%. CEO Dario Amodei's May 2025 warning of up to half of entry-level office jobs vanishing and 10-20% unemployment aligns with the extreme scenario, which the model treats as the least likely outcome.

The Decoder · 6d agoAI industry1