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Unmute the Patch Tokens: Rethinking Probing in Multi-Label Audio Classification
Announce Type: replace Abstract: Although probing frozen models has become a standard evaluation paradigm, self-supervised learning in audio defaults to fine-tuning when pursuing state-of-the-art on AudioSet. A key reason is that global pooling creates an information bottleneck causing linear probes to misrepresent the embedding quality: The $\texttt{cls}$-token discards crucial token information about dispersed, localized events in audio. This weakness is rooted in the mismatch between the...
LLMs Lean on Priors, Not Programming Language Semantics
Announce Type: replace Abstract: Recent work asks whether large language models (LLMs) condition their reasoning on explicit rules rather than statistical regularities from pretraining. Program execution provides a canonical instance: formal semantics define behavior through symbolic transition rules that can be systematically altered under distribution shift. We investigate whether LLMs can condition their reasoning on formal semantics through program execution and introduce...
How the body creates reliable antibodies out of biological chaos
How the body creates reliable antibodies out of biological chaos Sadie Harley Scientific Editor Robert Egan Associate Editor A new study tracking thousands of B cells across more than 100 germinal centers in mice reveals how the system consistently produces highly effective antibodies. The findings overturn longstanding ideas about how germinal centers function, revealing that they are far more selective than once thought, and challenges the idea that antibody improvement is driven mainly by...
The Congresswoman Who Got Trump’s Name Off the Kennedy Center
Three months ago, a 75-year-old lawmaker filed a complaint as part of an ongoing lawsuit in federal court, claiming that she had been unlawfully excluded from an upcoming board meeting that would determine the fate of the John F. Kennedy Center for the Performing Arts. It turned out that the invitation had landed in her spam folder—an admission that quickly became a political punch line, a real-life Veep episode in Washington politics. Today, the plaintiff—Representative Joyce Beatty—feels...