Hubble

Christopher Potts says Jing Huang’s Hubble model suite experiments use frequency, recency and hardness; hardness has comparatively low predictive value.

CP

NI

SB

15 Sources, 8d ago, updated 8d ago

Dot plot addressing whether memorized sequences can be predicted without training the full model. Headline: “Largely yes, with Frequency and Recency doing most of the work.” Four rows show AUC-ROC (0.5 = chance, 1.0 = perfect) for a linear predictor of verbatim extraction, one mark per Hubble model (1B or 8B params; 100B or 500B tokens). All three features: 0.82–0.94. Frequency alone: 0.81–0.93. Recency alone: 0.82–0.90. Hardness alone: 0.51–0.55, barely above chance. In every row the 1B/500B model scores lowest and the 1B/100B model highest. Footnote: held-out strings, mean of 5 seeds; Frequency = copies of the string, Recency = steps since last copy, Hardness = NLL on models that never saw it.

Science

Hubble spots a 10-sided atmospheric wave around Saturn’s south pole

NASA says this is the first large, regular-sided jet pattern observed in Saturn’s southern hemisphere.

NM

1 Source, 45d ago, first seen 45d ago

Science

Hubble reportedly spots a rare 10-sided wave around Saturn’s south pole

A user’s space-news roundup says scientists are watching the developing wave closely because shapes like it don’t appear often.

AN

1 Source, 46d ago, first seen 46d ago

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Hubble

Recent posts

NASA shares Hubble and Webb views of the Cat’s Head region for Halloween

NASA seeks commercial ideas for Hubble servicing

NASA shares Hubble and Webb views of a dust pillar nicknamed the Cat’s Head Nebula ahead of Halloween

NASA seeks industry input on possible Hubble orbit boost, servicing or controlled reentry

Hubble study finds nearby galaxies with the fastest winds let the smallest fraction of ionizing radiation escape

Three variables are claimed to predict verbatim memorization in language models

Hubble spots a 10-sided atmospheric wave around Saturn’s south pole

Hubble reportedly spots a rare 10-sided wave around Saturn’s south pole