GenEFT: Understanding Statics and Dynamics of Model Generalization via Effective Theory

Kavli Affiliate: Max Tegmark | First 5 Authors: David D. Baek, Ziming Liu, Max Tegmark, , | Summary: We present GenEFT: an effective theory framework for shedding light on the statics and dynamics of neural network generalization, and illustrate it with graph learning examples. We first investigate the generalization phase transition as data size increases, […]


Continue.. GenEFT: Understanding Statics and Dynamics of Model Generalization via Effective Theory

GenEFT: Understanding Statics and Dynamics of Model Generalization via Effective Theory

Kavli Affiliate: Max Tegmark | First 5 Authors: David D. Baek, Ziming Liu, Max Tegmark, , | Summary: We present GenEFT: an effective theory framework for shedding light on the statics and dynamics of neural network generalization, and illustrate it with graph learning examples. We first investigate the generalization phase transition as data size increases, […]


Continue.. GenEFT: Understanding Statics and Dynamics of Model Generalization via Effective Theory

Opening the AI black box: program synthesis via mechanistic interpretability

Kavli Affiliate: Max Tegmark | First 5 Authors: Eric J. Michaud, Isaac Liao, Vedang Lad, Ziming Liu, Anish Mudide | Summary: We present MIPS, a novel method for program synthesis based on automated mechanistic interpretability of neural networks trained to perform the desired task, auto-distilling the learned algorithm into Python code. We test MIPS on […]


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Introducing the BRAHMA simulation suite: Signatures of low mass black hole seeding models in cosmological simulations

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Aklant K. Bhowmick, Laura Blecha, Paul Torrey, Luke Zoltan Kelley, Rainer Weinberger | Summary: The first "seeds" of supermassive black holes (BH) can range from $sim10^2-10^6~M_{odot}$. However, the lowest mass seeds ($lesssim10^3 M_{odot}$) are inaccessible to most cosmological simulations due to resolution limitations. We present our new […]


Continue.. Introducing the BRAHMA simulation suite: Signatures of low mass black hole seeding models in cosmological simulations

Introducing the BRAHMA simulation suite: Signatures of low mass black hole seeding models in cosmological simulations

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Aklant K. Bhowmick, Laura Blecha, Paul Torrey, Luke Zoltan Kelley, Rainer Weinberger | Summary: The first "seeds" of supermassive black holes (BH) can range from $sim10^2-10^6~M_{odot}$. However, the lowest mass seeds ($lesssim10^3 M_{odot}$) are inaccessible to most cosmological simulations due to resolution limitations. We present our new […]


Continue.. Introducing the BRAHMA simulation suite: Signatures of low mass black hole seeding models in cosmological simulations

The TESS-Keck Survey. XIX. A Warm Transiting Sub-Saturn Mass Planet and a non-Transiting Saturn Mass Planet Orbiting a Solar Analog

Kavli Affiliate: George R. Ricker | First 5 Authors: Michelle L. Hill, Stephen R. Kane, Paul A. Dalba, Mason MacDougall, Tara Fetherolf | Summary: The Transiting Exoplanet Survey Satellite (TESS) continues to dramatically increase the number of known transiting exoplanets, and is optimal for monitoring bright stars amenable to radial velocity (RV) and atmospheric follow-up […]


Continue.. The TESS-Keck Survey. XIX. A Warm Transiting Sub-Saturn Mass Planet and a non-Transiting Saturn Mass Planet Orbiting a Solar Analog

Dramatic rebrightening of the type-changing stripped-envelope supernova SN 2023aew

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Yashvi Sharma, Jesper Sollerman, Shrinivas R. Kulkarni, Takashi J. Moriya, Steve Schulze | Summary: Multi-peaked supernovae with precursors, dramatic light-curve rebrightenings, and spectral transformation are rare, but are being discovered in increasing numbers by modern night-sky transient surveys like the Zwicky Transient Facility (ZTF). Here, we present […]


Continue.. Dramatic rebrightening of the type-changing stripped-envelope supernova SN 2023aew

Dramatic rebrightening of the type-changing stripped-envelope supernova SN 2023aew

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Yashvi Sharma, Jesper Sollerman, Shrinivas R. Kulkarni, Takashi J. Moriya, Steve Schulze | Summary: Multi-peaked supernovae with precursors, dramatic light-curve rebrightenings, and spectral transformation are rare, but are being discovered in increasing numbers by modern night-sky transient surveys like the Zwicky Transient Facility (ZTF). Here, we present […]


Continue.. Dramatic rebrightening of the type-changing stripped-envelope supernova SN 2023aew

First detection of polarization in X-rays for PSR B0540-69 and its nebula

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Fei Xie, Josephine Wong, Fabio La Monaca, Roger W. Romani, Jeremy Heyl | Summary: We report on X-ray polarization measurements of the extra-galactic Crab-like PSR B0540-69 and its Pulsar Wind Nebula (PWN) in the Large Magellanic Cloud (LMC), using a ~850 ks Imaging X-ray Polarimetry Explorer […]


Continue.. First detection of polarization in X-rays for PSR B0540-69 and its nebula

Convergence Tests of Self-Interacting Dark Matter Simulations

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Charlie Mace, Zhichao Carton Zeng, Annika H. G. Peter, Xiaolong Du, Shengqi Yang | Summary: Self-interacting dark matter (SIDM) theory predicts that dark matter halos experience core-collapse, a process where the halo’s inner region rapidly increases in density and decreases in size. The N-body simulations used to […]


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