Language as a Cognitive Tool to Imagine Goals in Curiosity-Driven Exploration

Kavli Affiliate: Peter Ford | First 5 Authors: Cédric Colas, Tristan Karch, Nicolas Lair, Jean-Michel Dussoux, Clément Moulin-Frier | Summary: Developmental machine learning studies how artificial agents can model the way children learn open-ended repertoires of skills. Such agents need to create and represent goals, select which ones to pursue and learn to achieve them. […]


Continue.. Language as a Cognitive Tool to Imagine Goals in Curiosity-Driven Exploration

Language as a Cognitive Tool to Imagine Goals in Curiosity-Driven Exploration

Kavli Affiliate: Peter Ford | First 5 Authors: Cédric Colas, Tristan Karch, Nicolas Lair, Jean-Michel Dussoux, Clément Moulin-Frier | Summary: Developmental machine learning studies how artificial agents can model the way children learn open-ended repertoires of skills. Such agents need to create and represent goals, select which ones to pursue and learn to achieve them. […]


Continue.. Language as a Cognitive Tool to Imagine Goals in Curiosity-Driven Exploration

On the Search for Feedback in Reinforcement Learning

Kavli Affiliate: Ran Wang | First 5 Authors: Ran Wang, Karthikeya S. Parunandi, Aayushman Sharma, Raman Goyal, Suman Chakravorty | Summary: The problem of Reinforcement Learning (RL) in an unknown nonlinear dynamical system is equivalent to the search for an optimal feedback law utilizing the simulations/ rollouts of the dynamical system. Most RL techniques search […]


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A Dark Matter Interpretation of Excesses in Multiple Direct Detection Experiments

Kavli Affiliate: Noah Kurinsky | First 5 Authors: , , , , | Summary: We present a novel unifying interpretation of excess event rates observed in several dark matter direct-detection experiments that utilize single-electron threshold semiconductor detectors. Despite their different locations, exposures, readout techniques, detector composition, and operating depths, these experiments all observe statistically significant […]


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The evidence for a spatially flat Universe

Kavli Affiliate: George Efstathiou | First 5 Authors: George Efstathiou, Steven Gratton, , , | Summary: We revisit the observational constraints on spatial curvature following recent claims that the Planck data favour a closed Universe. We use a new and statistically powerful Planck likelihood to show that the Planck temperature and polarization spectra are consistent […]


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Optimization of Software on High Performance Computing Platforms for the LUX-ZEPLIN Dark Matter Experiment

Kavli Affiliate: Maria Elena Monzani | First 5 Authors: Venkitesh Ayyar, Wahid Bhimji, Maria Elena Monzani, Andrew Naylor, Simon Patton | Summary: High Energy Physics experiments like the LUX-ZEPLIN dark matter experiment face unique challenges when running their computation on High Performance Computing resources. In this paper, we describe some strategies to optimize memory usage […]


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A Cross-Correlation Study of High-energy Neutrinos and Tracers of Large-Scale Structure

Kavli Affiliate: Eric Charles | First 5 Authors: Ke Fang, Arka Banerjee, Eric Charles, Yuuki Omori, | Summary: The origin of the bulk of the astrophysical neutrinos detected by the IceCube Observatory remains a mystery. Previous source-finding analyses compare the directions of IceCube events and individual sources in astrophysical catalogs. The source association method is […]


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The Case for Probe-class NASA Astrophysics Missions

Kavli Affiliate: Angela Olinto | First 5 Authors: Martin Elvis, Jon Arenberg, David Ballantyne, Mark Bautz, Charles Beichman | Summary: Astrophysics spans an enormous range of questions on scales from individual planets to the entire cosmos. To address the richness of 21st century astrophysics requires a corresponding richness of telescopes spanning all bands and all […]


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Packed Ultra-wideband Mapping Array (PUMA): Astro2020 RFI Response

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Emanuele Castorina, Simon Foreman, Dionysios Karagiannis, Adrian Liu, Kiyoshi W. Masui | Summary: The Packed Ultra-wideband Mapping Array (PUMA) is a proposed low-resolution transit interferometric radio telescope operating over the frequency range 200 – 1100MHz. Its rich science portfolio will include measuring structure in the universe […]


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