Misspecification-robust amortised simulation-based inference using variational methods

Posted by klaurent Cambridge

Kavli Affiliate: Kaisey Mandel | Summary:Recent advances in neural density estimation have enabled powerful simulation-based inference (SBI) methods that can flexibly approximate Bayesian inference for intractable stochastic models. Although these methods have demonstrated reliable posterior estimation when the simulator accurately represents the underlying data generative process (DGP), recent work has shown that they perform poorly […]


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Robust variational neural posterior estimation for simulation-based inference

Posted by klaurent Cambridge

Kavli Affiliate: Kaisey Mandel| First 5 Authors: Matthew O’Callaghan, Matthew O’Callaghan, , , | Summary:Recent advances in neural density estimation have enabled powerful simulation-based inference (SBI) methods that can flexibly approximate Bayesian inference for intractable stochastic models. Although these methods have demonstrated reliable posterior estimation when the simulator accurately represents the underlying data generative process […]


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LM-Searcher: Cross-domain Neural Architecture Search with LLMs via Unified Numerical Encoding

Posted by klaurent Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Yuxuan Hu, Yuxuan Hu, , , | Summary: Recent progress in Large Language Models (LLMs) has opened new avenues for solving complex optimization problems, including Neural Architecture Search (NAS). However, existing LLM-driven NAS approaches rely heavily on prompt engineering and domain-specific tuning, limiting their practicality and scalability […]


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Interaction-driven quantum criticality in two-dimensional quadratic band crossing semimetals with time-reversal symmetry breaking

Posted by klaurent Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Yi-Kun Fang, Yi-Kun Fang, , , | Summary: We present a systematic investigation of all sixteen marginally relevant fermion-fermion interactions in two-dimensional time-reversal symmetry-breaking kagom’e semimetals hosting a quadratic band crossing point. Employing a momentum-shell renormalization group approach that treats every interaction on equal footing, we derive […]


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Hybrid-illumination multiplexed Fourier ptychographic microscopy with robust aberration correction

Posted by klaurent Caltech

Kavli Affiliate: Changhuei Yang | Summary:Fourier ptychographic microscopy (FPM) is a powerful computational imaging modality that achieves high space-bandwidth product imaging for biomedical samples. However, its adoption is limited by slow data acquisition due to the need for sequential measurements. Multiplexed FPM strategies have been proposed to accelerate imaging by activating multiple LEDs simultaneously, but […]


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The Light Echo of a High-Redshift Quasar mapped with Lyman-$α$ Tomography

Posted by klaurent MIT

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Anna-Christina Eilers, Anna-Christina Eilers, , , | Summary: Ultra-violet (UV) radiation from accreting black holes ionizes the intergalactic gas around early quasars, carving out highly ionized bubbles in their surroundings. Any changes in a quasar’s luminosity are therefore predicted to produce outward-propagating ionization gradients, affecting the […]


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JWST-TST DREAMS: NIRSpec/PRISM Transmission Spectroscopy of the Habitable Zone Planet TRAPPIST-1 e

Posted by klaurent MIT

Kavli Affiliate: Sara Seager | Summary:TRAPPIST-1 e is one of the very few rocky exoplanets that is both amenable to atmospheric characterization and that resides in the habitable zone of its star — located at a distance from its star such that it might, with the right atmosphere, sustain liquid water on its surface. Here, […]


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JWST-TST DREAMS: Secondary Atmosphere Constraints for the Habitable Zone Planet TRAPPIST-1 e

Posted by klaurent MIT

Kavli Affiliate: Sara Seager | Summary:The TRAPPIST-1 system offers one of the best opportunities to characterize temperate terrestrial planets beyond our own solar system. Within the TRAPPIST-1 system, planet e stands out as highly likely to sustain surface liquid water if it possesses an atmosphere. Recently, we reported the first JWST/NIRSpec PRISM transmission spectra of […]


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“Industrial-Scale” Black Hole Selection without a Satellite

Posted by klaurent Peking

Kavli Affiliate: Subo Dong | Summary:The forthcoming GRAVITY+ instrument promises to usher in an era of "industrial-scale" mass measurements of isolated black holes (BHs), with the potential to assemble a sample of many tens of BHs via interferometric microlensing over several years. A key challenge will be selecting interferometric follow-up targets from an order-of-magnitude larger […]


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MitoScribe single-cell molecular recorder logs graded signaling dynamics into mitochondrial DNA

Posted by dbos UCSF

Kavli Affiliate: Seth Shipman | Authors: Linhan Wang, Nikolaos Poulis, Deepak Srivastava and Seth Shipman | Summary: Genetically encoded DNA recorders convert transient biological events into stable genomic mutations, offering a means to reconstruct past cellular states. However, current approaches to log historical events by modifying genomic DNA have limited capacity to record the magnitude […]


Continue.. MitoScribe single-cell molecular recorder logs graded signaling dynamics into mitochondrial DNA