Using a Cross-Task Grid of Linear Probes to Interpret CNN Model Predictions On Retinal Images

Kavli Affiliate: Michael P. Brenner | First 5 Authors: Katy Blumer, Subhashini Venugopalan, Michael P. Brenner, Jon Kleinberg, | Summary: We analyze a dataset of retinal images using linear probes: linear regression models trained on some "target" task, using embeddings from a deep convolutional (CNN) model trained on some "source" task as input. We use […]


Continue.. Using a Cross-Task Grid of Linear Probes to Interpret CNN Model Predictions On Retinal Images

Using a Cross-Task Grid of Linear Probes to Interpret CNN Model Predictions On Retinal Images

Kavli Affiliate: Michael P. Brenner | First 5 Authors: Katy Blumer, Subhashini Venugopalan, Michael P. Brenner, Jon Kleinberg, | Summary: We analyze a dataset of retinal images using linear probes: linear regression models trained on some "target" task, using embeddings from a deep convolutional (CNN) model trained on some "source" task as input. We use […]


Continue.. Using a Cross-Task Grid of Linear Probes to Interpret CNN Model Predictions On Retinal Images

Identifying Majorana vortex modes via non-local transport

Kavli Affiliate: Joel E. Moore | First 5 Authors: Björn Sbierski, Max Geier, An-Ping Li, Matthew Brahlek, Robert G. Moore | Summary: The combination of two-dimensional Dirac surface states with s-wave superconductivity is expected to generate localized topological Majorana zero modes in vortex cores. Putative experimental signatures of these modes have been reported for heterostructures […]


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Probing Protoplanetary Disk Winds with C II Absorption

Kavli Affiliate: Gregory J. Herczeg | First 5 Authors: Ziyan Xu, Gregory J. Herczeg, Christopher M. Johns-Krull, Kevin France, | Summary: We present an analysis of wind absorption in the C II ${lambda}1335$ doublet towards 40 classical T Tauri stars with archival far-ultraviolet (FUV) spectra obtained by the Hubble Space Telescope. Absorption features produced by […]


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Broadband X-Ray Observations of the 2018 Outburst of the Changing-Look Active Galactic Nucleus NGC 1566

Kavli Affiliate: Claudio Ricci | First 5 Authors: Arghajit Jana, Neeraj Kumari, Prantik Nandi, Sachindra Naik, Arka Chatterjee | Summary: We study the nature of the changing-look Active Galactic Nucleus NGC 1566 during its June 2018 outburst. During the outburst, the X-ray intensity of the source rises up to ~25-30 times compared to its quiescent […]


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The initial charge separation step in oxygenic photosynthesis

Kavli Affiliate: Graham R. Fleming | First 5 Authors: Yusuke Yoneda, Eric A. Arsenault, Kaydren Orcutt, Masakazu Iwai, Graham R. Fleming | Summary: Photosystem II is crucial for life on Earth as it provides oxygen as a result of photoinduced electron transfer and water splitting reactions. The excited state dynamics of the photosystem II-reaction center […]


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A Resolution-Adaptive 8 mm$^text{2}$ 9.98 Gb/s 39.7 pJ/b 32-Antenna All-Digital Spatial Equalizer for mmWave Massive MU-MIMO in 65nm CMOS

Kavli Affiliate: Alyosha Molnar | First 5 Authors: Oscar Castañeda, Zachariah Boynton, Seyed Hadi Mirfarshbafan, Shimin Huang, Jamie C. Ye | Summary: All-digital millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO) receivers enable extreme data rates but require high power consumption. In order to reduce power consumption, this paper presents the first resolution-adaptive all-digital receiver ASIC […]


Continue.. A Resolution-Adaptive 8 mm$^text{2}$ 9.98 Gb/s 39.7 pJ/b 32-Antenna All-Digital Spatial Equalizer for mmWave Massive MU-MIMO in 65nm CMOS

Resolution-Adaptive All-Digital Spatial Equalization for mmWave Massive MU-MIMO

Kavli Affiliate: Alyosha Molnar | First 5 Authors: Oscar Castañeda, Seyed Hadi Mirfarshbafan, Shahaboddin Ghajari, Alyosha Molnar, Sven Jacobsson | Summary: All-digital basestation (BS) architectures for millimeter-wave (mmWave) massive multi-user multiple-input multiple-output (MU-MIMO), which equip each radio-frequency chain with dedicated data converters, have advantages in spectral efficiency, flexibility, and baseband-processing simplicity over hybrid analog-digital solutions. […]


Continue.. Resolution-Adaptive All-Digital Spatial Equalization for mmWave Massive MU-MIMO