Efficient Path Planning and Tracking for Multi-Modal Legged-Aerial Locomotion Using Integrated Probabilistic Road Maps (PRM) and Reference Governors (RG)

Posted by Caltech

Kavli Affiliate: Morteza Gharib | First 5 Authors: Eric Sihite, Benjamin Mottis, Paul Ghanem, Alireza Ramezani, Morteza Gharib | Summary: There have been several successful implementations of bio-inspired legged robots that can trot, walk, and hop robustly even in the presence of significant unplanned disturbances. Despite all of these accomplishments, practical control and high-level decision-making […]


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Abstract representations emerge naturally in neural networks trained to perform multiple tasks

Posted by klaurent Columbia

Kavli Affiliate: Stefano Fusi | Authors: W. Jeffrey Johnston and Stefano Fusi | Summary: Humans and other animals demonstrate a remarkable ability to generalize knowledge across distinct contexts and objects during natural behavior. We posit that this ability to generalize arises from a specific representational geometry, that we call abstract and that is referred to […]


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Can Carbon Fractionation Provide Evidence for Aerial Biospheres in the Atmospheres of Temperate Sub-Neptunes?

Posted by klaurent MIT

Kavli Affiliate: Sara Seager | First 5 Authors: Ana Glidden, Sara Seager, Jingcheng Huang, Janusz J. Petkowski, Sukrit Ranjan | Summary: The search for signs of life on other worlds has largely focused on terrestrial planets. Recent work, however, argues that life could exist in the atmospheres of temperate sub-Neptunes. Here, we evaluate the usefulness […]


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The Quadruple Image Configurations of Asymptotically Circular Gravitational Lenses

Posted by dbos MIT

Kavli Affiliate: Paul L. Schechter | First 5 Authors: Chirag Falor, Paul L. Schechter, , , | Summary: The quadruple image configurations of gravitational lenses with vanishing ellipticity are examined. Even though such lenses asymptotically approach circularity, the configurations are stable if the position of the source relative to the vanishing diamond caustic is held […]


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The Tianlai dish array low-z surveys forecasts

Posted by klaurent Chicago

Kavli Affiliate: Albert Stebbins | First 5 Authors: Olivier Perdereau, Réza Ansari, Albert Stebbins, Peter T. Timbie, Xuelei Chen | Summary: We present the science case for surveys with the Tianlai dish array interferometer tuned to the $left[ 1300, 1400 right] mathrm{MHz}$ frequency range. Starting from a realistic generation of mock visibility data according to […]


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Ensemble Clustering via Co-association Matrix Self-enhancement

Posted by klaurent Peking

Kavli Affiliate: Ran Wang | First 5 Authors: Yuheng Jia, Sirui Tao, Ran Wang, Yongheng Wang, | Summary: Ensemble clustering integrates a set of base clustering results to generate a stronger one. Existing methods usually rely on a co-association (CA) matrix that measures how many times two samples are grouped into the same cluster according […]


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The Temporal and Spatial Behaviors of CME Occurrence Rate at Different Latitudes

Posted by klaurent Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Jiaqi Lin, Feng Wang, Linhua Deng, Hui Deng, Ying Mei | Summary: The statistical study of the Coronal Mass Ejections (CMEs) is a hot topic in solar physics. To further reveal the temporal and spatial behaviors of the CMEs at different latitudes and heights, we analyzed the […]


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Improved Sensitivity for Space Domain Awareness Observations with the Murchison Widefield Array

Posted by klaurent Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Steve Prabu, Paul J Hancock, Xiang Zhang, Steven J Tingay, Torrance Hodgson | Summary: Our previously reported survey of the Low Earth Orbit (LEO) environment using the Murchison Widefield Array (MWA) detected over 70 unique Resident Space Objects (RSOs) over multiple passes, from 20 hours of observations […]


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Over-the-Air Federated Learning with Joint Adaptive Computation and Power Control

Posted by klaurent Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Haibo Yang, Peiwen Qiu, Jia Liu, Aylin Yener, | Summary: This paper considers over-the-air federated learning (OTA-FL). OTA-FL exploits the superposition property of the wireless medium, and performs model aggregation over the air for free. Thus, it can greatly reduce the communication cost incurred in communicating model […]


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