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How Deep Are Deep GPs, Really? A Sharp Threshold and a Non-Gaussian Limit for Compositional GPs
arXiv:2606.08218v1 Announce Type: new Abstract: Compositional priors describe the generic properties of layered functions in deep Bayesian models, where deep neural networks with random weights are a canonical example. In the wide-network limit, the prior is a Gaussian process with a depth-dependent kernel, and its behaviour as depth grows has been extensively studied through this kernel. Here, we study another case, where each layer itself is a vector valued Gaussian process, and our aim is...
Tests suggest Russian satellites can jam GPS on a continental scale
Russian satellites have been identified as the cause of mysterious, seconds-long bursts of GPS interference across Europe—a rare example of human-made GPS interference coming from space. But uncertainty still hangs over whether such interference is intentional and if it could be more powerfully weaponized as GPS jamming with continental reach in the future. The discovery came from an investigation detailed in a June 2 preprint paper by Todd Humphreys and his student Zach Clements at The...
Mystery GPS jammer in Iran becomes test for NASA satellites’ capabilities
NASA satellites have successfully demonstrated the ability to locate the approximate positions of GPS jammers, using an experiment involving a mysterious device in Iran. This capability could be valuable for monitoring high-risk areas for aircraft and ships navigating increasing global GPS interference. While the satellites cannot provide real-time or exact locations, identifying general areas of jamming could aid in flight and maritime planning.
'My husband's GPS tracker told me he'd had a crash - an hour later he was dead'
'My husband's GPS tracker told me he'd had a crash - an hour later he was dead' EXCLUSIVE: Paula Overton received an automated text message from her husband Ben’s Garmin watch as he cycled home from work - an hour before police knocked on her door to say he'd died in a fatal crash A grieving widow today told how her husband's GPS tracker sent her a message saying he'd had an accident - an hour before police arrived to tell her he was dead. Paula Overton, 32, received an automated text...
Dual Quaternion-Based Unscented Kalman Filter with Visual Inertial Odometry for Navigation in GPS-Denied Environments
Announce Type: new Abstract: Reliable navigation in GPS-denied environments remains a fundamental challenge in robotics, aerospace, and autonomous vehicle applications. This paper presents a Dual Quaternion-Based Unscented Kalman Filter (DQUKF) equipped with a Visual Inertial Odometry (VIO) algorithm for accurate state estimation enabling navigation in GPS denied locations. The proposed framework formulates the DQUKF in an error state manner, where the nominal pose is represented by a unit...
‘BeiDou Goddess’: key figure in China GPS-equivalent satellite system, earns PhD by 26
‘BeiDou Goddess’: key figure in China GPS-equivalent satellite system, earns PhD by 26 ‘Do not underestimate a girl at the foot of the mountain, and do not deify her once she reaches the summit,’ Xu famously states A Chinese scientist behind China’s BeiDou Navigation Satellite System rejects the “goddess” label, asserting that research transcends gender. Xu Ying, 43, hails from Sichuan province in southwestern China, born to a maths teacher mother and an agricultural technician father. As a...
GPs in England too ‘overloaded’ to help older people at risk of falling, say MPs
NHS bosses giving evidence to public accounts committee admit current position is unacceptableGPs in England are so “overloaded” that they cannot help older people who are at risk of falling in what NHS bosses accept is an unacceptable failure of care, the House of Commons’ public accounts committee has said. Pressure on GPs’ time has intensified as a result of the government’s decision to give patients online access to their services, according to a report by the influential cross-party...
GPs in England too ‘overloaded’ to help older people at risk of falling, say MPs
NHS bosses giving evidence to public accounts committee admit current position is unacceptableGPs in England are so “overloaded” that they cannot help older people who are at risk of falling in what NHS bosses accept is an unacceptable failure of care, the House of Commons’ public accounts committee has said. Pressure on GPs’ time has intensified as a result of the government’s decision to give patients online access to their services, according to a report by the influential cross-party...
GPs in England too ‘overloaded’ to help older people at risk of falling, say MPs
NHS bosses giving evidence to public accounts committee admit current position is unacceptableGPs in England are so “overloaded” that they cannot help older people who are at risk of falling in what NHS bosses accept is an unacceptable failure of care, the House of Commons’ public accounts committee has said. Pressure on GPs’ time has intensified as a result of the government’s decision to give patients online access to their services, according to a report by the influential cross-party...
GPs in England too ‘overloaded’ to help older people at risk of falling, say MPs
NHS bosses giving evidence to public accounts committee admit current position is unacceptableGPs in England are so “overloaded” that they cannot help older people who are at risk of falling in what NHS bosses accept is an unacceptable failure of care, the House of Commons’ public accounts committee has said. Pressure on GPs’ time has intensified as a result of the government’s decision to give patients online access to their services, according to a report by the influential cross-party...