Principal component analysis for Gaussian process posteriors [PDF]
Neural Computation, 34, 1189-1219, 2022, 2021 This paper proposes an extension of principal component analysis for Gaussian process (GP) posteriors, denoted by GP-PCA. Since GP-PCA estimates a low-dimensional space of GP posteriors, it can be used for meta-learning, which is a framework for improving the performance of target tasks by estimating a structure of a set of tasks.
arxiv +1 more source
Atmosphere, 2021 FORMOSAT-7/COSMIC-2 (FS7/C2) satellite was successfully launched in June 2019. The satellite provides about 5000 radio occultation (RO) soundings daily over the tropical and partial subtropical regions.
Shu-Ya Chen +2 more
doaj +1 more source
Influence of the Bounds of the Hyperparameters on the Reconstruction of Hubble Constant with Gaussian Process [PDF]
, 2021 The cosmological model-independent method Gaussian process (GP) has been widely used in the reconstruction of Hubble constant $H_0$, and the hyperparameters inside GP influence the reconstructed result derived from GP. Different hyperparameters inside GP are used in the constraint of $H_0$ derived from GP with observational Hubble parameter $H(z)$ data
arxiv +1 more source
Improving the accuracy of estimates of animal path and travel distance using GPS drift-corrected dead reckoning [PDF]
, 2016 Route taken and distance travelled are important parameters for studies of animal locomotion. They are often measured using a collar equipped with GPS.
Bidder +23 more
core +1 more source
Sporadic E signatures revealed from multi-satellite radio occultation measurements [PDF]
Advances in Radio Science, 2010 Radio occultation measurements performed by the satellites CHAMP, GRACE and FORMOSAT-3/COSMIC provide a huge data set for atmospheric and ionospheric investigations on a global scale.
C. Arras +4 more
doaj +1 more source
GP-MOOD: A positive-preserving high-order finite volume method for hyperbolic conservation laws [PDF]
, 2021 We present an a posteriori shock-capturing finite volume method algorithm called GP-MOOD that solves a compressible hyperbolic conservative system at high-order solution accuracy (e.g., third-, fifth-, and seventh-order) in multiple spatial dimensions. The GP-MOOD method combines two methodologies, the polynomial-free spatial reconstruction methods of ...
arxiv +1 more source
The GPS Assimilator: a Method for Upgrading Existing GPS User Equipment to Improve Accuracy, Robustness, and Resistance to Spoofing [PDF]
, 2010 Preprint of the 2010 ION GNSS Conference Portland, OR, September 21–24, 2010A conceptual method is presented for upgrading existing GPS user equipment, without requiring hardware or software modifications to the equipment, to improve the equipment’s ...
Bhatti, Jahshan +2 more
core +2 more sources
Validation of GPS atmospheric water vapor with WVR data in satellite tracking mode [PDF]
Annales Geophysicae, 2015 Slant-integrated water vapor (SIWV) data derived from GPS STDs (slant total delays), which provide the spatial information on tropospheric water vapor, have a high potential for assimilation to weather models or for nowcasting or reconstruction of the
M. Shangguan +6 more
doaj +1 more source
Frontiers in Ecology and Evolution, 2023 A significant portion of Zhanjiang City’s ecological land areas have been reduced as a result of the city’s growing urbanization, which has caused the city’s ecological environment quality to decline.
Jing Wang +5 more
doaj +1 more source
Where do we go from here? An assessment of navigation performance using a compass versus a GPS unit [PDF]
, 2007 The Global Positioning System (GPS) looks set to replace the traditional map and compass for navigation tasks in military and civil domains. However, we may ask whether GPS has a real performance advantage over traditional methods.
AP Leggatt +11 more
core +1 more source