Results 91 to 100 of about 156,827 (214)
Integrated multi-index drought monitoring and projection under climate change [PDF]
Understanding drought trends under climate change is critical for effective water resources management. Given the complex nature of droughts, relying solely on a single variable for drought analysis might not be adequate for promptly and reliably ...
Moradian, Sogol +4 more
core +1 more source
A Characterization of Principal Components for Projection Pursuit [PDF]
, 1999 Principal Component Analysis is a technique often found to be useful for identifying structure in multivariate data. Although it has various characterizations (Rao 1964), the most familiar is as a variance-maximizing projection.
Richard J. Bolton, Wojtek J. Krzanowski
core
Improved Patch Packing and Refining Segmentation for the V-PCC Standard
Applied SciencesHigh-performance coding solutions are urgently needed for the storage and transmission of 3D point clouds due to the development of 3D data acquisition facilities and the increasing scale of acquired point clouds.
Hao Luo +4 more
doaj +1 more source
Kurtosis-based projection pursuit for matrix-valued data [PDF]
We develop projection pursuit for data that admit a natural representation in matrix form. For projection indices, we propose extensions of the classical kurtosis and Mardia’s multivariate kurtosis. The first index estimates projections for both sides of
Radojičić, Una; orcid: +2 more
core +1 more source
Inverse problems in demography and biodemography [PDF]
Inverse problems play important role in science and engineering. Estimation of boundary conditions on the temperature distribution inside a metallurgical furnace, reconstruction of tissue density inside body on plane projections obtained with x-rays are ...
Anatoli I. Michalski
core
Experiences with bivariate projection pursuit indices [PDF]
, 1995 We investigate the behaviour of several popular projection pursuit indices for exploratory data analysis. Two indices, the Friedman-Tukey and the Entropy-index, are based on kernel density estimation, while the Legendre-, Hermite- and Natural-Hermite ...
Sigbert Klinke, Jörg Polzehl
core
Stochastic Population Projection for Germany [PDF]
This contribution builds upon a former paper by the authors (Lipps and Betz 2004), in which a stochastic population projection for East- and West Germany is performed.
Frank Betz, Oliver Lipps
core
Quantized Projection Data Hiding [PDF]
, 2002 In this paper we propose a novel data hiding procedure called Quantized Projection (QP), that combines elements from quantization (i.e. Quantization Index Modulation, QIM) and spread-spectrum methods.
Fernando Perez-Gonzalez +2 more
core
Multi-wavelength structured light based on metasurfaces for 3D imaging
NanophotonicsStructured light projection provides a promising approach to achieving fast and non-contact three-dimensional (3D) imaging. The resolution is a crucial index that represents security and accuracy in applications such as face recognition and robot vision.
Lyu Baiying +10 more
doaj +1 more source