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Structured Regression Gradient Boosting
2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2016We propose a new way to train a structured output prediction model. More specifically, we train nonlinear data terms in a Gaussian Conditional Random Field (GCRF) by a generalized version of gradient boosting. The approach is evaluated on three challenging regression benchmarks: vessel detection, single image depth estimation and image inpainting ...
Ferran Diego, Fred A. Hamprecht
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The Variational Structure of Gradient Extremals
Journal of Chemical Theory and Computation, 2012The gradient extremals can be taken as a representation of reaction paths. We prove that this type of curve possesses a variational nature. We report the conditions such that these curves have the character of a minimal curve. Finally we discuss the relations between the points of these curves being turning points with respect to other special points ...
Josep Maria, Bofill +2 more
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Gradient-Structured Nonflammable Flexible Polymer Membranes
ACS Applied Materials & Interfaces, 2019Herein, we report the formation and properties of a rare example of high-performance composite membranes from polybisbenzimidazobenzophenanthroline-dione (BBB) that do not sustain a flame or burn with smoke nor show melt dripping. In addition, this material possesses a low density and very high thermal stability (char yield as high as 80-94%), strength,
Jian Zhu +4 more
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Controllable Growth of Gradient Porous Structures
Biomacromolecules, 2009Cocontinuous phase structures of immiscible polymers can be developed under appropriate melt-blending conditions. Because of the presence of interfacial tension, such cocontinuous structures start to coarsen when heated to a temperature higher than the melting/softening temperature of both phases.
Donggang, Yao, Wei, Zhang, Jack G, Zhou
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Gradient-Based Structural Estimation
SSRN Electronic Journal, 2018In this paper, I show how gradient-based optimization methods can be used to estimate stochastic dynamic models in economics. By extending the state space to include all model parameters, I show that we need to solve the model only once to do structural estimation.
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Stereological analysis and modelling of gradient structures
Journal of Microscopy, 1999Gradient structures are inhomogeneous along a particular gradient direction but homogeneous perpendicular to that direction. Consequently, structural parameters such as volume fraction or surface area density are local characteristics which depend on the ‘vertical’ coordinate with respect to the ‘vertical’ gradient axis.Analogously, models for gradient
U. Hahn +4 more
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Standing wave high gradient accelerator structure
Review of Scientific Instruments, 1977A novel type of standing wave linear accelerator structure has been developed at Varian Associates, Inc. This accelerator is an interlaced combination of two side-cavity-coupled standing wave substructures. An S-band prototype accelerator guide with two identical substructures and total accelerating length of 10 cm has been built and successfully ...
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Gradient-Based Local Causal Structure Learning
IEEE Transactions on CyberneticsFinding the causal structure from a set of variables given observational data is a crucial task in many scientific areas. Most algorithms focus on discovering the global causal graph but few efforts have been made toward the local causal structure (LCS), which is of wide practical significance and easier to obtain.
Jiaxuan Liang +5 more
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Structure Preserving Quaternion Biconjugate Gradient Method
SIAM Journal on Matrix Analysis and ApplicationszbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tao Li, Qing-Wen Wang
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Gradient structures in cementitious materials
Cement and Concrete Composites, 2007Abstract A methodological approach to gradient structures in concrete technology is outlined in this paper. It is introduced by summarizing the approach to bulk structures, because of major similarities, and combined use in practice. The 3D structure assessment is specified for volume fraction, VV, specific surface area, SV, and total lineal ...
P. Stroeven, J. Hu
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