𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Conjugate gradient versus steepest descent

✍ Scribed by J. C. Allwright

Book ID
105009771
Publisher
Springer
Year
1976
Tongue
English
Weight
266 KB
Volume
20
Category
Article
ISSN
0022-3239

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Momentum-weighted conjugate gradient des
Momentum-weighted conjugate gradient descent algorithm for gradient coil optimization
✍ Hanbing Lu; Andrzej Jesmanowicz; Shi-Jiang Li; James S. Hyde πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 164 KB

## Abstract MRI gradient coil design is a type of nonlinear constrained optimization. A practical problem in transverse gradient coil design using the conjugate gradient descent (CGD) method is that wire elements move at different rates along orthogonal directions (__r, Ο†, z__), and tend to cross,

Two descent hybrid conjugate gradient me
Two descent hybrid conjugate gradient methods for optimization
✍ Li Zhang; Weijun Zhou πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 183 KB

In this paper, we propose two new hybrid nonlinear conjugate gradient methods, which produce sufficient descent search direction at every iteration. This property depends neither on the line search used nor on the convexity of the objective function. Under suitable conditions, we prove that the prop

Coil optimization for MRI by conjugate g
Coil optimization for MRI by conjugate gradient descent
✍ Eric C. Wong; A. Jesmanowicz; James S. Hyde πŸ“‚ Article πŸ“… 1991 πŸ› John Wiley and Sons 🌐 English βš– 650 KB

## Abstract A flexible iterative algorithm is presented for optimizing gradient and radio frequency coils for MRI. It is based on a model using discrete current elements and direct Biot‐Savart calculation of the fields. An error function is defined over a region of interest (ROI) and is minimized b