James M. Ortega

Publication Activity (10 Years)

Years Active: 1960-1996
Publications (10 Years): 0

Publications

David J. Schlesinger, John W. Snell, Lois E. Mansfield, James R. Brookeman, James M. Ortega, Neal F. Kassell
Segmentation of volumetric medical imagery using multiple geodesic-based active surfaces. Medical Imaging: Image Processing (1996)
John W. Snell, Michael B. Merickel, James M. Ortega, John C. Goble, James R. Brookeman, Neal F. Kassell
Model-based boundary estimation of complex objects using hierarchical active surface templates. Pattern Recognit. 28 (10) (1995)
Brett M. Averick, James M. Ortega
Fast Solution of Nonlinear Poisson-Type Equations. SIAM J. Sci. Comput. 14 (1) (1993)
James M. Ortega
Orderings for Conjugate Gradient Preconditionings. SIAM J. Optim. 1 (4) (1991)
Stanley C. Eisenstat, James M. Ortega, Courtenay T. Vaughan
Efficient Polynomial Preconditioning for the Conjugate Gradient Method. SIAM J. Sci. Comput. 11 (5) (1990)
D. L. Harrar, James M. Ortega
Multicoloring with lots of colors. ICS (1989)
Charles H. Romine, James M. Ortega
Parallel solution of triangular systems of equations. Parallel Comput. 6 (1) (1988)
Loyce M. Adams, James M. Ortega
A multi-color SOR method for parallel computation. ICPP (1982)
James M. Ortega
Numerical analysis position. ACM SIGCSE Bull. 6 (3) (1974)
Norman E. Gibbs, Donald W. Loveland, James M. Ortega
The heart of computer science. ACM SIGCSE Bull. 6 (4) (1974)
James M. Ortega
Generation of test matrices by similarity transformations. Commun. ACM 7 (6) (1964)
James M. Ortega, Henry F. Kaiser
The LLT and QR methods for symmetric tridiagonal matrices. Comput. J. 6 (1) (1963)
James M. Ortega
On Sturm Sequences for Tridiagonal Matrices. J. ACM 7 (3) (1960)