The use of the L-curve in the regularization of discrete ill-posed problems PC Hansen, DP O’Leary SIAM journal on scientific computing 14 (6), 1487-1503, 1993 | 3936 | 1993 |

Deblurring images: matrices, spectra, and filtering PC Hansen, JG Nagy, DP O'leary Society for Industrial and Applied Mathematics, 2006 | 1329 | 2006 |

Tikhonov regularization and total least squares GH Golub, PC Hansen, DP O'Leary SIAM journal on matrix analysis and applications 21 (1), 185-194, 1999 | 1254 | 1999 |

A generalized conjugate gradient method for the numerical solution of elliptic partial differential equations P Concus, GH Golub, DP O'Leary Sparse matrix computations, 309-332, 1976 | 776 | 1976 |

The block conjugate gradient algorithm and related methods DP O'Leary Linear algebra and its applications 29, 293-322, 1980 | 643 | 1980 |

Text summarization via hidden markov models JM Conroy, DP O'leary Proceedings of the 24th annual international ACM SIGIR conference on …, 2001 | 600 | 2001 |

Multi-splittings of matrices and parallel solution of linear systems DP O’leary, RE White SIAM Journal on algebraic discrete methods 6 (4), 630-640, 1985 | 535 | 1985 |

Why do hubs in the yeast protein interaction network tend to be essential: reexamining the connection between the network topology and essentiality E Zotenko, J Mestre, DP O'Leary, TM Przytycka PLoS computational biology 4 (8), e1000140, 2008 | 470 | 2008 |

Choosing regularization parameters in iterative methods for ill-posed problems ME Kilmer, DP O'Leary SIAM Journal on matrix analysis and applications 22 (4), 1204-1221, 2001 | 412 | 2001 |

A semidiscrete matrix decomposition for latent semantic indexing information retrieval TG Kolda, DP O'leary ACM Transactions on Information Systems (TOIS) 16 (4), 322-346, 1998 | 351 | 1998 |

Some history of the conjugate gradient and Lanczos algorithms: 1948–1976 GH Golub, DP O’Leary SIAM review 31 (1), 50-102, 1989 | 348 | 1989 |

Restoring images degraded by spatially variant blur JG Nagy, DP O'Leary SIAM Journal on Scientific Computing 19 (4), 1063-1082, 1998 | 320 | 1998 |

Regularization by truncated total least squares RD Fierro, GH Golub, PC Hansen, DP O'Leary SIAM Journal on Scientific Computing 18 (4), 1223-1241, 1997 | 318 | 1997 |

A multigrid method enhanced by Krylov subspace iteration for discrete Helmholtz equations HC Elman, OG Ernst, DP O'leary SIAM Journal on scientific computing 23 (4), 1291-1315, 2001 | 313 | 2001 |

A weighted GCV method for Lanczos hybrid regularization J Chung, JG Nagy, DP O’leary Electronic Transactions on Numerical Analysis 28 (149-167), 2008, 2008 | 249 | 2008 |

Robust regression computation using iteratively reweighted least squares DP O’Leary SIAM Journal on Matrix Analysis and Applications 11 (3), 466-480, 1990 | 220 | 1990 |

A bidiagonalization-regularization procedure for large scale discretizations of ill-posed problems DP O’Leary, JA Simmons SIAM Journal on Scientific and Statistical Computing 2 (4), 474-489, 1981 | 217 | 1981 |

Variable projection for nonlinear least squares problems DP O’Leary, BW Rust Computational Optimization and Applications 54, 579-593, 2013 | 195 | 2013 |

Asymptotically optimal quantum circuits for d-level systems SS Bullock, DP O’Leary, GK Brennen Physical review letters 94 (23), 230502, 2005 | 165 | 2005 |

Data-flow algorithms for parallel matrix computation DP O'leary, GW Stewart Communications of the ACM 28 (8), 840-853, 1985 | 137 | 1985 |