Per-Åke Wedin

1.9k total citations · 1 hit paper
21 papers, 1.3k citations indexed

About

Per-Åke Wedin is a scholar working on Numerical Analysis, Computational Theory and Mathematics and Computational Mechanics. According to data from OpenAlex, Per-Åke Wedin has authored 21 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Numerical Analysis, 10 papers in Computational Theory and Mathematics and 6 papers in Computational Mechanics. Recurrent topics in Per-Åke Wedin's work include Advanced Optimization Algorithms Research (10 papers), Matrix Theory and Algorithms (9 papers) and Statistical and numerical algorithms (5 papers). Per-Åke Wedin is often cited by papers focused on Advanced Optimization Algorithms Research (10 papers), Matrix Theory and Algorithms (9 papers) and Statistical and numerical algorithms (5 papers). Per-Åke Wedin collaborates with scholars based in Sweden, Switzerland and United States. Per-Åke Wedin's co-authors include Inge Söderkvist, Mårten Gulliksson, Lennart Edsberg and Per Lindström and has published in prestigious journals such as Journal of Biomechanics, Mathematical Programming and SIAM Journal on Optimization.

In The Last Decade

Per-Åke Wedin

19 papers receiving 1.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Determining the movements of the skeleton using well-configured markers

1993 614 citations Inge Söderkvist, Per-Åke Wedin Journal of Biomechanics profile →

Peers

Per-Åke Wedin

BE

SURGE

CTM

CM

NA

Roman Trobec Slovenia

Jörg Peters United States

David A. Levinson United States

Jens Wittenburg Germany

François Lauze Denmark

Dana Copoţ Belgium

M. Hasler Switzerland

Michel Sorine France

Declan G. Bates United Kingdom

Richard W. Longman United States

Roman Trobec Slovenia

Per-Åke Wedin

414 ×1.2

BE

102 ×0.3

SURGE

99 ×0.4

CTM

121 ×0.6

CM

24 ×0.1

NA

Citations per year, relative to Per-Åke Wedin Per-Åke Wedin (= 1×) peers Roman Trobec

Countries citing papers authored by Per-Åke Wedin

Since Specialization

Citations

This map shows the geographic impact of Per-Åke Wedin's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Per-Åke Wedin with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Per-Åke Wedin more than expected).

Fields of papers citing papers by Per-Åke Wedin

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Per-Åke Wedin. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Per-Åke Wedin. The network helps show where Per-Åke Wedin may publish in the future.

Co-authorship network of co-authors of Per-Åke Wedin

This figure shows the co-authorship network connecting the top 25 collaborators of Per-Åke Wedin. A scholar is included among the top collaborators of Per-Åke Wedin based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Per-Åke Wedin. Per-Åke Wedin is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

1.

Wedin, Per-Åke, et al.. (2006). Algorithms for 3-dimensional Weighted Orthogonal Procrustes Problems. 4 indexed citations

2.

Wedin, Per-Åke, et al.. (2006). Algorithms for Linear Least Squares Problems on the Stiefel manifold. 2 indexed citations

3.

Wedin, Per-Åke, et al.. (2005). Regularization Methods for Uniformly Rank-Deficient Nonlinear Least-Squares Problems. Journal of Optimization Theory and Applications. 127(1). 1–26. 13 indexed citations

4.

Wedin, Per-Åke, et al.. (2004). Truncated Gauss–Newton algorithms for Ill-conditioned nonlinear least squares problems. Optimization methods & software. 19(6). 721–737. 7 indexed citations

5.

Wedin, Per-Åke, et al.. (2002). First Order Error Analysis of a Linear System of Equations by use of Error Propagation Matrices connected to the Pseudoinverse Solution. 2 indexed citations

6.

Wedin, Per-Åke, et al.. (2002). Interpretation and Practical Use of Error Propagation Matrices.

7.

Gulliksson, Mårten & Per-Åke Wedin. (2000). Perturbation theory for generalized and constrained linear least squares. Numerical Linear Algebra with Applications. 7(4). 181–195. 13 indexed citations

8.

Gulliksson, Mårten & Per-Åke Wedin. (2000). The Use and Properties of Tikhonov Filter Matrices. SIAM Journal on Matrix Analysis and Applications. 22(1). 276–281. 5 indexed citations

9.

Gulliksson, Mårten, et al.. (1998). Regularization tools for training large feed-forward neural networks using automatic differentiation^∗. Optimization methods & software. 10(1). 49–69. 7 indexed citations

10.

Gulliksson, Mårten, Inge Söderkvist, & Per-Åke Wedin. (1997). Algorithms for Constrained and Weighted Nonlinear Least Squares. SIAM Journal on Optimization. 7(1). 208–224. 14 indexed citations

11.

Edsberg, Lennart & Per-Åke Wedin. (1995). Numerical tools for parameter estimation in ode-systems. Optimization methods & software. 6(3). 193–217. 30 indexed citations

12.

Söderkvist, Inge, et al.. (1994). A note on some identification problems arising in roentgen stereo photogrammetric analysis. Journal of Biomechanics. 27(10). 1291–1294. 20 indexed citations

13.

Söderkvist, Inge & Per-Åke Wedin. (1994). On condition numbers and algorithms for determining a rigid body movement. BIT Numerical Mathematics. 34(3). 424–436. 32 indexed citations

14.

Söderkvist, Inge & Per-Åke Wedin. (1993). Determining the movements of the skeleton using well-configured markers. Journal of Biomechanics. 26(12). 1473–1477. 614 indexed citations breakdown →

15.

Gulliksson, Mårten & Per-Åke Wedin. (1992). Modifying the QR-Decomposition to Constrained and Weighted Linear Least Squares. SIAM Journal on Matrix Analysis and Applications. 13(4). 1298–1313. 42 indexed citations

16.

Lindström, Per & Per-Åke Wedin. (1984). A new linesearch algorithm for nonlinear least squares problems. Mathematical Programming. 29(3). 268–296. 11 indexed citations

17.

Wedin, Per-Åke, et al.. (1977). A comparison of some algorithms for the nonlinear least squares problem. BIT Numerical Mathematics. 17(1). 72–90. 30 indexed citations

18.

Wedin, Per-Åke. (1973). Perturbation theory for pseudo-inverses. BIT Numerical Mathematics. 13(2). 217–232. 221 indexed citations

19.

Wedin, Per-Åke. (1973). On the almost rank deficient case of the least squares problem. BIT Numerical Mathematics. 13(3). 344–354. 2 indexed citations

20.

Wedin, Per-Åke. (1972). Perturbation bounds in connection with singular value decomposition. BIT Numerical Mathematics. 12(1). 99–111. 265 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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