Science Explorer Interactive view Map

R. Fletcher

R. Fletcher publishes mostly in Numerical Analysis, Computational Theory and Mathematics and Control and Systems Engineering, on topics such as Advanced Optimization Algorithms Research, Matrix Theory and Algorithms and Advanced Control Systems Optimization.

World rank
#136,993
of 1,633,909 ranked researchers
Rank in United Kingdom
#12,858
of 90,785
Works
19
Citations
2k
Citations per work
105.6

What does R. Fletcher research?

Numerical Analysis: 30.3%Computational Theory and Mathematics: 27.3%Control and Systems Engineering: 12.1%Artificial Intelligence: 6.1%other fields: 24.2%30%top field
Numerical Analysis30.3%Computational Theory and Mathematics27.3%Control and Systems Engineering12.1%Artificial Intelligence6.1%other fields24.2%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Numerical Analysis30% of their works
  2. 2Computational Theory and Mathematics27% of their works
  3. 3Control and Systems Engineering12% of their works
  4. 4Artificial Intelligence6% of their works
  5. 5Computational Mechanics6% of their works
  6. 6Computer Networks and Communications3% of their works

Research topics

Which keywords describe R. Fletcher's research?

The keywords of their largest research topics: Global Optimization, Optimization Software, Semidefinite Programming, Constraint Handling, Matrix Computations, Numerical Linear Algebra, Optimization and Model Predictive Control.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 21 words, with their numbers
  1. Global Optimization92 topics
  2. Optimization Software81 topic
  3. Semidefinite Programming81 topic
  4. Constraint Handling52 topics
  5. Matrix Computations51 topic
  6. Numerical Linear Algebra51 topic
  7. Optimization52 topics
  8. Model Predictive Control41 topic
  9. Nonlinear Systems41 topic
  10. Evolutionary Algorithms22 topics
  11. Particle Swarm Optimization22 topics
  12. Ant Colony Optimization11 topic
  13. Differential Evolution11 topic
  14. Fuzzy Computing11 topic
  15. Gröbner Bases11 topic
  16. Intelligent Systems11 topic
  17. Iterative Algorithms11 topic
  18. Multiobjective Optimization11 topic
  19. Nonlinear Operators11 topic
  20. Surrogate Modeling11 topic
  21. Symbolic Computing11 topic

Where does R. Fletcher work?

R. Fletcher's main affiliation in the publication record is University of Dundee, United Kingdom.

How many publications and citations does R. Fletcher have?

Science Explorer counts 19 works and 2,006 citations for R. Fletcher, ranking #136,993 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Other researchers named R. Fletcher

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