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Researcher · Okayama University · Japan

Hayatoshi Sayama

Hayatoshi Sayama publishes mostly in Control and Systems Engineering, Numerical Analysis and Computational Theory and Mathematics, on topics such as Advanced Control Systems Optimization, Advanced Optimization Algorithms Research and Optimization and Variational Analysis.

OpenAlex
World rank
#3,764,599
of 7,710,434 ranked researchers
Rank in Japan
#96,727
of 383,136
Works
60
Citations
663
Citations per work
11.1
h-index
11
i10-index 11Top 35% in Control and Systems Engineering
Hayatoshi Sayama

What does Hayatoshi Sayama research?

Hayatoshi Sayama's work is mostly in Engineering (35%), Computer Science (14%), Mathematics (10%).

Physical Sciences: 35 works · 58.6% of their workEngineering: 21 works · 34.9% of their workControl and Systems Engineering: 16 works · 26.3% of their workComputational Mechanics: 5 works · 8.6% of their workComputer Science: 8 works · 13.8% of their workComputational Theory and Mathematics: 6 works · 9.2% of their workArtificial Intelligence: 3 works · 4.6% of their workMathematics: 6 works · 9.9% of their workNumerical Analysis: 6 works · 9.9% of their workEverything else: 22 works · 37.5% of their workSocial Sciences: 2 works · 3.9% of their workDecision Sciences: 2 works · 3.9% of their workStatistics, Probability and Uncertainty: 2 works · 3.9% of their workTHEIR WORKHayatoshi Sayama60works
Physical Sciences59%Social Sciences4%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
    1. Engineering2134.9%
    2. Computer Science813.8%
    3. Mathematics69.9%
  2. Everything else2237.5%
    1. Decision Sciences23.9%
  1. 1Control and Systems Engineering26% of their works
  2. 2Numerical Analysis10% of their works
  3. 3Computational Theory and Mathematics9% of their works
  4. 4Computational Mechanics9% of their works
  5. 5Artificial Intelligence5% of their works
  6. 6Statistics, Probability and Uncertainty4% of their works

Research topics

Which keywords describe Hayatoshi Sayama's research?

The keywords of their largest research topics: Optimization, Model Predictive Control, Nonlinear Systems, Optimization Software, Semidefinite Programming, Fault Detection, Iterative Algorithms and Nonlinear Operators.

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 17 words, with their numbers
  1. Optimization313 topics
  2. Model Predictive Control111 topic
  3. Nonlinear Systems111 topic
  4. Optimization Software111 topic
  5. Semidefinite Programming111 topic
  6. Fault Detection101 topic
  7. Iterative Algorithms101 topic
  8. Nonlinear Operators101 topic
  9. Process Intensification101 topic
  10. Process Monitoring101 topic
  11. Scheduling101 topic
  12. Bayesian Networks61 topic
  13. Fault Tree Analysis61 topic
  14. Heat Transfer61 topic
  15. Nanofluids61 topic
  16. Matrix Computations41 topic
  17. Numerical Linear Algebra41 topic

Where does Hayatoshi Sayama work?

Hayatoshi Sayama's main affiliation in the publication record is Okayama University, Japan.

How many publications and citations does Hayatoshi Sayama have?

OpenAlex counts 60 works and 663 citations for Hayatoshi Sayama, an h-index of 11, ranking #3,764,599 of 7,710,434 researchers worldwide on the quality 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.

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

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