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Hajime Machida

Hajime Machida publishes mostly in Computational Theory and Mathematics, Algebra and Number Theory and Management Science and Operations Research, on topics such as Advanced Algebra and Logic, semigroups and automata theory and Rings, Modules, and Algebras.

World rank
#1,287,074
of 1,633,909 ranked researchers
Rank in Japan
#82,115
of 114,622
Works
29
Citations
16
Citations per work
0.6

What does Hajime Machida research?

Computational Theory and Mathematics: 51.4%Algebra and Number Theory: 17.1%Management Science and Operations Research: 8.6%Periodontics: 5.7%other fields: 17.2%51%top field
Computational Theory and Mathematics51.4%Algebra and Number Theory17.1%Management Science and Operations Research8.6%Periodontics5.7%other fields17.2%

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

  1. 1Computational Theory and Mathematics51% of their works
  2. 2Algebra and Number Theory17% of their works
  3. 3Management Science and Operations Research9% of their works
  4. 4Periodontics6% of their works
  5. 5Civil and Structural Engineering3% of their works
  6. 6Emergency Medical Services3% of their works

Research topics

Which keywords describe Hajime Machida's research?

The keywords of their largest research topics: Fuzzy Logic, Residuated Lattices, Automata, Armendariz Rings, Formal Languages, Regular Expressions, Zero-Divisor Graphs and Rough Sets.

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 18 words, with their numbers
  1. Fuzzy Logic91 topic
  2. Residuated Lattices91 topic
  3. Automata72 topics
  4. Armendariz Rings61 topic
  5. Formal Languages61 topic
  6. Regular Expressions61 topic
  7. Zero-Divisor Graphs61 topic
  8. Rough Sets42 topics
  9. Decision Making31 topic
  10. Soft Set Theory31 topic
  11. Algorithmic Information Theory11 topic
  12. Computability11 topic
  13. Cryptography11 topic
  14. Error-Correcting Codes11 topic
  15. Feature Selection11 topic
  16. Granular Computing11 topic
  17. Model Checking11 topic
  18. Symbolic Model Checker11 topic

Where does Hajime Machida work?

Hajime Machida's main affiliation in the publication record is Hitotsubashi University, Japan.

How many publications and citations does Hajime Machida have?

Science Explorer counts 29 works and 16 citations for Hajime Machida, ranking #1,287,074 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.

Papers, co-authors, who cited this work and researchers on the nearest topics are in the interactive view on the map. Is this your page? Request a correction or removal.