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Researcher · The Institute of Statistical Mathematics · Japan

Yoichi Nishiyama

Yoichi Nishiyama publishes mostly in Statistics and Probability, Finance and Artificial Intelligence, on topics such as Statistical Methods and Inference, Stochastic processes and financial applications and Bayesian Methods and Mixture Models.

OpenAlex
World rank
#6,668,132
of 7,710,434 ranked researchers
Rank in Japan
#276,951
of 383,136
Works
63
Citations
307
Citations per work
4.9
h-index
10
i10-index 11Top 53% in Statistics and Probability
Yoichi Nishiyama

What does Yoichi Nishiyama research?

Yoichi Nishiyama's work is mostly in Mathematics (37%), Economics, Econometrics and Finance (21%), Decision Sciences (13%).

Physical Sciences: 30 works · 48.2% of their workMathematics: 23 works · 36.6% of their workStatistics and Probability: 20 works · 31.7% of their workMathematical Physics: 3 works · 4.9% of their workComputer Science: 7 works · 11.6% of their workArtificial Intelligence: 7 works · 11.6% of their workSocial Sciences: 21 works · 34.1% of their workEconomics, Econometrics and Finance: 13 works · 20.7% of their workFinance: 13 works · 20.7% of their workDecision Sciences: 8 works · 13.4% of their workManagement Science and Operations Research: 5 works · 7.3% of their workStatistics, Probability and Uncertainty: 4 works · 6.1% of their workEverything else: 11 works · 17.7% of their workTHEIR WORKYoichi Nishiyama63works
Physical Sciences48%Social Sciences34%

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. Mathematics2336.6%
    2. Computer Science711.6%
    1. Economics, Econometrics and Finance1320.7%
    2. Decision Sciences813.4%
  3. Everything else1117.7%
  1. 1Statistics and Probability32% of their works
  2. 2Finance21% of their works
  3. 3Artificial Intelligence12% of their works
  4. 4Management Science and Operations Research7% of their works
  5. 5Statistics, Probability and Uncertainty6% of their works
  6. 6Mathematical Physics5% of their works

Research topics

Which keywords describe Yoichi Nishiyama's research?

The keywords of their largest research topics: Regularization, Variable Selection, Option Pricing, Stochastic Calculus, Clustering, Mixture Models, Risk Management and GARCH Models.

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. Regularization371 topic
  2. Variable Selection371 topic
  3. Option Pricing231 topic
  4. Stochastic Calculus231 topic
  5. Clustering181 topic
  6. Mixture Models181 topic
  7. Risk Management172 topics
  8. GARCH Models111 topic
  9. Volatility111 topic
  10. Healthcare Improvement71 topic
  11. Statistical Process Control71 topic
  12. Finance61 topic
  13. Robust Optimization61 topic
  14. Bayesian Modeling41 topic
  15. Multicollinearity41 topic
  16. Multiple Imputation41 topic
  17. Regression Analysis41 topic

Where does Yoichi Nishiyama work?

Yoichi Nishiyama's main affiliation in the publication record is The Institute of Statistical Mathematics, Japan.

How many publications and citations does Yoichi Nishiyama have?

OpenAlex counts 63 works and 307 citations for Yoichi Nishiyama, an h-index of 10, ranking #6,668,132 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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