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Researcher · National Institute of Informatics · Japan

Keizo Oyama

Keizo Oyama publishes mostly in Information Systems, Artificial Intelligence and Computer Vision and Pattern Recognition, on topics such as Web Data Mining and Analysis, Semantic Web and Ontologies and Advanced Text Analysis Techniques.

ORCID 0000-0003-4385-8798 OpenAlex
World rank
#1,437,205
of 1,633,909 ranked researchers
Rank in Japan
#96,413
of 114,622
Works
24
Citations
26
Citations per work
1.1

What does Keizo Oyama research?

Information Systems: 31.4%Artificial Intelligence: 22.9%Computer Vision and Pattern Recognition: 20.0%Signal Processing: 11.4%other fields: 14.3%31%top field
Information Systems31.4%Artificial Intelligence22.9%Computer Vision and Pattern Recognition20.0%Signal Processing11.4%other fields14.3%

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

  1. 1Information Systems31% of their works
  2. 2Artificial Intelligence23% of their works
  3. 3Computer Vision and Pattern Recognition20% of their works
  4. 4Signal Processing11% of their works
  5. 5Computer Networks and Communications9% of their works
  6. 6Statistical and Nonlinear Physics3% of their works

Research topics

Which keywords describe Keizo Oyama's research?

The keywords of their largest research topics: Information Retrieval, Web Crawling, Web Data Extraction, Machine Learning, Neural Networks, Ontology, Semantic Web and Automatic.

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 19 words, with their numbers
  1. Information Retrieval103 topics
  2. Web Crawling71 topic
  3. Web Data Extraction71 topic
  4. Machine Learning32 topics
  5. Neural Networks32 topics
  6. Ontology31 topic
  7. Semantic Web31 topic
  8. Automatic21 topic
  9. Content-Based Image Retrieval21 topic
  10. Continuous Queries21 topic
  11. Data Stream Management21 topic
  12. Extraction21 topic
  13. Search Engines21 topic
  14. Shape Matching21 topic
  15. User Behavior21 topic
  16. Machine Translation11 topic
  17. Opinion Mining11 topic
  18. Sentiment Analysis11 topic
  19. Word Representation11 topic

Where does Keizo Oyama work?

Keizo Oyama's main affiliation in the publication record is National Institute of Informatics, Japan.

How many publications and citations does Keizo Oyama have?

Science Explorer counts 24 works and 26 citations for Keizo Oyama, ranking #1,437,205 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.