0000-0002-4494-8640

37061603300

HIROKI OBATA

Kumamoto University

Publications

Citations

h-index

R-3ACB2-09C8F-CK19X

0000-0002-4494-8640

37061603300

Found

Total publications

Total citations

Citations per publication

Average publications per year

0.8

Average coauthors

2.75

Publications years

2011-2025 (15 years)

h-index

i10-index

m-index

0.33

o-index

g-index

w-index

Metrics description

h-index

A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

https://www.pnas.org/doi/full/10.1073/pnas.0507655102

i10-index

The number of the author's publications that received at least 10 links each.

https://scholar.googleblog.com/2011/11/google-scholar-citations-open-to-all.html

m-index

The researcher's m-index is numerically equal to the ratio of his h-index to the number of years that have passed since the first publication.

https://harzing.com/publications/white-papers/reflections-on-the-h-index

o-index

The geometric mean of the h-index and the number of citations of the most cited article of the scientist.

https://arxiv.org/abs/1511.01545

g-index

For a given set of articles, sorted in descending order of the number of citations that these articles received, the g-index is the largest number such that the g most cited articles received (in total) at least g² citations.

https://doi.org/10.1007/s11192-006-0144-7

w-index

If w articles of a researcher have at least 10w citations each and other publications are less than 10(w+1) citations, then the researcher's w-index is equal to w.

https://doi.org/10.1002/asi.21276

Top-100

Fields of science

	1 2 3 4 5 6
Archeology	Archeology, 6, 50% Archeology 6 publications, 50%
Multidisciplinary	Multidisciplinary, 1, 8.33% Multidisciplinary 1 publication, 8.33%
Food Science	Food Science, 1, 8.33% Food Science 1 publication, 8.33%
Agronomy and Crop Science	Agronomy and Crop Science, 1, 8.33% Agronomy and Crop Science 1 publication, 8.33%
Insect Science	Insect Science, 1, 8.33% Insect Science 1 publication, 8.33%
Oceanography	Oceanography, 1, 8.33% Oceanography 1 publication, 8.33%
Earth-Surface Processes	Earth-Surface Processes, 1, 8.33% Earth-Surface Processes 1 publication, 8.33%
Ecology	Ecology, 1, 8.33% Ecology 1 publication, 8.33%
History	History, 1, 8.33% History 1 publication, 8.33%
Horticulture	Horticulture, 1, 8.33% Horticulture 1 publication, 8.33%
	1 2 3 4 5 6

Journals

	1 2 3 4
Journal of Archaeological Science: Reports	Journal of Archaeological Science: Reports, 4, 33.33% Journal of Archaeological Science: Reports 4 publications, 33.33%
Journal of Archaeological Science	Journal of Archaeological Science, 2, 16.67% Journal of Archaeological Science 2 publications, 16.67%
Journal of Island and Coastal Archaeology	Journal of Island and Coastal Archaeology, 1, 8.33% Journal of Island and Coastal Archaeology 1 publication, 8.33%
Information (Switzerland)	Information (Switzerland), 1, 8.33% Information (Switzerland) 1 publication, 8.33%
Quaternary International	Quaternary International, 1, 8.33% Quaternary International 1 publication, 8.33%
Journal of Stored Products Research	Journal of Stored Products Research, 1, 8.33% Journal of Stored Products Research 1 publication, 8.33%
PLoS ONE	PLoS ONE, 1, 8.33% PLoS ONE 1 publication, 8.33%
Journal of the Sedimentological Society of Japan	Journal of the Sedimentological Society of Japan, 1, 8.33% Journal of the Sedimentological Society of Japan 1 publication, 8.33%
	1 2 3 4

Citing journals

	1 2 3 4 5 6 7 8
Journal of Archaeological Science: Reports	Journal of Archaeological Science: Reports, 8, 11.11% Journal of Archaeological Science: Reports 8 citations, 11.11%
Journal not defined	Journal not defined, 5, 6.94% Journal not defined 5 citations, 6.94%
Journal of Stored Products Research	Journal of Stored Products Research, 4, 5.56% Journal of Stored Products Research 4 citations, 5.56%
Quaternary International	Quaternary International, 3, 4.17% Quaternary International 3 citations, 4.17%
Proceedings of the National Academy of Sciences of the United States of America	Proceedings of the National Academy of Sciences of the United States of America, 2, 2.78% Proceedings of the National Academy of Sciences of the United States of America 2 citations, 2.78%
Journal of Island and Coastal Archaeology	Journal of Island and Coastal Archaeology, 2, 2.78% Journal of Island and Coastal Archaeology 2 citations, 2.78%
American Entomologist	American Entomologist, 2, 2.78% American Entomologist 2 citations, 2.78%
Journal of Archaeological Research	Journal of Archaeological Research, 2, 2.78% Journal of Archaeological Research 2 citations, 2.78%
Biological Invasions	Biological Invasions, 2, 2.78% Biological Invasions 2 citations, 2.78%
Scientific Reports	Scientific Reports, 2, 2.78% Scientific Reports 2 citations, 2.78%
Holocene	Holocene, 2, 2.78% Holocene 2 citations, 2.78%
Crop Protection	Crop Protection, 2, 2.78% Crop Protection 2 citations, 2.78%
Radiocarbon	Radiocarbon, 2, 2.78% Radiocarbon 2 citations, 2.78%
Chinese Science Bulletin (Chinese Version)	Chinese Science Bulletin (Chinese Version), 2, 2.78% Chinese Science Bulletin (Chinese Version) 2 citations, 2.78%
Evolutionary Human Sciences	Evolutionary Human Sciences, 2, 2.78% Evolutionary Human Sciences 2 citations, 2.78%
World Archaeology	World Archaeology, 1, 1.39% World Archaeology 1 citation, 1.39%
Florida Entomologist	Florida Entomologist, 1, 1.39% Florida Entomologist 1 citation, 1.39%
PeerJ	PeerJ, 1, 1.39% PeerJ 1 citation, 1.39%
Journal of the North Atlantic	Journal of the North Atlantic, 1, 1.39% Journal of the North Atlantic 1 citation, 1.39%
Information (Switzerland)	Information (Switzerland), 1, 1.39% Information (Switzerland) 1 citation, 1.39%
Economic Botany	Economic Botany, 1, 1.39% Economic Botany 1 citation, 1.39%
Quaternary Science Reviews	Quaternary Science Reviews, 1, 1.39% Quaternary Science Reviews 1 citation, 1.39%
Animals	Animals, 1, 1.39% Animals 1 citation, 1.39%
Agronomy	Agronomy, 1, 1.39% Agronomy 1 citation, 1.39%
Journal of Asia-Pacific Biodiversity	Journal of Asia-Pacific Biodiversity, 1, 1.39% Journal of Asia-Pacific Biodiversity 1 citation, 1.39%
Insects	Insects, 1, 1.39% Insects 1 citation, 1.39%
Economic and Environmental Geology	Economic and Environmental Geology, 1, 1.39% Economic and Environmental Geology 1 citation, 1.39%
Archaeological Research in Asia	Archaeological Research in Asia, 1, 1.39% Archaeological Research in Asia 1 citation, 1.39%
Microchemical Journal	Microchemical Journal, 1, 1.39% Microchemical Journal 1 citation, 1.39%
Ecological Entomology	Ecological Entomology, 1, 1.39% Ecological Entomology 1 citation, 1.39%
Journal of Archaeological Science	Journal of Archaeological Science, 1, 1.39% Journal of Archaeological Science 1 citation, 1.39%
Plants	Plants, 1, 1.39% Plants 1 citation, 1.39%
Quaternary Research	Quaternary Research, 1, 1.39% Quaternary Research 1 citation, 1.39%
Archaeological and Anthropological Sciences	Archaeological and Anthropological Sciences, 1, 1.39% Archaeological and Anthropological Sciences 1 citation, 1.39%
Bulletin of Entomological Research	Bulletin of Entomological Research, 1, 1.39% Bulletin of Entomological Research 1 citation, 1.39%
Environmental Archaeology	Environmental Archaeology, 1, 1.39% Environmental Archaeology 1 citation, 1.39%
Journal of Field Archaeology	Journal of Field Archaeology, 1, 1.39% Journal of Field Archaeology 1 citation, 1.39%
Heritage Science	Heritage Science, 1, 1.39% Heritage Science 1 citation, 1.39%
Frontiers in Microbiology	Frontiers in Microbiology, 1, 1.39% Frontiers in Microbiology 1 citation, 1.39%
PLoS ONE	PLoS ONE, 1, 1.39% PLoS ONE 1 citation, 1.39%
IEEE Access	IEEE Access, 1, 1.39% IEEE Access 1 citation, 1.39%
Archaeology International	Archaeology International, 1, 1.39% Archaeology International 1 citation, 1.39%
Recherches amérindiennes au Québec	Recherches amérindiennes au Québec, 1, 1.39% Recherches amérindiennes au Québec 1 citation, 1.39%
Evolutionary Studies	Evolutionary Studies, 1, 1.39% Evolutionary Studies 1 citation, 1.39%
The Science of Human History in Asia and the Pacific	The Science of Human History in Asia and the Pacific, 1, 1.39% The Science of Human History in Asia and the Pacific 1 citation, 1.39%

	1 2 3 4 5 6 7 8

Publishers

	1 2 3 4 5 6 7 8
Elsevier	Elsevier, 8, 66.67% Elsevier 8 publications, 66.67%
Taylor & Francis	Taylor & Francis, 1, 8.33% Taylor & Francis 1 publication, 8.33%
MDPI	MDPI, 1, 8.33% MDPI 1 publication, 8.33%
Public Library of Science (PLoS)	Public Library of Science (PLoS), 1, 8.33% Public Library of Science (PLoS) 1 publication, 8.33%
The Sedimentological Society of Japan	The Sedimentological Society of Japan, 1, 8.33% The Sedimentological Society of Japan 1 publication, 8.33%
	1 2 3 4 5 6 7 8

Organizations from articles

	2 4 6 8 10 12
Kumamoto University	Kumamoto University, 11, 91.67% Kumamoto University 11 publications, 91.67%
University of Oregon	University of Oregon, 2, 16.67% University of Oregon 2 publications, 16.67%
Organization not defined	Organization not defined, 1, 8.33% Organization not defined 1 publication, 8.33%
Brawijaya University	Brawijaya University, 1, 8.33% Brawijaya University 1 publication, 8.33%
Kyungpook National University	Kyungpook National University, 1, 8.33% Kyungpook National University 1 publication, 8.33%
Hokkaido University	Hokkaido University, 1, 8.33% Hokkaido University 1 publication, 8.33%
Kyushu University	Kyushu University, 1, 8.33% Kyushu University 1 publication, 8.33%
Kagoshima University	Kagoshima University, 1, 8.33% Kagoshima University 1 publication, 8.33%
	2 4 6 8 10 12

Countries from articles

	2 4 6 8 10 12
Japan	Japan, 11, 91.67% Japan 11 publications, 91.67%
USA	USA, 2, 16.67% USA 2 publications, 16.67%
Republic of Korea	Republic of Korea, 2, 16.67% Republic of Korea 2 publications, 16.67%
Country not defined	Country not defined, 1, 8.33% Country not defined 1 publication, 8.33%
China	China, 1, 8.33% China 1 publication, 8.33%
Indonesia	Indonesia, 1, 8.33% Indonesia 1 publication, 8.33%
	2 4 6 8 10 12

Citing organizations

	2 4 6 8 10 12 14 16 18
Organization not defined	Organization not defined, 18, 25% Organization not defined 18 citations, 25%
University of Oregon	University of Oregon, 7, 9.72% University of Oregon 7 citations, 9.72%
Kumamoto University	Kumamoto University, 6, 8.33% Kumamoto University 6 citations, 8.33%
University of Cambridge	University of Cambridge, 4, 5.56% University of Cambridge 4 citations, 5.56%
University of Edinburgh	University of Edinburgh, 3, 4.17% University of Edinburgh 3 citations, 4.17%
University of Thessaly	University of Thessaly, 3, 4.17% University of Thessaly 3 citations, 4.17%
Meiji University	Meiji University, 3, 4.17% Meiji University 3 citations, 4.17%
University of York	University of York, 3, 4.17% University of York 3 citations, 4.17%
Free University of Berlin	Free University of Berlin, 2, 2.78% Free University of Berlin 2 citations, 2.78%
University College London	University College London, 2, 2.78% University College London 2 citations, 2.78%
Korea University	Korea University, 2, 2.78% Korea University 2 citations, 2.78%
Kyungpook National University	Kyungpook National University, 2, 2.78% Kyungpook National University 2 citations, 2.78%
University of Aberdeen	University of Aberdeen, 2, 2.78% University of Aberdeen 2 citations, 2.78%
Nagoya University	Nagoya University, 2, 2.78% Nagoya University 2 citations, 2.78%
Agricultural Research Service	Agricultural Research Service, 2, 2.78% Agricultural Research Service 2 citations, 2.78%
Nazarbayev University	Nazarbayev University, 1, 1.39% Nazarbayev University 1 citation, 1.39%
V.S. Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the Russian Academy of Sciences	V.S. Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the Russian Academy of Sciences, 1, 1.39% V.S. Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the Russian Academy of Sciences 1 citation, 1.39%
Ankara University	Ankara University, 1, 1.39% Ankara University 1 citation, 1.39%
Zhejiang University	Zhejiang University, 1, 1.39% Zhejiang University 1 citation, 1.39%
University of Chinese Academy of Sciences	University of Chinese Academy of Sciences, 1, 1.39% University of Chinese Academy of Sciences 1 citation, 1.39%
Sichuan University	Sichuan University, 1, 1.39% Sichuan University 1 citation, 1.39%
Jilin University	Jilin University, 1, 1.39% Jilin University 1 citation, 1.39%
Aix-Marseille University	Aix-Marseille University, 1, 1.39% Aix-Marseille University 1 citation, 1.39%
University of Lisbon	University of Lisbon, 1, 1.39% University of Lisbon 1 citation, 1.39%
University of Bordeaux	University of Bordeaux, 1, 1.39% University of Bordeaux 1 citation, 1.39%
ETH Zurich	ETH Zurich, 1, 1.39% ETH Zurich 1 citation, 1.39%
Shaanxi Normal University	Shaanxi Normal University, 1, 1.39% Shaanxi Normal University 1 citation, 1.39%
University of Basel	University of Basel, 1, 1.39% University of Basel 1 citation, 1.39%
University of Bologna	University of Bologna, 1, 1.39% University of Bologna 1 citation, 1.39%
UiT The Arctic University of Norway	UiT The Arctic University of Norway, 1, 1.39% UiT The Arctic University of Norway 1 citation, 1.39%
University of Nottingham	University of Nottingham, 1, 1.39% University of Nottingham 1 citation, 1.39%
National Taiwan University	National Taiwan University, 1, 1.39% National Taiwan University 1 citation, 1.39%
University of Molise	University of Molise, 1, 1.39% University of Molise 1 citation, 1.39%
Stanford University	Stanford University, 1, 1.39% Stanford University 1 citation, 1.39%
Walter Sisulu University	Walter Sisulu University, 1, 1.39% Walter Sisulu University 1 citation, 1.39%
Brawijaya University	Brawijaya University, 1, 1.39% Brawijaya University 1 citation, 1.39%
Seoul National University	Seoul National University, 1, 1.39% Seoul National University 1 citation, 1.39%
Hanyang University	Hanyang University, 1, 1.39% Hanyang University 1 citation, 1.39%
Korea University of Science and Technology	Korea University of Science and Technology, 1, 1.39% Korea University of Science and Technology 1 citation, 1.39%
Washington University in St. Louis	Washington University in St. Louis, 1, 1.39% Washington University in St. Louis 1 citation, 1.39%
Chungnam National University	Chungnam National University, 1, 1.39% Chungnam National University 1 citation, 1.39%
Mokpo National University	Mokpo National University, 1, 1.39% Mokpo National University 1 citation, 1.39%
Korea Institute of Geoscience and Mineral Resources	Korea Institute of Geoscience and Mineral Resources, 1, 1.39% Korea Institute of Geoscience and Mineral Resources 1 citation, 1.39%
Kyoto University	Kyoto University, 1, 1.39% Kyoto University 1 citation, 1.39%
Agricultural University of Athens	Agricultural University of Athens, 1, 1.39% Agricultural University of Athens 1 citation, 1.39%
Kyushu University	Kyushu University, 1, 1.39% Kyushu University 1 citation, 1.39%
Teikyo University	Teikyo University, 1, 1.39% Teikyo University 1 citation, 1.39%
University of Yamanashi	University of Yamanashi, 1, 1.39% University of Yamanashi 1 citation, 1.39%
Chuo University	Chuo University, 1, 1.39% Chuo University 1 citation, 1.39%
NOVA University Lisbon	NOVA University Lisbon, 1, 1.39% NOVA University Lisbon 1 citation, 1.39%
Université Laval	Université Laval, 1, 1.39% Université Laval 1 citation, 1.39%
University of Ljubljana	University of Ljubljana, 1, 1.39% University of Ljubljana 1 citation, 1.39%
Institute of Geology and Geophysics, Chinese Academy of Sciences	Institute of Geology and Geophysics, Chinese Academy of Sciences, 1, 1.39% Institute of Geology and Geophysics, Chinese Academy of Sciences 1 citation, 1.39%
Bournemouth University	Bournemouth University, 1, 1.39% Bournemouth University 1 citation, 1.39%
University of São Paulo	University of São Paulo, 1, 1.39% University of São Paulo 1 citation, 1.39%
Universidade Federal de Viçosa	Universidade Federal de Viçosa, 1, 1.39% Universidade Federal de Viçosa 1 citation, 1.39%
Smithsonian Institution	Smithsonian Institution, 1, 1.39% Smithsonian Institution 1 citation, 1.39%

	2 4 6 8 10 12 14 16 18

Citing countries

	2 4 6 8 10 12 14
United Kingdom	United Kingdom, 14, 19.44% United Kingdom 14 citations, 19.44%
Japan	Japan, 14, 19.44% Japan 14 citations, 19.44%
Country not defined	Country not defined, 13, 18.06% Country not defined 13 citations, 18.06%
USA	USA, 13, 18.06% USA 13 citations, 18.06%
China	China, 9, 12.5% China 9 citations, 12.5%
Republic of Korea	Republic of Korea, 9, 12.5% Republic of Korea 9 citations, 12.5%
Germany	Germany, 4, 5.56% Germany 4 citations, 5.56%
Greece	Greece, 4, 5.56% Greece 4 citations, 5.56%
Portugal	Portugal, 3, 4.17% Portugal 3 citations, 4.17%
France	France, 2, 2.78% France 2 citations, 2.78%
Italy	Italy, 2, 2.78% Italy 2 citations, 2.78%
Sweden	Sweden, 2, 2.78% Sweden 2 citations, 2.78%
Russia	Russia, 1, 1.39% Russia 1 citation, 1.39%
Kazakhstan	Kazakhstan, 1, 1.39% Kazakhstan 1 citation, 1.39%
Antigua and Barbuda	Antigua and Barbuda, 1, 1.39% Antigua and Barbuda 1 citation, 1.39%
Belgium	Belgium, 1, 1.39% Belgium 1 citation, 1.39%
Brazil	Brazil, 1, 1.39% Brazil 1 citation, 1.39%
Indonesia	Indonesia, 1, 1.39% Indonesia 1 citation, 1.39%
Iceland	Iceland, 1, 1.39% Iceland 1 citation, 1.39%
Spain	Spain, 1, 1.39% Spain 1 citation, 1.39%
Canada	Canada, 1, 1.39% Canada 1 citation, 1.39%
Norway	Norway, 1, 1.39% Norway 1 citation, 1.39%
Serbia	Serbia, 1, 1.39% Serbia 1 citation, 1.39%
Slovenia	Slovenia, 1, 1.39% Slovenia 1 citation, 1.39%
Turkey	Turkey, 1, 1.39% Turkey 1 citation, 1.39%
Croatia	Croatia, 1, 1.39% Croatia 1 citation, 1.39%
Czech Republic	Czech Republic, 1, 1.39% Czech Republic 1 citation, 1.39%
Switzerland	Switzerland, 1, 1.39% Switzerland 1 citation, 1.39%
South Africa	South Africa, 1, 1.39% South Africa 1 citation, 1.39%
	2 4 6 8 10 12 14

We do not take into account publications without a DOI.
Statistics recalculated daily.

Data by ORCID

0000-0002-4494-8640

Vegetation History and Archaeobotany (1)