Koichi Oka
About
In The Last Decade
Co-authorship network of co-authors of Koichi Oka
This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Oka. A scholar is included among the top collaborators of Koichi Oka based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koichi Oka. Koichi Oka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
Koichi Oka
92 papers receiving 948 citations
Fields of papers citing papers by Koichi Oka
This network shows the impact of papers produced by Koichi Oka. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Koichi Oka. The network helps show where Koichi Oka may publish in the future.
Countries citing papers authored by Koichi Oka
This map shows the geographic impact of Koichi Oka's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Koichi Oka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koichi Oka more than expected).
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar’s output or impact.