This map shows the geographic impact of H. Kawashima'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 H. Kawashima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. Kawashima more than expected).
This network shows the impact of papers produced by H. Kawashima. 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 H. Kawashima. The network helps show where H. Kawashima may publish in the future.
Co-authorship network of co-authors of H. Kawashima
This figure shows the co-authorship network connecting the top 25 collaborators of H. Kawashima.
A scholar is included among the top collaborators of H. Kawashima 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 H. Kawashima. H. Kawashima is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Okada, Ryo, et al.. (2007). Preliminary Study on Driving Behavior of Non-Japanese Drivers Using Various Types of Route Guidance Information. 28(3). 399–405.1 indexed citations
Kawashima, H., et al.. (2000). STUDY ON HUMAN INTERFACE FOR MULTI-INFORMATION ENVIRONMENT OF IN-VEHICLE INFORMATION SYSTEMS - INTEGRATION OF HEADWAY WARNING AND BLIND-SPOT WARNING INFORMATION.2 indexed citations
11.
Kawashima, H., et al.. (1999). A HEURISTIC APPROACH BASED ON THE STRING MODEL TO SOLVE THE VEHICLE ROUTING PROBLEM WITH VARIOUS CONDITIONS.1 indexed citations
12.
Kawashima, H., et al.. (1999). A STUDY ON DRIVERS' CHARACTERISTICS BASED ON THE MENTAL STRESS WHEN USING THE COMMUNICATION SERVICES OF IN-VEHICLE INFORMATION SYSTEMS.1 indexed citations
13.
Kawashima, H., et al.. (1997). THE SUGGESTION OF TOTAL BENEFIT ANALYSIS INCLUDING ENVIRONMENTAL IMPACTS UNDER TRAFFIC CONTROL IN URBAN AREA.1 indexed citations
14.
Kawashima, H., et al.. (1996). ANALYSIS OF A DYNAMIC ROUTE GUIDANCE SYSTEM CONSIDERING THE INFLUENCES OF INTERSECTIONS ON AN ORDINARY ROAD NETWORK.1 indexed citations
15.
Kawashima, H., et al.. (1994). THE JAPANESE APPROACH TO IVHS STANDARDS.1 indexed citations
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.