This map shows the geographic impact of E.J. Hoffman'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 E.J. Hoffman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites E.J. Hoffman more than expected).
This network shows the impact of papers produced by E.J. Hoffman. 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 E.J. Hoffman. The network helps show where E.J. Hoffman may publish in the future.
Co-authorship network of co-authors of E.J. Hoffman
This figure shows the co-authorship network connecting the top 25 collaborators of E.J. Hoffman.
A scholar is included among the top collaborators of E.J. Hoffman 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 E.J. Hoffman. E.J. Hoffman is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Llacer, J., Eugene Veklerov, L.R. Baxter, et al.. (1993). Results of a clinical receiver operating characteristic study comparing filtered backprojection and maximum likelihood estimator images in FDG PET studies.. PubMed. 34(7). 1198–203.54 indexed citations
9.
Llacer, J., Eugene Veklerov, L.R. Baxter, et al.. (1992). Results of a Clinical ROC Study Comparing Filtered Backprojection and Maximum Likelihood Estimator Images in FDG PET Studies. eScholarship (California Digital Library).2 indexed citations
10.
Dahlbom, Magnus, E.J. Hoffman, Carl K. Hoh, et al.. (1992). Whole-body positron emission tomography: Part I. Methods and performance characteristics.. PubMed. 33(6). 1191–9.157 indexed citations
11.
Weinberg, I., S.C. Huang, E.J. Hoffman, et al.. (1988). Validation of PET-acquired input functions for cardiac studies.. PubMed. 29(2). 241–7.124 indexed citations
12.
Veklerov, Eugene, J. Llacer, & E.J. Hoffman. (1987). MLE (Maximum Likelihood Estimator) reconstruction of a brain phantom using a Monte Carlo transition matrix and a statistical stopping rule. University of North Texas Digital Library (University of North Texas).1 indexed citations
13.
Huang, S.C., Markus Schwaiger, Richard E. Carson, et al.. (1985). Quantitative measurement of myocardial blood flow with oxygen-15 water and positron computed tomography: an assessment of potential and problems.. PubMed. 26(6). 616–25.48 indexed citations
14.
Parodi, Oberdan, H. R. Schelbert, Markus Schwaiger, et al.. (1984). Artifactual reductions of segmental indicator tissue concentrations on tomographic images of the heart caused by regional wall motion abnormalities. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information).2 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.