This map shows the geographic impact of Ralf Engel'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 Ralf Engel with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ralf Engel more than expected).
This network shows the impact of papers produced by Ralf Engel. 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 Ralf Engel. The network helps show where Ralf Engel may publish in the future.
Co-authorship network of co-authors of Ralf Engel
This figure shows the co-authorship network connecting the top 25 collaborators of Ralf Engel.
A scholar is included among the top collaborators of Ralf Engel 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 Ralf Engel. Ralf Engel is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
All Works
14 of 14 papers shown
1.
Schick, Sylvia, Ralf Engel, André Eggers, et al.. (2008). Summary report on work package 3 "Types of Factors". Loughborough University Institutional Repository (Loughborough University).1 indexed citations
2.
Elslande, Pierre Van, et al.. (2008). Analyzing human factors in road accidents: TRACE WP5 Summary Report. Figshare.8 indexed citations
3.
Buitelaar, Paul, Thierry Declerck, Anette Frank, et al.. (2006). LingInfo: Design and Applications of a Model for the Integration of Linguistic Information in Ontologies. PUB – Publications at Bielefeld University (Bielefeld University). 32.29 indexed citations
Reithinger, Norbert, Simon Bergweiler, Ralf Engel, et al.. (2005). A look under the hood. 1. 159–166.18 indexed citations
6.
Alexandersson, Jan, Tilman Becker, Ralf Engel, et al.. (2004). Ends-based Dialogue Processing. North American Chapter of the Association for Computational Linguistics. 25–32.3 indexed citations
7.
Porzel, Robert, et al.. (2003). More on Less: Further Applications of Ontologies in Multi-Modal Dialogue Systems. TUbilio (Technical University of Darmstadt).4 indexed citations
8.
Reithinger, Norbert, Jan Alexandersson, Tilman Becker, et al.. (2003). SmartKom. 101–108.30 indexed citations
9.
Reithinger, Norbert, Jan Alexandersson, Tilman Becker, et al.. (2003). SmartKom.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.