This map shows the geographic impact of Jorma Virtamo'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 Jorma Virtamo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jorma Virtamo more than expected).
This network shows the impact of papers produced by Jorma Virtamo. 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 Jorma Virtamo. The network helps show where Jorma Virtamo may publish in the future.
Co-authorship network of co-authors of Jorma Virtamo
This figure shows the co-authorship network connecting the top 25 collaborators of Jorma Virtamo.
A scholar is included among the top collaborators of Jorma Virtamo 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 Jorma Virtamo. Jorma Virtamo is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Lassila, Pasi, Aleksi Penttinen, & Jorma Virtamo. (2006). The 3rd ACM International Workshop on Performance Evaluation of Wireless Ad Hoc, Sensor, and Ubiquitous Networks (PE-WASUN 2006), Torremolinos, Spain, 2006.1 indexed citations
Virtamo, Jorma, et al.. (2002). Analytical Results on the Stochastic Behaviour of an Averaged Queue Length. Data Archiving and Networked Services (DANS).1 indexed citations
14.
Virtamo, Jorma, et al.. (1999). Broadband Network Traffic: Performance Evaluation and Design of Broadband Multiservice Networks: Final Report of Action Cost 242. Springer eBooks.61 indexed citations
15.
Lassila, Pasi & Jorma Virtamo. (1999). Efficient Importance Sampling for Monte Carlo Simulation of Loss Systems.11 indexed citations
16.
Virtamo, Jorma & Samuli Aalto. (1998). Calculation of time-dependent blocking probabilities.4 indexed citations
17.
Lassila, Pasi & Jorma Virtamo. (1998). Efficient Monte Carlo Simulation of Product Form Systems.2 indexed citations
18.
Roberts, J. H., et al.. (1996). Broadband network traffic [i.e. teletraffic] : performance evaluation and design of broadband multiservice networks : final report of action COST 242. Springer eBooks.3 indexed citations
19.
Roberts, J. H., et al.. (1996). Broadband Network Teletraffic: Final Report of Action COST 242.134 indexed citations
20.
Aalto, Samuli, et al.. (1992). Performance aspects of streaming and message modes of interworking. IOS Press eBooks. 261–278.1 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.