Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Goal-directed requirements acquisition
19931.2k citationsAxel van Lamsweerde, Stephen Fickas et al.Science of Computer Programmingprofile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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Countries citing papers authored by Stephen Fickas
Since
Specialization
Citations
This map shows the geographic impact of Stephen Fickas'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 Stephen Fickas with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Stephen Fickas more than expected).
This network shows the impact of papers produced by Stephen Fickas. 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 Stephen Fickas. The network helps show where Stephen Fickas may publish in the future.
Co-authorship network of co-authors of Stephen Fickas
This figure shows the co-authorship network connecting the top 25 collaborators of Stephen Fickas.
A scholar is included among the top collaborators of Stephen Fickas 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 Stephen Fickas. Stephen Fickas is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Giorgini, Paolo, et al.. (2011). Detecting Conflicts between Functional and Security Requirements with Secure Tropos: John Rusnak and the Allied Irish Bank. 337–362.6 indexed citations
4.
Giorgini, Paolo, et al.. (2011). Secure Tropos: Extending i* and Tropos to Model Security Throughout the Development Process. 363–402.1 indexed citations
Kortuem, Gerd, Stephen Fickas, & Zary Segall. (2007). Architectural Issues in Supporting Ad-hoc Collaboration with Wearable Computers.2 indexed citations
9.
Cheng, Betty H. C., Rogério de Lemos, Stephen Fickas, et al.. (2006). Proceedings of the 2006 international workshop on Self-adaptation and self-managing systems. International Conference on Software Engineering.4 indexed citations
Lamsweerde, Axel van, et al.. (1993). Goal-directed requirements acquisition. Science of Computer Programming. 20(1-2). 3–50.1170 indexed citations breakdown →
Fickas, Stephen, et al.. (1988). Being suspicious: critiquing problem specifications. National Conference on Artificial Intelligence. 19–24.21 indexed citations
Erman, Lee D., Philip London, & Stephen Fickas. (1981). The design and an example use of Hearsay-III. International Joint Conference on Artificial Intelligence. 409–415.62 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.