This map shows the geographic impact of Jan Romportl'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 Jan Romportl with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jan Romportl more than expected).
This network shows the impact of papers produced by Jan Romportl. 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 Jan Romportl. The network helps show where Jan Romportl may publish in the future.
Co-authorship network of co-authors of Jan Romportl
This figure shows the co-authorship network connecting the top 25 collaborators of Jan Romportl.
A scholar is included among the top collaborators of Jan Romportl 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 Jan Romportl. Jan Romportl is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Matoušek, Jindřich, Daniel Tihelka, Jan Romportl, & Josef Psutka. (2012). Slovak Unit-Selection Speech Synthesis: Creating a New Slovak Voice within a Czech TTS System ARTIC. Digital Library (University of West Bohemia). 39.1 indexed citations
9.
Romportl, Jan, et al.. (2010). Application of expressive TTS synthesis in an advanced ECA system. Digital Library (University of West Bohemia). 120–125.1 indexed citations
Romportl, Jan. (2010). On the Objectivity of Prosodic Phrases. Digital Library (University of West Bohemia). 96.2 indexed citations
12.
Matoušek, Jindřich, Daniel Tihelka, & Jan Romportl. (2008). Building of a speech corpus optimised for unit selection TTS synthesis. Language Resources and Evaluation.21 indexed citations
13.
Romportl, Jan, et al.. (2008). Speech synthesis and emotions: a compromise between flexibility and believability. Digital Library (University of West Bohemia).2 indexed citations
Romportl, Jan & Jiří Kala. (2007). Prosody modelling in czech text-to-speech synthesis. Digital Library (University of West Bohemia). 200–205.7 indexed citations
17.
Matoušek, Jindřich & Jan Romportl. (2006). On building phonetically and prosodically rich speech corpus for text-to-speech synthesis. Digital Library (University of West Bohemia). 325–330.9 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.