Alpo Värri

2.6k total citations
105 papers, 1.9k citations indexed

About

Alpo Värri is a scholar working on Cognitive Neuroscience, Cardiology and Cardiovascular Medicine and Biomedical Engineering. According to data from OpenAlex, Alpo Värri has authored 105 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Cognitive Neuroscience, 33 papers in Cardiology and Cardiovascular Medicine and 31 papers in Biomedical Engineering. Recurrent topics in Alpo Värri's work include EEG and Brain-Computer Interfaces (37 papers), Non-Invasive Vital Sign Monitoring (27 papers) and Sleep and Wakefulness Research (25 papers). Alpo Värri is often cited by papers focused on EEG and Brain-Computer Interfaces (37 papers), Non-Invasive Vital Sign Monitoring (27 papers) and Sleep and Wakefulness Research (25 papers). Alpo Värri collaborates with scholars based in Finland, Germany and United States. Alpo Värri's co-authors include Jóel Hasan, Sari‐Leena Himanen, B. Kemp, Sakari Junnila, Eero Huupponen, John Gade, Kim Dremstrup, Alessandro Pasquale De Rosa, Alireza Akhbardeh and Teemu Koivistoinen and has published in prestigious journals such as SHILAP Revista de lepidopterología, Electroencephalography and Clinical Neurophysiology and Neurocomputing.

In The Last Decade

Alpo Värri

101 papers receiving 1.8k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Alpo Värri 1.1k 637 555 432 310 105 1.9k
Xi Long 920 0.9× 1.1k 1.7× 599 1.1× 326 0.8× 433 1.4× 152 2.6k
Do‐Un Jeong 541 0.5× 528 0.8× 362 0.7× 327 0.8× 467 1.5× 118 1.8k
Pedro Fonseca 859 0.8× 857 1.3× 556 1.0× 472 1.1× 673 2.2× 95 1.7k
Miguel Ángel Mañanas 980 0.9× 602 0.9× 229 0.4× 96 0.2× 219 0.7× 126 2.2k
H. Nazeran 654 0.6× 872 1.4× 760 1.4× 137 0.3× 215 0.7× 108 2.0k
Kwang Suk Park 743 0.7× 1.7k 2.7× 1.2k 2.2× 425 1.0× 476 1.5× 108 2.8k
Esther Rodriguez–Villegas 1.0k 0.9× 1.5k 2.4× 529 1.0× 108 0.3× 206 0.7× 158 3.4k
Fernando Andreotti 1.2k 1.1× 412 0.6× 733 1.3× 316 0.7× 349 1.1× 27 1.9k
Daniel Álvarez 990 0.9× 1.0k 1.6× 461 0.8× 269 0.6× 1.7k 5.4× 129 3.1k
Antonio G. Ravelo‐García 410 0.4× 504 0.8× 208 0.4× 285 0.7× 695 2.2× 70 1.3k

Countries citing papers authored by Alpo Värri

Since Specialization
Citations

This map shows the geographic impact of Alpo Värri'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 Alpo Värri with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Alpo Värri more than expected).

Fields of papers citing papers by Alpo Värri

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alpo Värri. 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 Alpo Värri. The network helps show where Alpo Värri may publish in the future.

Co-authorship network of co-authors of Alpo Värri

This figure shows the co-authorship network connecting the top 25 collaborators of Alpo Värri. A scholar is included among the top collaborators of Alpo Värri 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 Alpo Värri. Alpo Värri is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Värri, Alpo. (2023). The impact of EU Digital Services Act and Digital Markets Act on health information systems. SHILAP Revista de lepidopterología. 15(1). 2 indexed citations
2.
Värri, Alpo, et al.. (2022). Heart pulse demodulation from Emfit mattress sensor using spectral and source separation techniques.. Computing in cardiology. 1 indexed citations
3.
Rubel, P., Jocelyne Fayn, Peter W. Macfarlane, et al.. (2021). The History and Challenges of SCP-ECG: The Standard Communication Protocol for Computer-Assisted Electrocardiography. SHILAP Revista de lepidopterología. 2(3). 384–409. 11 indexed citations
4.
Värri, Alpo, et al.. (2020). The Definition of Informatics Competencies in Finnish Healthcare and Social Welfare Education. Studies in health technology and informatics. 270. 1143–1147. 7 indexed citations
5.
Värri, Alpo, et al.. (2019). IEC 62304 Ed. 2: Software Life Cycle Standard for Health Software. Studies in health technology and informatics. 264. 868–872. 3 indexed citations
6.
Värri, Alpo, et al.. (2018). The Digi-NewB project for preterm infant sepsis risk and maturity analysis. SHILAP Revista de lepidopterología. 10(2-3). 4 indexed citations
7.
Värri, Alpo, et al.. (2015). Experiments of the sonification of the sleep electroencephalogram. SHILAP Revista de lepidopterología. 7. 65–74. 2 indexed citations
8.
Lukin, Vladimir, et al.. (2008). Lossy compression of multichannel ECG based on 2-D DCT and pre-processing. International Conference on Modern Problems of Radio Engineering, Telecommunications and Computer Science. 159–162. 13 indexed citations
9.
Saastamoinen, A., Eero Huupponen, Alpo Värri, Jóel Hasan, & Sari‐Leena Himanen. (2006). Computer program for automated sleep depth estimation. Computer Methods and Programs in Biomedicine. 82(1). 58–66. 17 indexed citations
10.
Junnila, Sakari, et al.. (2006). A Wireless Ballistocardiographic Chair. PubMed. 2006. 5932–5935. 30 indexed citations
11.
Huupponen, Eero, Wim De Clercq, Germán Gómez-Herrero, et al.. (2006). Determination of dominant simulated spindle frequency with different methods. Journal of Neuroscience Methods. 156(1-2). 275–283. 19 indexed citations
12.
Huupponen, Eero, A. Saastamoinen, Atte Joutsen, et al.. (2005). Anteroposterior Difference in EEG Sleep Depth Measure is Reduced in Apnea Patients. Journal of Medical Systems. 29(5). 527–538. 12 indexed citations
13.
Huupponen, Eero, Sari‐Leena Himanen, Jóel Hasan, & Alpo Värri. (2003). Automatic analysis of electro-encephalogram sleep spindle frequency throughout the night. Medical & Biological Engineering & Computing. 41(6). 727–732. 19 indexed citations
14.
Huupponen, Eero, Sari‐Leena Himanen, Alpo Värri, et al.. (2002). Fuzzy detection of EEG alpha without amplitude thresholding. Artificial Intelligence in Medicine. 24(2). 133–147. 16 indexed citations
15.
Peter, J. H., Thomas Penzel, Alpo Värri, et al.. (2000). Vigilance stages and performance in OSAS patients in a monotonous reaction time task. Clinical Neurophysiology. 111(6). 1130–1136. 8 indexed citations
16.
Conradt, Regina, Ulrich Brandenburg, Thomas Penzel, et al.. (1999). Vigilance transitions in reaction time test: a method of describing the state of alertness more objectively. Clinical Neurophysiology. 110(9). 1499–1509. 15 indexed citations
17.
Kemp, Bruce E., et al.. (1998). EDF: a simple format for graphical analysis results from polygraphic Siesta recordings. Journal of Sleep Research. 7. 3 indexed citations
18.
Dremstrup, Kim, et al.. (1997). Europäisches Neurologisches Netzwerk (ENN). VBN Forskningsportal (Aalborg Universitet). 279–282. 1 indexed citations
19.
Dremstrup, Kim, Thomas Penzel, Alpo Värri, C Guilleminault, & Teresa Paiva. (1997). Sleep, headache and epilepsy reference database with Internet access: The European Neurological Network Project. VBN Forskningsportal (Aalborg Universitet). 35.
20.
Värri, Alpo, Günther Hellmann, Thomas Penzel, et al.. (1996). Object oriented design of a new, standard file exchange format for vital signs. Medical & Biological Engineering & Computing. 34. 407–408. 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.

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