Constantine Kotropoulos

5.9k citations

205 papers · 3.9k indexed · 1 hit paper · h-index 34

Impact in

Signal Processing top 0.2%
- Speech and Audio Processing
- Music and Audio Processing
Computer Vision and Pattern Recognition top 0.5%
- Face and Expression Recognition
- Face recognition and analysis
- Image and Signal Denoising Methods
- Advanced Image and Video Retrieval Techniques

Papers in ⓘ

Signal Processing 115
- Speech and Audio Processing 77
- Music and Audio Processing 66
Computer Vision and Pattern Recognition 123
- Face and Expression Recognition 37
- Advanced Image and Video Retrieval Techniques 26
- Image and Signal Denoising Methods 25
- Face recognition and analysis 23
- Image Retrieval and Classification Techniques 20

Co-authors: Dimitrios Ververidis (15 shared papers)Ioannis Pitas (74 shared papers)Yannis Panagakis (20 shared papers)Anastasios Tefas (12 shared papers)Gonzalo R. Arce (9 shared papers)Margarita Kotti (17 shared papers)Emmanouil Benetos (16 shared papers)George Almpanidis (5 shared papers)
Journals: Signal Processing (8 papers)Pattern Recognition (5 papers)IEEE Transactions on Audio Speech and Language Processing (5 papers)IEEE Transactions on Signal Processing (5 papers)IEEE Transactions on Image Processing (4 papers)
Partner nations: Greece United States United Kingdom

In The Last Decade

Constantine Kotropoulos

193 papers receiving 3.6k citations

Hit Papers

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Emotional speech recognition: Resources, features, and methods 2006 · 627 citations

Peers

Countries citing papers authored by Constantine Kotropoulos

Since Specialization

Citations

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

Fields of papers citing papers by Constantine Kotropoulos

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Constantine Kotropoulos, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Constantine Kotropoulos Line = papers co-authored together Constantine Kotropoulos links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 205 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Emotional speech recognition: Resources, features, and methods Speech Communication ·Dimitrios Ververidis, Constantine Kotropoulos Hit paper breakdown →	2006	627
2	Automatic emotional speech classification Dimitrios Ververidis, Constantine Kotropoulos, Ioannis Pitas	2004	146
3	Using support vector machines to enhance the performance of elastic graph matching for frontal face authentication IEEE Transactions on Pattern Analysis and Machine Intelligence ·Anastasios Tefas, Constantine Kotropoulos, Ioannis Pitas	2001	143
4	Rule-based face detection in frontal views Constantine Kotropoulos, Ioannis Pitas	2002	111
5	Fast and accurate sequential floating forward feature selection with the Bayes classifier applied to speech emotion recognition Signal Processing ·Dimitrios Ververidis, Constantine Kotropoulos	2008	108
6	Non-Negative Multilinear Principal Component Analysis of Auditory Temporal Modulations for Music Genre Classification IEEE Transactions on Audio Speech and Language Processing ·Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce	2009	83
7	Comparison of face verification results on the XM2VTFS database Cvut DSpace (Czech Technical University) ·Jiřı́ Matas, M. Hamouz, K. Jonsson, Josef Kittler, Yunpeng Li, Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas, Teewoon Tan, Hong Yan, Fabrizio Smeraldi, Josef Bigün, N. Capdevielle, Wulfram Gerstner, Souheil Ben-Yacoub, Y. Abeljaoued, Eddy Mayoraz	2002	76
8	ICA and Gabor representation for facial expression recognition Ioan Buciu, Constantine Kotropoulos, Ioannis Pitas	2004	72
9	Automatic Speech Classification To Five Emotional States Based On Gender Information INFM-OAR (INFN Catania) ·Dimitrios Ververidis, Constantine Kotropoulos	2004	71
10	Nonlinear ultrasonic image processing based on signal-adaptive filters and self-organizing neural networks IEEE Transactions on Image Processing ·Constantine Kotropoulos, X. Magnisalis, Ioannis Pitas, M.G. Strintzis	1994	67
11	Frontal face authentication using morphological elastic graph matching IEEE Transactions on Image Processing ·Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas	2000	65
12	Speaker segmentation and clustering Signal Processing ·Margarita Kotti, Vassiliki Moschou, Constantine Kotropoulos	2007	63
13	Color image histogram equalization by absolute discounting back-off Computer Vision and Image Understanding ·Nikoletta Bassiou, Constantine Kotropoulos	2007	59
14	Gaussian Mixture Modeling by Exploiting the Mahalanobis Distance IEEE Transactions on Signal Processing ·Dimitrios Ververidis, Constantine Kotropoulos	2008	57
15	Combining text and link analysis for focused crawling—An application for vertical search engines Information Systems ·George Almpanidis, Constantine Kotropoulos, Ioannis Pitas	2006	54
16	Emotional Speech Classification Using Gaussian Mixture Models and the Sequential Floating Forward Selection Algorithm Dimitrios Ververidis, Constantine Kotropoulos	2005	50
17	Fast Sequential Floating Forward Selection Applied To Emotional Speech Features Estimated On Des And Susas Data Collections Zenodo (CERN European Organization for Nuclear Research) ·Constantine Kotropoulos, Dimitrios Ververidis	2006	48
18	Information Loss of the Mahalanobis Distance in High Dimensions: Application to Feature Selection IEEE Transactions on Pattern Analysis and Machine Intelligence ·Dimitrios Ververidis, Constantine Kotropoulos	2009	46
19	Frontal face authentication using discriminating grids with morphological feature vectors IEEE Transactions on Multimedia ·Constantine Kotropoulos, Anastasios Tefas, Ioannis Pitas	2000	46
20	Music Genre Classification via Joint Sparse Low-Rank Representation of Audio Features IEEE/ACM Transactions on Audio Speech and Language Processing ·Yannis Panagakis, Constantine Kotropoulos, Gonzalo R. Arce	2014	45

About Constantine Kotropoulos

Constantine Kotropoulos is a scholar working on Signal Processing, Computer Vision and Pattern Recognition, Computational Mathematics, Artificial Intelligence and Media Technology, having authored 205 papers that have together received 3.9k indexed citations. Recurring topics across this work include Speech and Audio Processing (77 papers), Music and Audio Processing (66 papers), Face and Expression Recognition (37 papers), Advanced Image and Video Retrieval Techniques (26 papers), Image and Signal Denoising Methods (25 papers), Face recognition and analysis (23 papers), Speech Recognition and Synthesis (21 papers) and Image Retrieval and Classification Techniques (20 papers). The work is most often cited by research in Signal Processing (1.8k citations), Computer Vision and Pattern Recognition (2.0k citations), Computational Mathematics (46 citations), Experimental and Cognitive Psychology (890 citations) and Artificial Intelligence (1.2k citations). Constantine Kotropoulos has collaborated with scholars based in Greece, United States and United Kingdom. Frequent co-authors include Dimitrios Ververidis, Ioannis Pitas, Yannis Panagakis, Anastasios Tefas, Gonzalo R. Arce, Margarita Kotti, Emmanouil Benetos, George Almpanidis, Ioan Buciu and Zuzana Černeková. Their work appears in journals such as Signal Processing, Pattern Recognition, IEEE Transactions on Audio Speech and Language Processing, IEEE Transactions on Signal Processing and IEEE Transactions on Image Processing.

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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