Andre Holzapfel

Multimedia Informatics Lab

Ph.D.
Email: hannover at csd dot uoc dot gr

Andre Holzapfel is currently a researcher at INESC Porto, and was with OFAI in Vienna from September 2010 until February 2011.
On 2 March 2010, he successfully defended his Ph.D. thesis which has been conducted in the Multimedia Informatics Lab at University of Crete. Between October 2009 and June 2010 he was a lecturer at the Department of Music Technology & Acoustics at the Technological Educational Institute of Crete.
His research interest is Music Information Retrieval. The subject of his thesis is the development of methods for analysis and information retrieval of traditional forms of music. The goal is to detect automatically morphological similarities between different pieces. The thesis was supervised by Yannis Stylianou. His work was funded by the Institute of Computer Science.
He graduated in 2004 at the Department of Media at University of Applied Sciences in Duesseldorf Germany. He received his master degree at the Department of Computer Science at University of Crete in 2006.
Before attending the postgraduate programme in Crete, he was working as a software developer at Creamware Datentechnik. There he was in charge of the development of electronic tube and electric circuit emulations, which are now used in the Dynatube guitar and bass amplifier plugins.
Click here for a CV.

Publications:

2007

A. Holzapfel; Y. Stylianou, "A STATISTICAL APPROACH TO MUSICAL GENRE CLASSIFICATION USING NON-NEGATIVE MATRIX FACTORIZATION", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Paper , bibtex

T. Dutoit; A. Holzapfel; M. Jottrand; A. Moinet; J. Perez; Y. Stylianou, "TOWARDS A VOICE CONVERSION SYSTEM BASED ON FRAME SELECTION", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Paper , bibtex

A. Holzapfel; Y. Stylianou, "SINGER IDENTIFICATION IN REMBETIKO MUSIC",Sound and Music Computing Conference (SMC), Paper , Dataset , bibtex

2008

A. Holzapfel; Y. Stylianou, "RHYTHMIC SIMILARITY OF MUSIC BASED ON DYNAMIC PERIODICITY WARPING", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Paper , Dataset , bibtex

A. Holzapfel; Y. Stylianou, "MUSICAL GENRE CLASSIFICATION USING NON-NEGATIVE MATRIX FACTORIZATION BASED FEATURES", Special Issue of IEEE Trans. on Audio, Speech and Language Procesing on Music Information retrieval, Paper , bibtex

A. Holzapfel, "DATA CLASSIFICATION IN THE HTK ENVIRONMENT USING RELEVANCE VECTOR MACHINES" (german language), VDM Verlag, ISBN-13: 978-3836472067, Amazon

A. Holzapfel; Y. Stylianou, "BEAT TRACKING USING GROUP DELAY BASED ONSET DETECTION", ISMIR 2008, Paper, Dataset

M. Markaki; A. Holzapfel; Y. Stylianou, "SINGING VOICE DETECTION USING MODULATION FREQUENCY FEATURES", SAPA 2008

N. d'Alessandro; O. Babacan; B. Bozkurt; T. Dubuisson; A. Holzapfel; L. Kessous; A. Moinet; M. Vlieghe; T. Dutoit, "RAMCESS 2.x FRAMEWORK - EXPRESSIVE VOICE ANALYSIS FOR REALTIME AND ACCURATE SYNTHESIS OF SINGING", Journal on Multimodal User Interfaces

2009

A. Holzapfel; Y. Stylianou, "A SCALE TRANSFORM BASED METHOD FOR RHYTHMIC SIMILARITY OF MUSIC", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Paper , bibtex

A. Holzapfel; Y. Stylianou, "RHYTHMIC SIMILARITY IN TRADITIONAL TURKISH MUSIC", ISMIR 2009, Paper, bibtex

E. Benetos; A. Holzapfel; Y. Stylianou, "PITCHED INSTRUMENT ONSET DETECTION BASED ON AUDITORY SPECTRA", ISMIR 2009

2010

A. Holzapfel; Y. Stylianou, "PARATAXIS: MORPHOLOGICAL SIMILARITY IN TRADITIONAL MUSIC", ISMIR 2010, Abstract, bibtex

A. Holzapfel; Y. Stylianou; A.C. Gedik; B. Bozkurt, "THREE DIMENSIONS OF PITCHED INSTRUMENT ONSET DETECTION", IEEE Trans. on Audio, Speech and Language Processing, Paper, bibtex

2011

A. Holzapfel; Y. Stylianou, "Scale transform in rhythmic similarity of music", IEEE Trans. on Audio, Speech and Language Processing, Paper, bibtex

A. Holzapfel; A. Flexer; G. Widmer, "IMPROVING TEMPO-SENSITIVE AND TEMPO-ROBUST DESCRIPTORS FOR RHYTHMIC SIMILARITY", Sound and Music Computing Conference (SMC), Paper , bibtex

A. Holzapfel; G.A. Velasco; N. Holighaus; M. Dörfler; A. Flexer, "ADVANTAGES OF NONSTATIONARY GABOR TRANSFORMS IN BEAT TRACKING", MIRUM workshop at the 2011 ACM-Multimedia, bibtex

2012

A. Holzapfel; M.E.P. Davies; J.R. Zapata; J.L. Oliveira; F. Gouyon, "ON THE AUTOMATIC IDENTIFICATION OF DIFFICULT EXAMPLES FOR BEAT TRACKING: TOWARDS BUILDING NEW EVALUATION DATASETS", IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Download:

Remark: The code provided here represents working code and I do not claim that it is free of bugs. I decided to put it on this page, in order to make results reproducible for others. Feel free to use it and do not hesitate to contact me, if you have any problem, or, hopefully not, you found a bug!

Download matlab demo code for the ICASSP paper "A STATISTICAL APPROACH TO MUSICAL GENRE CLASSIFICATION USING NON-NEGATIVE MATRIX FACTORIZATION".