Education

Ph.D. : Bogazici University, Computer Engineering, 2009

M.S. : Bogazici University, Computer Engineering, 2002

B.S. : Bogazici University, Computer Engineering, 2000

Current Research Interests

- Audio Source Modelling and Separation

- Optimisation in Markov Random Fields

- Non-negative Matrix Factorisation

Scientific Interests

- Bayesian Statistics

- Approximate Inference

- Graphical Models

- Machine Learning and Pattern Recognition

- Signal Processing

- Computer Vision

Publications

     Journal Papers

- O. Dikmen and A. T. Cemgil, "Gamma Markov Random Fields for Audio Source Modelling," IEEE Transactions on Audio, Speech, and Language Processing, (accepted). [www]

- O. T. Yıldız and O. Dikmen, "Parallel Univariate Decision Trees," Pattern Recognition Letters, vol. 28, no. 7, pp. 825-832, 2007.

     Conference Proceedings

- O. Dikmen and A. T. Cemgil, "Unsupervised Single-Channel Source Separation Using Bayesian NMF," in Proc. of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2009), to appear. [www]

- O. Dikmen, A. T. Cemgil and L. Akarun, "Gamma Markov Random Fields for Audio Source Modelling," in Proc. of IEEE 17th Signal Processing and Communications Applications Conference (SIU'09), Antalya, Turkey, 2009.

- A. T. Cemgil and O. Dikmen, "Inference and learning in Gamma chains for Bayesian audio processing," in Acoustics'08 Paris 123 (5), 2008.

- A. T. Cemgil and O. Dikmen, "Conjugate Gamma Markov random fields for modelling nonstationary sources," in Proc. of 7th International Conference on Independent Component Analysis and Signal Separation (ICA 2007), pp. 697-705, 2007.

- A. T. Cemgil, P. Peeling, O. Dikmen and S. J. Godsill, "Prior structures for time-frequency energy distributions," in Proc. of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2007), October 2007.

- O. Dikmen, H. L. Akın and E. Alpaydın, "Estimating Distributions In Genetic Algorithms," in Proc. of ISCIS'03, 2003.

     Technical Reports

- O. Dikmen and A. T. Cemgil, "Inference and parameter estimation in Gamma chains," University of Cambridge, Technical Report, CUED/F-INFENG/TR.596, February 2008. [pdf | www]

- O. T. Yıldız and O. Dikmen, "Parallel Univariate Decision Trees," Technical Report, FBE/CMPE-02/2004-13, Institute of Graduate Studies in Science and Engineering, Bogazici University, 2004.

     Theses

- O. Dikmen, "Bayesian Source Modelling for Single-Channel Audio Separation," Ph.D. Thesis, Bogazici University, 2009.

- O. Dikmen, "Estimating Distributions in Genetic Algorithms," M.S. Thesis, Bogazici University, 2002.

Assisted Courses

Cmpe486 Web Programming

Cmpe473 Internet Programming

Cmpe450 Software Engineering

Cmpe321 Introduction To Database Systems

Cmpe320 Principles of Programming Languages

Cmpe250 Data Structures And Algorithms

Cmpe210 Fundamentals Of Object Oriented Programming

Cmpe160 Introduction To Object Oriented Programming

Cmpe150 Introduction To Computing

Contact

Bogazici University
Computer Engineering Department ETA 27
34342 Bebek/Istanbul TURKEY
Tel : +90 (212) 3597183
e-mail : onuro at boun.edu.tr

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