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Dr. Tjeerd Andringa

function: Director of education at artificial intelligence

email:

phone: +31 (0)50 363 6958

room: 324

homepage: http://www.ai.rug.nl/~tjeerd/

research interests:
Main interest: "How to interact with a complex world?"
My research interests (here in more detail) may appear quite broad but they are all aspects of my main fascination:
"How are we able to function in a world that is for a major part unknown, infinitely complex, extremely variable and by and large uncontrollable".
To make this question a bit more manageable I reduce "the world" to one in which only sounds play a role. I assume that this reduction leads to a field or research that:
1. is sufficiently rich to yield useful knowledge about the nature of cognition as a whole,
2. is sufficiently simple and manageable to formulate and test of elaborate models,
3. is sufficiently neglected as a research topic so that contributions are more likely to be significant, and
4. has sufficient potential for numerous spin-off applications.

The research topics on which I focus include:
• Auditory cognition
• Continuity Preserving Signal Processing (CPSP)
• The design of detectors for specific sounds
• Estimation and structuring Sound Source Properties
• Modeling transmission-effects
• Speech Signal Processing
• Animal vocalizations
• Models for speech
• Intelligent evaluation of auditory scenes

publications:
Niessen, M.E., Van Maanen, L., Andringa, T.C. (2008). Disambiguating sound through context. International Journal of Semantic Computing 2(3), 327-341.
Krijnders, J.D., Andringa, T.C. (2008). Demonstration of online auditory scene analysis. Accepted for BNAIC 2008.
Niessen, M.E., Van Maanen, L., Andringa, T.C. (2008). Disambiguating sounds through context. Proceedings of IEEE ICSC, 88-95.
Andringa, T.C., Grootel, M. van (2007). Predicting listeners' reports to environmental sounds. Proceedings of ICA 2007, ENV-09-005-IP.
Zajdel, W., Krijnders, J.D., Andringa T.C., Gavrila, D.M. (2007) Audio-video sensor fusion for aggression detection. Proceedings of AVSS 2007.
Hengel, P.W.J. van, Andringa, T.C. (2007). Verbal aggression detection in complex social environments. Proceedings of AVSS 2007.
Niessen, M.E., Krijnders, J.D., Boers, J., Andringa, T.C. (2007). Assessing the reverberation level in speech. Proceedings of ICA 2007, CAS-03-020.
Krijnders, J.D., Niessen, M.E., Andringa, T.C. (2007). Robust harmonic complex estimation in noise. Proceedings of ICA 2007, CAS-03-019.
Andringa, T.C., Niessen, M.E. (2006). Real-world sound recognition: A recipe. Proceedings of LSAS 2006, 106-118.
Ten Holt, G., Hendriks, P., Andringa, T.C. (2006). Why don't you see what I mean? Prospects and limitations of current automatic sign recognition research. Armstrong, D. (Ed.), Sign Language Studies 6.4, 416-437. Gallaudet University Press, Washington DC, ISSN: 0302-1475
Andringa, T., Hengel, P.W.J. van, Nillesen, M.M., Muchal, R. (2004). Aircraft sound-level measurements in residential areas using sound source separation. Proceedings of Internoise 2004, Prague, 460.
Andringa, T.C. (2002). Continuity preserving signal processing. Thesis Rijksuniversiteit Groningen.
Andringa, T.C. (1997). Using an auditory model and leaky autocorrelators to tune in to speech. Proceedings of Eurospeech 97, Rhodes, Greece, 2859-2862.

patents:
Hengel, P.W.J., Andringa, T.C., et al. (2007). Method and apparatus for detection of specific input signal contributions.
Andringa, T.C., Duifhuis, H., Hengel, P.W.J, Heemskerk, M.G., Nillesen, M.M. (1999). Patent application WO0133547: "Methods and Apparatuses for Signal Analysis".