Dr. Diana Sima | OPTEC - K.U.Leuven CoE Optimization in Engineering

Home

People

Detail

Dr. Diana Sima (ESAT)

This e-mail address is being protected from spambots. You need JavaScript enabled to view it

My K.U.Leuven Curriculum Vitae

Member of:

Data-driven modelling (WG2)
Parameter and State Estimation (WG3)

IT (Articles in internationally reviewed academic journals)

Osorio Garcia, M., Sima, D., Nielsen, F., Himmelreich, U., Van Huffel, S. (2011). Quantification of magnetic resonance spectroscopy signals with lineshape estimation. Journal of Chemometrics, 25 (4), 183-192.

Croitor Sava, A., Martinez-Bisbal, M., Van Huffel, S., Cerda, J., Sima, D., Celda, B. (2011). Ex vivo high resolution magic angle spinning metabolic profiles describe intratumoral histopathological tissue properties in adult human gliomas. Magnetic Resonance in Medicine, 65, 320-328.

Popa, E., Karras, D., Mertzios, B., Sima, D., de Beer, R., van Ormondt, D., Gravernon-Demilly, D. (2011). Semi-parametric estimation without searching in function space. Application to in vivo metabolite quantitation. IET Science, Measurement and Technology, 22 (11), 114014-114014.

Osorio Garcia, M., Sima, D., Nielsen, F., Dresselaers, T., Van Leuven, F., Himmelreich, U., Van Huffel, S. (2011). Quantificatioin of in vivo 1H magnetic resonance spectroscopy (MRS) signals with baseline and lineshape estimation. Measurement Science & Technology, 22 (11), 114011-114011.

Mosconi, E., Fontanella, M., Sima, D., Van Huffel, S., Fiorini, S., Sbarbati, A., Marzola, P. (2011). Investigation of adipose tissues in Zucker rats using in vivo and ex vivo Magnetic Resonance Spectroscopy. Journal of Lipid Research, 52 (2), 330-336.

Lemke, C., Schuck Jr., A., Antoine, J., Sima, D. (2011). Metabolite-sensitive analysis of magnetic resonance spectroscopic signals using the continuous wavelet transform. IET Science, Measurement and Technology, 22 (11), 114013-114013.

Croitor Sava, A., Martinez-Bisbal, M., Laudadio, T., Piquer, J., Celda, B., Heerschap, A., Sima, D., Van Huffel, S. (2011). Fusing in vivo and ex vivo NMR sources of information for brain tumor classification. Measurement Science & Technology, 22 (11), 114012-114012.

Hnetynkova, I., Plesinger, M., Sima, D., Strakos, Z., Van Huffel, S. (2011). The total least squares problem in B. A new classification with the relationship to the classical works. SIAM Journal on Matrix Analysis and Applications, 32 (3), 748-770.

Markovsky, I., Sima, D., Van Huffel, S. (2010). Total least squares methods. WIREs Computational Statistics, 2 (2), 212-217.

Croitor Sava, A., Sima, D., Poullet, J., Heerschap, A., Van Huffel, S. (2010). Exploiting spatial information to estimate metabolite levels in 2D MRSI of heterogeneous brain lesions. NMR in Biomedicine.

Sima, D., Osorio Garcia, M., Poullet, J., Suvichakorn, A., Antoine, J., Van Huffel, S., van Ormondt, D. (2009). Lineshape estimation for Magnetic Resonance Spectroscopy (MRS) signals: self-deconvolution revisited. Measurement Science & Technology, 20 (10), 104031-104043.

Poullet, J., Sima, D., Van Huffel, S. (2008). MRS signal quantitation: a review of time- and frequency-domain methods. Journal of Magnetic Resonance, 195 (2), 134-144.

Sima, D., Van Huffel, S. (2007). Level choice in truncated total least squares. Computational Statistics & Data Analysis, 52 (2), 1103-1118.

Poullet, J., Sima, D., Simonetti, A., De Neuter, B., Vanhamme, L., Lemmerling, P., Van Huffel, S. (2007). An automated quantitation of short echo time MRS spectra in an open source software environment: AQSES. NMR in Biomedicine, 20 (5), 493-504.

Poullet, J., Sima, D., Van Huffel, S., Van Hecke, P. (2007). Frequency-selective quantitation of short-echo time H-1 magnetic resonance spectra. Journal of Magnetic Resonance, 186 (2), 293-304.

Sima, D., Van Huffel, S. (2007). Separable nonlinear least squares fitting with linear bound constraints and its application in magnetic resonance spectroscopy data quantification. Journal of Computational and Applied Mathematics, 203 (1), 264-278.

Sima, D., Van Huffel, S. (2006). A class of template splines. Computational Statistics & Data Analysis, 50 (12), 3486-3499.

Sima, D., Van Huffel, S. (2006). Regularized semiparametric model identification with application to nuclear magnetic resonance signal quantification with unknown macromolecular base-line. Journal of the Royal Statistical Society B, Statistical Methodology, 68 (3), 383-409.

Sima, D., Van Huffel, S., Golub, G. (2004). Regularized total least squares based on quadratic eigenvalue problem solvers. Bit numerical mathematics, 44 (4), 793-812.

Sima, V., Sima, D., Van Huffel, S. (2004). High-performance numerical algorithms and software for subspace-based linear multivariable system identification. Journal of computational and applied mathematics, 170 (2), 371-397.

IHb (Article in academic book, internationally recognised scientific publisher)

Osorio Garcia, M., Croitor Sava, A., Sima, D., Nielsen, F., Himmelreich, U., Van Huffel, S. (2011). Quantification improvements of 1H MRS signals. In: Kim D. (Eds.), Magnetic Resonace Spectroscopy (pp. 1-26). Rijeka, Croatia: Intech open access publisher.

Sima, D., Poullet, J., Van Huffel, S. (2010). Computational aspects of exponential data fitting in Magnetic Resonace Spectroscopy. In: Pereyra V., Scherer G. (Eds.), Exponential data fitting and its applications, Chapt. 2 (pp. 27-51). Oak Park IL: Bentham eBooks, Bentham Science Publishers Ltd..

Sima, D., Croitor Sava, A., Van Huffel, S. (2010). Adaptive alternating minimization for fitting magnetic resonance spectroscopic imaging signals. In: Diehl M., Glineur F., Jarlebring E., Michiels W. (Eds.), Recent Advances in Optimization and its Applications in Engineering (pp. 511-520).

Poullet, J., Sima, D., Van Huffel, S. (2009). Metabolite quantification in MRS and pattern recognition. In: Harris R., Wasylishen R. (Eds.), Encyclopedia of Magnetic Resonance (pp. 1-9). Chichester, UK: John Wiiley.

IC (Papers at international scientific conferences and symposia, published in full in proceedings)

Li, Y., Sima, D., Van Cauter, S., Himmelreich, U., Pi, Y., Van Huffel, S. (2012). Simulation study of tissue type differentiation using non-negative matrix factorization. Proc. of the Int. Conf. on Bio-inspired systems and signal processing (Biosignals 2012). Int. Conf. on Bio-inspired systems and signal processing (Biosignals 2012). Vilamoura, Portugal, Feb. 2012 (pp. 212-217).

Li, Y., Sima, D., Van Cauter, S., Himmelreich, U., Pi, Y., Van Huffel, S. (2012). Tissue type differentiation for brain glioma using non-negative matrix factorization. Proc. of the Int. Conf. on Bio-inspired systems and signal processing (Biosignals 2012). Int. Conf. on Bio-inspired systems and signal processing (Biosignals 2012). Vilamoura, Portugal, Feb. 2012 (pp. 25-31).

Osorio Garcia, M., Sima, D., Nielsen, F., Himmelreich, U., Van Huffel, S. (2011). Damping factor constraints and metabolite profile selection influence magnetic resonance spectroscopy data quantification. Proc. of the International Conference on Bio-Inspired systems and signal processing 2011. BIOSTEC 2011. Rome, Italy, Jan. 2011 (pp. 176-181).

Osorio Garcia, M., Sima, D., Nielsen, F., Himmelreich, U., Van Huffel, S. (2010). Quantification of in vivo magnetic resonance spectroscopy signals with baseline and lineshape corrections. Proc. of the 2010 IEEE International Conference on Imaging Systems and Techniques (IST). 2010 IEEE International Conference on Imaging Systems and Techniques (IST). Thessaloniki, Greece, Jul. 2010 (pp. 349-352).

Croitor Sava, A., Sima, D., Martinez-Bisbal, M., Celda, B., Van Huffel, S. (2010). Non-negative blind source separation techniques for tumor tissue typing using HR-MAS signals. Proc. of the 32nd annual International Conference on the IEEE EMBS (IEEE EMB). 32nd annual International Conference on the IEEE EMBS (IEEE EMB). Buenos Aires, Argentina, Aug. 2010 (pp. 4658-4661).

Croitor Sava, A., Martinez-Bisbal, M., Celda, B., Heerschap, A., Sima, D., Van Huffel, S. (2010). Incorporating in vivo and ex vivo NMR sources of information for modeling robust brain tumor classifiers. Proc. of the 2010 IEEE International Conference on Imaging Systems and Techniques (IEEE IST). 2010 IEEE International Conference on Imaging Systems and Techniques (IEEE IST). Thesaloniki, Greece, Jun. 2010 (pp. 1-4).

Croitor Sava, A., Sima, D., Poullet, J., Van Huffel, S. (2009). Exploiting Spatial Information for Estimating Metabolite Concentration in MRSI''. Proc. of the International Society of Magnetic Resonance in Medicine 17 (ISMRM). International Society of Magnetic Resonance in Medicine 17 (ISMRM). Honolulu, Hawai, Apr. 2009 (pp. 4280p.).

Osorio Garcia, M., Sima, D., Poullet, J., van Ormondt, D., Van Huffel, S. (2008). Iterative improvement of lineshape estimation. Proc. of the 4th European Congress for Medical and Biomedical Engineering 2008 (MBEC 2008). 4th European Congress for Medical and Biomedical Engineering 2008 (MBEC 2008). Antwerp, Belgium, Nov. 2008 (pp. 138-141).

Sima, D., Rodriguez Diaz, A., Van Huffel, S. (2008). Modeling the macromolecular background in Nuclear Magnetic Resonance spectroscopic signals. Proc. of the 4th European Medical and Biomedical Engineering congress (eMBEC). 4th European Medical and Biomedical Engineering congress (eMBEC). Antwerp, Belgium, Nov. 2008 (pp. 372-376).

Osorio Garcia, M., Sima, D., Poullet, J., van Ormondt, D., Van Huffel, S. (2008). Improvement of lineshape estimation for MRS signals. Proc. of the 2008 IEEE International workshop on Imaging, systems and techniques (IST 2008). 2008 IEEE International workshop on Imaging, systems and techniques (IST 2008). Antwerp, Belgium, Nov. 2008 (pp. 326-329).

Devos, A., Bergans, N., Dresselaers, T., De Brabanter, J., Sima, D., Vanhamme, L., Vanstapel, F., Van Hecke, P., Van Huffel, S. (2006). Model order selection for quantification of a multi-exponential magnetic resonance spectrum. Proc. of the IEEE 2006 International Conference of the Engineering in Medicine and Biology Society (IEEE EMBC 2006). IEEE 2006 International Conference of the Engineering in Medicine and Biology Society (IEEE EMBC 2006), Aug.-Sep. 2006 (pp. 1299-1302).

Poullet, J., Sima, D., Van Huffel, S. (2006). Frequency-selective quantification of short-echo time Magnetic Resonance spectra. Proc. of the IEEE 2006 International Conference of the Engineering in Medicine and Biology Society (EMBC 2006). IEEE 2006 International Conference of the Engineering in Medicine and Biology Society (EMBC 2006), Aug.-Sep. 2006 (pp. 6351-6355).

Sima, D., Van Huffel, S. (2005). Using Core Formulations for Ill-posed Linear Systems. Proc. of the 76th GAMM Annual Meeting. 76th GAMM Annual Meeting. Luxembourg, Luxembourg, Mar.-Apr. 2005 (pp. 795-796).

Sima, D., Van Huffel, S. (2004). Appropriate cross-validation for regularized errors-in-variables linear models. In Antoch, J. (Ed.), COMPSTAT Proceedings in Computational Statistics, 16th Symposium. 16th COMPSTAT. Prague, Czech Republic, 2004 (pp. 1815-1822).

Sima, D., Van Huffel, S. (2004). Minor component analysis by incremental inverse iteration. Proc. of the Sixteenth International Symposium on Mathematical Theory of Networks and Systems (MTNS 2004). Sixteenth International Symposium on Mathematical Theory of Networks and Systems (MTNS 2004). Leuven, Belgium, Jul. 2004.

Sima, V., Sima, D., Van Huffel, S. (2002). SLICOT system identification software and applications. Proc. of the 2002 Conference on Control Applications and International Symposium on Computer Aided Control Systems Design. 2002 Conference on Control Applications and International Symposium on Computer Aided Control Systems Design. Glasgow, U.K., Sep. 2002 (pp. 45-50).

AC (Papers at other scientific conferences and symposia, published in full in proceedings)

Vanderperren, K., Vandeput, S., Poullet, J., Sima, D., Van Huffel, S. (2006). Automatic quantification of magnetic resonance spectroscopic signals : Evaluation and comparison of AQSES and QUEST. Proc. of the Belgian day on biomedical engineering - IEEE/EMBS Benelux Symposium. Belgian day on biomedical engineering - IEEE/EMBS Benelux Symposium. Brussels, Belgium, Dec. 2006 (pp. 251-254). Brussels, Belgium.

Vanderperren, K., Vandeput, S., Poullet, J., Sima, D., Van Huffel, S. (2006). Automatic quantification of magnetic resonance spectroscopic signals : Evaluation and comparison of Aqses and Quest. Proc. of the Belgian day on biomedical engineering - IEEE/EMBS Benelux Symposium. Belgian day on biomedical engineering - IEEE/EMBS Benelux Symposium. Brussels, Belgium, Dec. 2006 (pp. 251-254).

IMa (Meeting abstracts, presented at international scientific conferences and symposia, published or not published in proceedings or journals)

Li, Y., Sima, D., Van Cauter, S., Himmelreich, U., Pi, Y., Van Huffel, S. (2011). Tissue type differentiation for brain tumor diagnosis using non-negative matrix factorization on MRSI data. Magn Reson Mater Phy: vol. 24 (Suppl 1). ESMRMB Congress. Leipzig, 6-8 October 2011, 173.

Van Cauter, S., Sima, D., ter Beek, L., Luts, J., Li, R., Osorio Garcia, M., Sunaert, S., Van Huffel, S., Himmelreich, U. (2011). Reproducibility and variance of short echo time 1H MR chemical shift imaging of the human brain at 3T with automated planning software. Magn reson Mater Phy: vol. 24 (Suppl 1). ESMRMB Congress. Leipzig, 6-8 October 2011, 404.

Van Cauter, S., Sima, D., ter Beek, L., Luts, J., Li, Y., Osorio Garcia, M., Sunaert, S., Van Huffel, S., Himmelreich, U. (2011). Reproducibility and variance of serial short echo time 1H magnetic resonance spectroscopic imaging of the human brain at 3T with automated planning software. Proc. Intl. Soc. Mag. Reson. Med.: vol. 19. Annual Meeting of the International Society of Magnetic Resonance in Medicine. Montreal, 7-13 May 2011, 1420.

Croitor Sava, A., Van Cauter, S., Sima, D., Osorio Garcia, M., Himmelreich, U., Van Huffel, S. (2011). Non-negative blind source separation techniques for describing intratumoral histopathological tissue properties within MRSI measurements. Proc. Intl. Soc. Mag. Reson. Med.: vol. 19. Annual Meeting of the International Society of Magnetic Resonance in Medicine. Montreal, 7-13 May, 3431.

Osorio Garcia, M., Sima, D., Nielsen, F., Dresselaers, T., Himmelreich, U., Van Leuven, F., Van Huffel, S. (2011). In vivo 1H MRS quantification of Alzheimer disease in frontal hippocampus of mice with and without inversion recovery to assess the macromolecular contribution. Proc. Intl. Soc. Mag. Reson. Med.: vol. 19. Annual Meeting of the International Society of Magnetic Resonance in Medicine. Montreal, 7-13 July 2011, 3439.

TH (Thesis)

Croitor Sava, A., Van Huffel, S. (sup.), Sima, D. (cosup.) (2011). Signal Processing and Classification for Magnetic Resonance Spectroscopy with Clinical Applications (Signaalverwerking en classificatie van magnetische resonantie spectroscopie met klinische toepassingen).

Osorio Garcia, M., Van Huffel, S. (sup.), Sima, D. (sup.), Himmelreich, U. (sup.) (2011). Advanced Signal Processing for Magnetic Resonance Spectroscopy (Geavanceerde signaalverwerking voor magnetische resonantie spectroscopie), 145 pp.

Sima, D., Van Huffel, S. (sup.) (2006). Regularization Techniques in Model Fitting and Parameter Estimation (Regularisatietechnieken in modellering en parameterschatting), 179 pp.

This list is generated from Lirias and contains data from Lirias as it is entered and validated by the researcher.

Newsflash

Two OPTEC professors have been awarded three "Gouden Krijtjes", the yearly teaching awards given by the organization of engineering students (vtk). Prof. Lombaert was awarded the prize for the best course in civil engineering, and Prof. Diehl the prizes for the best professor and the best course in mathematical engineering (where he teaches numerical optimization). They received these awards at the yearly "proffentap" where experienced students taught them how to draft beer professionally.