LINE HARDER CLEMMENSEN

Ph. D. Student

PUBLICATIONS SOFTWARE TALKS EMPLOYMENTS EDUCATION

Photo: Sisse Jarner I am currently (since 1st of April 2006) working on my PhD at the Technical University of Denmark (DTU), Department of Informatics and Mathematical Modelling (IMM). My project concerns multivariate statistical analyses of problems with many variables in relation to the number of observations. Amongst others I am looking into objective identification of fungi to the species level. The following article on my project was in the DTU newspaper, November 2007: DTU avisen, p. 5. A brooche of the fungi created by Claus Bjerring for my graduation, and my husband and I:

Publications:

Journal Papers:

• Clemmensen, L. H., Hansen, M. E., and Ersbøll, B. K., A comparison of dimension reduction methods with applications to multi-spectral images of sand used in concrete, Machine Vision and Applications, online first version, 2009.
• Clemmensen, L. H., Hansen, M. E., Ersbøll, B. K., and Frisvad, J. C., A method for comparison of growth media in objective identification of Penicillium based on multi-spectral imaging, Journal of Microbiological Methods, 69: 249-255, 2007.
• Gomez, D. D., Clemmensen, L. H., Ersbøll, B. K., and Carstensen, J. M., Precise acquisition and unsupervised segmentation of multi-spectral images, Computer Vision and Image Understanding, 106(2-3): 183-193, 2007.

Conference Papers:

• Dissing, B. S., Clemmensen, L. H., Løje, H., Ersbøll, B. E., and Adler-Nissen, J. , Temporal reflectance changes in vegetables, CRICV, Kyoto, Japan, 2009.
• Mørup, M. and Clemmensen, L. H., Multiplicative updates for the LASSO, MLSP 2007 . [pdf]
• Clemmensen, L. H., Gomez, D. D. and Ersbøll, B. K., Individual discriminative face recognition models based on subsets of features, SCIA 2007 LNCS 4522 proceedings , p. 61-71, Ed. 2, Springer-Verlag, 2007. [pdf]
• Clemmensen, L. H. and Ersbøll, B. K., Multispectral recordings and analysis of psoriasis lesions, MICCAI '06 - Workshop on Biophotonics Imaging for Diagnostics and Treatment, October 6, 2006 Proceedings, 9th MICCAI Conference, p. 15-18. IMM-Technical report-2006-17, Technical University of Denmark, DTU, 2006. [pdf]

Master's Thesis:

• Clemmensen, L. H., Estimation and Classification through Regression with Variable Selection amongst features Extracted from Multi-Spectral Images - Estimation of moisture content in sand & Identification of Penicillium fungi, Informatics and Mathematical Modelling, Technical University of Denmark, DTU, 2006. [pdf]

Software:

SparseLDA: Software for the algorithms of sparse discriminant analysis (SDA) and sparse mixture discriminant analysis (SMDA) are available in Matlab and R. Please refer to the article: Clemmensen, L., Hastie, T., and Ersbøll, B., Sparse discriminant analysis, 2008 [pdf] when using them. [Matlab package] [R package]. The sparseLDA package builds on the elastic net package which in R can be dowloaded from CRAN, and in Matlab, Karl Sjöstrand's implementation can be dowloaded here: [larsen matlab package].

Talks:

• L. H. Clemmensen: Classification in high-dimensional sparse spaces, CMIS seminar, CSIRO, Perth, May 2008.
• L. H. Clemmensen: Classification in high-dimensional sparse spaces, CMIS seminar, CSIRO, Sydney, February 2008.
• L. H. Clemmensen, D. D. Gomez and B. K. Ersbøll: Individual discriminative face recognition models based on subsets of features, SCIA 2007 - Scandinavian Conference on Image Analysis, Aalborg, June 2007.
• L. H. Clemmensen, B. K. Ersbøll: Multispectral recordings and analysis of psoriasis lesions, MICCAI '06 - Workshop on Biophotonics Imaging for Diagnostics and Treatment, Copenhagen, October 2006.
• L. H. Clemmensen, M. E. Hansen, B. K. Ersbøll: Classification of fungi using multi-spectral image analysis: A comparison of dimension reductive methods, Copenhagen, DSAGM, August 2006.
• L. H. Clemmensen, M. E. Hansen, B. K. Ersbøll: Regularization of problems with many variables relative to the number of observations: Estimation of moisture content in sand by means of multi-spectral imaging, 13th ILAS conference, Amsterdam, July 2006.
• L. H. Clemmensen, M. E. Hansen, B. K. Ersbøll: Classification of Penicillium fungi through multi-spectral imaging and least angle regression - elastic net model selection, Rebild, 21st Nordic conference on Mathematical Statistics, Nordstat, June 2006.
• L. H. Clemmensen, M. E. Hansen, B. K. Ersbøll: Mutli-spectral image analysis in microbiology, Lyngby, Visiondays 2006.

Employments:

• 2006-2008   PhD student at IMM, DTU.
• 2005            Student employee at IMM, DTU in a research project simulating large seaside parks of windmills.
• 2001-2005   Assistent teacher at IMM, DTU in: Functional Programming, Numerical Algorithms, and Multivariate
                      Statistics.
• 2001-2003   Tutor of new students at DTU.
• 1996-2000   Basketball coach in SISU basketball club.

Education:

• 2008             Visiting researcher at CMIS, CSIRO, Australia as part of my Ph.D.
• 2006             MSc. at DTU in Applied Mathematics.
• 2004             Studied a semester at Universitat Politecnica de Catalunya (UPC) in Barcelona, Spain.
• 2000             Mathematical student at Falkonergården upper secondary school, Frederiksberg.
                       Obtained the privilege of joining Team Denmark, an organisation with the aim
                       of developping Danish elite sports.

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