Publications

To be published

• Mehrkanoon S., Jiang L., Alzate C., Suykens J.A.K., “Symbolic computing of LS-SVM based models”, Internal Report 10-257, ESAT-SISTA, K.U.Leuven (Leuven, Belgium), 2010. Accepted for publication in ESANN 2011.

• Alzate C., Suykens J.A.K., “Sparse Kernel Spectral Clustering Models for Large-Scale Data Analysis”, Internal Report 10-159, ESAT-SISTA, K.U.Leuven (Leuven, Belgium), 2010. Accepted for publication in Neurocomputing.

Journal

• Suykens J.A.K., Alzate C., Pelckmans K., “Primal and dual model representations in kernel-based learning“, Statistics Surveys, DOI: 10.1214/09-SS052, vol. 4, Aug. 2010, pp. 148-183.

• Alzate C., Suykens J.A.K., “Multiway Spectral Clustering with Out-of-Sample Extensions through Weighted Kernel PCA”,  IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 32, no. 2, Feb. 2010, pp. 335-347.

• Alzate C., Suykens J.A.K., “Kernel Component Analysis using an Epsilon Insensitive Robust Loss Function”, IEEE Transactions on Neural Networks, vol. 19, no. 9, Sep. 2008, pp. 1583-1598.

• Alzate C., Suykens J.A.K., “A Regularized Kernel CCA Contrast Function for ICA”, Neural Networks, Special Issue on Advances in Neural Networks Research, vol. 21, no. 2-3, Mar.-Apr. 2008, pp. 170-181.

Conference

• Alzate C., Suykens J.A.K., “Highly Sparse Kernel Spectral Clustering with Predictive Out-of-Sample Extensions“, in Proc. of the 18th European Symposium on Artificial Neural Networks (ESANN 2010), Bruges, Belgium, Apr. 2010, pp. 235-240.

• Alzate C., Espinoza M., De Moor B., Suykens J.A.K., “Identifying Customer Profiles in Power Load Time Series Using Spectral Clustering”, in Proc. of the 19th International Conference on Neural Networks (ICANN 2009), Limassol, Cyprus, Sep. 2009, pp. 315-324.

• Alzate C., Suykens J.A.K., “A Regularized Formulation for Spectral Clustering with Pairwise Constraints”, in Proc. of the 2009 International Joint Conference on Neural Networks (IJCNN’09), Atlanta, U.S.A, Jun. 2009, pp. 141-148.  (Best student paper award).

• Alzate C., Suykens J.A.K., “Sparse Kernel Models for Spectral Clustering Using the Incomplete Cholesky Decomposition”, in Proc. of the 2008 International Joint Conference on Neural Networks (IJCNN 2008), Hong Kong, China, Jun. 2008, pp. 3555-3562.

• Alzate C., Suykens J.A.K., “ICA Through an LS-SVM Based Kernel CCA Measure for Independence”, in Proc. of the 2007 International Joint Conference on Neural Networks (IJCNN 2007), Orlando, FL. U.S.A., Aug. 2007.

• Alzate C., Suykens J.A.K., “Image Segmentation using a Weighted Kernel PCA Approach to Spectral Clustering”, in Proc. of the 2007 IEEE Symposium on Computational Intelligence in Image and Signal Processing (CIISP 2007), Honolulu, U.S.A., Apr. 2007, pp. 208-213.

• Alzate C., Suykens J.A.K., “A Weighted Kernel PCA Formulation with Out-of-Sample Extensions for Spectral Clustering Methods”, in Proc. of the 2006 International Joint Conference on Neural Networks (IJCNN’06), Vancouver, Canada, Jul. 2006, pp. 138-144.

• Alzate C., Suykens J.A.K., “Extending Kernel Principal Component Analysis to General Underlying Loss Functions”, in Proc. of the International Joint Conference on Neural Networks (IJCNN’05), Montreal, Canada, Jul. 2005, pp. 214-219.

Ph.D thesis

• Alzate C., Support Vector Methods for Unsupervised Learning, PhD thesis, Faculty of Engineering, K.U.Leuven (Leuven, Belgium), May 2009, 175 p.

Abstracts & Posters

• Alzate C., Suykens J.A.K., “Sparse Spectral Clustering with Out-of-Sample Extensions for Large-Scale Data”, European Workshop on Challenges in Modern Massive Data Sets (EMMDS 2009), Copenhagen, Denmark, 2009.

• Alzate C., Suykens J.A.K, “Multiway Spectral Clustering through Weighted Kernel PCA”, 22nd European Conference on Operational Research (EURO 2007), Prague, Czech Republic, 2007. (Invited talk).

• Espinoza M., Alzate C., Suykens J.A.K., De Moor B., “Clustering of Time Series: Looking for the Dynamics”, IAP VI/4, DYSCO Workshop, Brussels, Belgium, 2007.

• Alzate C., Suykens J.A.K., “A Contrast Function for ICA Using LS-SVM Based Formulations to Kernel CCA”, Benelearn 2007, Amsterdam, The Netherlands, 2007.

• Alzate C., Suykens J.A.K., “A Weighted Kernel PCA Approach to Graph-Based Image Segmentation”, Embeddings of Graphs and Groups into Hilbert and Banach Spaces, Lausanne, Switzerland, 2007.

• Alzate C., Suykens J.A.K., “An Out-of-Sample Extension to Spectral Clustering based on Weighted Kernel PCA and its Application to Image Segmentation”, International Workshop on Current Challenges in Kernel Methods (CCKM06), Brussels, Belgium, 2006.

• Alzate C., Suykens J.A.K., “A Unifying Framework for Spectral Clustering based on Weighted Kernel PCA”, Benelearn 2006, Ghent, Belgium, 2006.

• Alzate C., Suykens J.A.K., “An Out-of-Sample Extension for Spectral Clustering based on Weighted Kernel PCA”, CIL Research Day, Brussels, Belgium, 2006.

• Alzate C., Suykens J.A.K., “Generalized Kernel PCA”, 21st European Conference on Operational Research (EURO 2006)”, Reykjavik, Iceland, 2006. (Invited talk).

• Alzate C. Suykens J.A.K., “Extending Kernel PCA to General Underlying Loss Functions”, The Analysis of Patterns Doctoral School, Erice, Italy, 2005.

• Alzate C. Suykens J.A.K., “Robust Kernel Principal Component Analysis using Huber’s Loss Function”, Benelux Meeting on Systems and Control, Houffalize, Belgium, 2005.