Unsupervised Feature Selection for the K-means Clustering Problem
    C. Boutsidis, M.W. Mahoney and P. Drineas

     Conference on Neural Information Processing Systems (NIPS), December 2009. [pdf]

    An Improved Approximation Algorithm for the Column Subset Selection Problem
    C. Boutsidis, M.W. Mahoney and P. Drineas
    ACM-SIAM Symposium on Discrete Algorithms (SODA), January 2009 [pdf]
    Journal Version submitted for review, Technical report arXiv:0812.4293v1, 2008 [pdf]

     Unsupervised Feature Selection for Principal Components Analysis
    C. Boutsidis, M.W. Mahoney and P. Drineas
   
ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD), August 2008 [pdf]

     Random Projections for the Nonnegative Least Squares Problem
    C. Boutsidis and P. Drineas
    Linear Algebra and its Applications 431 (2009), pp. 760-771.
[pdf]

    Clustered Subset Selection and its Applications on IT Service Metrics
    C. Boutsidis, J. Sun and N. Anerousis
    ACM Conference on Information and Knowledge Management (CIKM), October 2008 [pdf]

    SVD-based initialization: A head start on nonnegative matrix factorization
    C. Boutsidis and E. Gallopoulos 
    Pattern Recognition, Volume 41, Issue 4, Pages 1350-1362, April 2008 [pdf]