• (UNH) CS 515 Introduction to Data Structures
• (UNH) CS770/870 Computer Graphics
• (UNH) CS970 Advanced Computer Graphics

Areas of interest:

• Non-realistic rendering (borrowing techniques used by artists and illustrators): decorative mosaics, pointilism and painterly effects.
• Hardware-assisted cluster analysis for data mining.

• Alejo Hausner, "A New Clustering Algorithm for Coordinate-Free Data", Pattern Recognition (2010).
• Alejo Hausner, "Simple and Versatile Decorative Halftoning", Journal of Graphics Tools, Vol. 13, No. 2 (2008).
• Alejo Hausner, "Hierarchical Graph Color Dither", Journal of Electronic Imaging, Vol. 17, No. 2 (May 2008).
• Fan Gu, Yuri Rzhanov and Alejo Hausner, "Multi-Resolution Quality Improvement for Patch-Based Texture Synthesis in Wavelet Domain", Eighth IASTED International Conference: Signal and Image Processing, 2006.
• Alejo Hausner, Animated Visualization of Time-Varying 2D Flows using Error Diffusion Advanced Visual Interfaces 2006.
• Alejo Hausner, Graph Order Dither, SPIE Conference 6058, Color Imaging XI.
• Alejo Hausner, Pointillist Halftoning, CGIM 2005.
• Alejo Hausner, Simulating Decorative Mosaics, Siggraph 2001.
• Alejo Hausner, Multipole Expansion of the Light Vector, IEEE Transactions on Visualization and Computer Graphics, Vol. 3, No. 1, January-March 1997.