Fast Parzen Density Estimation Using Clustering-Based Branch and Bound.

Byeungwoo Jeon David A. Landgrebe Fast Parzen Density Estimation Using Clustering-Based Branch and Bound. 950-954 1994 16 IEEE Trans. Pattern Anal. Mach. Intell. 9 http://doi.ieeecomputersociety.org/10.1109/34.310693 db/journals/pami/pami16.html#JeonL94