MATLAB Toolbox: Nonnegative Matrix Factorization with Volume Constraints 
Morten Arngren, Mikkel N. Schmidt, Jan Larsen

Abstract  The MATLAB toolbox consists maximum aposteriori NMF algorithm with a volume and sumtoone constraint. The NMFVol includes minimum volume constraint (Miao and Qi), parallelepiped volume, and Euclidian distance based volume constraint. 
Keywords  NMF, Volume constraint, Project gradient optimization 
Type  Software 
Year  2010 Month March 
Publisher  Department of Informatics and Mathematical Modelling 
Address  Richard Petersens Plads, Building 321, 2800 Kongens Lyngby, Denmark 
Note  The toolbox is used in the paper "Unmixing of Hyperspectral Images using Bayesian Nonnegative Matrix Factorization with Volume Prior" http://www.imm.dtu.dk/pubdb/p.php?5835 
Electronic version(s)  [zip] 
BibTeX data  [bibtex] 
IMM Group(s)  Intelligent Signal Processing 