**数学与系统科学研究院**

**计算数学所学术报告**

**报告人**：
Prof Jinyun Yuan

Federal University of Parana, Brazil

**报告题目**
Nonegative Matrix Factorization and its Applications

**Abstract:**
In this short survey talk, we give formulation of nonnegative matrix
factorization as optimal solution of minimization problem with nonnegative
constraints. The short history of the problem is reviewed. Some
applications of the factorization are given. Several approaches with
numerical algorithms are presented. Also some first order conditions are
given. Finally some open problems are mentioned.

**报告时间**：2004年12月21日 上午10：00-11：00

**报告地点**：科技综合楼三层报告厅