3 papers
math.NA2019
Modeling Hessian-vector products in nonlinear optimization: New Hessian-free methods
Lili Song, Luis Nunes Vicente
In this paper, we suggest two ways of calculating interpolation models for unconstrained smooth nonlinear optimization when Hessian-vector products are available. The main idea is…
cs.CV2014
On the mathematic modeling of non-parametric curves based on cubic Bézier curves
Ha Jong Won, Choe Chun Hwa, Li Kum Song
Bézier splines are widely available in various systems with the curves and surface designs. In general, the Bézier spline can be specified with the Bézier curve segments and a Bézi…
cs.CL2014
Definition of Visual Speech Element and Research on a Method of Extracting Feature Vector for Korean Lip-Reading
Ha Jong Won, Li Gwang Chol, Kim Hyok Chol +1
In this paper, we defined the viseme (visual speech element) and described about the method of extracting visual feature vector. We defined the 10 visemes based on vowel by analyzi…