human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge groups authors who co-authored the same paper.

Details of the hypergraph:
Center hyperedge (induced by source paper "A fast iterative algorithm for fisher discriminant using heterogeneous kernels"):
  Abstract: We propose a fast iterative classification algorithm for Kernel Fisher Discriminant (KFD) using heterogeneous kernel models. In contrast with the standard KFD that requires the user to predefine a kernel function, we incorporate the task of choosing an appropriate kernel into the optimization problem to be solved. The choice of kernel is defined as a linear combination of kernels belonging to a potentially large family of different positive semidefinite kernels. The complexity of our algorithm does not increase significantly with respect to the number of kernels on the kernel family. Experiments on several benchmark datasets demonstrate that generalization performance of the proposed algorithm is not significantly different from that achieved by the standard KFD in which the kernel parameters have been tuned using cross validation. We also present results on a real-life colon cancer dataset that demonstrate the efficiency of the proposed method.

Includes members:
  Member "Regularization Networks and Support Vector Machines":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "On the Noise Model of Support Vector Machines Regression")
  Member "Fisher+Kernel criterion for discriminant analysis":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "A two-stage head pose estimation framework and evaluation")

Question: Please tell me which research area the co-authored paper (i.e., the source paper of the center hyperedge) belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Mathematics