human: Given a node-centered hypergraph: <hypergraph>, where nodes represent authors and hyperedges represent groups of authors who co-authored the same paper.

Details of the hypergraph:
Center node: "Coverage and generalization in an artificial immune system"
  Abstract: LISYS is an artificial immune system framework which is specialized for the problem of network intrusion detection. LISYS learns to detect abnormal packets by observing normal network traffic. Because LISYS sees only a partial sample of normal traffic, it must generalize from its observations in order to characterize normal behavior correctly. A variation of the r-contiguous bits matching rule is introduced, and its effect on coverage and generalization is studied. The effect of representation diversity on coverage and generalization is also explored by studying permutations in the order of bits in the representation.

Connected through hyperedge HE-1 (induced by source paper "Is negative selection appropriate for anomaly detection"):
  with members:
    - "Review Article: Recent Advances in Artificial Immune Systems: Models and Applications"
    - "Emphasizing typing signature in keystroke dynamics using immune algorithms"

Connected through hyperedge HE-2 (induced by source paper "Architecture for an Artificial Immune System"):
  with members:
    - "An immunity-based technique to characterize intrusions in computer networks"

Question: Please tell me which research area the center author belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science