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 Formally Verified Compiler Back-end"):
  Abstract: This article describes the development and formal verification (proof of semantic preservation) of a compiler back-end from Cminor (a simple imperative intermediate language) to PowerPC assembly code, using the Coq proof assistant both for programming the compiler and for proving its soundness. Such a verified compiler is useful in the context of formal methods applied to the certification of critical software: the verification of the compiler guarantees that the safety properties proved on the source code hold for the executable compiled code as well.

Includes members:
  Member "A type system for certified binaries":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "Compiling polymorphism using intensional type analysis")
  Member "A rely-guarantee-based simulation for verifying concurrent program transformations":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "Verified Compilation for Shared-Memory C")

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: Computer science