human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "binarisation for valued constraint satisfaction problems"):
  Abstract: We study methods for transforming valued constraint satisfaction problems (VCSPs) to binary VCSPs. First, we show that the standard dual encoding preserves many aspects  of the algebraic properties that capture the computational complexity of VCSPs. Second, we extend the reduction of CSPs to binary CSPs described by BulA©n et al. [Log. Methods Comput. Sci., 11 (2015)] to VCSPs. This reduction establishes that VCSPs over a fixed valued constraint language are polynomial-time equivalent to minimum-cost homomorphism problems over a fixed digraph.

Includes members:
  Member "the power of sherali adams relaxations for general valued csps":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "new dependencies of hierarchies in polynomial optimization")
  Member "a galois connection for weighted relational clones of infinite size":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "the complexity of boolean surjective general valued csps")
  Member "a finer reduction of constraint problems to digraphs":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "promise constraint satisfaction algebraic structure and a symmetric boolean dichotomy")
  Member "algebraic properties of valued constraint satisfaction problem":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "the complexity of boolean surjective general valued csps")
  Member "a reduction from valued csp to min cost homomorphism problem for digraphs":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "the power of sherali adams relaxations for general valued csps")
  Member "the complexity of general valued csps":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "the complexity of boolean surjective general valued csps")
  Member "sherali adams relaxations for valued csps":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "on planar valued csps")
  Member "robustly solvable constraint satisfaction problems":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "improved hardness for h colourings of g colourable graphs")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.DM(Discrete Mathematics)