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 "disjoint difference families and their applications"):
  Abstract: Difference sets and their generalisations to difference families arise from the study of designs and many other applications. Here we give a brief survey of some of these applications, noting in particular the diverse definitions of difference families and the variations in priorities in constructions. We propose a definition of disjoint difference families that encompasses these variations and allows a comparison of the similarities and disparities. We then focus on two constructions of disjoint difference families arising from frequency hopping sequences and showed that they are in fact the same. We conclude with a discussion of the notion of equivalence for frequency hopping sequences and for disjoint difference families.

Includes members:
  Member "non overlapping codes":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "mutually uncorrelated codes for dna storage")
  Member "new families of optimal frequency hopping sequence sets":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "new families of strictly optimal frequency hopping sequence sets")
  Member "a combinatorial model of interference in frequency hopping schemes":
    also connected through other hyperedges:
      (none)
  Member "high rate self synchronizing codes":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "self synchronizing pulse position modulation with error tolerance")
  Member "information theoretic authentication and secrecy codes in the splitting model":
    also connected through other hyperedges:
      (none)
  Member "combinatorial bounds and characterizations of splitting authentication codes":
    also connected through other hyperedges:
      (none)
  Member "strong secrecy and reliable byzantine detection in the presence of an untrusted relay":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "byzantine multiple access")
  Member "optimal rate code constructions for computationally simple channels":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "locally decodable codes with randomized encoding")

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)