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 "multiset estimates and combinatorial synthesis"):
  Abstract: This chapter (Partially based on: Levin MS (2012) Multiset estimates and combinatorial synthesis. Electronic preprint, p 30, 9 May 2012, http://arxiv.org/abs/1205.2046 [cs.SY]) addresses new interval multiset estimates and their usage in combinatorial synthesis methods (hierarchical morphological design, multiple choice problem, knapsack problem). The definition of interval multiset estimates, operations over the estimates (integration, comparison, aggregation, alignment), and usage in combinatorial synthesis are described including many numerical examples for various types of the estimates, for the operations over the estimates, for synthesis of three-component and four components systems, for hierarchical synthesis of three-layer hierarchical system.

Includes members:
  Member "morphological methods for design of modular systems a survey":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "towards decision support technology platform for modular systems")
  Member "aggregation of composite solutions strategies models examples":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "towards decision support technology platform for modular systems")

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.SY(Systems and Control)