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 "compiling finite domain constraints to sat with bee the director s cut"):
  Abstract: BEE is a compiler which facilitates solving finite domain constraints by encoding them to CNF and applying an underlying SAT solver. In BEE constraints are modeled as Boolean functions which propagate information about equalities between Boolean literals. This information is then applied to simplify the CNF encoding of the constraints. We term this process equi-propagation. A key factor is that considering only a small fragment of a constraint model at one time enables to apply stronger, and even complete reasoning to detect equivalent literals in that fragment. Once detected, equivalences propagate to simplify the entire constraint model and facilitate further reasoning on other fragments. BEE is described in several recent papers. In this paper, after a quick review of BEE, we elaborate on two undocumented details of the implementation: the hybrid encoding of cardinality constraints and complete equi-propagation. We thendescribe on-going work aimed to extend BEE to consider binary representation of numbers.

Includes members:
  Member "boolean equi propagation for concise and efficient sat encodings of combinatorial problems":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "optimal depth sorting networks")
  Member "compiling finite domain constraints to sat with bee":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "optimal depth sorting networks")
  Member "boolean equi propagation for optimized sat encoding":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "optimal depth sorting networks")
  Member "optimal base encodings for pseudo boolean constraints":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "boolean equi propagation for concise and efficient sat encodings of combinatorial problems")
  Member "logic programming with satisfiability":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "boolean equi propagation for concise and efficient sat encodings of combinatorial problems")

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.PL(Programming Languages)