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 "algebraic approach to promise constraint satisfaction"):
  Abstract: The complexity and approximability of the constraint satisfaction problem (CSP) has been actively studied over the last 20 years. A new version of the CSP, the promise CSP (PCSP) has recently been proposed, motivated by open questions about the approximability of variants of satisfiability and graph colouring. The PCSP significantly extends the standard decision CSP. The complexity of CSPs with a fixed constraint language on a finite domain has recently been fully classified, greatly guided by the algebraic approach, which uses polymorphisms --- high-dimensional symmetries of solution spaces --- to analyse the complexity of problems. The corresponding classification for PCSPs is wide open and includes some long-standing open questions, such as the complexity of approximate graph colouring, as special cases. #R##N#The basic algebraic approach to PCSP was initiated by Brakensiek and Guruswami, and in this paper we significantly extend it and lift it from concrete properties of polymorphisms to their abstract properties. We introduce a new class of problems that can be viewed as algebraic versions of the (Gap) Label Cover problem, and show that every PCSP with a fixed constraint language is equivalent to a problem of this form. This allows us to identify a "measure of symmetry" that is well suited for comparing and relating the complexity of different PCSPs via the algebraic approach. We demonstrate how our theory can be applied by improving the state-of-the-art in approximate graph colouring: we show that, for any $k\geq 3$, it is NP-hard to find a $(2k-1)$-colouring of a given $k$-colourable graph.

Includes members:
  Member "topology is relevant in a dichotomy conjecture for infinite domain constraint satisfaction problems":
    also connected through other hyperedges:
      (none)
  Member "promises make finite constraint satisfaction problems infinitary":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "sandwiches for promise constraint satisfaction")
  Member "dichotomy for symmetric boolean pcsps":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "the power of the combined basic lp and affine relaxation for promise csps")
  Member "an algorithmic blend of lps and ring equations for promise csps":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "the power of the combined basic lp and affine relaxation for promise csps")
  Member "improved inapproximability of rainbow coloring":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "improved hardness for h colourings of g colourable graphs")
  Member "super polylogarithmic hypergraph coloring hardness via low degree long codes":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "quasi polynomial algorithms for list coloring of nearly intersecting hypergraphs")
  Member "promise constraint satisfaction algebraic structure and a symmetric boolean dichotomy":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "algebraic theory of promise constraint satisfaction problems first steps")
  Member "a dichotomy theorem for nonuniform csps":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "when symmetries are not enough a hierarchy of hard constraint satisfaction 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.CC(Computational Complexity)