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 "hybrid v csps and algebraic reductions"):
  Abstract: Constraint Satisfaction Problem (CSP) can be stated as computing a homomorphism $\mbox{$\bR \rightarrow \bGamma$}$ between two relational structures, e.g.\ between two directed graphs. #R##N#Recently, the {\em hybrid} setting, where both sides are restricted simultaneously, attracted some attention. It assumes that the right side structure $\bGamma$ is fixed and $\bR$ belongs to a class of relational structures $\mathcal{H}$ (called a {\em structural restriction}) that is, additionally, {\em closed under inverse homomorphisms}. The key tool that connects hybrid CSPs with fixed-template CSPs is a construction called a "lifted language," namely a multi-sorted language $\bGamma_{\bR}$ that can be constructed from an input $\bR$. The tractability of a language $\bGamma_{\bR}$ for any input $\bR\in\mathcal{H}$ is a necessary condition for tractability of the hybrid problem. #R##N#First we investigate the case when the last property is not only necessary, but also is sufficient. It turns out that in the latter case, if Bulatov-Jeavons-Krokhin characterization of tractable constraint languages is correct, a structural restriction $\mathcal{H}$ is tractable if and only if it consists of structures that can be homomorphically mapped to some fixed finite relational structure $\bGamma'$ (that depends only on $\bGamma$). #R##N#In the second part we generalize the construction of $\bGamma'$ and introduce a finite structure $\bGamma^{\mathfrak{B}}$, indexed by some set of finite algebras $\mathfrak{B}$. We prove that under some natural conditions on $\mathfrak{B}$, $\textsc{CSP}(\bGamma)$ is polynomial-time Turing reducible to $\textsc{CSP}(\bGamma^{\mathfrak{B}})$ and some polymorphisms of $\bGamma$ have analogs in $\pol(\bGamma^{\mathfrak{B}})$. This construction introduce a new set of algorithms for fixed-template CSPs and we suggest it as a tool to approach Feder-Vardi dichotomy conjecture.

Includes members:
  Member "algebraic properties of valued constraint satisfaction problem":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "the complexity of boolean surjective general valued csps")
  Member "the complexity of general valued csps":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "the complexity of boolean surjective general valued csps")
  Member "effectiveness of structural restrictions for hybrid csps":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "on planar valued csps")
  Member "sherali adams relaxations for valued csps":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "on planar valued csps")
  Member "the complexity of conservative valued csps":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "representing fitness landscapes by valued constraints to understand the complexity of local search")
  Member "on the reduction of the csp dichotomy conjecture to digraphs":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "a finer reduction of constraint problems to digraphs")
  Member "hybrid tractability of valued constraint problems":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "binary constraint satisfaction problems defined by excluded topological minors")

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)