human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "spectral algorithms for unique games"
  Abstract: We give a new algorithm for Unique Games which is based on purely {\em spectral} techniques, in contrast to previous work in the area, which relies heavily on semidefinite programming (SDP). Given a highly satisfiable instance of Unique Games, our algorithm is able to recover a good assignment. The approximation guarantee depends only on the completeness of the game, and not on the alphabet size, while the running time depends on spectral properties of the {\em Label-Extended} graph associated with the instance of Unique Games. #R##N#We further show that on input the integrality gap instance of Khot and Vishnoi, our algorithm runs in quasi-polynomial time and decides that the instance if highly unsatisfiable. Notably, when run on this instance, the standard SDP relaxation of Unique Games {\em fails}. As a special case, we also re-derive a polynomial time algorithm for Unique Games on expander constraint graphs. #R##N#The main ingredient of our algorithm is a technique to effectively use the full spectrum of the underlying graph instead of just the second eigenvalue, which is of independent interest. The question of how to take advantage of the full spectrum of a graph in the design of algorithms has been often studied, but no significant progress was made prior to this work.

Connected through hyperedge HE-1 (induced by source paper "efficient algorithms for the potts model on small set expanders"):
  with members:
    - "counting independent sets in unbalanced bipartite graphs"
    - "fast algorithms at low temperatures via markov chains"
    - "statistical physics approaches to unique games"
    - "algorithms for bis hard problems on expander graphs"
    - "algorithmic pirogov sinai theory"
    - "partitioning into expanders"
    - "improved cheeger s inequality analysis of spectral partitioning algorithms through higher order spectral gap"
    - "ferromagnetic potts model refined bis hardness and related results"

Connected through hyperedge HE-2 (induced by source paper "statistical physics approaches to unique games"):
  with members:
    - "a deterministic algorithm for counting colorings with 2 delta colors"
    - "deterministic search for cnf satisfying assignments in almost polynomial time"
    - "algorithmic pirogov sinai theory"
    - "computing the number of induced copies of a fixed graph in a bounded degree graph"
    - "mixing of the glauber dynamics for the ferromagnetic potts model"
    - "ferromagnetic potts model refined bis hardness and related results"
    - "how to play unique games on expanders"

Connected through hyperedge HE-3 (induced by source paper "hermitian laplacians and a cheeger inequality for the max 2 lin problem"):
  with members:
    - "partitioning well clustered graphs spectral clustering works"
    - "max cut and the smallest eigenvalue"
    - "nearly linear time algorithms for preconditioning and solving symmetric diagonally dominant linear systems"

Connected through hyperedge HE-4 (induced by source paper "computational topology and the unique games conjecture"):
  with members:
    - "unique games on the hypercube"
    - "on the expansion of group based lifts"
    - "small lifts of expander graphs are expanding"

Connected through hyperedge HE-5 (induced by source paper "approximating unique games using low diameter graph decomposition"):
  with members:
    - "unique games on the hypercube"
    - "min max graph partitioning and small set expansion"
    - "reductions between expansion problems"

Connected through hyperedge HE-6 (induced by source paper "lower bound for the unique games problem"):
  with members:
    - "subsampling mathematical relaxations and average case complexity"

Connected through hyperedge HE-7 (induced by source paper "unique games on the hypercube"):
  with members:
    - "analysis of boolean functions"
    - "hypercontractivity sum of squares proofs and their applications"
    - "making the long code shorter with applications to the unique games conjecture"
    - "how to play unique games on expanders"

Connected through hyperedge HE-8 (induced by source paper "rounding lasserre sdps using column selection and spectrum based approximation schemes for graph partitioning and quadratic ips"):
  with members:
    - "faster sdp hierarchy solvers for local rounding algorithms"
    - "hypercontractivity sum of squares proofs and their applications"
    - "majority is stablest discrete and sos"
    - "approximability and proof complexity"
    - "rounding semidefinite programming hierarchies via global correlation"
    - "approximating non uniform sparsest cut via generalized spectra"
    - "optimal column based low rank matrix reconstruction"
    - "near optimal column based matrix reconstruction"

Question: Please tell me which class the center node 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)