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: "quasi cyclic flexible regenerating codes"
  Abstract: Department of Information and Communications Engineering, Universitat Auto`noma de Barcelona{Bernat.Gaston | Jaume.Pujol | Merce.Villanueva}@uab.catAbstractIn a distributed storage environment, where the data is placed in nodes connected through a network, it is likelythat one of these nodes fails. It is known that the use of erasure coding improves the fault tolerance and minimizesthe redundancy added in distributed storage environments. The use of regenerating codes not only make the most ofthe erasure coding improvements, but also minimizes the amount of data needed to regenerate a failed node.In this paper, a new family of regenerating codes based on quasi-cyclic codes is presented. Quasi-cyclic ﬂexibleminimum storage regenerating (QCFMSR) codes are constructed and their existence is proved. Quasi-cyclic ﬂexibleregenerating codes with minimum bandwidth constructed from a base QCFMSR code are also provided. These codesnot only achieve optimal MBR parameters in terms of stored data and repair bandwidth, but also for an speciﬁcchoice of the parameters involved, they can be decreased under the optimal MBR point.Quasi-cyclic ﬂexible regenerating codes are very interesting because of their simplicity and low complexity. Theyallow exact repair-by-transfer in the minimum bandwidth case and an exact pseudo repair-by-transfer in the MSRcase, where operations are needed only when a new node enters into the system replacing a lost one.

Connected through hyperedge HE-1 (induced by source paper "information theoretically secure erasure codes for distributed storage"):
  with members:
    - "toward optimal secure distributed storage systems with exact repair"
    - "the storage repair bandwidth trade off of exact repair linear regenerating codes for the case d k n 1"
    - "a framework of constructions of minimal storage regenerating codes with the optimal access update property"
    - "optimal locally repairable and secure codes for distributed storage systems"
    - "an improved outer bound on the storage repair bandwidth tradeoff of exact repair regenerating codes"
    - "a framework of constructions of minimum storage regenerating codes with the optimal update access property for distributed storage systems based on invariant subspace technique"
    - "novel repair by transfer codes and systematic exact mbr codes with lower complexities and smaller field sizes"
    - "generalization of rashmi shah kumar minimum storage regenerating codes"

Connected through hyperedge HE-2 (induced by source paper "erasure codes with simplex locality"):
  with members:
    - "a family of optimal locally recoverable codes"
    - "locally repairable codes with multiple repair alternatives"
    - "codes with local regeneration"
    - "optimal linear codes with a local error correction property"
    - "locally repairable codes"
    - "self repairing codes for distributed storage a projective geometric construction"
    - "on the locality of codeword symbols"
    - "self repairing homomorphic codes for distributed storage systems"

Connected through hyperedge HE-3 (induced by source paper "a piggybacking design framework for read and download efficient distributed storage codes"):
  with members:
    - "a high rate msr code with polynomial sub packetization level"
    - "repairing reed solomon codes"
    - "optimal locally repairable and secure codes for distributed storage systems"
    - "characterizing the rate region of the 4 3 3 exact repair regenerating codes"
    - "a family of optimal locally recoverable codes"
    - "update efficient regenerating codes with minimum per node storage"
    - "repair optimal mds array codes over gf 2"
    - "error correcting regenerating and locally repairable codes via rank metric codes"

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.IT(Information Theory)