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: "rate region of the 4 3 3 exact repair regenerating codes"
  Abstract: Exact-repair regenerating codes are considered for the case (n,k,d)=(4,3,3), for which a complete characterization of the rate region is provided. This characterization answers in the affirmative the open question whether there exists a non-vanishing gap between the optimal bandwidth-storage tradeoff of the functional-repair regenerating codes (i.e., the cut-set bound) and that of the exact-repair regenerating codes. The converse proof relies on the existence of symmetric optimal solutions. For the achievability, only one non-trivial corner point of the rate region needs to be addressed, for which an explicit binary code construction is given.

Connected through hyperedge HE-1 (induced by source paper "increasing availability in distributed storage systems via clustering"):
  with members:
    - "the storage versus repair bandwidth trade off for clustered storage systems"
    - "an explicit coupled layer construction of a high rate msr code with low sub packetization level small field size and all node repair"
    - "explicit constructions of high rate mds array codes with optimal repair bandwidth"
    - "the storage repair bandwidth trade off of exact repair linear regenerating codes for the case d k n 1"
    - "achieving arbitrary locality and availability in binary codes"
    - "layered exact repair regenerating codes via embedded error correction and block designs"
    - "locality and availability in distributed storage"
    - "characterizing the rate region of the 4 3 3 exact repair regenerating codes"

Connected through hyperedge HE-2 (induced by source paper "a connection between locally repairable codes and exact regenerating codes"):
  with members:
    - "when locally repairable codes meet regenerating codes what if some helpers are unavailable"
    - "layered exact repair regenerating codes via embedded error correction and block designs"
    - "locally repairable codes and matroid theory"
    - "codes between mbr and msr points with exact repair property"
    - "when and by how much can helper node selection improve regenerating codes"
    - "outer bounds for exact repair codes"
    - "optimal locally repairable and secure codes for distributed storage systems"
    - "new codes and inner bounds for exact repair in distributed storage systems"

Connected through hyperedge HE-3 (induced by source paper "toward optimal secure distributed storage systems with exact repair"):
  with members:
    - "layered exact repair regenerating codes via embedded error correction and block designs"
    - "outer bounds for exact repair codes"
    - "optimal locally repairable and secure codes for distributed storage systems"
    - "new codes and inner bounds for exact repair in distributed storage systems"
    - "characterizing the rate region of the 4 3 3 exact repair regenerating codes"
    - "an improved outer bound on the storage repair bandwidth tradeoff of exact repair regenerating codes"
    - "data secrecy in distributed storage systems under exact repair"
    - "a solution to the network challenges of data recovery in erasure coded distributed storage systems a study on the facebook warehouse cluster"

Connected through hyperedge HE-4 (induced by source paper "mds codes with progressive engagement property for cloud storage systems"):
  with members:
    - "the storage repair bandwidth trade off of exact repair linear regenerating codes for the case d k n 1"
    - "zigzag codes mds array codes with optimal rebuilding"
    - "exact repair regenerating codes via layered erasure correction and block designs"
    - "optimal repair of mds codes in distributed storage via subspace interference alignment"
    - "a survey on network codes for distributed storage"
    - "exact regeneration codes for distributed storage repair using interference alignment"
    - "explicit codes minimizing repair bandwidth for distributed storage"

Connected through hyperedge HE-5 (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-6 (induced by source paper "a probabilistic approach towards exact repair regeneration codes"):
  with members:
    - "shortened regenerating codes"
    - "a note on the rate region of exact repair regenerating codes"
    - "the storage repair bandwidth trade off of exact repair linear regenerating codes for the case d k n 1"
    - "layered exact repair regenerating codes via embedded error correction and block designs"
    - "new codes and inner bounds for exact repair in distributed storage systems"
    - "an improved outer bound on the storage repair bandwidth tradeoff of exact repair regenerating codes"
    - "zigzag codes mds array codes with optimal rebuilding"
    - "optimal exact regenerating codes for distributed storage at the msr and mbr points via a product matrix construction"

Connected through hyperedge HE-7 (induced by source paper "codes between mbr and msr points with exact repair property"):
  with members:
    - "exact regenerating codes between mbr and msr points"
    - "an improved outer bound on the storage repair bandwidth tradeoff of exact repair regenerating codes"
    - "zigzag codes mds array codes with optimal rebuilding"
    - "capacity and security of heterogeneous distributed storage systems"
    - "exact repair regenerating codes via layered erasure correction and block designs"
    - "distributed storage codes with repair by transfer and nonachievability of interior points on the storage bandwidth tradeoff"
    - "codes with local regeneration"
    - "locally repairable codes"

Connected through hyperedge HE-8 (induced by source paper "new codes and inner bounds for exact repair in distributed storage systems"):
  with members:
    - "distributed data storage systems with opportunistic repair"
    - "exact regenerating codes between mbr and msr points"
    - "capacity and security of heterogeneous distributed storage systems"
    - "exact repair regenerating codes via layered erasure correction and block designs"
    - "high rate regenerating codes through layering"
    - "optimal exact regenerating codes for distributed storage at the msr and mbr points via a product matrix construction"
    - "repair optimal erasure codes through hadamard designs"
    - "on codes for optimal rebuilding access"

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)