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: "zigzag codes mds array codes with optimal rebuilding"
  Abstract: Maximum distance separable (MDS) array codes are widely used in storage systems to protect data against erasures. We address the rebuilding ratio problem, namely, in the case of erasures, what is the fraction of the remaining information that needs to be accessed in order to rebuild exactly the lost information? It is clear that when the number of erasures equals the maximum number of erasures that an MDS code can correct, then the rebuilding ratio is 1 (access all the remaining information). However, the interesting and more practical case is when the number of erasures is smaller than the erasure correcting capability of the code. For example, consider an MDS code that can correct two erasures: What is the smallest amount of information that one needs to access in order to correct a single erasure? Previous work showed that the rebuilding ratio is bounded between [1/2] and [3/4]; however, the exact value was left as an open problem. In this paper, we solve this open problem and prove that for the case of a single erasure with a two-erasure correcting code, the rebuilding ratio is [1/2]. In general, we construct a new family of r-erasure correcting MDS array codes that has optimal rebuilding ratio of [1/(r)] in the case of a single erasure. Our array codes have efficient encoding and decoding algorithms (for the cases r=2 and r=3, they use a finite field of size 3 and 4, respectively) and an optimal update property.

Connected through hyperedge HE-1 (induced by source paper "enabling optimal access and error correction for the repair of reed solomon codes"):
  with members:
    - "explicit constructions of msr codes for clustered distributed storage the rack aware storage model"
    - "optimal repairing schemes for reed solomon codes with alphabet sizes linear in lengths under the rack aware model"
    - "on the i o costs of some repair schemes for full length reed solomon codes"
    - "the repair problem for reed solomon codes optimal repair of single and multiple erasures asymptotically optimal node size"
    - "a tight lower bound on the sub packetization level of optimal access msr and mds codes"
    - "repairing reed solomon codes with multiple erasures"
    - "minimum storage regenerating codes for all parameters"
    - "explicit constructions of high rate mds array codes with optimal repair bandwidth"

Connected through hyperedge HE-2 (induced by source paper "convertible codes efficient conversion of coded data in distributed storage"):
  with members:
    - "an exponential lower bound on the sub packetization of msr codes"
    - "combinatorial alphabet dependent bounds for locally recoverable codes"
    - "capacity of locally recoverable codes"
    - "a layered architecture for erasure coded consistent distributed storage"
    - "product matrix msr codes with bandwidth adaptive exact repair"
    - "bandwidth adaptive error resilient mbr exact repair regenerating codes"
    - "the storage vs repair bandwidth trade off for multiple failures in clustered storage networks"
    - "locally recoverable codes from algebraic curves and surfaces"

Connected through hyperedge HE-3 (induced by source paper "cascade codes for distributed storage systems"):
  with members:
    - "a generic transformation to enable optimal repair in mds codes for distributed storage systems"
    - "determinant codes with helper independent repair for single and multiple failures"
    - "a class of msr codes for clustered distributed storage"
    - "product matrix msr codes with bandwidth adaptive exact repair"
    - "bandwidth adaptive error resilient mbr exact repair regenerating codes"
    - "a tight lower bound on the sub packetization level of optimal access msr and mds codes"
    - "capacity of clustered distributed storage"
    - "progress on high rate msr codes enabling arbitrary number of helper nodes"

Connected through hyperedge HE-4 (induced by source paper "explicit constructions of msr codes for clustered distributed storage the rack aware storage model"):
  with members:
    - "a generic transformation to enable optimal repair in mds codes for distributed storage systems"
    - "the storage versus repair bandwidth trade off for clustered storage systems"
    - "rack aware regenerating codes for data centers"
    - "cooperative repair constructions of optimal mds codes for all admissible parameters"
    - "a class of msr codes for clustered distributed storage"
    - "erasure coding for distributed storage an overview"
    - "optimal repair layering for erasure coded data centers from theory to practice"
    - "increasing availability in distributed storage systems via clustering"

Connected through hyperedge HE-5 (induced by source paper "an exponential lower bound on the sub packetization of msr codes"):
  with members:
    - "optimal repair of reed solomon codes achieving the cut set bound"
    - "mds code constructions with small sub packetization and near optimal repair bandwidth"
    - "a tight lower bound on the sub packetization level of optimal access msr and mds codes"
    - "minimum storage regenerating codes for all parameters"
    - "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"
    - "explicit constructions of optimal access mds codes with nearly optimal sub packetization"
    - "improved upper bounds on systematic length for linear minimum storage regenerating codes"

Connected through hyperedge HE-6 (induced by source paper "new constructions of cooperative msr codes reducing node size to exp o n"):
  with members:
    - "cooperative repair constructions of optimal mds codes for all admissible parameters"
    - "on the achievability region of regenerating codes for multiple erasures"
    - "improved schemes for asymptotically optimal repair of mds codes"
    - "optimal repair of reed solomon codes achieving the cut set bound"
    - "optimal repair schemes for some families of full length reed solomon codes"
    - "repairing reed solomon codes with multiple erasures"
    - "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"

Connected through hyperedge HE-7 (induced by source paper "on epsilon mscr codes for two erasures"):
  with members:
    - "cooperative repair constructions of optimal mds codes for all admissible parameters"
    - "scalar mscr codes via the product matrix construction"
    - "mds code constructions with small sub packetization and near optimal repair bandwidth"
    - "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"
    - "cooperative repair of multiple node failures in distributed storage systems"
    - "explicit constructions of optimal access mds codes with nearly optimal sub packetization"
    - "an improved sub packetization bound for minimum storage regenerating codes"

Connected through hyperedge HE-8 (induced by source paper "a systematic construction of mds codes with small sub packetization level and near optimal repair bandwidth"):
  with members:
    - "a generic transformation to enable optimal repair in mds codes for distributed storage systems"
    - "minimum storage regenerating codes for all parameters"
    - "explicit constructions of high rate mds array codes with optimal repair bandwidth"
    - "explicit constructions of optimal access mds codes with nearly optimal sub packetization"
    - "optimal exact repair strategy for the parity nodes of the k 2 k zigzag code"
    - "a framework of constructions of minimal storage regenerating codes with the optimal access update property"
    - "an improved sub packetization bound for minimum storage regenerating codes"
    - "distributed storage codes with repair by transfer and nonachievability of interior points on the storage bandwidth tradeoff"

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)