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: "regenerating codes a system perspective"
  Abstract: The explosion of the amount of data stored in cloud systems calls for more efficient paradigms for redundancy. While replication is widely used to ensure data availability, erasure correcting codes provide a much better trade-off between storage and availability. Regenerating codes are good candidates for they also offer low repair costs in term of network bandwidth. While they have been proven optimal, they are difficult to understand and parameterize. In this paper we provide an analysis of regenerating codes for practitioners to grasp the various trade-offs. More specifically we make two contributions: (i) we study the impact of the parameters by conducting an analysis at the level of the system, rather than at the level of a single device; (ii) we compare the computational costs of various implementations of codes and highlight the most efficient ones. Our goal is to provide system designers with concrete information to help them choose the best parameters and design for regenerating codes.

Connected through hyperedge HE-1 (induced by source paper "alpha entanglement codes practical erasure codes to archive data in unreliable environments"):
  with members:
    - "xoring elephants novel erasure codes for big data"
    - "staircase codes fec for 100 gb s otn"
    - "locally repairable codes"
    - "exact regeneration codes for distributed storage repair using interference alignment"
    - "decentralized erasure codes for distributed networked storage"

Connected through hyperedge HE-2 (induced by source paper "product matrix msr codes with bandwidth adaptive exact repair"):
  with members:
    - "bandwidth adaptive error resilient mbr exact repair regenerating codes"
    - "product matrix minimum storage regenerating codes with flexible number of helpers"
    - "mds codes with progressive engagement property for cloud storage systems"
    - "general sub packetized access optimal regenerating codes"
    - "explicit constructions of high rate mds array codes with optimal repair bandwidth"
    - "asymptotically optimal regenerating codes over any field"
    - "explicit constructions of optimal access mds codes with nearly optimal sub packetization"
    - "a high rate msr code with polynomial sub packetization level"

Connected through hyperedge HE-3 (induced by source paper "optimal control of storage regeneration with repair codes"):
  with members:
    - "a solution to the network challenges of data recovery in erasure coded distributed storage systems a study on the facebook warehouse cluster"
    - "locally repairable codes"

Connected through hyperedge HE-4 (induced by source paper "asymptotically optimal regenerating codes over any field"):
  with members:
    - "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"
    - "on mbr codes with replication"
    - "explicit constructions of optimal access mds codes with nearly optimal sub packetization"
    - "optimal systematic distributed storage codes with fast encoding"
    - "novel repair by transfer codes and systematic exact mbr codes with lower complexities and smaller field sizes"
    - "explicit mbr all symbol locality codes"

Connected through hyperedge HE-5 (induced by source paper "optimal systematic distributed storage codes with fast encoding"):
  with members:
    - "fast product matrix regenerating codes"
    - "generalization of rashmi shah kumar minimum storage regenerating codes"
    - "xoring elephants novel erasure codes for big data"
    - "when do redundant requests reduce latency"
    - "zigzag codes mds array codes with optimal rebuilding"
    - "fast cloud pushing the envelope on delay performance of cloud storage with coding"
    - "a solution to the network challenges of data recovery in erasure coded distributed storage systems a study on the facebook warehouse cluster"
    - "distributed storage codes with repair by transfer and nonachievability of interior points on the storage bandwidth tradeoff"

Connected through hyperedge HE-6 (induced by source paper "repair scheduling in wireless distributed storage with d2d communication"):
  with members:
    - "what will 5g be"
    - "multi level coded caching"
    - "base station assisted device to device communications for high throughput wireless video networks"
    - "zigzag codes mds array codes with optimal rebuilding"
    - "device to device data storage for mobile cellular systems"
    - "a piggybacking design framework for read and download efficient distributed storage codes"
    - "fundamental limits of caching"
    - "distributed storage allocations"

Connected through hyperedge HE-7 (induced by source paper "fractional repetition codes with flexible repair from combinatorial designs"):
  with members:
    - "capacity of sum networks for different message alphabets"
    - "optimal locally repairable and secure codes for distributed storage systems"
    - "optimal fractional repetition codes based on graphs and designs"
    - "replication based storage systems with local repair"
    - "explicit mbr all symbol locality codes"
    - "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"

Connected through hyperedge HE-8 (induced by source paper "fast product matrix regenerating codes"):
  with members:
    - "core augmenting regenerating coding based recovery for single and concurrent failures in distributed storage systems"
    - "zigzag codes mds array codes with optimal rebuilding"
    - "a solution to the network challenges of data recovery in erasure coded distributed storage systems a study on the facebook warehouse cluster"
    - "distributed storage codes with repair by transfer and nonachievability of interior points on the storage bandwidth tradeoff"
    - "interference alignment in regenerating codes for distributed storage necessity and code constructions"
    - "access vs bandwidth in codes for storage"
    - "locally repairable codes"
    - "on the locality of codeword symbols"

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.DC(Distributed, Parallel, and Cluster Computing)