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: "secure cooperative regenerating codes for distributed storage systems"
  Abstract: Regenerating codes enable trading off repair bandwidth for storage in distributed storage systems (DSS). Due to their distributed nature, these systems are intrinsically susceptible to attacks, and they may also be subject to multiple simultaneous node failures. Cooperative regenerating codes allow bandwidth efficient repair of multiple simultaneous node failures. This paper analyzes storage systems that employ cooperative regenerating codes that are robust to (passive) eavesdroppers. The analysis is divided into two parts, studying both minimum bandwidth and minimum storage cooperative regenerating scenarios. First, the secrecy capacity for minimum bandwidth cooperative regenerating codes is characterized. Second, for minimum storage cooperative regenerating codes, a secure file size upper bound and achievability results are provided. These results establish the secrecy capacity for the minimum storage scenario for certain special cases. In all scenarios, the achievability results correspond to exact repair, and secure file size upper bounds are obtained using min-cut analyses over a suitable secrecy graph representation of DSS. The main achievability argument is based on an appropriate pre-coding of the data to eliminate the information leakage to the eavesdropper.

Connected through hyperedge HE-1 (induced by source paper "generic secure repair for distributed storage"):
  with members:
    - "toward optimal secure distributed storage systems with exact repair"
    - "on secrecy capacity of minimum storage regenerating codes"
    - "optimal locally repairable and secure codes for distributed storage systems"
    - "weakly secure regenerating codes for distributed storage"
    - "information theoretically secure regenerating codes for distributed storage"

Connected through hyperedge HE-2 (induced by source paper "security concerns in minimum storage cooperative regenerating codes"):
  with members:
    - "on secrecy capacity of minimum storage regenerating codes"
    - "layered exact repair regenerating codes via embedded error correction and block designs"
    - "an alternate construction of an access optimal regenerating code with optimal sub packetization level"
    - "codes between mbr and msr points with exact repair property"
    - "optimal locally repairable and secure codes for distributed storage systems"
    - "zigzag codes mds array codes with optimal rebuilding"
    - "data secrecy in distributed storage systems under exact repair"
    - "exact repair regenerating codes via layered erasure correction and block designs"

Connected through hyperedge HE-3 (induced by source paper "centralized repair of multiple node failures with applications to communication efficient secret sharing"):
  with members:
    - "on the tradeoff region of secure exact repair regenerating codes"
    - "minimum storage regenerating codes for all parameters"
    - "broadcast repair for wireless distributed storage systems"
    - "explicit constructions of high rate mds array codes with optimal repair bandwidth"
    - "security concerns in minimum storage cooperative regenerating codes"
    - "optimal rebuilding of multiple erasures in mds codes"
    - "on secrecy capacity of minimum storage regenerating codes"
    - "a high rate msr code with polynomial sub packetization level"

Connected through hyperedge HE-4 (induced by source paper "architecture aware coding for distributed storage repairable block failure resilient codes"):
  with members:
    - "the storage versus repair bandwidth trade off for clustered storage systems"
    - "layered exact repair regenerating codes via embedded error correction and block designs"
    - "repair locality with multiple erasure tolerance"
    - "locality and availability in distributed storage"
    - "optimal locally repairable and secure codes for distributed storage systems"
    - "optimal fractional repetition codes based on graphs and designs"
    - "repairable block failure resilient codes"
    - "a family of optimal locally recoverable codes"

Connected through hyperedge HE-5 (induced by source paper "cooperative repair of multiple node failures in distributed storage systems"):
  with members:
    - "progress on high rate msr codes enabling arbitrary number of helper nodes"
    - "explicit constructions of high rate mds array codes with optimal repair bandwidth"
    - "security concerns in minimum storage cooperative regenerating codes"
    - "a high rate msr code with polynomial sub packetization level"
    - "cooperative local repair in distributed storage"
    - "repairing reed solomon codes"
    - "characterizing the rate region of the 4 3 3 exact repair regenerating codes"
    - "xoring elephants novel erasure codes for big data"

Connected through hyperedge HE-6 (induced by source paper "a note on secure minimum storage regenerating codes"):
  with members:
    - "progress on high rate msr codes enabling arbitrary number of helper nodes"
    - "minimum storage regenerating codes for all parameters"
    - "explicit constructions of high rate mds array codes with optimal repair bandwidth"
    - "toward optimal secure distributed storage systems with exact repair"
    - "explicit constructions of optimal access mds codes with nearly optimal sub packetization"
    - "security concerns in minimum storage cooperative regenerating codes"
    - "a high rate msr code with polynomial sub packetization level"
    - "characterization of secrecy capacity for general msr codes under passive eavesdropping model"

Connected through hyperedge HE-7 (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-8 (induced by source paper "on secrecy capacity of minimum storage regenerating codes"):
  with members:
    - "toward optimal secure distributed storage systems with exact repair"
    - "shortened regenerating codes"
    - "a framework of constructions of minimal storage regenerating codes with the optimal access update property"
    - "layered exact repair regenerating codes via embedded error correction and block designs"
    - "an alternate construction of an access optimal regenerating code with optimal sub packetization level"
    - "codes between mbr and msr points with exact repair property"
    - "outer bounds for exact repair codes"
    - "optimal locally repairable and secure codes for distributed storage systems"

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)