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: "cost bandwidth tradeoff in distributed storage systems"
  Abstract: Distributed storage systems are mainly justified due to the limited amount of storage capacity and improving the reliability through distributing data over multiple storage nodes. On the other hand, it may happen the data is stored in unreliable nodes, while it is desired the end user to have a reliable access to the stored data. So, in an event that a node is damaged, to prevent the system reliability to regress, it is necessary to regenerate a new node with the same amount of stored data as the damaged node to retain the number of storage nodes, thereby having the previous reliability. This requires the new node to connect to some of existing nodes and downloads the required information, thereby occupying some bandwidth, called the repair bandwidth. On the other hand, it is more likely the cost of downloading varies across different nodes. This paper aims at investigating the theoretical cost-bandwidth tradeoff, and more importantly, it is demonstrated that any point on this curve can be achieved through the use of the so called generalized regenerating codes which is an enhancement of the regeneration codes introduced by Dimakis et al. in [1].

Connected through hyperedge HE-1 (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-2 (induced by source paper "capacity of distributed storage systems with clusters and separate nodes"):
  with members:
    - "storage and repair bandwidth tradeoff for distributed storage systems with clusters and separate nodes"
    - "the storage versus repair bandwidth trade off for clustered storage systems"
    - "rack aware regenerating codes for data centers"
    - "optimal repair layering for erasure coded data centers from theory to practice"
    - "video streaming in distributed erasure coded storage systems stall duration analysis"
    - "the storage vs repair bandwidth trade off for multiple failures in clustered storage networks"
    - "capacity of clustered distributed storage"
    - "joint latency and cost optimization for erasure coded data center storage"

Connected through hyperedge HE-3 (induced by source paper "capacity of dynamical storage systems"):
  with members:
    - "liquid cloud storage"
    - "capacity of clustered distributed storage"
    - "coding for fast content download"
    - "repairing multiple failures with coordinated and adaptive regenerating codes"

Connected through hyperedge HE-4 (induced by source paper "the storage versus repair bandwidth trade off for clustered storage systems"):
  with members:
    - "optimal repair layering for erasure coded data centers from theory to practice"
    - "capacity of clustered distributed storage"
    - "a note on secure minimum storage regenerating codes"
    - "architecture aware coding for distributed storage repairable block failure resilient codes"
    - "non homogeneous two rack model for distributed storage systems"
    - "capacity and security of heterogeneous distributed storage systems"
    - "a realistic distributed storage system the rack model"
    - "distributed storage codes with repair by transfer and nonachievability of interior points on the storage bandwidth tradeoff"

Connected through hyperedge HE-5 (induced by source paper "rack aware regenerating codes for data centers"):
  with members:
    - "explicit construction of mbr codes for clustered distributed storage"
    - "the storage versus repair bandwidth trade off for clustered storage systems"
    - "a class of msr codes for clustered distributed storage"
    - "optimal repair layering for erasure coded data centers from theory to practice"
    - "capacity of clustered distributed storage"
    - "minimum storage regenerating codes for all parameters"
    - "xoring elephants novel erasure codes for big data"
    - "a realistic distributed storage system that minimizes data storage and repair bandwidth"

Connected through hyperedge HE-6 (induced by source paper "storage and repair bandwidth tradeoff for distributed storage systems with clusters and separate nodes"):
  with members:
    - "the storage versus repair bandwidth trade off for clustered storage systems"
    - "rack aware regenerating codes for data centers"
    - "optimal repair layering for erasure coded data centers from theory to practice"
    - "capacity of clustered distributed storage"
    - "minimum storage regenerating codes for all parameters"
    - "non homogeneous two rack model for distributed storage systems"
    - "capacity and security of heterogeneous distributed storage systems"
    - "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 "multi rack distributed data storage networks"):
  with members:
    - "the storage versus repair bandwidth trade off for clustered storage systems"
    - "increasing availability in distributed storage systems via clustering"
    - "capacity of clustered distributed storage"
    - "maximally recoverable codes for grid like topologies"
    - "architecture aware coding for distributed storage repairable block failure resilient codes"
    - "codes with hierarchical locality"
    - "xoring elephants novel erasure codes for big data"
    - "a realistic distributed storage system that minimizes data storage and repair bandwidth"

Connected through hyperedge HE-8 (induced by source paper "tradeoff for heterogeneous distributed storage systems between storage and repair cost"):
  with members:
    - "the storage repair bandwidth trade off of exact repair linear regenerating codes for the case d k n 1"
    - "new codes and inner bounds for exact repair in distributed storage systems"
    - "on heterogeneous regenerating codes and capacity of distributed storage systems"
    - "xoring elephants novel erasure codes for big data"
    - "capacity and security of heterogeneous distributed storage systems"
    - "distributed storage allocations"
    - "allocations for heterogenous distributed storage"
    - "a survey on network codes for distributed storage"

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)