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: "dna based storage trends and methods"
  Abstract: We provide an overview of current approaches to DNA-based storage system design and accompanying synthesis, sequencing and editing methods. We also introduce and analyze a suite of new constrained coding schemes for both archival and random access DNA storage channels. The mathematical basis of our work is the construction and design of sequences over discrete alphabets that avoid pre-specified address patterns, have balanced base content, and exhibit other relevant substring constraints. These schemes adapt the stored signals to the DNA medium and thereby reduce the inherent error-rate of the system.

Connected through hyperedge HE-1 (induced by source paper "the art of dna strings sixteen years of dna coding theory"):
  with members:
    - "on cyclic dna codes over the rings z_ 4 wz_ 4 and z_ 4 wz_ 4 vz_ 4 wvz_ 4"
    - "on cyclic dna codes over mathbb f _2 u mathbb f _2 u 2 mathbb f _2"
    - "new dna cyclic codes over rings"
    - "a rewritable random access dna based storage system"
    - "on cyclic dna codes over the ring z_4 u z_4"
    - "cyclic dna codes over f2 uf2 vf2 uvf2"
    - "natural data storage a review on sending information from now to then via nature"
    - "on cyclic dna codes"

Connected through hyperedge HE-2 (induced by source paper "codes in the damerau distance for dna storage"):
  with members:
    - "exact reconstruction from insertions in synchronization codes"
    - "codes correcting a burst of deletions or insertions"
    - "a rewritable random access dna based storage system"
    - "new multiple insertion deletion correcting codes for non binary alphabets"
    - "efficient low redundancy codes for correcting multiple deletions"
    - "an improvement to levenshtein s upper bound on the cardinality of deletion correcting codes"

Connected through hyperedge HE-3 (induced by source paper "variable length non overlapping codes"):
  with members:
    - "a gray code for cross bifix free sets"
    - "non overlapping matrices"
    - "non overlapping codes"
    - "a rewritable random access dna based storage system"
    - "cross bifix free codes within a constant factor of optimality"
    - "a new approach to cross bifix free sets"

Connected through hyperedge HE-4 (induced by source paper "asymmetric lee distance codes for dna based storage"):
  with members:
    - "a rewritable random access dna based storage system"
    - "codes for dna sequence profiles"
    - "generalized sphere packing bound"
    - "how to construct polar codes"
    - "coding for high density recording on a 1 d granular magnetic medium"
    - "capacity achieving polar codes for arbitrarily permuted parallel channels"

Connected through hyperedge HE-5 (induced by source paper "codes for dna storage channels"):
  with members:
    - "sets represented as the length n factors of a word"
    - "codes in permutations and error correction for rank modulation"

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.ET(Emerging Technologies)