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: "overlapped circular sc ldpc codes and their modified coupled codes"
  Abstract: In this paper, overlapped circular spatially coupled low-density parity-check codes (OC-LDPC) are proposed and their modified coupled codes are derived, which show more improved performance compared with the spatially coupled low-density parity-check (SC-LDPC) codes. It is known that the SC-LDPC codes show asymptotically good performance when the chain length is sufficiently large. However, a large chain length requires a large number of iterations for decoding, which is often ignored in asymptotic analysis but it causes large decoding complexity in the decoding process. The proposed OC-LDPC codes reduce the decoding complexity while maintaining good asymptotic properties of the SC-LDPC codes. The improvement in the decoding complexity comes from that the proposed code is split into two SC-LDPC codes with shorter chain length during the decoding process. Thus, the OC-LDPC code can be decoded with lower iteration numbers required for decoding of two splitted SC-LDPC codes. Also, we design finite-length protograph-based codes for the proposed codes and it is shown that the proposed codes have superior finite-length code performances than the SC-LDPC codes.

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)