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: "diffusion based nanonetworking a new modulation technique and performance analysis"
  Abstract: In this letter, we propose a new molecular modulation scheme for nanonetworks. To evaluate the scheme we introduce a more realistic system model for molecule dissemination and propagation processes based on the Poisson distribution. We derive the probability of error of our proposed scheme as well as the previously introduced schemes, including concentration and molecular shift keying modulations by taking into account the error propagation effect of previously decoded symbols. Since in our scheme the decoding of the current symbol does not depend on the previously transmitted and decoded symbols, we do not encounter error propagation; and so as our numerical results indicate, the proposed scheme outperforms the previously introduced schemes. We then introduce a general molecular communication system and use information theoretic tools to derive fundamental limits on its probability of error.

Connected through hyperedge HE-1 (induced by source paper "simulation study and analysis of diffusive molecular communications with an apertured plane"):
  with members:
    - "index modulation for molecular communication via diffusion systems"
    - "molecular information delivery in porous media"
    - "on the design of matched filters for molecule counting receivers"
    - "molecular signal modeling of a partially counting absorbing spherical receiver"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "arrival modeling and error analysis for molecular communication via diffusion with drift"
    - "symbol interval optimization for molecular communication with drift"
    - "novel modulation techniques using isomers as messenger molecules for nano communication networks via diffusion"

Connected through hyperedge HE-2 (induced by source paper "performance enhancement of diffusion based molecular communication with photolysis"):
  with members:
    - "type based sign modulation for molecular communication"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "wireless sensor network virtualization a survey"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "isi mitigation techniques in molecular communication"
    - "symbol interval optimization for molecular communication with drift"
    - "molecular communication in fluid media the additive inverse gaussian noise channel"

Connected through hyperedge HE-3 (induced by source paper "a general analytical approximation to impulse response of 3 d microfluidic channels in molecular communication"):
  with members:
    - "channel model of molecular communication via diffusion in a vessel like environment considering a partially covering receiver"
    - "modeling duct flow for molecular communication"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "isi mitigation techniques in molecular communication"
    - "establishing digital molecular communications in blood vessels"

Connected through hyperedge HE-4 (induced by source paper "the effective geometry monte carlo algorithm applications to molecular communication"):
  with members:
    - "a novel a priori simulation algorithm for absorbing receivers in diffusion based molecular communication systems"
    - "compound poisson noise sources in diffusion based molecular communication"
    - "impulse response of the molecular diffusion channel with a spherical absorbing receiver and a spherical reflective boundary"
    - "a comprehensive survey of recent advancements in molecular communication"

Connected through hyperedge HE-5 (induced by source paper "spatial modulation for molecular communication"):
  with members:
    - "spatial coding techniques for molecular mimo"
    - "channel estimation for diffusive mimo molecular communications"
    - "machine learning based channel modeling for molecular mimo communications"
    - "active versus passive receiver model transforms for diffusive molecular communication"
    - "chemical propagation pattern for molecular communications"
    - "molecular mimo from theory to prototype"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"

Connected through hyperedge HE-6 (induced by source paper "diffusive mimo molecular communications channel estimation equalization and detection"):
  with members:
    - "stochastic channel modeling for diffusive mobile molecular communication systems"
    - "channel estimation for diffusive mimo molecular communications"
    - "on the capacity of diffusion based molecular timing channels"
    - "comprehensive reactive receiver modeling for diffusive molecular communication systems reversible binding molecule degradation and finite number of receptors"
    - "channel estimation for diffusive molecular communications"
    - "molecular mimo from theory to prototype"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "analysis and design of multi hop diffusion based molecular communication networks"

Connected through hyperedge HE-7 (induced by source paper "diffusive molecular communication in biological cylindrical environment"):
  with members:
    - "a general analytical approximation to impulse response of 3 d microfluidic channels in molecular communication"
    - "channel model of molecular communication via diffusion in a vessel like environment considering a partially covering receiver"
    - "impulse response of the molecular diffusion channel with a spherical absorbing receiver and a spherical reflective boundary"
    - "modeling duct flow for molecular communication"
    - "modeling and simulation of molecular communication systems with a reversible adsorption receiver"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "establishing digital molecular communications in blood vessels"

Connected through hyperedge HE-8 (induced by source paper "compound poisson noise sources in diffusion based molecular communication"):
  with members:
    - "stochastic channel modeling for diffusive mobile molecular communication systems"
    - "analysis and design of multi hop diffusion based molecular communication networks"
    - "stable distributions as noise models for molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "tcp like molecular communications"
    - "a unifying model for external noise sources and isi in diffusive molecular communication"
    - "isi mitigation techniques in molecular communication"
    - "capacity of diffusion based molecular communication with ligand receptors"

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)