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: "computer architecture with associative processor replacing last level cache and simd accelerator"
  Abstract: This study presents a novel computer architecture where a last level cache and a SIMD accelerator are replaced by an Associative Processor. Associative Processor combines data storage and data processing and provides parallel computational capabilities and data memory at the same time. An analytic performance model of the new computer architecture is introduced. Comparative analysis supported by simulation shows that this novel architecture may outperform a conventional architecture comprising a SIMD coprocessor and a shared last level cache while consuming less power.

Connected through hyperedge HE-1 (induced by source paper "aida associative dnn inference accelerator"):
  with members:
    - "chipmunk a systolically scalable 0 9 mm 2 3 08 gop s mw 1 2 mw accelerator for near sensor recurrent neural network inference"
    - "sparse matrix multiplication on an associative processor"
    - "eie efficient inference engine on compressed deep neural network"
    - "convolutional networks for fast energy efficient neuromorphic computing"
    - "speech recognition with deep recurrent neural networks"

Connected through hyperedge HE-2 (induced by source paper "prins resistive cam processing in storage"):
  with members:
    - "sparse matrix multiplication on an associative processor"
    - "application driven near data processing for similarity search"
    - "performance evaluation of sparse matrix multiplication kernels on intel xeon phi"

Connected through hyperedge HE-3 (induced by source paper "sparse matrix multiplication on cam based accelerator"):
  with members:
    - "sparse matrix multiplication on an associative processor"
    - "performance evaluation of sparse matrix multiplication kernels on intel xeon phi"

Connected through hyperedge HE-4 (induced by source paper "the effect of temperature on amdahl law in 3d multicore era"):
  with members:
    - "cache hierarchy optimization"

Connected through hyperedge HE-5 (induced by source paper "sparse matrix multiplication on an associative processor"):
  with members:
    - "performance evaluation of sparse matrix multiplication kernels on intel xeon phi"

Connected through hyperedge HE-6 (induced by source paper "effect of data sharing on private cache design in chip multiprocessors"):
  with members:
    - "cache hierarchy optimization"

Connected through hyperedge HE-7 (induced by source paper "convex optimization of real time soc"):
  with members:
    - "cache hierarchy optimization"

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.AR(Hardware Architecture)