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: "new millennium ai and the convergence of history"
  Abstract: Artificial Intelligence (AI) has recently become a real formal science: the new millennium brought the first mathematically sound, asymptotically optimal, universal problem solvers, providing a new, rigorous foundation for the previously largely heuristic field of General AI and embedded agents. At the same time there has been rapid progress in practical methods for learning true sequence-processing programs, as opposed to traditional methods limited to stationary pattern association. Here we will briefly review some of the new results, and speculate about future developments, pointing out that the time intervals between the most notable events in over 40,000 years or 2^9 lifetimes of human history have sped up exponentially, apparently converging to zero within the next few decades. Or is this impression just a by-product of the way humans allocate memory space to past events?

Connected through hyperedge HE-1 (induced by source paper "can intelligence explode"):
  with members:
    - "one decade of universal artificial intelligence"
    - "a philosophical treatise of universal induction"
    - "a complete theory of everything will be subjective"
    - "a monte carlo aixi approximation"
    - "a collection of definitions of intelligence"
    - "simple algorithmic principles of discovery subjective beauty selective attention curiosity creativity"
    - "universal intelligence a definition of machine intelligence"

Connected through hyperedge HE-2 (induced by source paper "self delimiting neural networks"):
  with members:
    - "multi column deep neural networks for image classification"
    - "powerplay training an increasingly general problem solver by continually searching for the simplest still unsolvable problem"
    - "optimal ordered problem solver"
    - "reinforcement learning a survey"

Connected through hyperedge HE-3 (induced by source paper "driven by compression progress a simple principle explains essential aspects of subjective beauty novelty surprise interestingness attention curiosity creativity art science music jokes"):
  with members:
    - "2006 celebrating 75 years of ai history and outlook the next 25 years"
    - "simple algorithmic principles of discovery subjective beauty selective attention curiosity creativity"
    - "the new ai general sound relevant for physics"
    - "goedel machines self referential universal problem solvers making provably optimal self improvements"
    - "optimal ordered problem solver"
    - "reinforcement learning a survey"

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.AI(Artificial Intelligence)