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: "the metric ff planning system translating ignoring delete lists to numeric state variables"
  Abstract: Planning with numeric state variables has been a challenge for many years, and was a part of the 3rd International Planning Competition (IPC-3). Currently one of the most popular and successful algorithmic techniques in STRIPS planning is to guide search by a heuristic function, where the heuristic is based on relaxing the planning task by ignoring the delete lists of the available actions.#R##N##R##N#We present a natural extension of "ignoring delete lists" to numeric state variables, preserving the relevant theoretical properties of the STRIPS relaxation under the condition that the numeric task at hand is "monotonic". We then identify a subset of the numeric IPC-3 competition language, "linear tasks", where monotonicity can be achieved by pre-processing. Based on that, we extend the algorithms used in the heuristic planning system FF to linear tasks. The resulting system Metric-FF is, according to the IPC-3 results which we discuss, one of the two currently most efficient numeric planners.

Connected through hyperedge HE-1 (induced by source paper "what should i do now marrying reinforcement learning and symbolic planning"):
  with members:
    - "hyp despot a hybrid parallel algorithm for online planning under uncertainty"
    - "fusion volumetric object level slam"
    - "gibson env real world perception for embodied agents"
    - "chalet cornell house agent learning environment"
    - "on evaluation of embodied navigation agents"
    - "building generalizable agents with a realistic and rich 3d environment"
    - "shifting the baseline single modality performance on visual navigation qa"
    - "neural modular control for embodied question answering"

Connected through hyperedge HE-2 (induced by source paper "stripstream integrating symbolic planners and blackbox samplers"):
  with members:
    - "sampling based methods for factored task and motion planning"
    - "modelling mixed discrete continuous domains for planning"
    - "the fast downward planning system"
    - "pddl2 1 an extension to pddl for expressing temporal planning domains"
    - "the 3rd international planning competition results and analysis"

Connected through hyperedge HE-3 (induced by source paper "strips planning in infinite domains"):
  with members:
    - "ffrob leveraging symbolic planning for efficient task and motion planning"
    - "a unifying formalism for shortest path problems with expensive edge evaluations via lazy best first search over paths with edge selectors"
    - "modelling mixed discrete continuous domains for planning"
    - "the fast downward planning system"
    - "pddl2 1 an extension to pddl for expressing temporal planning domains"

Connected through hyperedge HE-4 (induced by source paper "evaluating the quality of tourist agendas customized to different travel styles"):
  with members:
    - "pddl2 1 an extension to pddl for expressing temporal planning domains"

Connected through hyperedge HE-5 (induced by source paper "a hybrid lp rpg heuristic for modelling numeric resource flows in planning"):
  with members:
    - "colin planning with continuous linear numeric change"
    - "the lama planner guiding cost based anytime planning with landmarks"
    - "loosely coupled formulations for automated planning an integer programming perspective"
    - "an approach to temporal planning and scheduling in domains with predictable exogenous events"
    - "the deterministic part of ipc 4 an overview"
    - "ordered landmarks in planning"
    - "sapa a multi objective metric temporal planner"
    - "taming numbers and durations in the model checking integrated planning system"

Connected through hyperedge HE-6 (induced by source paper "pomdps make better hackers accounting for uncertainty in penetration testing"):
  with members:
    - "penetration testing pomdp solving"
    - "attack planning in the real world"
    - "policy contingent abstraction for robust robot control"
    - "an algorithm to find optimal attack paths in nondeterministic scenarios"

Connected through hyperedge HE-7 (induced by source paper "les pomdp font de meilleurs hackers tenir compte de l incertitude dans les tests de penetration"):
  with members:
    - "penetration testing pomdp solving"
    - "attack planning in the real world"
    - "policy contingent abstraction for robust robot control"
    - "an algorithm to find optimal attack paths in nondeterministic scenarios"

Connected through hyperedge HE-8 (induced by source paper "strategic planning for network data analysis"):
  with members:
    - "pddl2 1 an extension to pddl for expressing temporal planning domains"

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)