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: "a generalization of the al method for fair allocation of indivisible objects"
  Abstract: We consider the assignment problem in which agents express ordinal preferences over $m$ objects and the objects are allocated to the agents based on the preferences. In a recent paper, Brams, Kilgour, and Klamler (2014) presented the AL method to compute an envy-free assignment for two agents. The AL method crucially depends on the assumption that agents have strict preferences over objects. We generalize the AL method to the case where agents may express indifferences and prove the axiomatic properties satisfied by the algorithm. As a result of the generalization, we also get a $O(m)$ speedup on previous algorithms to check whether a complete envy-free assignment exists or not. Finally, we show that unless P=NP, there can be no polynomial-time extension of GAL to the case of arbitrary number of agents.

Connected through hyperedge HE-1 (induced by source paper "almost envy freeness in group resource allocation"):
  with members:
    - "fairly allocating contiguous blocks of indivisible items"
    - "fairly allocating many goods with few queries"
    - "almost envy free allocations with connected bundles"
    - "fair division under cardinality constraints"
    - "almost envy freeness with general valuations"
    - "approximate maximin shares for groups of agents"
    - "democratic fair allocation of indivisible goods"
    - "assigning a small agreeable set of indivisible items to multiple players"

Connected through hyperedge HE-2 (induced by source paper "fair division with minimal sharing"):
  with members:
    - "competitive division of a mixed manna"
    - "competitive equilibria with indivisible goods and generic budgets"
    - "almost envy freeness with general valuations"
    - "online fair division analysing a food bank problem"
    - "truthful fair division"

Connected through hyperedge HE-3 (induced by source paper "waste makes haste bounded time algorithms for envy free cake cutting with free disposal"):
  with members:
    - "building fences straight and high an optimal algorithm for finding the maximum length you can cut k times from given sticks"
    - "a discrete and bounded envy free cake cutting protocol for any number of agents"
    - "envy free cake cutting in two dimensions"
    - "a discrete and bounded envy free cake cutting protocol for four agents"
    - "an algorithmic framework for strategic fair division"
    - "throw one s cake and have it too"

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.GT(Computer Science and Game Theory)