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: "on the optimality of approximation schemes for the classical scheduling problem"
  Abstract: We consider the classical scheduling problem on parallel identical machines to minimize the makespan, and achieve the following results under the Exponential Time Hypothesis (ETH) #R##N#1. The scheduling problem on a constant number $m$ of identical machines, which is denoted as $Pm||C_{max}$, is known to admit a fully polynomial time approximation scheme (FPTAS) of running time $O(n) + (1/\epsilon)^{O(m)}$ (indeed, the algorithm works for an even more general problem where machines are unrelated). We prove this algorithm is essentially the best possible in the sense that a $(1/\epsilon)^{O(m^{1-\delta})}+n^{O(1)}$ time FPTAS for any $\delta>0$ implies that ETH fails. #R##N#2. The scheduling problem on an arbitrary number of identical machines, which is denoted as $P||C_{max}$, is known to admit a polynomial time approximation scheme (PTAS) of running time $2^{O(1/\epsilon^2\log^3(1/\epsilon))}+n^{O(1)}$. We prove this algorithm is nearly optimal in the sense that a $2^{O((1/\epsilon)^{1-\delta})}+n^{O(1)}$ time PTAS for any $\delta>0$ implies that ETH fails, leaving a small room for improvement. #R##N#To obtain these results we will provide two new reductions from 3SAT, one for $Pm||C_{max}$ and another for $P||C_{max}$. Indeed, the new reductions explore the structure of scheduling problems and can also lead to other interesting results. For example, using the framework of our reduction for $P||C_{max}$, Chen et al. (arXiv:1306.3727) is able to prove the APX-hardness of the scheduling problem in which the matrix of job processing times $P=(p_{ij})_{m\times n}$ is of rank 3, solving the open problem mentioned by Bhaskara et al. (SODA 2013).

Connected through hyperedge HE-1 (induced by source paper "streaming algorithms for bin packing and vector scheduling"):
  with members:
    - "tight lower bound for comparison based quantile summaries"
    - "a new and improved algorithm for online bin packing"
    - "fully dynamic bin packing with limited repacking"
    - "optimal quantile approximation in streams"
    - "closing the gap for makespan scheduling via sparsification techniques"
    - "a logarithmic additive integrality gap for bin packing"
    - "tight bounds for online vector scheduling"
    - "polynomiality for bin packing with a constant number of item types"

Connected through hyperedge HE-2 (induced by source paper "covering a tree with rooted subtrees"):
  with members:
    - "scheduling meets n fold integer programming"
    - "closing the gap for makespan scheduling via sparsification techniques"
    - "a structural approach to kernels for ilps treewidth and total unimodularity"
    - "on polynomial kernels for sparse integer linear programs"

Connected through hyperedge HE-3 (induced by source paper "an eptas for scheduling on unrelated machines of few different types"):
  with members:
    - "a unified framework for designing eptas s for load balancing on parallel machines"
    - "scheduling meets n fold integer programming"
    - "closing the gap for makespan scheduling via sparsification techniques"
    - "on allocating goods to maximize fairness"

Connected through hyperedge HE-4 (induced by source paper "closing the gap for makespan scheduling via sparsification techniques"):
  with members:
    - "polynomiality for bin packing with a constant number of item types"

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.CC(Computational Complexity)