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 structural approach to kernels for ilps treewidth and total unimodularity"
  Abstract: Kernelization is a theoretical formalization of efficient preprocessing for NP-hard problems. Empirically, preprocessing is highly successful in practice, for example in state-of-the-art ILP-solvers like CPLEX. Motivated by this, previous work studied the existence of kernelizations for ILP related problems, e.g., for testing feasibility of Ax <= b. In contrast to the observed success of CPLEX, however, the results were largely negative. Intuitively, practical instances have far more useful structure than the worst-case instances used to prove these lower bounds. #R##N#In the present paper, we study the effect that subsystems with (Gaifman graph of) bounded treewidth or totally unimodularity have on the kernelizability of the ILP feasibility problem. We show that, on the positive side, if these subsystems have a small number of variables on which they interact with the remaining instance, then we can efficiently replace them by smaller subsystems of size polynomial in the domain without changing feasibility. Thus, if large parts of an instance consist of such subsystems, then this yields a substantial size reduction. We complement this by proving that relaxations to the considered structures, e.g., larger boundaries of the subsystems, allow worst-case lower bounds against kernelization. Thus, these relaxed structures can be used to build instance families that cannot be efficiently reduced, by any approach.

Connected through hyperedge HE-1 (induced by source paper "parameterized algorithms for milps with small treedepth"):
  with members:
    - "a parameterized strongly polynomial algorithm for block structured integer programs"
    - "empowering the configuration ip new ptas results for scheduling with setups times"
    - "experimental evaluation of parameterized algorithms for graph separation problems half integral relaxations and matroid based kernelization"
    - "scheduling meets n fold integer programming"
    - "the complexity landscape of decompositional parameters for ilp"
    - "combinatorial n fold integer programming and applications"
    - "0 1 all csps half integral a path packing and linear time fpt algorithms"
    - "solving integer linear programs with a small number of global variables and constraints"

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"
    - "on the optimality of approximation schemes for the classical scheduling problem"
    - "on polynomial kernels for sparse integer linear programs"

Connected through hyperedge HE-3 (induced by source paper "a parameterized strongly polynomial algorithm for block structured integer programs"):
  with members:
    - "empowering the configuration ip new ptas results for scheduling with setups times"
    - "the complexity landscape of decompositional parameters for ilp"
    - "combinatorial n fold integer programming and applications"
    - "solving integer linear programs with a small number of global variables and constraints"
    - "a faster parameterized algorithm for treedepth"

Connected through hyperedge HE-4 (induced by source paper "the complexity landscape of decompositional parameters for ilp"):
  with members:
    - "structural parameterizations of the mixed chinese postman problem"
    - "backdoors to satisfaction"
    - "better algorithms for satisfiability problems for formulas of bounded rank width"

Connected through hyperedge HE-5 (induced by source paper "combinatorial n fold integer programming and applications"):
  with members:
    - "a parameterized strongly polynomial algorithm for block structured integer programs"
    - "on integer programming and convolution"
    - "scheduling meets n fold integer programming"
    - "the complexity landscape of decompositional parameters for ilp"
    - "proximity results and faster algorithms for integer programming using the steinitz lemma"
    - "simplified algorithmic metatheorems beyond mso treewidth and neighborhood diversity"
    - "voting and bribing in single exponential time"
    - "about the structure of the integer cone and its application to bin packing"

Connected through hyperedge HE-6 (induced by source paper "solving integer linear programs with a small number of global variables and constraints"):
  with members:
    - "a parameterized strongly polynomial algorithm for block structured integer programs"
    - "scheduling meets n fold integer programming"
    - "the complexity landscape of decompositional parameters for ilp"
    - "backdoors into heterogeneous classes of sat and csp"
    - "voting and bribing in single exponential time"
    - "on the computational complexity of vertex integrity and component order connectivity"
    - "backdoors to satisfaction"

Connected through hyperedge HE-7 (induced by source paper "lp branching algorithms based on biased graphs"):
  with members:
    - "the complexity landscape of decompositional parameters for ilp"
    - "on problems as hard as cnf sat"
    - "an approach to parameterized resiliency problems using integer linear programming"
    - "extension complexity mso logic and treewidth"
    - "parameterized integer quadratic programming variables and coefficients"
    - "half integrality lp branching and fpt algorithms"
    - "designing fpt algorithms for cut problems using randomized contractions"
    - "faster parameterized algorithms using linear programming"

Connected through hyperedge HE-8 (induced by source paper "parameterized resiliency problems via integer linear programming"):
  with members:
    - "combinatorial n fold integer programming and applications"
    - "a multivariate approach for checking resiliency in access control"
    - "an approach to parameterized resiliency problems using integer linear programming"
    - "the online disjoint set cover problem and its applications"
    - "parameterized integer quadratic programming variables and coefficients"
    - "polynomial kernels for weighted problems"
    - "the parameterized complexity of reasoning problems beyond np"
    - "a quasi polynomial time partition oracle for graphs with an excluded minor"

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)