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 complexity landscape of decompositional parameters for ilp"
  Abstract: Integer Linear Programming (ILP) can be seen as the archetypical problem for NP-complete optimization problems, and a wide range of problems in artificial intelligence are solved in practice via a translation to ILP. Despite its huge range of applications, only few tractable fragments of ILP are known, probably the most prominent of which is based on the notion of total unimodularity. Using entirely different techniques, we identify new tractable fragments of ILP by studying structural parameterizations of the constraint matrix within the framework of parameterized complexity. #R##N#In particular, we show that ILP is fixed-parameter tractable when parameterized by the treedepth of the constraint matrix and the maximum absolute value of any coefficient occurring in the ILP instance. Together with matching hardness results for the more general parameter treewidth, we give an overview of the complexity of ILP w.r.t. decompositional parameters defined on the constraint matrix.

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"
    - "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"
    - "voting and bribing in single exponential time"

Connected through hyperedge HE-2 (induced by source paper "sat encodings for treecut width and treedepth"):
  with members:
    - "a parameterized strongly polynomial algorithm for block structured integer programs"
    - "on the power of tree depth for fully polynomial fpt algorithms"
    - "solving and verifying the boolean pythagorean triples problem via cube and conquer"
    - "kernelizing mso properties of trees of fixed height and some consequences"
    - "a faster parameterized algorithm for treedepth"
    - "structural parameterizations of the mixed chinese postman problem"
    - "computing tree depth faster than 2 n"
    - "where first order and monadic second order logic coincide"

Connected through hyperedge HE-3 (induced by source paper "positive instance driven dynamic programming for graph searching"):
  with members:
    - "a parameterized strongly polynomial algorithm for block structured integer programs"
    - "faster algorithms for integer programs with block structure"
    - "practical access to dynamic programming on tree decompositions"
    - "small resolution proofs for qbf using dependency treewidth"
    - "positive instance driven dynamic programming for treewidth"
    - "a differential approach to inference in bayesian networks"
    - "courcelle s theorem a game theoretic approach"

Connected through hyperedge HE-4 (induced by source paper "a row invariant parameterized algorithm for integer programming"):
  with members:
    - "a parameterized strongly polynomial algorithm for block structured integer programs"
    - "faster algorithms for integer programs with block structure"
    - "solving integer linear programs with a small number of global variables and constraints"
    - "voting and bribing in single exponential time"
    - "on the optimality of pseudo polynomial algorithms for integer programming"

Connected through hyperedge HE-5 (induced by source paper "parameterized algorithms for book embedding problems"):
  with members:
    - "parameterized complexity of 1 planarity"
    - "crossing minimization for 1 page and 2 page drawings of graphs with bounded treewidth"
    - "two page book embeddings of 4 planar graphs"

Connected through hyperedge HE-6 (induced by source paper "new bounds on augmenting steps of block structured integer programs"):
  with members:
    - "a parameterized strongly polynomial algorithm for block structured integer programs"
    - "faster algorithms for integer programs with block structure"
    - "empowering the configuration ip new ptas results for scheduling with setups times"
    - "on integer programming and convolution"
    - "scheduling meets n fold integer programming"
    - "evaluating and tuning n fold integer programming"
    - "combinatorial n fold integer programming and applications"
    - "proximity results and faster algorithms for integer programming using the steinitz lemma"

Connected through hyperedge HE-7 (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"
    - "combinatorial n fold integer programming and applications"
    - "solving integer linear programs with a small number of global variables and constraints"
    - "a structural approach to kernels for ilps treewidth and total unimodularity"
    - "a faster parameterized algorithm for treedepth"

Connected through hyperedge HE-8 (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"
    - "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"
    - "parameterized integer quadratic programming variables and coefficients"

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.DS(Data Structures and Algorithms)