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: "bidirectional collision detection and faster deterministic isomorphism testing"
  Abstract: In this work, we introduce bidirectional collision detection --- a new algorithmic tool that applies to the collision problems that arise in many isomorphism problems. For the group isomorphism problem, we show that bidirectional collision detection yields a deterministic n^((1 / 2) log n + O(1)) time algorithm whereas previously the n^(log n + O(1)) generator-enumeration algorithm was the best result for several decades. For the hard special case of solvable groups, we combine bidirectional collision detection with methods from the author's previous work to obtain a deterministic square-root speedup over the best previous algorithm. We also show a deterministic square-root speedup over the best previous algorithm for testing isomorphism of rings. We can even apply bidirectional collision detection to the graph isomorphism problem to obtain a deterministic T^(1 / sqrt(2)) speedup over the best previous deterministic algorithm. Although the space requirements for our algorithms are greater than those for previous deterministic isomorphism tests, we show time-space tradeoffs that interpolate between the resource requirements of our algorithms and previous work.

Connected through hyperedge HE-1 (induced by source paper "isomorphism problems for tensors groups and cubic forms completeness and reductions"):
  with members:
    - "general linear group action on tensors a candidate for post quantum cryptography"
    - "incorporating weisfeiler leman into algorithms for group isomorphism"
    - "algorithms based on algebras and their applications to isomorphism of polynomials with one secret group isomorphism and polynomial identity testing"
    - "graph isomorphism in quasipolynomial time"
    - "algorithms for group isomorphism via group extensions and cohomology"
    - "practical graph isomorphism ii"
    - "breaking the n log n barrier for solvable group isomorphism"
    - "complexity classes of equivalence problems revisited"

Connected through hyperedge HE-2 (induced by source paper "incorporating weisfeiler leman into algorithms for group isomorphism"):
  with members:
    - "on weisfeiler leman invariance subgraph counts and related graph properties"
    - "on the group and color isomorphism problems"
    - "graph isomorphism in quasipolynomial time"
    - "beating the generator enumeration bound for p group isomorphism"

Connected through hyperedge HE-3 (induced by source paper "linear algebraic analogues of the graph isomorphism problem and the erd h o s r enyi model"):
  with members:
    - "algorithms based on algebras and their applications to isomorphism of polynomials with one secret group isomorphism and polynomial identity testing"
    - "on the group and color isomorphism problems"
    - "graph isomorphism in quasipolynomial time"
    - "a deterministic polynomial time algorithm for non commutative rational identity testing"
    - "non commutative edmonds problem and matrix semi invariants"
    - "practical graph isomorphism ii"
    - "deterministic polynomial time algorithms for matrix completion problems"

Connected through hyperedge HE-4 (induced by source paper "on the group and color isomorphism problems"):
  with members:
    - "polynomial time isomorphism test of groups that are tame extensions"
    - "algorithms for group isomorphism via group extensions and cohomology"
    - "efficient isomorphism testing for a class of group extensions"

Connected through hyperedge HE-5 (induced by source paper "polynomial time isomorphism test of groups that are tame extensions"):
  with members:
    - "algorithms for group isomorphism via group extensions and cohomology"
    - "lie algebra conjugacy"
    - "deterministic polynomial time algorithms for matrix completion problems"
    - "efficient isomorphism testing for a class of group extensions"

Connected through hyperedge HE-6 (induced by source paper "group isomorphism with fixed subnormal chains"):
  with members:
    - "beating the generator enumeration bound for p group isomorphism"
    - "breaking the n log n barrier for solvable group isomorphism"

Connected through hyperedge HE-7 (induced by source paper "beating the generator enumeration bound for p group isomorphism"):
  with members:
    - "beating the generator enumeration bound for solvable group isomorphism"
    - "algorithms for group isomorphism via group extensions and cohomology"
    - "breaking the n log n barrier for solvable group isomorphism"
    - "efficient isomorphism testing for a class of group extensions"

Connected through hyperedge HE-8 (induced by source paper "algorithms for group isomorphism via group extensions and cohomology"):
  with members:
    - "complexity classes of equivalence problems revisited"
    - "lie algebra conjugacy"
    - "deterministic polynomial time algorithms for matrix completion problems"
    - "efficient isomorphism testing for a class of group extensions"

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)