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: "dense testers almost linear time and locally explicit constructions"
  Abstract: We develop a new notion called $(1-\epsilon)$-tester for a set $M$ of functions $f:A\to C$. A $(1-\epsilon)$-tester for $M$ maps each element $a\in A$ to a finite number of elements $B_a=\{b_1,\ldots,b_t\}\subset B$ in a smaller sub-domain $B\subset A$ where for every $f\in M$ if $f(a)\not=0$ then $f(b)\not=0$ for at least $(1-\epsilon)$ fraction of the elements $b$ of $B_a$. I.e., if $f(a)\not=0$ then $\Pr_{b\in B_a}[f(b)\not=0]\ge 1-\epsilon$. The {\it size} of the $(1-\epsilon)$-tester is $\max_{a\in A}|B_a|$ and the goal is to minimize this size, construct $B_a$ in deterministic almost linear time and access and compute each map in poly-log time. #R##N#We use tools from elementary algebra and algebraic function fields to build $(1-\epsilon)$-testers of small size in deterministic almost linear time. We also show that our constructions are locally explicit, i.e., one can find any entry in the construction in time poly-log in the size of the construction and the field size. We also prove lower bounds that show that the sizes of our testers and the densities are almost optimal. #R##N#Testers were used in [Bshouty, Testers and its application, ITCS 2014] to construct almost optimal perfect hash families, universal sets, cover-free families, separating hash functions, black box identity testing and hitting sets. The dense testers in this paper shows that such constructions can be done in almost linear time, are locally explicit and can be made to be dense.

Connected through hyperedge HE-1 (induced by source paper "enumerating all the irreducible polynomials over finite field"):
  with members:
    - "efficient ranking of lyndon words and decoding lexicographically minimal de bruijn sequence"
    - "ranking and unranking of hereditarily finite functions and permutations"

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.DM(Discrete Mathematics)