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: "lempel ziv a one bit catastrophe but not a tragedy"
  Abstract: The so-called "one-bit catastrophe" for the compression algorithm LZ'78 asks whether the compression ratio of an infinite word can change when a single bit is added in front of it. We answer positively this open question raised by Lutz and others: we show that there exists an infinite word $w$ such that $\rho_{sup}(w)=0$ but $\rho_{inf}(0w)>0$, where $\rho_{sup}$ and $\rho_{inf}$ are respectively the $\limsup$ and the $\liminf$ of the compression ratios $\rho$ of the prefixes. To that purpose we explore the behaviour of LZ'78 on finite words and show the following results: #R##N#- There is a constant $C>0$ such that, for any finite word $w$ and any letter $a$, $\rho(aw)\leq C\sqrt{\rho(w)\log|w|}$. Thus, sufficiently compressible words ($\rho(w)=o(1/\log|w|)$) remain compressible with a letter in front; #R##N#- The previous result is tight up to a multiplicative constant for any compression ratio $\rho(w)=O(1/\log|w|)$. In particular, there are infinitely many words $w$ satisfying $\rho(w)=O(1/\log|w|)$ but $\rho(0w)=\Omega(1)$.

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)