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: "quantized indexing beyond arithmetic coding"
  Abstract: Summary form only given. Quantized indexing (QI) is a fast and space-efficient form of enumerative (combinatorial) coding (EC). The arithmetic precision, execution time, table sizes and coding delay of EC are all reduced by a factor O(n) at a redundancy below log(e)/2/sup g-1/bits/symbol (for n input symbols and a g-bit QI precision). Due to its tighter enumeration, QI redundancy is below that of arithmetic coding (AC). The relative compression gains increase for shorter outputs and for less predictable data. Simultaneously, QI is significantly faster than the fastest arithmetic coders, from factor 6 in high to over 200 in low entropy limit ('typically' 10 to 20 times faster). These speedups are the result of using no coding operations on more probable symbol, fewer and simpler operations on less probable symbol and intrinsically cleaner division of labor between the coder and modeler.

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.IT(Information Theory)