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: "assembling sequences of dna using an on line algorithm based on debruijn graphs"
  Abstract: The problem of assembling DNA fragments starting from imperfect strings given by a sequencer, classified as NP hard when trying to get perfect answers, has a huge importance in several fields, because of its relation with the possibility of detecting similarities between animals, dangerous pests in crops, and so on. Some of the algorithms and data structures that have been created to solve this problem are Needleman Wunsch algorithm, DeBruijn graphs and greedy algorithms working on overlaps graphs; these try to work out the problem from different approaches that give place to certain advantages and disadvantages to be discussed. #R##N#In this article we first expose a summary of the research done on already created solutions for the DNA assembly problem, to present later an on-line solution to the same matter, which, despite not considering mutations, would have the capacity of using only the necessary amount of readings to assemble an user specified amount of genes.

Connected through hyperedge HE-1 (induced by source paper "a general overview of formal languages for individual based modelling of ecosystems"):
  with members:
    - "process ordering in a process calculus for spatially explicit ecological models"
    - "current trends and future research directions for interactive music"
    - "probabilistic extension to the concurrent constraint factor oracle model for music improvisation"
    - "mela modelling in ecology with location attributes"
    - "mean field semantics for a process calculus for spatially explicit ecological models"
    - "a model for interactive scores with temporal constraints and conditional branching"
    - "structured interactive music scores"
    - "a spatial calculus of wrapped compartments"

Connected through hyperedge HE-2 (induced by source paper "current trends and future research directions for interactive music"):
  with members:
    - "process ordering in a process calculus for spatially explicit ecological models"
    - "towards a correct and efficient implementation of simulation and verification tools for probabilistic ntcc"
    - "on line assembling mitochondrial dna from de novo transcriptome"
    - "mean field semantics for a process calculus for spatially explicit ecological models"
    - "a model for interactive scores with temporal constraints and conditional branching"
    - "structured interactive music scores"
    - "an extension of interactive scores for multimedia scenarios with temporal relations for micro and macro controls"

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)