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: "a hybrid aco algorithm for the next release problem"
  Abstract: In this paper, we propose a Hybrid Ant Colony Optimization algorithm (HACO) for Next Release Problem (NRP). NRP, a NP-hard problem in requirement engineering, is to balance customer requests, resource constraints, and requirement dependencies by requirement selection. Inspired by the successes of Ant Colony Optimization algorithms (ACO) for solving NP-hard problems, we design our HACO to approximately solve NRP. Similar to traditional ACO algorithms, multiple artificial ants are employed to construct new solutions. During the solution construction phase, both pheromone trails and neighborhood information will be taken to determine the choices of every ant. In addition, a local search (first found hill climbing) is incorporated into HACO to improve the solution quality. Extensively wide experiments on typical NRP test instances show that HACO outperforms the existing algorithms (GRASP and simulated annealing) in terms of both solution uality and running time.

Connected through hyperedge HE-1 (induced by source paper "a fuzzy based optimization method for integrating value dependencies into software requirement selection"):
  with members:
    - "dependency aware release planning for software projects using fuzzy graphs and integer programming"
    - "a study on the prevalence of human values in software engineering publications 2015 2018"
    - "modeling and selection of interdependent software requirements using fuzzy graphs"
    - "solving the large scale next release problem with a backbone based multilevel algorithm"
    - "dependency aware software release planning through mining user preferences"
    - "graded causation and defaults"

Connected through hyperedge HE-2 (induced by source paper "dependency aware software requirements selection using fuzzy graphs and integer programming"):
  with members:
    - "a study on the prevalence of human values in software engineering publications 2015 2018"
    - "solving the large scale next release problem with a backbone based multilevel algorithm"
    - "from observational studies to causal rule mining"
    - "graded causation and defaults"

Connected through hyperedge HE-3 (induced by source paper "dependency aware software release planning through mining user preferences"):
  with members:
    - "modeling and selection of interdependent software requirements using fuzzy graphs"
    - "solving the large scale next release problem with a backbone based multilevel algorithm"
    - "graded causation and defaults"

Connected through hyperedge HE-4 (induced by source paper "solving the large scale next release problem with a backbone based multilevel algorithm"):
  with members:
    - "approximate backbone based multilevel algorithm for next release problem"

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.NE(Neural and Evolutionary Computing)