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: "symbolic regression algorithms with built in linear regression"
  Abstract: Recently, several algorithms for symbolic regression (SR) emerged which employ a form of multiple linear regression (LR) to produce generalized linear models. The use of LR allows the algorithms to create models with relatively small error right from the beginning of the search; such algorithms are thus claimed to be (sometimes by orders of magnitude) faster than SR algorithms based on vanilla genetic programming. However, a systematic comparison of these algorithms on a common set of problems is still missing. In this paper we conceptually and experimentally compare several representatives of such algorithms (GPTIPS, FFX, and EFS). They are applied as off-the-shelf, ready-to-use techniques, mostly using their default settings. The methods are compared on several synthetic and real-world SR benchmark problems. Their performance is also related to the performance of three conventional machine learning algorithms --- multiple regression, random forests and support vector regression.

Connected through hyperedge HE-1 (induced by source paper "improving model based genetic programming for symbolic regression of small expressions"):
  with members:
    - "where are we now a large benchmark study of recent symbolic regression methods"
    - "solving the exponential growth of symbolic regression trees in geometric semantic genetic programming"
    - "a probabilistic linear genetic programming with stochastic context free grammar for solving symbolic regression problems"
    - "xgboost a scalable tree boosting system"
    - "the mythos of model interpretability"
    - "optimization by pairwise linkage detection incremental linkage set and restricted back mixing dsmga ii"
    - "avoiding the bloat with stochastic grammar based genetic programming"

Connected through hyperedge HE-2 (induced by source paper "where are we now a large benchmark study of recent symbolic regression methods"):
  with members:
    - "pmlb a large benchmark suite for machine learning evaluation and comparison"
    - "xgboost a scalable tree boosting system"
    - "epsilon lexicase selection for regression"
    - "adam a method for stochastic optimization"
    - "openml networked science in machine learning"

Connected through hyperedge HE-3 (induced by source paper "ensemble representation learning an analysis of fitness and survival for wrapper based genetic programming methods"):
  with members:
    - "epsilon lexicase selection for regression"
    - "variable selection is hard"
    - "representation learning a review and new perspectives"

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.LG(Machine Learning)