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: "toxic code snippets on stack overflow"
  Abstract: Online code clones are code fragments that are copied from software projects or online sources to Stack Overflow as examples. Due to an absence of a checking mechanism after the code has been copied to Stack Overflow, they can become toxic code snippets, e.g., they suffer from being outdated or violating the original software license. We present a study of online code clones on Stack Overflow and their toxicity by incorporating two developer surveys and a large-scale code clone detection. A survey of 201 high-reputation Stack Overflow answerers (33% response rate) showed that 131 participants (65%) have ever been notified of outdated code and 26 of them (20%) rarely or never fix the code. 138 answerers (69%) never check for licensing conflicts between their copied code snippets and Stack Overflow's CC BY-SA 3.0. A survey of 87 Stack Overflow visitors shows that they experienced several issues from Stack Overflow answers: mismatched solutions, outdated solutions, incorrect solutions, and buggy code. 85% of them are not aware of CC BY-SA 3.0 license enforced by Stack Overflow, and 66% never check for license conflicts when reusing code snippets. Our clone detection found online clone pairs between 72,365 Java code snippets on Stack Overflow and 111 open source projects in the curated Qualitas corpus. We analysed 2,289 non-trivial online clone candidates. Our investigation revealed strong evidence that 153 clones have been copied from a Qualitas project to Stack Overflow. We found 100 of them (66%) to be outdated, of which 10 were buggy and harmful for reuse. Furthermore, we found 214 code snippets that could potentially violate the license of their original software and appear 7,112 times in 2,427 GitHub projects.

Connected through hyperedge HE-1 (induced by source paper "puminer mining security posts from developer question and answer websites with pu learning"):
  with members:
    - "a look at the time delays in cvss vulnerability scoring"
    - "enhancing python compiler error messages via stack overflow"
    - "the impact of automated parameter optimization on defect prediction models"
    - "learning from positive and unlabeled data a survey"
    - "500 times faster than deep learning a case study exploring faster methods for text mining stackoverflow"
    - "predicting good configurations for github and stack overflow topic models"
    - "xgboost a scalable tree boosting system"
    - "distributed representations of sentences and documents"

Connected through hyperedge HE-2 (induced by source paper "stackemo towards enhancing user experience by augmenting stack overflow with emojis"):
  with members:
    - "analyzing and supporting adaptation of online code examples"
    - "gender differences in participation and reward on stack overflow"
    - "a gold standard for emotion annotation in stack overflow"

Connected through hyperedge HE-3 (induced by source paper "multi objective optimization for token based clone detection"):
  with members:
    - "stack overflow in github any snippets there"
    - "sourcerercc scaling code clone detection to big code"

Connected through hyperedge HE-4 (induced by source paper "an empirical study of c vulnerabilities in crowd sourced code examples"):
  with members:
    - "how reliable is the crowdsourced knowledge of security implementation"
    - "oreo detection of clones in the twilight zone"
    - "sotorrent reconstructing and analyzing the evolution of stack overflow posts"
    - "gistable evaluating the executability of python code snippets on github"
    - "sotorrent studying the origin evolution and usage of stack overflow code snippets"
    - "secure coding practices in java challenges and vulnerabilities"
    - "stack overflow considered harmful the impact of copy paste on android application security"
    - "leveraging flawed tutorials for seeding large scale web vulnerability discovery"

Connected through hyperedge HE-5 (induced by source paper "executability of python snippets in stack overflow"):
  with members:
    - "gistable evaluating the executability of python code snippets on github"
    - "sotorrent studying the origin evolution and usage of stack overflow code snippets"
    - "awareness and experience of developers to outdated and license violating code on stack overflow an online survey"
    - "stack overflow a code laundering platform"
    - "attribution required stack overflow code snippets in github projects"

Connected through hyperedge HE-6 (induced by source paper "enhancing python compiler error messages via stack overflow"):
  with members:
    - "automatically generating documentation for lambda expressions in java"
    - "nlp2code code snippet content assist via natural language tasks"

Connected through hyperedge HE-7 (induced by source paper "an empirical study of obsolete answers on stack overflow"):
  with members:
    - "want a good answer ask a good question first"

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.SE(Software Engineering)