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: "redes sociales participacion ciudadana y la hipotesis del slacktivismo lecciones del caso de el bronco social media civic engagement and the slacktivism hypothesis lessons from mexico s el bronco"
  Abstract: El uso de las redes sociales tiene consecuencias positivas o negativas en la participaci\'on ciudadana? La gran parte de los intentos por responder a esta pregunta incluyen datos de la opini\'on p\'ublica de los Estados Unidos, por lo que nosotros ofrecemos un estudio sobre un caso significativo de M\'exico, donde un candidato independiente utiliz\'o las redes sociales para comunicarse con el p\'ublico y rehuy\'o de los medios de comunicaci\'on tradicionales. Dicho candidato, conocido como "El Bronco", gan\'o la carrera por la gubernatura del estado al derrotar a los candidatos de los partidos tradicionales. Adem\'as, gener\'o una participaci\'on ciudadana que se ha mantenido m\'as all\'a del d\'ia de las elecciones. En nuestra investigaci\'on analizamos m\'as de 750 mil mensajes, comentarios y respuestas durante m\'as de tres a\~nos de interacciones en la p\'agina p\'ublica de Facebook de "El Bronco". Examinamos y demostramos que las redes sociales pueden utilizarse para dar cabida a una gran cantidad de interacciones ciudadanas sobre la vida p\'ublica m\'as all\'a de un acontecimiento pol\'itico. #R##N#Does social media use have a positive or negative impact on civic engagement? The "slacktivism hypothesis" holds that if citizens use social media for political conversation, those conversations will be fleeting and vapid. Most attempts to answer this question involve public opinion data from the United States, so we offer an examination of an important case from Mexico, where an independent candidate used social media to communicate with the public and eschewed traditional media outlets. He won the race for state governor, defeating candidates from traditional parties and triggering sustained public engagement beyond election day. In our investigation, we analyze over 750,000 posts, comments, and replies over three years of conversations on the Facebook page of "El Bronco".

Connected through hyperedge HE-1 (induced by source paper "crowd coach peer coaching for crowd workers skill growth"):
  with members:
    - "exploring blockchain for trustful collaborations between immigrants and governments"
    - "is there anything else i can help you with challenges in deploying an on demand crowd powered conversational agent"
    - "crowd guilds worker led reputation and feedback on crowdsourcing platforms"
    - "a data driven analysis of workers earnings on amazon mechanical turk"
    - "parlai a dialog research software platform"
    - "botivist calling volunteers to action using online bots"
    - "atelier repurposing expert crowdsourcing tasks as micro internships"

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.SI(Social and Information Networks)