human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "analyzing and characterizing political discussions in whatsapp public groups"):
  Abstract: We present a thorough characterization of what we believe to be the first significant analysis of the behavior of groups in WhatsApp in the scientific literature. Our characterization of over 270,000 messages and about 7,000 users spanning a 28-day period is done at three different layers. The message layer focuses on individual messages, each of which is the result of specific posts performed by a user. The user layer characterizes the user actions while interacting with a group. The group layer characterizes the aggregate message patterns of all users that participate in a group. We analyze 81 public groups in WhatsApp and classify them into two categories, political and non-political groups according to keywords associated with each group. Our contributions are two-fold. First, we introduce a framework and a number of metrics to characterize the behavior of communication groups in mobile messaging systems such as WhatsApp. Second, our analysis underscores a Zipf-like profile for user messages in political groups. Also, our analysis reveals that Whatsapp messages are multimedia, with a combination of different forms of content. Multimedia content (i.e., audio, image, and video) and emojis are present in 20% and 11.2% of all messages respectively. Political groups use more text messages than non-political groups. Second, we characterize novel features that represent the behavior of a public group, with multiple conversational turns between key members, with the participation of other members of the group.

Includes members:
  Member "forensic analysis of instant messenger applications on android devices":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "forensics analysis of android mobile voip apps")
  Member "understanding the characteristics of internet short video sharing youtube as a case study":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "producers of popular science web videos between new professionalism and old gender issues")

Question: Please tell me which class the source paper 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)