This survey article presents a comprehensive classification of learner-centered networks and models for analyzing interactions and collaboration among learners. The article provides essential attributes that constitute an interaction, such as multi-path relationships between nodes. Different types of networks, including ego networks, duocentric networks, triadic networks, and scale-free networks, are described. The article compares various interaction models to determine which models perform better in different cases, considering assumptions of distinguishability, homophily, network closure, bidirectional influence, transitivity, and centrality. The article also introduces the learner network interaction hierarchy, which characterizes the various interaction modeling forms in learner-centered social networks. Researchers interested in modeling collaboration and interaction among learners in group projects will benefit from this framework, as it can aid students, instructors, and curriculum developers in gaining insights into the evolution of activities during learning events.
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