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Beyond Classical And Contemporary Models: A Transformative Ai Framework For Student Dropout Prediction In Distance Learning Using RAG, Prompt Engineering, And Cross-Modal Fusion

Date
Publisher
arXiv
Student dropout in distance learning remains a critical challenge, with profound societal and economic consequences. While classical machine learning models leverage structured socio-demographic and behavioral data, they often fail to capture the nuanced emotional and contextual factors embedded in unstructured student interactions. This paper introduces a transformative AI framework that redefines dropout prediction through three synergistic innovations: Retrieval-Augmented Generation (RAG) for domain-specific sentiment analysis, prompt engineering to decode academic stressors,and cross-modal attention fusion to dynamically align textual, behavioral, and socio-demographic insights. By grounding sentiment analysis in a curated knowledge base of pedagogical content, our RAG-enhanced BERT model interprets student comments with unprecedented contextual relevance, while optimized prompts isolate indicators of academic distress (e.g., "isolation," "workload anxiety"). A cross-modal attention layer then fuses these insights with temporal engagement patterns, creating holistic risk pro-files. Evaluated on a longitudinal dataset of 4 423 students, the framework achieves 89% accuracy and an F1-score of 0.88, outperforming conventional models by 7% and reducing false negatives by 21%. Beyond prediction, the system generates interpretable interventions by retrieving contextually aligned strategies (e.g., mentorship programs for isolated learners). This work bridges the gap between predictive analytics and actionable pedagogy, offering a scalable solution to mitigate dropout risks in global education systems
Study at a glance
  • Question: Can combining student text analysis with background data through AI better predict dropouts and provide clear explanations for tutors?
  • Setting and data: Higher education in Portugal, 4,423 students across multiple academic terms.
  • Method: Machine learning model evaluation with ablation study.
Why it matters

Distance education faces high student dropout rates, but existing early warning systems miss emotional signals in student text and produce opaque predictions that tutors find difficult to trust.

Key findings
  • The TRIAD-Drop model achieved 89% accuracy and an F1-score of 0.85, outperforming the strongest classical baseline by seven percentage points.
  • The model reduced false negatives by 21%, correcting errors largely among students expressing subtle academic distress that classical models missed.
  • In a pilot evaluation of alerts, tutors rated the system's generated rationales 4.6 out of 5 for clarity, and mentors accepted 62% of suggested matches.

Summary drafted with AI from the full paper and may contain errors. See the full paper for details.

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