Dropout Prediction System Based on Machine Learning and Artificial Neural Networks: Multi-Model Comparison and Automatic Optimization

This article introduces a modular machine learning project that integrates three algorithms—Support Vector Machine (SVM), Random Forest, and Artificial Neural Network (ANN). By automatically selecting the optimal model to predict student dropout risk, it provides precise data support for educational decision-making and addresses the limitations of traditional early warning methods that rely on experience and simple indicators.

Student dropout is a major challenge in global education systems. Early identification of at-risk students is crucial for timely intervention. Traditional early warning methods rely on teachers' experience and simple academic indicators, making it difficult to capture complex multi-factor interactions. The development of machine learning technology provides education managers with more precise and objective risk assessment tools.

The project adopts a modular design, with the core goal of building a scalable and maintainable dropout prediction system that integrates three mainstream algorithms: Support Vector Machine (SVM), Random Forest, and Artificial Neural Network (ANN). SVM excels at classification in high-dimensional spaces, making it suitable for high-dimensional educational data; Random Forest integrates multiple decision trees to reduce overfitting and provide feature importance evaluation; ANN can capture nonlinear relationships and complex patterns, making it suitable for modeling the interaction effects of educational factors.

The effectiveness of the dropout prediction model depends on the quality and relevance of input data. The educational dataset includes multi-dimensional features such as demographic information, academic performance, attendance records, behavioral performance, and family background. Data preprocessing includes missing value handling, outlier detection, feature standardization, and category encoding. Feature engineering needs to combine educational expertise to capture implicit risk signals, such as the downward trend of attendance rate, the amplitude of academic performance fluctuations, and the interaction effects between family socioeconomic indicators and school resources.

The core highlight of the project is the automatic model selection mechanism. During the training phase, the three algorithms undergo parameter tuning and cross-validation on the same training set, with evaluation metrics including accuracy, precision, recall, F1 score, and AUC-ROC curve. The automatic optimization logic is based on performance standards and business requirements—for example, in educational scenarios, high recall (reducing missed reports) is prioritized. The system automatically outputs the optimal model configuration without manual intervention.

The application value of the prediction system is reflected in multiple aspects: school managers can obtain a risk overview and allocate counseling resources rationally; homeroom teachers and subject teachers can identify key students to focus on and support personalized interventions; policy makers can reveal systemic risk factors through feature importance analysis to provide a basis for macro policy adjustments. The interpretable output of the model (such as the feature importance ranking of Random Forest) enhances educators' trust in algorithmic recommendations, which is key to the implementation of machine learning in the education field.

This project demonstrates a typical application paradigm of machine learning in educational technology: multi-model comparison, automatic optimization, and modular architecture, which can be migrated to scenarios such as academic performance prediction and course recommendation. Future directions include introducing Transformer-based models to process time-series behavioral data, integrating multi-source heterogeneous data (online learning platforms, mental health assessments), and building real-time early warning systems to continuously improve model accuracy and practicality, and achieve precise care and timely support for students.