There are several techniques that can be used to handle imbalanced data in machine learning. Some common techniques include:

1. Resampling: This involves either oversampling the minority class, undersampling the majority class, or a combination of both to create a more balanced dataset.

2. Synthetic data generation: Techniques such as SMOTE (Synthetic Minority Over-sampling Technique) can be used to generate synthetic data points for the minority class to balance the dataset.

3. Cost-sensitive learning: Adjusting the misclassification costs during the training of the model to give more weight to the minority class can help address imbalanced data.

4. Ensemble methods: Using ensemble methods like bagging, boosting, or stacking can help improve the predictive performance on imbalanced datasets.

5. Anomaly detection: Identifying and treating the minority class as anomalies can help in addressing imbalanced data.

6. Using different evaluation metrics: Instead of using accuracy as the evaluation metric, other metrics such as precision, recall, F1-score, or area under the ROC curve (AUC-ROC) can be more informative when dealing with imbalanced datasets.

These techniques can be used individually or in combination to handle imbalanced data and improve the performance of machine learning models.