Answer the following questions. Please ensure to use the Author, YYYY APA citations with any content brought into the assignment.
- What are Anomalies/Outliers? And what are some variants of Anomaly/Outlier Detection Problems?
- What are some Challenges and Work Assumptions of Anomaly Detection?
- Explain the Nearest-Neighbor Based Approach and the different ways to Define Outliers.
- Explain the Density-based: LOF Approach.
- Provide the General Steps and Types of Anomaly Detection Schemes.