6. Data Exploration
Data Exploration is a crucial process in AI and Data Science that helps uncover insights from raw, often unstructured data. It involves identifying patterns, handling missing values, visualizing data, and understanding relationships between variables while ensuring ethical standards are maintained. Key techniques include statistical summaries and various visualization tools to aid comprehension.
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What we have learnt
- Data Exploration is essential for understanding datasets and making informed decisions.
- Key techniques include handling missing values and detecting patterns through visualization.
- Correlation does not imply causation, highlighting the need for careful interpretation of data relationships.
- Ethics in data handling is vital, ensuring objectivity and privacy.
Key Concepts
- -- Data Exploration
- The initial investigation of data to discover patterns, spot anomalies, test hypotheses, and check assumptions.
- -- Structured Data
- Data organized in rows and columns, typically found in spreadsheets or databases.
- -- Outliers
- Data points that differ significantly from other observations, affecting analysis.
- -- Correlation
- A measure of how two variables are related, which can be positive, negative, or nonexistent.
- -- Data Visualization
- Graphical representation of information and data to easily identify patterns, trends, and outliers.
- -- Causation vs Correlation
- The principle that correlation between two variables does not imply that one causes the other.
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