Data Processing
ICSE · Class 11 · Artificial Intelligence
Complete topic list for Data Processing in ICSE Class 11 Artificial Intelligence. Key concepts, sub-topics, and what to focus on for board exams.
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Topics in Data Processing
1. Data Cleaning and Dirty Data
- Data cleaning is the process of identifying and correcting or removing errors and inconsistencies within a dataset and ensuring that all data is in a format appropriate for analysis.
- Dirty data is data that contains many errors or has not gone through the data-cleaning process.
- Data cleaning is a crucial initial step in any data project because initially obtained data is rarely ideal for analysis.
2. Data Quality and Consistency
- Data quality is the degree to which data follows the rules of particular requirements.
- Completeness is the degree to which all required values are known.
- Consistency can be checked across different systems, by checking the source, or by checking the latest data.
3. Pandas for Data Cleaning
- Pandas stands for Python Data Analysis Library.
- Pandas is a popular Python library for data processing, cleaning, manipulation, and analysis.
- Pandas provides Series and DataFrames for representing and manipulating data efficiently.
4. Handling Missing Values, Duplicates, and Inconsistencies
- Missing values can be handled by removing rows or columns, or by filling values using a fixed value, previous value, next value, mean, median, or mode.
- Forward fill uses the previous value, while backward fill uses the next value.
- Duplicates can overrepresent one entry and lead to wrong conclusions.
Key Concepts
Central concept: Data Processing
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