What is Big Data
Processing large volumes of data
Big Data — technologies and methods for working with data that is too large or complex for traditional processing tools.
Characteristics (5V)
- Volume — data size (terabytes, petabytes)
- Velocity — speed of generation and processing
- Variety — diversity of data types
- Veracity — reliability and quality
- Value — business value
Technologies
- Hadoop — distributed storage (HDFS)
- Spark — fast in-memory processing
- Kafka — data streaming
- Elasticsearch — search and analytics
- Data Lake — data lakes (S3, Azure Data Lake)
Business Applications
- Customer Analytics — segmentation, personalization
- Predictive Analytics — demand forecasting
- Fraud Detection — transaction analysis
- Operations Optimization — logistics, manufacturing
- Marketing — campaign effectiveness analysis