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Hadoop Ecosystem - Coggle Diagram
Hadoop Ecosystem
Big Data Characteristics
Volume
Massive amount of data
TB, PB, EB scale
Velocity
Fast data generation
Real-time processing
Variety
Structured data
Unstructured & Semi-structured data
Veracity
Data quality
Data reliability
Value
Business insights
Better decision making
MapReduce
Map Phase
Input splitting
Generate key-value pairs
Shuffle & Sort
Group by key
Sort intermediate data
Reduce Phase
Aggregate values
Produce final output
Combiners
Reduce network traffic
Local aggregation
Fault Tolerance
Task re-execution
Data replication
NoSQL Database Types
Key-Value Stores
Fast lookups
Example: Redis
Document Stores
JSON/XML documents
Example: MongoDB
Column Family Stores
Column-based storage
Example: Cassandra
Graph Databases
Nodes and relationships
Example: Neo4j
Data Visualization in R
Plot Types
Bar Chart
Line Plot
Scatter Plot
Histogram
Applications
Data analysis
Trend identification
RStudio
Script editor
Plot window
Built-in Functions
plot()
hist()
barplot()
pie()
Recommendation Systems
Content-Based
User preferences
Similar items
Collaborative Filtering
User-user similarity
Item-item similarity
Product Recommendation
E-commerce
Personalized suggestions
Social Networks
Friend recommendations
Community detection