Introduction to BIG DATA part 01
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This document provides an introduction to big data, including what it is, where it comes from, and its key characteristics. It discusses the 3Vs of big data - volume, velocity, and variety. Volume refers to the large size of big data in peta bytes. Velocity means data is available in real-time. Variety means data comes from various structured, unstructured, and semi-structured sources. Other characteristics discussed are valence, which is the connectedness of big data, and veracity, which refers to the uncertainty and noise in data. The document outlines how big data looks and provides references for further information.
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Introduction to BIG DATA part 01
- 1. Introduction to BIG DATA Part 01 Nadeesha Thilakarathne
- 2. Content What is BIG DATA From Where it Comes 3V's of Big Data Velocity Variety Volume Characteristics of Big Data Valance Veracity How Big Data Looks References 2
- 3. What is BIG DATA Data which are very large in size BIG DATA >1015 3
- 4. From Where it Comes 4
- 5. Variety 3V's of Big Data Volume Velocity 3Vs 5
- 6. Velocity The data is increasing at a very fast rate Yesterday data is not recent anymore 6
- 7. Variety 7 DATA Structured 1. Databases 2. Data warehouses 3. Enterprise systems (CRM,ERP) Unstructured 1. Analog Data 2. GPS tracking information 3. Audio/video streams Semi Structured 1. XML 2. Email
- 8. Volume The amount of data which we deal with is of very large size of Peta bytes. 8
- 9. 3V's of Big Data Volume: big data doesn't sample; it just observes and tracks what happens Velocity: big data is often available in real-time Variety: big data draws from text, images, audio, video; plus it completes missing pieces through data fusion 9
- 10. Characteristics of Big Data Volume Variety Velocity Valance Veracity 10 New Vs come into the action with new challenges
- 11. Valance Connectedness of Big data 11 More connections among data Increase the Complexity of data analysis
- 12. Veracity The quality of captured data can vary greatly, affecting accurate analysis Simply say ,Uncertainty of Data Refers to the biases, noises, abnormality in data Trustworthinessand Truthfulnessmatters 12
- 13. How Big Data Looks 13
- 14. References Big Data What is Big Data 3 Vs of Big Data Volume, Velocity and Variety Day 2 of 21 WIKIPEDIA Big Data Educationalresearchtechniques Characteristics of Big Data 14