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IES Faculty - Introduction to Big Data


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IES' Daniel Tuohy presentation provided an introduction to big data at our IES Faculty event, which took place in London on 27th April, 2016. The seminar focused on the application and status of Intelligent Big Data in the fields of building services, architecture and construction.

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IES Faculty - Introduction to Big Data

  1. 1. IES Faculty Event – 27th April 2016 Intelligent Big Data in Buildings - Introduction to Big Data
  2. 2. How much data is out there? • 40% growth fuelled by more people and enterprises doing everything online. • Data from embedded systems (major part of IOT) will account for 10% of Digital Universe in 2020.
  3. 3. How much data is out there? • Next year we will see 3 times more connected devices than people • Next year mobile data traffic will have grown 13 times in last 5 years
  4. 4. Big Data Explosion • Poses significant challenges: – Processing – Storage – Networking and architecture. Data available Percentage that can be processed
  5. 5. Characteristics of Big Data – 3V’s • Volume – 44 ZB by 2020 and % data that can be processed will decrease. • Variety – Not just structured data anymore (relational e.g. tables). Much of new data will be unstructured (audio, videos, docs) • Velocity – Demand for near real time analysis. • Some people talk about the fourth ‘V’ of Veracity.
  6. 6. Characteristics of Big Data – Volume • % of overall valuable or “Target-rich” data expected to double by 2020. • Digital Universe data is mostly transient – e.g. unsaved Netflix movie streams or online gamer interactions (2020 storage capacity will store 15% of DU) (5% in 2013)
  7. 7. Characteristics of Big Data – Variety • Structured data that fitted into tables & relational databases (e.g. transactional or financial data) relatively straight forward to handle • Data often unstructured - creates problems for storing, mining & analysing (text, photo, metadata)
  8. 8. Characteristics of Big Data – Velocity • Data-at-rest and data-in-motion. • Ability to analyse real-time data can bring competitive advantages • Life-time of data utility – how long will data be useful? Determines analysis (no longer only batch analysis)
  9. 9. Addressing Big Data Challenge • Cloud Computing Solutions. • Large In-Memory Databases • Real-time analysis • Distributed processing ecosystems.
  10. 10. Big Data Technologies - Storage • Built namely in SQL & business mainstay • Issues scaling when dataset gets ‘Big’ • Not designed to be distributed • Master-slave & sharding approaches used for scaling up • Need for other data storage tools. • NOSQL databases are non- relational & document-orientated • NOSQL is response to growing scale of databases (facebook/twitter) & falling hardware costs
  11. 11. Big Data Technologies - Storage • Very fast and scalable • Easy to distribute • BUT – Many data structures cant be modelled • Richer data than key/value pairs • Eventually consistent (current data visible by all) • BUT – No ACID type transactions (important in banking)
  12. 12. Big Data Technologies - Processing • Some problems require use of collection of computers used • Computing problem divided into parts and worked on • Hadoop is a open source data storage & processing API (vendor versions also). • Hadoop is good for: – Large data sets & cheap scaling – Fast parallel data processing – Data from multiple sources/formats – Need to move computation to data – Point of Sale Transaction Analysis, Ad Targeting, Recommendation Engine, Risk Modelling
  13. 13. Big Data Skills • Range of different professionals • City planner uses data to understand citizens and plan developments • Business skills such as communication very important (complex findings/message) • Databases and SQL scripting • Programming (R and Python) • Advanced Excel, SPSS, SAS • Business Intelligence & Analytics (Tableau, Qlik, SAP)
  14. 14. Conclusions • Big Data explosion from human and machine generated data • Big Data characteristics pose different challenges • Technologies need to keep apace with data growth & consumer expectations • Big data presents huge opportunity for many businesses. IT professionals will not be solely responsible for making sense of this data.
  15. 15. References - 2014.pdf - - minute-infographic.html - - - landscape/#1086b7a93b8a - technology/ - fundamentals-21427224 - are-most-demand
  16. 16. Daniel Tuohy Landline: +44 141 945 8500 Mobile: +353 83 800 1137