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Introduction To Data Science

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Introduction to data science
Introduction to data science
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Introduction To Data Science

  1. 1. Introduction to Data Science Connecting … in Analytics Spotle.ai Study Material Spotle.ai/Learn Spotle.ai Study Material Spotle.ai/Learn
  2. 2. Mousum Dutta Chief Data Scientist, Spotle.ai IIT Kharagpur Dr Sourish Das Assistant Professor, Chennai Mathematical Institute Dr. Subhas Kulkarni Distinguished Data Scientist Spotle.ai Study Material Spotle.ai/Learn 2 Instructors
  3. 3. Spotle.ai Study Material Spotle.ai/Learn 3 All around us, data is exploding…. Machine Learning Traditional Software Data Analysis Over 2.5 quintillion bytes of data are created every single day Source: domo.com
  4. 4. Spotle.ai Study Material Spotle.ai/Learn 4 And exploding at an increasing pace…. Machine Learning Traditional Software Data Analysis
  5. 5. Spotle.ai Study Material Spotle.ai/Learn Every day your digital traces are being mined to…. Machine Learning Traditional Software Data Analysis Recommend Your Next Buy Fight Terrorism Win Matches Predict Cyclones Prevent Frauds Solve Homelesness Invent the next superdrug 5
  6. 6. Spotle.ai Study Material Spotle.ai/Learn 6 And Data Scientists are leading the expedition Machine Learning Traditional Software Data Analysis • Fight terrorism • Invent the next superdrug • Solve Homelesness • Predict Cyclones • Win Matches • Recommend your next buy Demand for Data Scientists/ Data Engineers to Grow 40% by 2020 Source: US department of statistics
  7. 7. Spotle.ai Study Material Spotle.ai/Learn What is Data Science? Domain Expertise Statistics Mathematics Computer Science Machine Learning Traditional Software Data Analysis Data Science Data science is a multi- disciplinary field that uses scientific methods, processes, algorithms and systems to extract knowledge and insights from data in various forms, both structured and unstructured, similar to data mining. - Wikipedia 7 Data Science
  8. 8. Spotle.ai Study Material Spotle.ai/Learn Data Science interconnects disconnected processes to build automated analytical systems Data Collection • Usually happens outside of the analytical system • Results of primary and secondary research/ customer data Extract, Transform and Load (ETL) • Extracting the data from various sources and converting into machine-readable formats • Is implemented by BI programmers Core Analytics • The statistician creates new models based on the data or fits existing models on to it to derive insights Reporting • Reports are generated based on the data summarising past performances and future forecasts • This step is delivered by business analysts/ domain experts DataScience 8
  9. 9. Spotle.ai Study Material Spotle.ai/Learn Data Scientist – Skillsets Better Programmer than a Statistician Better statistician than a Programmer Master Integrator Statistics Analytics Programming -Python -R Business Analysis/ Domain Expertise Data Mining Artificial Intelligence/ Machine Learning 9
  10. 10. Data Science Core Disciplines and Techniques Spotle.ai Study Material Spotle.ai/Learn Spotle.ai Study Material Spotle.ai/Learn
  11. 11. Spotle.ai Study Material Spotle.ai/Learn Statistical decision making Hypothesis Testing Testing Alternative Hypotheses Is it true that vitamin C has the ability to cure or prevent the common cold? Or is it just a myth? Analysis of Variance Comparing Multiple Options Buying a new mobile phone but not sure how it stacks up against the alternatives? Spotle.ai Study Material Spotle.ai/Learn
  12. 12. Spotle.ai Study Material Spotle.ai/Learn Predictive modelling The science of analyzing current and historical facts to predict future or otherwise unknown events. For example, estimating the mileage of a car at prototype design phase. 12
  13. 13. Exploratory analysis Analysing data sets to find key characteristics. Used to find out a group of customers from existing list of customers who are probable customers for an add-on product. This forms the basis of customer segmentation in market research.  Spotle.ai Study Material Spotle.ai/Learn
  14. 14. Spotle.ai Study Material Spotle.ai/Learn Classification analysis Part of predictive modelling, this technique is used to divide a training data set into groups of similar data. Here the target output are classes or clusters. Used to determine if a new email that this a spam or not.  14
  15. 15. Spotle.ai Study Material Spotle.ai/Learn Time-series analysis Time Series Analysis is the technique of analysing trends across successive periods. As an example, Time Series Analysis will be used in analysing sales trends over previous quarters and forecasting sales for next quarter. 15
  16. 16. Spotle.ai Study Material Spotle.ai/Learn Database management This is all great, but where is all the data stored? How is it retrieved? How is it managed? 16
  17. 17. Spotle.ai Study Material Spotle.ai/Learn Certificate Masterclass in Data Science with R – What will you learn? ✓ Understand different data analysis problems and algorithms. ✓ Get a structured approach to convert high level data analytics problem statements into well defined workflow for solutions.  ✓ Learn how to take a problem statement and break it down into smaller components and solve using an appropriate algorithm. ✓ Learn how to execute data science projects in one of the widely adopted languages for data science, that is R. ✓ Linear algebra that is critical for data science algorithms. ✓ Fundamentals of statistics that is the backbone of data science. 17
  18. 18. Learn Data Science In The Most Intense Course Ever: https://spotle.ai/learn/data-science-with-r 70 Interactive Videos with illustrative examples 24/7 Access to chat and career support 12 Live Classes With Instructors to learn concepts first-hand 50 Quizzes to test your learning on the go 25 Hours Of Lecture 20 Practice sessions and real-life projects Learn At Your Own Pace With Integrated Instructor Support Spotle.ai Study Material Spotle.ai/Learn Interactive Videos with illustrative examples Quizzes to test your learning on the go Hours Of Lecture Live Classes With Instructors to learn concepts first-hand Practice sessions and real-life projects Access to chat and career support 18
  19. 19. Spotle.ai Study Material Spotle.ai/Learn 19 Your Take - aways ✓ Certificate Of Completion. ✓ Integrated live projects and performance based internship. ✓ Membership of Spotle AI Alumni club with priority access to courses, events and mentoring. ✓ Optimized career path fitment through AI. ✓ Personalised career guidance and assistance. Sign up for the Masterclass: https://spotle.ai/learn/data-science-with-r Spotle.ai Study Material Spotle.ai/Learn Spotle.ai Study Material Spotle.ai/Learn

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