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Data Science: Theory Ronojoy Adhikari The Institute of Mathematical Sciences

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Axiom : your organization will benefit from data

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Lots of data - where is the science ? Science : observation - hypothesis - experiment - theory What are we observing ? What is our hypothesis ? Can we experiment ? Will there be a theory ?

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Need

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Need Collection

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Need Collection Inference

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Need Collection Inference

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Need Collection Inference Automated Inference ~ Machine Learning

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Uncertainty - how much will the Nile flood ? - when will this equipment fail ? - is this email spam ? - is this applicant a good hire ? Decisions - should we invest in dams ? - should we build redundancy ? - should i delete without reading? - should we look more ? We need to make reasoned decisions in the face of uncertainty Reasoning : Logic - Boolean algebra Uncertainty : Chance, probability Combine : Bayesian probability

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1. Identify the problem 2. Find relevant data sources 3. Preprocess the data 4. Apply the algorithm (ML) 5. Visualize the process 6.Tell your story and maintain Six steps to value from data