people and processes for data management and analytics
DESCRIPTION
Cathy O’Neil, Lead Data Scientist. PEOPLE AND PROCESSES FOR DATA MANAGEMENT AND ANALYTICS. When do you need a data scientist?. When you have too much data for Excel to handle. When do you need a data scientist?. When your data visualization skills are being stretched. - PowerPoint PPT PresentationTRANSCRIPT
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PEOPLE AND PROCESSES FOR DATA MANAGEMENT AND ANALYTICSCathy ONeil, Lead Data Scientist
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When do you need a data scientist?
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When you have too much data for Excel to handleWhen do you need a data scientist?
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When your data visualization skills are being stretchedWhen do you need a data scientist?
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When you arent sure if something is noise or informationWhen do you need a data scientist?
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When you dont know what a confidence interval isWhen do you need a data scientist?
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Lets take a step back:Should you need a data scientist?
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Are you asking the right questions?Should you need a data scientist?
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Are you getting the most out of your data?Should you need a data scientist?
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Are you anticipating shocks to your business?Should you need a data scientist?
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Are you running your business sufficiently quantitatively?Should you need a data scientist?
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So, youve decided to hire a Data Scientist (nice move!)
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What do you need to get started?
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Data storageWhat do you need to get started?
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Data access usually through a database (payoffs for different types)What do you need to get started?
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Larger-scale or less uniform data may require Hadoop access (and someone with real tech expertise to set it up) What do you need to get started?
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Who and how should you hire?
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A math major? Perhaps a Masters in statistics? Or a Ph.D. in machine learning?Who and how should you hire?
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What should the job description include?Who and how should you hire?
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Who even interviews someone like this?Who and how should you hire?
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What does a Data Scientist want from you?
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Interesting, challenging workWhat do they want from you?
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Lots of great data (data is sexy!)What do they want from you?
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To be needed, and to have central importance to the businessWhat do they want from you?
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To be part of a team that is building somethingWhat do they want from you?
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A good and ethically sound work atmosphereWhat do they want from you?
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Cash moneyWhat do they want from you?
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Further business reasons for hiring a Data Scientist
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Reporting helpFurther business reasons
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Reporting help
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Enables you to see into data without taxing your tech team (beyond setup)Further business reasons
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A/B testingFurther business reasons
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Beyond A/B testing: adaptability and customizationFurther business reasons
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Knowing whether numbers are random (seasonality) or require actionFurther business reasons
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What-if analysisFurther business reasons
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Help with business planning:
Will there be enough data to answer a given question? Will there be enough data to optimize on the answer?Further business reasons
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Education for senior managementFurther business reasons
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Mathematically sound communication to clientsFurther business reasons
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Case Study: Stress Tests
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We can learn from finance data miners are spoiled for dataCase Study: Stress Tests
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You know how big changes will affect your business directionally and specificallyCase Study: Stress Tests
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Stress tests allow you to combinechanges and estimate quantitativelyCase Study: Stress Tests