Predictive Analytics PA WC Conf June 2017 FINAL.pptx [Read ...€¦ · Predictive Analytics •...
Transcript of Predictive Analytics PA WC Conf June 2017 FINAL.pptx [Read ...€¦ · Predictive Analytics •...
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AGENDA
What is predictive analytics?What is data mining?What is big data?What is a data scientist?
How big data is leveraged to save lives
Advanced math – moving away from linear models of data analytics
Predictive analytics in claims and underwriting
Questions
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WHAT IS PREDICTIVE ANALYTICS?
Predictive analytics describes any approach to data mining with four attributes:
An emphasis on prediction, rather than description, classification or clustering Rapid analysis measured in hours or days, rather than the
stereotypical months of traditional data mining An emphasis on the business relevance of the resulting insights -
no “ivory tower” analyses An emphasis on ease of use, thus making the tools accessible to
business users.
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WHAT IS DATA MINING?
Data mining is an interdisciplinary subfield of computer science. It is the computational process of discovering patterns in large data sets involving methods at the intersection of artificial intelligence, machine learning, statistics, and database systems.
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WHAT IS BIG DATA?
Big data is a term for data sets that are so large or complex that traditional data processing applications are inadequate. Challenges include analysis, capture, data curation, search, sharing, storage, transfer, visualization, querying, updating and information privacy.
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A data scientist is someone who blends math, algorithms, and an understanding of
human behavior with the ability to hack systems together to get answers to
interesting human questions from data
What is a Data Scientist?
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How Big Data is Leveraged To Save Lives
Kent Szalla
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Agenda
• Predictive Analytics• How to get started ‐ Vision Strategy Plan (VSP) • Prerequisites for Success • Closing
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Predictive Analytics
• Not:– Standard statistical analysis– Actuarial science
• Ingredients:– Lots of data– Lots of processing power– Tools (Tensorflow, R, JSAT, IBM, etc.)– Data scientists– Domain knowledge– CrowdFlower definition: AI=TD+ML+HITL
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Predictive Analytics
• Where:– Everywhere
• Who:– Google– Uber– PeopleNet– Othot
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“Machine learning...is the next transformation...[it] will be the basis and fundamentals of every
successful huge IPO win in 5 years.” – Eric Schmidt, Google Executive Chairman
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VisionVSP
StrategyPlan
Goal
Logic to reach Goal
Steps to reach Strategy
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Vision ‐ GoalWhat we want to accomplish
Why does a company implement a Safety Program?
Protect Life & Reduce Costs
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Strategy – LogicHow we reach our goal
How can we Protect Life & Reduce Costs?
Reduce & Control Risk
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Plan ‐ Steps
• Understand our vulnerabilities• Create action plan to mitigate
Steps to implement our Strategy
How can we Reduce & Control Risk?
Measure risk (historical and potential)
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VisionVSP
StrategyPlan
• Protect Life & Reduce Costs
• Reduce & Control Risk
• Measure Risk• Action Plan
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What metrics do we measure?
• Incidents/Injuries• Near Hits• Types (FA vs Recordable)
• Inspections• Observations• Observers
• Wt. % Safe• Late Fixes• Indexing
Measuring Risk
Historical Risk Engagement Quality
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What granularities do we measure?
Measuring Risk
Locations
Workers / Contractors
Observers
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Metrics
• Incidents/Injuries• Near Hits• Types (FA vs Recordable)
• Inspections• Observations• Observers
• Wt. % Safe• Late Fixes• Indexing
Measuring Risk
Historical Risk Engagement Quality (Inspection)
GranularitiesLocationsWorkers / ContractorsObservers
How much data is this?
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In a given month…
Granularity # of Levels
Locations
Workers / Contractors
Observers
Total
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25
30
35
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Monthly Trend for Average CompanyLocations Past 12 Months
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37
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55
60
65
70
75
80
85
Monthly Trend for Average CompanyWorkers / Contractors Past 12 Months
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77
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0
20
40
60
80
100
120
Monthly Trend for Average CompanyObservers Past 12 Months
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93
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In a given month…
Granularity # of Levels
Locations
Workers / Contractors
Observers
Total
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In a given month…
Granularity # of Levels
Locations 37
Workers / Contractors 77
Observers 93
Total 207
Metric Type # of Metrics
Historical Incidents 6
Engagement 5
Quality 22
Total 33
207 Granularities X 33 Metrics 6,831 Data Points=
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How much information can the brain handle at one time?
The information you can hold in your mind at one time is the information you can interrelate.
Nelson Cowan, Ph.D. PsychologyProfessor Univ. Missouri‐Columbia
4Answer:
< 6,831
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Problem
4 6,831
Mind’s LimitInformation to
Process
<
Problem Solver (Data Scientist)
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How can a Data Scientist help?
6,831 1
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Prediction
Condense Information Measure Risk
Plan • Measure Risk• Action Plan
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Interpreting Prediction
Probability
An injury is likely to occur
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Interpreting Prediction
Probability
80% Chance of Rain
80% Chance of Injury
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Interpreting Prediction
Project Risk
Palo Construction
RFK Bridge
OPD Headquarters
One Life Way
National Harbor
Flag
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Interpreting Prediction
Project Risk
Palo Construction 20%
RFK Bridge 95%
OPD Headquarters 10%
One Life Way 50%
National Harbor 80%
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What else can we do with Probabilities?
Grouping
0% 100%33% 66%
0% 100%50% 80%
0% 100%70%
Not Likely
Very Likely
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Project Risk
Palo Construction 20%
RFK Bridge 95%
OPD Headquarters 10%
One Life Way 50%
National Harbor 80%
What else can we do with Probabilities?
Grouping
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Project Risk
RFK Bridge 95%
National Harbor 80%
One Life Way 50%
Palo Construction 20%
OPD Headquarters 10%
What else can we do with Probabilities?
Ranking
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0%
25%
50%
75%
100%
Location Probability TrendsRFK Bridge National Harbor
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What else can we do with Probabilities?
Trending
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What else can we do with Probabilities?
Aggregation
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Measure Risk
Plan • Measure Risk• Action Plan
GroupingRankingTrendingAggregation
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Plan • Measure Risk• Action Plan
How do we come up with an Action Plan?
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40Metric 1
Metric
2
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41Metric 1
Metric
2Profile 1
Profile 2
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Profile 1
Low EngagementHigh # At‐Risk
Low # Focused
Action Plan using Best Practices
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Measure Risk
Plan • Measure Risk• Action Plan
GroupingRankingTrendingAggregation
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Action Plan
Plan • Measure Risk• Action Plan
Action Plan
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Expanding the Concept
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Project Risk Recordable Body Part Cause
RFK Bridge 95% 41% Arm Struck By
National Harbor 80% 79% Back Slip/Trip
One Life Way 50% 15% Ankle Slip/Trip
Palo Construction 20% 2% Eye Foreign Object
OPD Headquarters 10% 1% Arm Laceration
Expanding the Concept
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Project Risk Recordable Body Part Cause
RFK Bridge 95% 41% Arm Struck By
National Harbor 80% 79% Back Slip/Trip
One Life Way 50% 15% Ankle Slip/Trip
Palo Construction 20% 2% Eye Foreign Object
OPD Headquarters 10% 1% Arm Laceration
Future Capabilities
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Future Capabilities
Project Risk Recordable Body Part Cause
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• People = data scientists and domain experts• Processes = collect and scrub data. Data quality.• Tools = many available• Adequate VSP• Engagement at all levels • Adequate plan to review/interpret results
– Data Use Plan– Seat at the Table
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Prerequisites for Success
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ADVANCED MATH VERSUS BLACK BOX
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Moving Away from Linear (Traditional) Models
Predict health given height and weight
Weight
Height
Healthy Individual
Unhealthy Individual
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Moving Away from Linear (Traditional) Models
Predict health given height and weight
Weight
Height
Healthy Individual
Unhealthy Individual
Predict Healthy
Predict Unhealthy
Logistic Regression
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Moving Away from Linear (Traditional) Models
Predict health given height and weight
Weight
Height
Healthy Individual
Unhealthy Individual
Predict Healthy
Predict Unhealthy
Logistic Regression
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Moving Away from Linear (Traditional) Models
Predict health given height and weight
Weight
Height
Healthy Individual
Unhealthy Individual
Predict Unhealthy
Predict Unhealthy
Predict Healthy
Decision Tree
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• Leverage more of the data being captured
Traditional Approach Big Data Approach
Analyze small subsets of data Analyze all data
Analyzedinformation
All available information
All available informationanalyzed
Analytics can help identify “Useful” data
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Slide 57
3 there's a point here about validating intuition AND finding new useful data, maybeAnn Gergen, 3/3/2015
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Text Mining Variables
• Text mining refers to the process of deriving relevant and usable text that can be parsed and codified into a word or numerical value.
• Text mining can identify co‐morbid conditions and/situations that will have profound impact on the outcome of a claim.
smoking
Pain unchanged
CXR
Diabetes/insulin/injections Packs day/coughing Pain killers/anti‐depression Children/school Pain unchanged Height/Weight Homemaker wife went to work c/o, CXR, FB, FX CBT – Cognitive Behavior Therapy
SAMPLE KEY WORDS/PHRASES
Text sources: Adjuster notes, medical reports, independent medical exams, etc.
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Modeling Architecture
Data Store – all historical data collected and organized
Training – identifying company/internal/external data specific patterns
Testing – using “hold out” sets to measure the accuracy of predictions
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Segmentation Analysis - Tests Model Accuracy
Divide all scored claims into segments
● After scoring distribute by ranking risks by score
○ Highest Risk to the Right
○ Lowest Risk to the Left
○ Each claim has an individual score
○ Worst Claim far right vs. Best Claim far left
○ Then add actual losses to test model accuracy
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Segmentation Analysis - Tests Model Accuracy
Divide all scored claims into segments
Lowest RiskBest Claims
Highest RiskWorst Claims
20% of scored claims 20% of scored claims 20% of scored claims 20% of scored claims 20% of scored claims
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High Risk
Low Risk
Early ID < Day 30 Models Identify 20% of Claims that have 78% of total costs
Medium Risk
Predictive Modeling in Action
2.19% 3.15% 4.74%
11.47%
4
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Slide 62
4 early identification is most meaningful here! focus on how that translates to reserving, actuarial evals, etc.Ann Gergen, 3/3/2015
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APPLYING ADVANCED ANALYTICS TO UNDERWRITING
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GLM
Traditional Linear vs. Multivariate results
MULTIVARIATE
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Daily Claim Alert Dashboard
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CASE LEVEL RESERVING DASHBOARDS
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Case‐Level Reserving Dashboard
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