EMPLOYEE ATTRITION · 2020. 8. 5. · Why Attrition Matters? REPLACEMENT COST EMPLOYEE MORALE...
Transcript of EMPLOYEE ATTRITION · 2020. 8. 5. · Why Attrition Matters? REPLACEMENT COST EMPLOYEE MORALE...
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EMPLOYEE ATTRITION
Note: This presentation is in collaboration with 6 analysts. Authors can be provided by request..
IBM Dataset: Presentation
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Background & Objective
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Direct Exit CostRecruitingTraining
Lost of ProductivityDisengagementDomino Effect
Why Attrition Matters?
REPLACEMENT COST EMPLOYEE MORALEInstitutional KnowledgeExternal Relationships
Service Quality
KNOWLEDGE LOST
“For someone making $40K a year, replacement cost is $20K - $30K in recruiting and training expenses.”-- Society of Human Resource Management
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● Unsatisfying compensation and benefits
● Lack of development opportunity
● Lack of work-life balance
● Lack of recognition
● Poor management
● Poor work conditions
Causes of Attrition
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Why do employees leave?
What factors characterize employee attrition?
What can companies do to prevent losing employees?
We want to answer...
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Agenda
Background & ObjectiveResearchQuestions to Answer
Descriptive Analysis
Overview of DataChallenges
ModelingClassifier SelectionFeature Importance
Data PreprocessingOver Sampling
Attribute Selection
Insights & Recommendation
What Companies Can Do
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Descriptive Analysis
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Data Types
Overview of Data
Structure
1470 observations
35 attributes
Label - Attrition
“Yes”: 237 (16%)
“No”: 1233 (84%)
Numeric
Categorical
Ordinal/Scale
IBM HR Employeehttps://www.kaggle.com/pavansubhasht/ibm-h
r-analytics-attrition-dataset
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Challenges
Biased Dataset
The numbers of “Yes” and “No” are
unbalanced
Accuracy vs. Precision
Need to focus on the number of ‘Yes’, instead of
‘No’
Too Many Attributes
Problem with overfitting and
redundancy
237 Yes1233 No TP/(TP+FP) 35
attributes
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Data Preprocessing
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Employee ID
Employee Count
Over 18
Standard Hours
Remove Single Unique Value Remove Highly Correlated Variables
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Over Sampling The“Yes”
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Feature SelectionTop Features:● Monthly Income● Over Time● Stock Option Level● Years At Company● Age● Distance From Home
Whole dataset
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Modeling
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Modeling with All Attributes
Model Accuracy Precision
Logistic Regression 74.2% 73%
Decision Tree 78.9% 73.7%
Random Forest 78.1% 79.1%
Gradient Boosting 95.9% 92.4%
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Modeling with Top Attributes from Feature Selection
Model Accuracy Precision
Logistic Regression 69.4% 67%
Decision Tree 75.5% 78.3%
Random Forest 75.9% 77.7%
Gradient Boosting 92.9% 87.4%
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Decision Tree (Decision Nodes)
Random Forest (Decision Nodes)
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Insights & Recommendation
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Why do employees leave?
An Employee will stay with an organization:
● If attributes such:
○ Satisfactory Pay
○ Working Conditions
○ Developmental Opportunities
● Are equal to or greater than:
○ Time / Effort
Theory of Organizational Equilibrium
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What we found influences Employees to Leave
Monthly SalaryOvertime Job Involvement
Solution
Characteristics
Stock OptionsAge Years With Company
Time/effort Satisfactory Pay
Satisfactory Pay Working ConditionsDevelopment
Development
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Most Important Attributes
● Overtime
● Age
● Monthly Income
● Years At Company
● Stock Options
● Training/Skills & Promotions
● Manage Age 26-34
● Promotions Opps. For Income
below $2960
● First few years are Highest Risk
● Offer higher stock options
How to address?
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Characteristics of Attrition by Department
Employees with technical degrees are more likely to
leave when working for HR Department.
Employees from all departments are roughly
twice as likely to leave when working overtime.
Insight 2Insight 1
Employees from all departments benefit from
High Job Involvement.
Insight 3
85% 2X 73% /37%
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Employees that show signs of leaving...will not only be dealt with by managers and HR…. but by solutions
groups, something IBM is already using today.
IBM has saved nearly $300 million in retention costs using similar AI and predictive techniques.
Future of Employee Management
Source: https://www.cnbc.com/2019/04/03/ibm-ai-can-predict-with-95-percent-accuracy-which-employees-will-quit.html
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Q&ATHANKS
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Appendix
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Initial ModelingOur Best Models:
1. Support Vector Machine
2. Random Forest
3. Decision Tree
4. Gradient Boosting
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Top FeaturesDecision Tree
Feature Importance:Based on Gini Index
Top Five1. Age2. Monthly Income3. Overtime_No4. Years at Company5. Job Satisfaction
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Feature ImportanceBased on Gini Index
Top Five1. Monthly Income2. Overtime_No3. Overtime_Yes4. Years at Company5. Age
Top FeaturesRandom Forest
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Top FeaturesGradient BoostingFeature Importance:Based on Friedman
Top Five1. Monthly Income2. Years At Company3. Age4. Overtime_Yes5. Distance From Home
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Highest Attrition RatioThe highest ratio of attrition is in the first three years with the company. Between 30%-50% attrition.
The highest turnover rate is between the ages of 18-20 with an average turnover of 57%. Ages 59-60 saw no turnover, while 58 saw a turnover of 35%.
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Largest Disparity
For Job Role there is difference of up to 6x between “Sales Representative” and “Healthcare Representative”.
For Job Level, there is difference of up to 7x between “Level 1” and “Level 4”.
The greatest disparity in turnout is within Job Role, Age, and Job Level.