Decision tree courses can help you learn how to create, interpret, and optimize decision trees for data analysis, classification, and regression tasks. You can build skills in feature selection, model evaluation, and understanding overfitting versus underfitting. Many courses introduce tools like Python's scikit-learn, R's rpart, and various visualization software, that support implementing decision trees and analyzing their performance in real-world datasets.

Coursera
Skills you'll gain: Strategic Sourcing, Supplier Management, Procurement, Vendor Management, Project Scoping, Market Analysis, Supply Chain, Market Intelligence, Market Research, Business Research, Data Collection, Project Documentation, Business Writing, Organizational Skills
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: AI Security, Threat Modeling, Security Engineering, Security Requirements Analysis, Threat Management, Data Flow Diagrams (DFDs), Threat Detection, Data Security, Key Management, Risk Analysis, Technical Documentation, Cloud Services, Technical Communication
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Financial Modeling, Financial Forecasting, Financial Statements, Depreciation, Balance Sheet, Capital Budgeting, Financial Analysis, Excel Formulas, Income Statement, Microsoft Excel, Risk Analysis, Data Storytelling, Data Validation, Cash Flows, Data Presentation, Return On Investment, Pivot Tables And Charts
Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Web Scraping, Data Structures, Git (Version Control System), Generative AI, Version Control, Matplotlib, Devops Tools, Plotly, DevOps, Agile Methodology, Web Development, Data Ethics, Flask (Web Framework), Data Visualization, Scripting, GitHub, Debugging, Data Analysis, Automation, Cloud Computing
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Adobe Express, Social Media Content, Responsible AI, Cross-Channel Marketing, Content Marketing, Generative AI, Social Media, Marketing Analytics, Data Ethics, Marketing Effectiveness, Data-Driven Decision-Making, Content Creation, Marketing Automation, Email Marketing, Social Media Campaigns, Adobe Creative Cloud, Graphic and Visual Design, Search Engine Optimization, Storytelling, Performance Analysis
Beginner · Specialization · 1 - 3 Months

University of California San Diego
Skills you'll gain: Unit Testing, Data Structures, Java, JUnit, Performance Tuning, Debugging, Algorithms, Object Oriented Programming (OOP), Theoretical Computer Science, Unstructured Data
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Financial Modeling, Variance Analysis, Key Performance Indicators (KPIs), Bookkeeping, Financial Forecasting, Revenue Forecasting, Budget Management, Financial Statement Analysis, Business Reporting, Dashboard, Capital Budgeting, Financial Controls, Financial Reporting, Financial Analysis, Process Improvement, Financial Services, Financial Data, Investments, Predictive Analytics, Data-Driven Decision-Making
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Negotiation, Conflict Management, Leadership, Mediation, Strategic Leadership, Relationship Management, Stakeholder Analysis, Case Studies, Stakeholder Management, Cultural Sensitivity, Complex Problem Solving, Strategic Decision-Making, Influencing, Collaboration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Web Analytics, Web Analytics and SEO, Marketing Analytics, Analytics, Technical Documentation, Technical Communication, Performance Metric, Data Analysis, Data-Driven Decision-Making, Team Oriented, Data Presentation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Spreadsheet Software, Marketing Analytics, Pivot Tables And Charts, Trend Analysis, Marketing Budgets, Marketing Strategies, Microsoft Excel, Google Sheets, Business Reporting, Data-Driven Decision-Making, Performance Reporting, Time Series Analysis and Forecasting, Marketing, Descriptive Analytics, Performance marketing, Performance Metric, Business Metrics, Performance Measurement
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Agentic systems, Generative AI Agents, AI Workflows, AI Enablement, Artificial Intelligence and Machine Learning (AI/ML), Emerging Technologies, Business Ethics, Social Impact, Problem Solving, Analysis, Business Planning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Jira (Software), Issue Tracking, Investigation, Data Quality, Data Validation, Data Integrity, Reconciliation, Change Control, Anomaly Detection, Dependency Analysis, Verification And Validation, Trend Analysis, Analysis, Project Documentation, Auditing, Workflow Management, Project Management, Leadership and Management
Beginner · Course · 1 - 4 Weeks