Information retrieval courses can help you learn search algorithms, indexing techniques, and data mining strategies. You can build skills in evaluating search results, optimizing query performance, and understanding user intent. Many courses introduce tools like Elasticsearch, Apache Solr, and various machine learning libraries, showing how these technologies enhance information retrieval processes and improve the accuracy of search results.

University of Colorado System
Skills you'll gain: Database Design, Software Design, Application Security, User Experience Design, Vulnerability Assessments, Database Theory, Unified Modeling Language, Unit Testing, Usability, UI/UX Research, Threat Modeling, Usability Testing, User Interface and User Experience (UI/UX) Design, Vulnerability Management, Data Flow Diagrams (DFDs), Relational Databases, Software Visualization, Security Software, Systems Development Life Cycle, Software Development Life Cycle
Beginner · Specialization · 3 - 6 Months

Nanjing University
Skills you'll gain: Web Scraping, Exploratory Data Analysis, Data Wrangling, Data Preprocessing, Data Structures, Object Oriented Programming (OOP), Data Processing, Data Mining, Scientific Visualization, Data Analysis, Pandas (Python Package), NumPy, Statistical Analysis, Data Presentation, Data Capture, User Interface (UI), Financial Data, Programming Principles, Python Programming
Mixed · Course · 1 - 3 Months

Skills you'll gain: Virtual Networking, Load Balancing, Microsoft Azure, Network Monitoring, Network Troubleshooting, Network Planning And Design, Network Administration, Virtual Machines, Disaster Recovery, Event Monitoring, Network Performance Management, Security Controls, System Monitoring, Network Security, Remote Access Systems
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: R (Software), Tidyverse (R Package), Web Scraping, Data Manipulation, Data Wrangling, R Programming, Data Transformation, Memory Management, Data Cleansing, Data Science, Statistical Programming, Data Integration, Data Processing, grep, Text Mining, Data Import/Export, Web Services, Data Analysis, Data Structures
Intermediate · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Amazon Web Services, AWS Identity and Access Management (IAM), Amazon S3, Network Planning And Design, Identity and Access Management, Cloud Solutions, Cloud Management, Cloud Computing, Cloud Computing Architecture, Public Cloud, User Provisioning, Network Architecture, Virtual Networking, Cloud Infrastructure, Cloud Services, User Accounts, Solution Architecture
Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Threat Modeling, Threat Management, Risk Management, Business Continuity Planning, Asset Protection, Risk Analysis, Risk Management Framework, Security Strategy, Cyber Governance, Risk Mitigation, Vendor Management, Business Continuity, Risk Control, Vulnerability Assessments, Security Management, Cyber Risk, Vendor Relationship Management, Compliance Management, Supplier Risk Management, Supplier Management
Beginner · Specialization · 1 - 3 Months

Technical University of Munich (TUM)
Skills you'll gain: Cost Accounting, Management Accounting, Operating Cost, Cost Control, Cost Estimation, Cost Management, Cost Benefit Analysis, Strategic Decision-Making, Profit and Loss (P&L) Management, Accounting, Product Assortment, Capacity Management, Decision Making, Capacity Planning, Forecasting
Intermediate · Course · 1 - 4 Weeks
Michigan State University
Skills you'll gain: Infographics, Adobe Illustrator, Graphic and Visual Design, Diagram Design, Graphic Design, Visual Design, Typography, Layout Design, Design Elements And Principles, Visual Storytelling, Graphical Tools, Storytelling, Color Theory
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Internet Of Things, Security Engineering, Information Systems Security, Wireless Networks, Infrastructure Security, General Networking, Network Security, Cybersecurity, Security Controls, IBM Cloud, Computing Platforms, Cloud Platforms, Cryptography, Advanced Encryption Standard (AES), Network Protocols, Market Opportunities, Automation, Emerging Technologies, Endpoint Security
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, AI Workflows, AI Integrations, Agentic Workflows, Automation, Prompt Engineering Tools, AI Enablement, Performance Measurement, Decision Intelligence, Generative AI, Process Optimization, Scalability, Debugging
Intermediate · Course · 1 - 3 Months

Universidade de São Paulo
Skills you'll gain: Lifelong Learning, Learning Strategies, Peer Review, Collaborative Software, Diagram Design, Collaboration, Information Architecture, Critical Thinking, Team Collaboration, Constructive Feedback, Organizational Skills
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Model Optimization, Systems Design, Design Software, Engineering Calculations, Engineering Analysis, Technical Design, Engineering, Scientific, and Technical Instruments, Systems Analysis, Numerical Analysis, Simulation and Simulation Software, Image Quality, Medical Imaging, Graphical Tools, Physics
Build toward a degree
Advanced · Course · 1 - 3 Months