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.

Skills you'll gain: Customer Retention, Customer Analysis, Business Metrics, Data Analysis, Performance Metric, Customer Insights, Analysis, Performance Measurement, Trend Analysis, Benchmarking, Key Performance Indicators (KPIs), Pareto Chart, Data-Driven Decision-Making, Customer experience strategy (CX), Descriptive Analytics, Predictive Analytics, Root Cause Analysis, Consumer Behaviour
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Red Hat Enterprise Linux, Linux, Operating System Administration, IBM Cloud, Linux Commands, Virtualization, Systems Administration, Virtual Machines, Cloud Computing, System Monitoring, Software Installation, System Configuration
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Epidemiology, Public Health, Data Presentation, Geographic Information Systems, Data Visualization Software, GIS Software, Biostatistics, Health Policy, Risk Analysis, Estimation, Demography, Statistical Methods, Data Manipulation
Beginner · Course · 1 - 4 Weeks

Georgia Institute of Technology
Skills you'll gain: Structural Analysis, Mechanical Engineering, Failure Analysis, Engineering Analysis, Mechanics, Materials science, Engineering Calculations, Civil Engineering, Mathematical Modeling, Trigonometry
Mixed · Course · 1 - 3 Months

Skills you'll gain: Incident Response, Computer Security Incident Management, Incident Management, Cyber Threat Hunting, Endpoint Detection and Response, Intrusion Detection and Prevention, Threat Detection, Threat Management, Cybersecurity, Security Information and Event Management (SIEM), Event Monitoring, Cyber Attacks, Cyber Security Assessment, Continuous Monitoring, Security Management, Malware Protection, Cyber Engineering, Security Testing, Cyber Governance, Linux
Intermediate · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Extract, Transform, Load, Data Warehousing, Data Mining, Business Intelligence, Star Schema, Snowflake Schema, Data Modeling, Unsupervised Learning, Business Analytics, Data-Driven Decision-Making, Predictive Modeling, Cloud Computing, Market Analysis, Supervised Learning, Classification Algorithms
Beginner · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Logistic Regression, Analytical Skills, Correlation Analysis, Regression Analysis, Sampling (Statistics), Statistical Hypothesis Testing, Data Literacy, Data Analysis, R Programming, Descriptive Statistics, Statistical Modeling, Biostatistics, Model Evaluation, Exploratory Data Analysis, Statistical Analysis, R (Software), Statistics, Statistical Methods, Data Wrangling, Public Health
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Dimensionality Reduction, Unsupervised Learning, Supervised Learning, Feature Engineering, Classification Algorithms, Data Cleansing, Statistical Inference, Data Preprocessing, Data Access, Applied Machine Learning, Statistical Methods, Model Evaluation, Data Quality, Probability & Statistics, Data Analysis, Machine Learning Algorithms, Regression Analysis, Exploratory Data Analysis, Scikit Learn (Machine Learning Library), Machine Learning
Intermediate · Specialization · 3 - 6 Months

Red Hat
Skills you'll gain: Ansible, Linux Commands, Linux Administration, Linux, Infrastructure as Code (IaC), YAML, Automation, DevOps, System Configuration, Configuration Management, Software Architecture
Beginner · Course · 1 - 3 Months

Skills you'll gain: Metasploit, Penetration Testing, Vulnerability Scanning, Exploitation techniques, Vulnerability Assessments, Cybersecurity, Command-Line Interface, Virtual Machines, Linux, Technical Documentation
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Responsible AI, AI Workflows, AI Enablement, Agentic systems, Automation, Business Process Automation, Real Time Data, MLOps (Machine Learning Operations), AI Personalization, IT Automation, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, No-Code Development, Cloud-Based Integration, Business Transformation, Cloud API, Python Programming, Data Analysis, Restful API, API Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AI Workflows, Agentic systems, AI Orchestration, AI Enablement, Advanced Analytics, Data Processing, Enterprise Architecture, Automation, Data Transformation, Artificial Intelligence, Continuous Improvement Process, Data Quality, Application Deployment, Scalability, Performance Tuning, Business Metrics, Software Design Patterns
Intermediate · Course · 1 - 4 Weeks