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 Boulder
Skills you'll gain: Data Ethics, Data Visualization, Data Visualization Software, Interactive Data Visualization, Visualization (Computer Graphics), Data Security, Data Presentation, User Centered Design, Technical Communication, Cybersecurity, Healthcare Ethics, Cyber Attacks, Usability, Statistical Reporting, Computer Security, Data Storytelling, Ethical Standards And Conduct, Medical Science and Research, Information Privacy, Analysis
★ 4.3 (131) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: JUnit, Test Automation, Test Tools, Test Script Development, Unit Testing, Software Testing, Performance Testing, Quality Assurance, Performance Stress Testing, IT Automation, Performance Tuning, Scripting, Debugging, Network Performance Management, Simulations
★ 4.9 (10) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Looker (Software), Dashboard, Dashboard Creation, Business Intelligence, Data Import/Export, Data Integration, Query Languages, Data Analysis, Data Management
★ 4.3 (15) · Intermediate · Project · Less Than 2 Hours

Skills you'll gain: LangChain, Hugging Face, Prompt Engineering, Retrieval-Augmented Generation, Model Evaluation, Large Language Modeling, CrewAI, OpenAI API, Generative AI Agents, LLM Application, Vector Databases, Agentic Workflows, Tool Calling, ChatGPT, Responsible AI, Token Optimization, Embeddings, OpenAI, Generative AI, Python Programming
★ 4.3 (222) · Intermediate · Specialization · 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
★ 4.7 (6) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Email Marketing, Paid media, Order Fulfillment, Media Planning, Social Media Campaigns, Google Ads, Social Media Marketing, Social Media Strategy, Performance Measurement, Order Processing, Customer Acquisition Management, Brand Loyalty, Search Engine Marketing, Order Management, Content Creation, Marketing Planning, Customer Relationship Management, Customer Retention, Journey Mapping, Content Performance Analysis
★ 4.9 (1.8K) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Customer Success Management, Salesforce, Dashboard, Sales Operations, Service Management, Customer Relationship Management, Customer Relationship Management (CRM) Software, Sales Support, Data Visualization, Customer Support, Sales Management, Customer and Client Support, Customer Service, Inside Sales, Data Storytelling, Performance Reporting, Business Reporting, Data-Driven Decision-Making
★ 4.7 (275) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Computer Hardware, Cloud Deployment, Hardware Troubleshooting, Networking Hardware, Cloud Computing, Virtualization and Virtual Machines, Cloud Services, General Networking, Network Troubleshooting, TCP/IP, Virtualization, Network Protocols, Network Administration, Dynamic Host Configuration Protocol (DHCP), Peripheral Devices, Information Technology Operations, Technical Support, System Configuration, Wireless Networks, Data Storage
Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Network Troubleshooting, Microsoft Azure, Virtual Networking, Virtual Machines, Load Balancing, System Configuration, Cloud Security, Network Planning And Design, Network Security, Cloud Storage, Cloud Management, Data Storage, Data Security, Performance Tuning
★ 4.8 (15) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Nutrition Education, Community Health, Nutrition and Diet, Health Education, Health Promotion, Public Health, Public Health and Disease Prevention, Child Health, Preventative Care, Health Disparities, Working With Children, Health Equity, Family Support, Exercise Science, Community Development, Student Engagement, Community Outreach, Student Support and Services, Health Policy
★ 4.8 (875) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Storage, Data Architecture, Cloud Security, Database Management, Cloud Platforms, Databases, Security Management, User Provisioning, Role-Based Access Control (RBAC)
★ 3.8 (10) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Databricks, Real Time Data, PySpark, Apache Hive, Apache Spark, Big Data, Data Processing, SQL, Data Manipulation, Pandas (Python Package)
★ 4.8 (43) · Intermediate · Guided Project · Less Than 2 Hours