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.

Erasmus University Rotterdam
Skills you'll gain: Economics, Policy, and Social Studies, Economics, Economic Development, Socioeconomics, Sustainable Development, Policy Analysis, Financial Policy, Data Analysis, Tax, Environmental Issue, International Relations, Environment and Resource Management, International Finance, Investments, Policy Development, Data Literacy, Data Collection
★ 4.6 (90) · Beginner · Course · 1 - 3 Months

Advancing Women in Tech
Skills you'll gain: AI Workflows, Retrieval-Augmented Generation, Business Process Automation, Multimodal Prompts, Prompt Patterns, AI literacy, Generative AI Agents, Productivity, Context Engineering, Document Management
★ 4.8 (27) · Intermediate · Course · 1 - 4 Weeks

Politecnico di Milano
Skills you'll gain: Intellectual Property, Legal Risk, Responsible AI, General Data Protection Regulation (GDPR), Law, Regulation, and Compliance, Regulation and Legal Compliance, Information Privacy, Artificial Intelligence, AI literacy, Civil Law, Ethical Standards And Conduct
★ 4.5 (143) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Metasploit, Vulnerability Scanning, Exploitation techniques, Vulnerability Assessments, Cyber Threat Intelligence, Generative AI, Security Testing, Responsible AI, AI Integrations
Beginner · Course · 1 - 4 Weeks

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
★ 4.6 (438) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: File Management, Document Management, Microsoft Power Automate/Flow, Email Automation, Version Control, Microsoft Power Platform, Intranet, Automation
★ 4.5 (17) · Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Control Systems, Mathematical Modeling, Engineering Analysis, Differential Equations, Systems Analysis, Electrical Systems, Mechanics, Systems Thinking, Applied Mathematics, Performance Testing, Integral Calculus, Basic Electrical Systems
★ 4.7 (134) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Test Script Development, Data Structures, Java Programming, Algorithms, Software Testing, Java, Test Automation, Software Development, Scalability
★ 4 (62) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Apache Spark, Managed Services, Google Cloud Platform, Big Data, Apache Hadoop
★ 4 (11) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: Overcoming Objections, Closing (Sales), Value Propositions, Selling Techniques, Sales Presentation, General Sales Practices, Sales Presentations, Technical Sales, Phone Sales, Telephone Skills, Inside Sales, Sales Strategy, Sales Process, Sales, Sales Development, Business Communication, Outside Sales, Consumer Behaviour, Customer Service
★ 5 (21) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Lean Manufacturing, Lean Methodologies, Continuous Improvement Process, Production Process, Industrial Engineering, Operational Efficiency, Manufacturing Operations, Manufacturing and Production, Process Improvement, Emerging Technologies, Manufacturing Processes, Robotics, Control Systems, Robotic Process Automation, Automation, Waste Minimization, Resource Utilization
★ 4.4 (22) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Prompt Patterns, Generative AI, Prompt Engineering Tools, Prompt Engineering, AI literacy, Google Cloud Platform, Large Language Modeling, Cloud API, Cloud Computing
★ 4.3 (15) · Beginner · Project · Less Than 2 Hours