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.

EDUCBA
Skills you'll gain: Data Lakes, Microsoft Azure, Stored Procedure, Data Architecture, Performance Tuning, Data Management, Query Languages, Data Manipulation, Scripting, SQL, Data Processing, Windows PowerShell, Microsoft Visual Studio, Command-Line Interface, Heat Maps
★ 5 (11) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apache Spark, Scala Programming, Data Processing, Big Data, Applied Machine Learning, IntelliJ IDEA, Real Time Data, Data Manipulation, Programming Principles, Graph Theory, Integrated Development Environments, Data Transformation, Development Environment, Software Development Tools, Distributed Computing, Performance Tuning
Intermediate · Course · 1 - 3 Months

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Bidding, Procurement, Business Development, Registration, Vendor Contracts, Vendor Management, New Business Development, Law, Regulation, and Compliance, Contract Management, Regulatory Requirements, Regulation and Legal Compliance
★ 4.6 (103) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Encryption, Cybersecurity, Cryptography, File I/O, Python Programming, Programming Principles, Debugging, Data Mapping, Software Testing, Data Structures
★ 4.8 (13) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Web Applications, Penetration Testing, Application Security, Security Controls, Security Testing, Vulnerability Assessments, Application Programming Interface (API), Exploitation techniques, Web Servers, Cloud Security
Intermediate · Course · 1 - 4 Weeks

Tel Aviv University
Skills you'll gain: Social Justice, Economics, Policy, and Social Studies, Socioeconomics, Tax, Economic Development, Tax Planning, Economics, Public Policies, Income Tax, Ethical Standards And Conduct, Policy Analysis, Environmental Policy, Resource Allocation
★ 4.7 (392) · Mixed · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud Deployment, Google Cloud Platform, Application Deployment, Cloud Development, Cloud Applications, Serverless Computing, Cloud-Based Integration, Event Monitoring, Cloud Platforms, Cloud Storage, Cloud Management, System Monitoring
Beginner · Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Data Import/Export, Health Informatics, Cloud API, Google Cloud Platform, Health Information Management, Data Store, Health Technology, Cloud-Based Integration, Medical Imaging, Cloud Computing, Application Programming Interface (API), Data Modeling
Beginner · Project · Less Than 2 Hours
University of Illinois Urbana-Champaign
Skills you'll gain: Financial Reporting, Inventory Accounting, Financial Statement Analysis, Depreciation, Cash Control, Financial Statements, Financial Accounting, Fixed Asset, Balance Sheet, Generally Accepted Accounting Principles (GAAP), Accounting, Cost Accounting, Inventory Control Systems, Accounts Receivable, Internal Controls, Capital Expenditure, Equities, Inventory Management System, Investments
★ 4.7 (231) · Intermediate · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Experimentation, Statistical Analysis, Statistical Methods, Statistical Hypothesis Testing, Variance Analysis, Data Analysis, Statistical Modeling
★ 4.8 (83) · Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Apache Hadoop, Apache Spark, Big Data, Amazon Web Services, Business Intelligence, Command-Line Interface, Data-Driven Decision-Making, Data Processing, Analytics
★ 4.7 (7) · Beginner · Course · 1 - 4 Weeks

Princeton University
Skills you'll gain: Risk Analysis, Systems Thinking, World History, International Relations, Risk Management, Systems Analysis, Social Network Analysis, International Finance, Financial Systems, Infectious Diseases, Public Health, Public Health and Disease Prevention, Governance, Epidemiology, Crisis Management, Complex Problem Solving, Economics, Supply Chain
★ 4.7 (451) · Beginner · Course · 1 - 3 Months