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: Operating System Administration, File Systems, Operating Systems, Authentications, Information Technology Infrastructure Library, Microsoft Windows, Linux, Linux Administration, Authorization (Computing), Desktop Support, Identity and Access Management, IT Service Management, Systems Administration, Virtualization, Virtualization and Virtual Machines, Mac OS, IT Management, Cloud Computing, Information Systems Security, User Accounts
Beginner · Course · 1 - 3 Months

Skills you'll gain: Computer Hardware, Hardware Architecture, Hardware Troubleshooting, Data Storage Technologies, System Configuration, Computer Architecture, Peripheral Devices, Computer Displays
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: AI Security, Cybersecurity, Cyber Attacks, Fraud detection, Email Security, Threat Detection, Jupyter, Authentications, Intrusion Detection and Prevention, Machine Learning Algorithms, Artificial Intelligence, Multi-Factor Authentication, Anomaly Detection, Natural Language Processing, Machine Learning, Supervised Learning
Intermediate · Course · 1 - 4 Weeks

Tel Aviv University
Skills you'll gain: Scientific Methods, Biology, Research, Biochemistry, Life Sciences, Psychology, Molecular Biology, Environment, Physiology, Cell Biology
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Customer Analysis, Customer Retention, Marketing Analytics, Customer Insights, Strategic Decision-Making, Product Strategy, Data Analysis, Product Management, Data-Driven Decision-Making, Advanced Analytics, Unsupervised Learning, Technical Documentation, Performance Measurement, Machine Learning Algorithms
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Application Deployment, Kubernetes, Virtual Machines, Platform As A Service (PaaS), Microsoft Azure, Containerization, Virtual Networking, Public Cloud, Cloud Storage, Cloud Infrastructure, Identity and Access Management, Cloud Computing, Cloud Services, Scalability
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Excel Formulas, Microsoft Excel, Microsoft Office, Spreadsheet Software, Microsoft 365, File Management, Document Management, Data Management, Productivity Software, Data Entry, Microsoft Windows, Data Import/Export, User Interface (UI)
Mixed · Course · 1 - 3 Months

Skills you'll gain: Dashboard, Web Scraping, Pandas (Python Package), Data Presentation, Data Visualization, Data Analysis, Data Processing, Data Science, Python Programming, Data Manipulation, Jupyter, Data Collection
Intermediate · Course · 1 - 4 Weeks
Google Cloud
Skills you'll gain: Gmail, Email Security, Email Automation, Productivity Software, Business Correspondence, Business Communication, Organizational Skills, Data Sharing
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Database Design, Database Management Systems, Relational Databases, Data Modeling, Database Management, Databases, SQL, Oracle Databases, MySQL, Query Languages
Intermediate · Course · 1 - 3 Months

Infosec
Skills you'll gain: Incident Response, Computer Security Incident Management, Threat Management, Incident Management, Disaster Recovery, Cyber Threat Hunting, Cybersecurity, Cyber Attacks, Cyber Threat Intelligence, Cyber Operations, Intrusion Detection and Prevention, Threat Detection, Security Management, Cyber Security Assessment, Event Monitoring, Network Security, Digital Forensics, Data Security, Business Continuity, Analysis
Beginner · Specialization · 3 - 6 Months

Logical Operations
Skills you'll gain: Web Development Tools, Web Development, Hypertext Markup Language (HTML), HTML and CSS, Web Design and Development, Web Applications, Web Design, Web Servers, Development Environment, Apache, Software Development, Web Content, Front-End Web Development, Semantic Web, Information Architecture
Mixed · Course · 1 - 4 Weeks