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: Statistical Inference, Statistical Methods, Statistics, Probability & Statistics, Statistical Analysis, Sampling (Statistics), Applied Mathematics, Probability Distribution, Probability, Artificial Intelligence
Build toward a degree
Intermediate · Course · 1 - 3 Months

Fractal Analytics
Skills you'll gain: Model Context Protocol, AI Security, AI Integrations, Threat Modeling, Context Engineering, Enterprise Architecture, Generative AI Agents, Security Engineering, Context Management, Interoperability, Agentic systems, Generative AI
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Data Mining, Text Mining, Unstructured Data, Data Analysis, Exploratory Data Analysis, Data Visualization, Data Preprocessing, Data Presentation, Data Visualization Software, Model Evaluation, Natural Language Processing, Technical Writing, Algorithms
Mixed · Course · 1 - 3 Months

Skills you'll gain: Command-Line Interface, Unix Shell, Unix Commands, Unix, Linux, File Management, Linux Commands, File Systems, File I/O, Systems Architecture
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Ubuntu, Package and Software Management, Bash (Scripting Language), Linux Servers, Linux Administration, Unix, Linux, Shell Script, Unix Shell, Server Administration, Operating System Administration, Scripting, Linux Commands, Systems Administration, User Accounts, Servers, System Monitoring, User Provisioning, Command-Line Interface, Hardening
Intermediate · Course · 1 - 3 Months

Icahn School of Medicine at Mount Sinai
Skills you'll gain: Surgery, Perioperative Care, Chronic Diseases, Operating Room (OR), Acute Care, Diagnostic Tests, Patient Evaluation, Medical Management, Infectious Diseases, Anatomy, Pathology, Clinical Practices, Pharmacotherapy, Immunology
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Data Presentation, Data Processing, Big Data, Apache Spark, Splunk, Data Analysis, Unstructured Data, Analytics, Data Wrangling, Data Infrastructure, Social Network Analysis, Network Analysis, Classification Algorithms
Mixed · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Responsible AI, Machine Learning Methods, Data Ethics, Artificial Intelligence, Machine Learning Algorithms, Generative AI, AI Product Strategy, Machine Learning, AI literacy, Artificial Intelligence and Machine Learning (AI/ML), Applied Machine Learning, OpenAI, Anthropic Claude, Supervised Learning, AI Integrations, Market Intelligence, ChatGPT, Emerging Technologies, Deep Learning, Human Factors
Beginner · Course · 1 - 3 Months

Skills you'll gain: Incident Management, Incident Response, Security Management, Computer Security Incident Management, Cybersecurity, Cyber Security Policies, Remote Access Systems, Telecommuting, Cyber Security Assessment, Cyber Security Strategy, Security Controls, Security Strategy, Security Software, Employee Engagement
Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Network Security, Role-Based Access Control (RBAC), Cybersecurity, Firewall, Network Monitoring, Authentications, Virtual Private Networks (VPN), Authorization (Computing), Intrusion Detection and Prevention, Identity and Access Management, Security Controls, Encryption, Group Policy
Beginner · Course · 1 - 3 Months

Skills you'll gain: Wireless Networks, Network Planning And Design, Cloud Management, Network Infrastructure, Network Architecture, Networking Hardware, General Networking, Identity and Access Management, Network Monitoring, Network Troubleshooting, System Configuration, Role-Based Access Control (RBAC), Capacity Management, User Accounts
Intermediate · Course · 1 - 4 Weeks
Emory University
Skills you'll gain: Social Media Analytics, Social Media Marketing, Social Media, Marketing Analytics, Social Media Management, Customer Analysis, Consumer Behaviour, Data Mining, Customer Insights, Market Analysis, Data Analysis Software, Trend Analysis, Research, Peer Review
Mixed · Course · 1 - 4 Weeks