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.

LearnKartS
Skills you'll gain: Active Listening, Verbal Communication Skills, Communication, Communication Strategies, Empathy & Emotional Intelligence, Oral Comprehension, Emotional Intelligence, Persuasive Communication, Public Speaking, Non-Verbal Communication, Business Communication, Tactfulness, Conflict Management, Relationship Management, Teamwork
★ 4.8 (96) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Relational Databases, Database Theory, Databases, Database Design, Database Software, Spreadsheet Software, Collaborative Software, Issue Tracking, Database Application, Collaboration, Cloud Computing
★ 4.2 (9) · Beginner · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Prompt Engineering, Google Gemini, Generative AI Agents, Retrieval-Augmented Generation, Gemini, Generative AI, Google Cloud Platform, Generative Model Architectures, Prompt Patterns, Agentic Workflows, AI Enablement, AI Product Strategy, Responsible AI, Google Workspace, Customer Engagement, AI Workflows, Agentic systems, Cloud Computing, Artificial Intelligence, Collaboration
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Penetration Testing, Record Keeping, Vulnerability Scanning, Security Testing, Data Management, Cloud Management, Threat Management, Cyber Security Assessment, Records Management, Cloud Computing Architecture, Authentications, Firewall, Cyber Attacks, Cybersecurity, Cyber Threat Intelligence, Authorization (Computing), Generative Adversarial Networks (GANs), Active Directory, Data Ethics, AI Security
★ 4.8 (51) · Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Cyber Governance, ISO/IEC 27001, Continuous Monitoring, Compliance Management, Cyber Risk, Cyber Security Policies, Incident Response, Cloud Security, Cybersecurity, Data Governance, Computer Security Incident Management, Cloud Management, Security Controls, Cloud Standards, Risk Management Framework, IT Management, Information Privacy, Security Awareness
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Request for Proposal, Request For Quotation (RFQ), Strategic Sourcing, Document Management, Supplier Management, Purchasing, Procurement, Business Writing, Cost Benefit Analysis, Vendor Management, Business Communication, Market Research, Cost Management, Risk Analysis, Spreadsheet Software, Workflow Management, Financial Analysis, Data-Driven Decision-Making, Contract Compliance, Data Analysis
★ 4.7 (12) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Routing Protocols, Network Security, Network Routing, TCP/IP, Network Administration, Open Shortest Path First (OSPF), Network Protocols, Network Switches, Virtual Local Area Network (VLAN), Network Monitoring, Firewall, Network Infrastructure, Network Troubleshooting, Border Gateway Protocol, Network Performance Management, Security Controls, Network Analysis, Authentications, Encryption
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Workspace, Email Automation, Google Cloud Platform, Gmail
Intermediate · Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Model Training, Model Evaluation, Tensorflow, Computer Vision, Machine Learning Methods, Development Environment, Image Analysis, Machine Learning, Deep Learning, Data Persistence, Artificial Neural Networks
★ 5 (7) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: Linux Servers, Unix Commands, Systems Administration, Unix, TCP/IP, Service Management, Network Troubleshooting, Site Reliability Engineering, Data Storage Technologies, Continuous Monitoring, IT Automation, Hardware Architecture, Software Installation, File Management
Intermediate · Course · 3 - 6 Months

Peking University
Skills you'll gain: Bioinformatics, Markov Model, Life Sciences, Molecular Biology, Molecular, Cellular, and Microbiology, Biomedical Technology, Biology, Computational Thinking, Data Mining, Algorithms, Drug Interaction, Data Processing
★ 4.8 (189) · Mixed · Course · 3 - 6 Months

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: electromagnetics, Electrical Engineering, Electrical Systems, Differential Equations, Electronic Components, Advanced Mathematics, Integral Calculus, Physics, Engineering Analysis
★ 4.8 (125) · Advanced · Course · 1 - 3 Months