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.

Johns Hopkins University
Skills you'll gain: Big Data, Apache Hadoop, Data Infrastructure, Data Processing, Analytics, Data Science, Data Architecture, Distributed Computing, Linux, Software Installation, Scalability, System Configuration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Vulnerability Scanning, Network Security, Penetration Testing, Configuration Management, System Configuration, Firewall, Linux Commands, Servers, Command-Line Interface, TCP/IP, Network Analysis, Software Versioning
Intermediate · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Computational Logic, Theoretical Computer Science, Graph Theory, Network Analysis, Logical Reasoning, Deductive Reasoning, Geospatial Information and Technology, Computational Thinking, General Mathematics, Algebra, Mathematics and Mathematical Modeling, Informatics, Computer Science
Beginner · Course · 3 - 6 Months

Skills you'll gain: Sales Territory Management, B2B Sales, Regional Sales, Selling Techniques, Sales Management, Consultative Selling, Sales, Sales Strategy, Market Analysis, Sales Process, Market Intelligence, Closing (Sales), Customer Relationship Management (CRM) Software, Competitive Intelligence, Customer Relationship Management, Negotiation
Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Web Services, Cloud Management, Identity and Access Management, Event Monitoring, Cloud Security, Security Strategy, Incident Response, Computer Security Incident Management, Continuous Monitoring, Anomaly Detection
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Security Testing, Penetration Testing, Vulnerability Scanning, Data Security, Application Security, Vulnerability Assessments, Personally Identifiable Information, Data Loss Prevention, Web Applications, Web Servers, SQL
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Control Systems, Computer Vision, Image Analysis, Robotics, Machine Controls, Automation, Embedded Software, Simulations, Simulation and Simulation Software, Systems Architecture, Virtual Environment, Software Architecture, Predictive Modeling, Computer Hardware, Estimation
Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, User Interface (UI), Leaflet (Software), Data Processing, Interactive Data Visualization, Scientific Visualization, Big Data, Visualization (Computer Graphics), Geospatial Mapping, Data Manipulation, Data Transformation, Apache Spark, Spatial Data Analysis, Computer Graphics
Mixed · Course · 1 - 3 Months

Skills you'll gain: Azure Active Directory, Identity and Access Management, Microsoft Azure, Disaster Recovery, Virtual Machines, Active Directory, Role-Based Access Control (RBAC), Virtual Networking, Virtualization and Virtual Machines, Enterprise Application Management, User Provisioning, Windows Servers, Application Deployment, Cloud Security, Data Storage Technologies, Cloud Infrastructure, User Accounts, IT Infrastructure, Cloud Storage, File Management
Intermediate · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Amazon Web Services, Security Software, Cloud Management
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Probability & Statistics, Statistical Analysis, Statistics, Data Literacy, Data Visualization, Statistical Hypothesis Testing, Statistical Visualization, Descriptive Statistics, Data Analysis, Analytics, Statistical Methods, Histogram, Plot (Graphics), Probability, Simulations, Probability Distribution, Correlation Analysis, Statistical Inference, Estimation, Sampling (Statistics)
Beginner · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Local Area Networks, Network Protocols, Network Administration, TCP/IP, Wireless Networks, General Networking, Network Architecture, Network Infrastructure, System Configuration, Computer Networking
Mixed · Course · 1 - 4 Weeks