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.

Board Infinity
Skills you'll gain: C# (Programming Language), ASP.NET, .NET Framework, Object Oriented Programming (OOP), Object Oriented Design, Application Frameworks, Web Applications, Programming Principles, Web Development, Event-Driven Programming
★ 4.1 (309) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, Command-Line Interface, Open Shortest Path First (OSPF), Network Monitoring, Virtual Local Area Network (VLAN), Virtual Networking, Border Gateway Protocol, Network Security, Network Performance Management, Enterprise Architecture, Virtualization, Network Architecture, Network Routing, Wireless Networks, Network Planning And Design, Infrastructure Security, Ansible, Network Infrastructure, General Networking, IT Automation
★ 4.5 (11) · Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Sampling (Statistics), Bayesian Statistics, Probability & Statistics, Statistical Inference, Statistical Methods, Statistics, Probability, Probability Distribution, Data Analysis, Statistical Analysis, Biostatistics, Statistical Hypothesis Testing, R Programming
★ 4.4 (544) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Artificial Intelligence and Machine Learning (AI/ML), Model Training, Digital Transformation, Artificial Intelligence, Business Transformation, Cloud Solutions, Responsible AI, Business Intelligence, AI literacy, Data Ethics, Data Quality, Machine Learning, Natural Language Processing, Model Deployment, Applied Machine Learning, Cloud API, Data Analysis, Application Programming Interface (API)
★ 4.6 (10) · Beginner · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Oral Comprehension, Literacy, Vocabulary, Language Competency, Grammar, Language Learning
★ 4.8 (284) · Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: AWS SageMaker, Data Preprocessing, Computer Vision, Machine Learning Methods, AI Workflows, Machine Learning Algorithms, Applied Machine Learning, Natural Language Processing, Machine Learning, Data Wrangling, Amazon Web Services, Reinforcement Learning, Deep Learning, Artificial Intelligence, Model Training, Amazon Elastic Compute Cloud, Model Deployment, Amazon S3, Serverless Computing
★ 4.4 (9) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, MITRE ATT&CK Framework, Penetration Testing, Incident Response, Cyber Threat Hunting, Cybersecurity, Cyber Threat Intelligence, DevSecOps, Digital Forensics, Cloud Security, Patch Management, Cyber Security Assessment, Exploitation techniques, Network Security, Computer Security Incident Management, Disaster Recovery, Cryptography, Incident Management, Responsible AI, DevOps
Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Flutter (Software), UI Components, Mobile Development, Google Cloud Platform, User Interface (UI), Application Development, Cross Platform Development, Web Development, Network Security
★ 4.1 (15) · Beginner · Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Linear Algebra, Integral Calculus, Algebra, Numerical Analysis, Calculus, Graphing, Applied Mathematics, Data Science, Mathematics and Mathematical Modeling, Data Analysis, Data Modeling, Statistical Methods, Probability & Statistics, Derivatives, Mathematical Theory & Analysis
★ 4.5 (479) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Intune (Mobile Device Management Software), Endpoint Security, Cyber Security Policies, Microsoft Windows, Enterprise Security, Mobile Security, Endpoint Detection and Response, Operating System Administration, Security Management, Android (Operating System), Patch Management, Microsoft Azure, System Configuration, System Monitoring, Vulnerability Management, Virtual Private Networks (VPN), Apple iOS, Remote Access Systems, Configuration Management
★ 4.9 (12) · Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: NoSQL, Data Warehousing, Database Systems, Database Theory, Relational Databases, Database Management, Extract, Transform, Load, SQL, Databases, Data Mining, Database Development, Business Intelligence, Database Application, Database Management Systems, Big Data, Information Systems, Database Design, MongoDB, Scalability, Database Software
★ 4.3 (699) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Power Electronics, Thermal Management, Electrical Safety, Electrical Power, Building Codes, Electric Power Systems, Electronic Systems, Electrical Equipment, Electrical Systems, Embedded Software, Electronic Components, Energy and Utilities, Basic Electrical Systems, Sustainable Technologies, Automation, Environmental Issue, Environment and Resource Management, Environmental Regulations, Environmental Engineering and Restoration, Geospatial Information and Technology
★ 4.2 (285) · Intermediate · Specialization · 1 - 3 Months