Knowledge graphs are a type of knowledge representation technology that captures complex relationships between entities and concepts in a structured form. They are a graph-based data model that represents knowledge in a semantic way, linking entities together with relationships to form a network of interconnected data points. Knowledge graphs are used in various applications such as semantic search, question answering, recommendation systems, and natural language processing. They allow for more efficient and accurate information retrieval, as well as enabling machines to understand and process data in a more human-like way. Overall, knowledge graphs provide a powerful tool for organizing and accessing structured information, making it easier to navigate and understand complex datasets.