Which of the following is a type of AI Skill?

Document extraction is a type of AI skill because it involves using artificial intelligence to identify and retrieve information from documents, transforming unstructured data into structured data that can be used for further processing and analysis. This skill is essential in automating tasks where critical information needs to be extracted from large volumes of documents.

In the context of Appian and other AI implementations, document extraction can streamline processes by reducing the manual effort needed to input and manage data. It utilizes machine learning techniques to enhance accuracy over time as it processes more documents, reflecting the capability of AI to learn and improve its performance.

The other options, while related to data handling and classification, do not specifically classify as AI skills in the same manner. For instance, creating a robotic task typically involves automation processes rather than AI-driven capabilities, while both document classification and email classification are more specific applications or subsets of broader AI skills focused on sorting and categorizing information, rather than extracting it.