Which of the following is NOT a function of Cognitive AI applications?

Cognitive AI applications are designed to mimic human abilities in processing information and performing tasks that typically require human intelligence, such as understanding natural language, recognizing patterns, and making decisions.

Speech recognition involves translating spoken words into text, allowing devices to interact with users more intuitively. Face detection is a computer vision task that identifies and locates human faces in images or videos, which can enhance security and user experience in various applications. Risk assessment involves analyzing data to determine the potential risks in provided scenarios, helping businesses and organizations make informed decisions.

Data encryption, however, is a security measure used to protect information by encoding it so that only authorized parties can access it. While encryption is crucial for data security, it does not fall within the scope of what cognitive AI applications are designed to do, as it does not involve the human-like cognitive processes that characterize AI applications in the other areas mentioned.