Definition: A systemizer is a term used in the field of linguistics and cognitive science to describe a specific type of machine learning model or algorithm. These models are designed to perform tasks that require complex reasoning and analysis, such as natural language processing (NLP), speech recognition, and sentiment analysis. The term "systemizer" refers to someone who is skilled at designing and implementing these types of algorithms and systems. In the context of NLP, a systemizer would be responsible for developing and training models