Natural language input refers to the use of human-generated language, expressed through speech or text, as an input modality for computational systems to process, interpret, or transform into machine-understandable representations [1]. Within natural language processing, natural language input consists of linguistic data that are not constrained to predefined formal grammars or machine-specific command structures but instead reflect the variability, ambiguity, and contextual dependencies of human communication [2]. Processing natural language input involves computational methods that analyze linguistic features, extract meaningful representations, and support tasks such as language understanding, generation, or interaction between humans and computer systems [3]. The concept is distinct from structured input formats, such as database queries or programming languages, which follow explicitly defined syntactic rules designed for direct computational execution [1].
Natural Language Processing Techniques • Artificial Intelligence • Computer Science • Physical Sciences