keelerepresentatsiooni

Keelerepresentatsiooni (Estonian for language representation) refers to how language is encoded and represented in cognitive systems and computational models. It encompasses phonological, morphological, syntactic, and semantic information that constitutes mental or artificial structures used to store and manipulate language. In cognitive theory, representations are the internal structures that enable language processing and learning. In computational linguistics and natural language processing, keelerepresentatsiooni denotes how language data are encoded for algorithms and models.

Historically, two broad approaches exist: symbolic representations such as feature structures and parse trees; and distributed representations that encode linguistic information as high-dimensional vectors learned from data. Modern work often combines both in hybrid architectures. In cognitive linguistics and psycholinguistics, researchers study mental representations through experiments, reaction times, priming, and neuroimaging evidence, while in NLP they study how representations support tasks such as parsing, translation, and information extraction.

Common representation types include symbolic grammars, phonemic inventories, and structured-semantic forms; and statistical embeddings such as static word vectors and contextualized embeddings from transformer models. Multilevel representations integrate information from phonology, morphology, syntax, semantics, and discourse, sometimes with alignment across levels.

Applications include speech recognition, machine translation, sentiment analysis, search, and chat systems. Challenges include cross-linguistic variation, polysemy, context dependence, data sparsity for low-resource languages, interpretability, and evaluating the quality of representations. The field continues to evolve with advances in neural language models, cross-lingual representations, and multimodal integration, raising questions about cognitive plausibility, data efficiency, and ethical considerations.