Out-of-vocabulary entities refer to words or terms that are not present in a predefined vocabulary or lexicon used by natural language processing systems. These entities can include proper nouns, neologisms, or specialized jargon that the system has not encountered during its training. Dealing with out-of-vocabulary entities is crucial for effective named entity recognition, as it directly impacts the accuracy and completeness of information extraction processes.
congrats on reading the definition of out-of-vocabulary entities. now let's actually learn it.