NLP (Natural Language Processing) is the field of AI focused on understanding, interpreting and generating human language, in text and, by extension, in speech. It covers tasks from the simple (extracting entities such as dates, amounts, names) to the complex (translation, summarisation, sentiment analysis). Until a few years ago, NLP solutions were typically task-specific; today, generalist LLMs cover many tasks with similar or superior quality.
In a corporate context, NLP appears in: automatic classification of emails and tickets, extraction of structured data from unstructured documents (invoices, contracts), sentiment analysis in customer or employee feedback, content translation, and semantic internal search engines. In Portuguese, NLP evolved later than in English — today there is similar quality but there are still pitfalls with dialects and idioms.
Document Management by INFOS applies NLP for cognitive classification — it reads invoices in Portuguese and extracts key fields with accuracy above 95% in typical cases. NLP runs on on-premises infrastructure or in a European cloud depending on the customer's regulatory context. For customers with larger documentation volumes, it is one of the AI cases with the clearest ROI.