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Chapter 4. CORPÓGRAFO V.4 65minology, or re-combine a selection of academic articles from several subjectdomains, in order to study the stylistic and syntactic aspects of the genre);– Align parallel corpora;– Store multimedia files, e.g., sound files for pronunciation, or images to relateto lexical or terminological items;– Register the names of different users for group work.The Pesquisa (Corpus analysis) area allows the use of the personally selected corporato:– Search for concordances using regular expressions;– Search for concordances using the NooJ resources (in English, French andPortuguese – see http://www.nooj4nlp.net/).The concordances can be viewed as whole sentences or as KWIC concordances ofup to 15 words each side, including the usual left or right sorting functions.5.2 Creating terminological and lexical / phrasal databasesThe next section is called the Centro de Conhecimento (Knowledge centre) andnow contains two types of database, BD Terminológicas (terminology databases)and BD Fraseológicas (phrasal databases) for the management of words andphrases. The databases have much in common, but certain aspects are specific tothe analysis required.In both cases, the first thing one must do is create a database and supply thenecessary metadata. Several different databases can be created if one so wishes, buteach database is designed to be multilingual so that links can be made between thedata on presumed equivalents between languages.The next step is to extract information from the corpora and enter it in thedatabase. The information extracted from corpora automatically brings with it themetadata (authors and sources) of the texts in which it was found. The databasesall allow for the insertion of information on morphology, definitions, contexts(examples taken from concordances), lexical or semantic relations, related termsor expressions, translation equivalents, and links to any relevant multimedia files.The differences between the two types of database are in the methods of extractingterms and lexical expressions from the corpora and in ways of classifyingthe results.The terminology databases allow one to:– Extract terminological units using an n-gram tool with automatic lexicalsearch restrictions for Portuguese (PT), English (EN), French (FR), Italian(IT) and Spanish (ES);