Abstract: In some embodiments, a linguistic application exploits a linguistic knowledgebase (LKB) including, among others, lexicon data, inflection form data, and syntax data for a natural language such as English or Romanian. The application employs a set modules including a word retriever, a form generator, and a syntax checker, which are interconnected to perform a number of higher-level text-processing operations such as synthetic and analytic annotation, lemmatizing, spell checking, and grammar checking.

Abstract: In some embodiments, linguistic knowledge bases including multiword lexicon entries belonging to various natural languages are generated and maintained. Multiword lexicon entries include representations of multiword expressions (e.g. composite words such as “expectation value”, verbal phrases such as “to stumble upon”, and idiomatic phrases such as “to hit the nail on the head”), and multiword inflection templates (e.g. “more adjective” as a symbolic representation for the comparative form of adjectives). A representation of a multiword lexicon entry, including a dependency tree and/or an attribute-value tree, is displayed within a graphical user interface, allowing a user to verify, update, and correct lexical data. Computer-readable encodings (e.g. XML) of dependency tree and/or attribute-value tree data are saved as part of each lexicon entry.