LX-Gram is a grammar for the computational processing of Portuguese. It is being developed under the following major design features: - precision: it is a precision grammar delivering accurate, linguistically grounded information of natural language sentences - deep processing: it is a gram...

LX-DepParser is a free online service for the syntactic analysis of Portuguese. It allows the automatic parsing of sentences in Portuguese in terms of the grammatical functions of their words. This service was developed and is maintained at the University of Lisbon by the NLX-Speech and Natural ...

Yake! (Campos et al. 2020) is a novel feature-based system for multi-lingual keyword extraction, which supports texts of different sizes, domain or languages. Unlike most of the systems, Yake! does not rely on dictionaries nor thesauri, neither is trained against any corpora. Instead, we follow a...

The present tool, that was built to deal with specific issues concerning orthographic conventions adopted for Portuguese, marks sentence boundaries with <s>…</s>, and paragraph boundaries with <p>…</p>. Unwraps sentences split over different lines. A f-score of 99.94% was obtained when testing o...

The OntoLP system is a plug-in for the construction environment of the ontologies Protégé. The plug-in intents to be an assistant for the engineer of ontologies for Portuguese during the execution of initial steps concerning the ontologies construction: extraction of terms which are candidates fo...

This tool performs tokenization of text and assigns all possible morphological analyses to each token. These analyses include the base form of the token, part-of-speech, information about number and gender. The morphological analyser is a module of Apertium machine translation system. The provide...

Web service created by exporting UIMA-based workflow from the U-Compare text mining system. Functionality: Identifies tokens in plain text and assigns parts-of-speech Tools in workflow: MLRS POS Tagger web service (University of Malta) NOTE: The licence provided covers the web service only. To...

VISTA@UE-SA is a freely available on-line service for the sentiment analysis of short sentences (tweets) in Portuguese. This service was developed and is maintained at the University of Evora by the VISTA - Video, Image, Speech, and Text Analysis Group of the Department of Informatics.

LX-Suite is a freely available online service for the shallow processing of Portuguese. It was developed and is maintained by the NLX-Natural Language and Speech Group at the University of Lisbon, Department of Informatics. LX-Suite is composed by a set of shallow processing tools: - LX Sente...

A language identifier for closely related languages.