On Wednesday, March 06, 2013, a master's degree defense titled "Improving Grammar CoGrOO Broker" will be held at IME/USP. CoGrOO is a project of the FLOSS Competence Center at USP (CCSL).
Date: Wednesday, March 06, 2013.
Place: Sala 7, Bloco B do IME
Time: 14h00
CoGrOO is an open source Brazilian Portuguese grammar checker currently used by thousands of users of Apache OpenOffice and LibreOffice. It is capable of identifying Brazilian Portuguese mistakes such as pronoun placement, noun agreement, subject-verb agreement, usage of the accent stress marker, subject-verb agreement, and other common errors of Brazilian Portuguese writing. To accomplish this, it performs a hybrid analysis; initially it annotates the text using statistical Natural Language Processing (NLP) techniques, and then a rule-based check is performed to identify possible grammar errors.
The aim of this study was to analyze and improve the system's machine learning components, maximizing the effectiveness of the grammar checker. In other words, to reduce the amount of omissions, and increase the number of true positives without adding new rules for error detection.
NLP components that make use of machine learning in the system are:
* Sentence detector and tokenizer;
* Name and contraction finders;
* POS tagger, chunker and shallow parser
Below details about the applicant, the location and the examination board:
Title: Aprimorando o Corretor Gramatical CoGrOO.
Candidate: William Daniel Colen de Moura Silva
Advisor: Prof. Dr. Marcelo Finger
Date: Wednesday, March 06, 2013.
Place: Sala 7, Bloco B do IME
Time: 14h00
Examination board
Members:
Prof. Dr. Marcelo Finger (IME-USP)
Prof. Dr. Alfredo Goldman Vel Lejbman (IME-USP)
Prof. Dr. Marcos Fernando Lopes (FFLCH-USP)
Alternate members:
Prof. Dr. Flávio Soares Corrêa da Silva (IME-USP)
Profa. Dra. Renata Wassermann (IME-USP)
Profa. Dra. Sandra Maria Aluizio (ICMC-USP)