Combining Overall and Target Oriented Sentiment Analysis over Portuguese Text from Social Media
Journal Title: Transactions on Machine Learning and Artificial Intelligence - Year 2015, Vol 3, Issue 3
Abstract
This document describes an approach to perform sentiment analysis on social media Portuguese content. In a single system, we perform polarity classification for both the overall sentiment, and target oriented sentiment. In both modes we train a Maximum Entropy classifier. The overall model is based on BoW type features, and also features derived from POS tagging and from sentiment lexicons. Target oriented analysis begins with named entity recognition, followed by the classification of sentiment polarity on these entities. This classifier model uses features dedicated to the entity mention textual zone, including negation detection, and the syntactic function of the target occurrence segment. Our experiments have achieved an accuracy of 75% for target oriented polarity classification, and 97% in overall polarity.
Authors and Affiliations
José Saias, Ruben Silva, Eduardo Oliveira
Keywords
Related Articles
- EP ID EP278880
- DOI 10.14738/tmlai.33.1297
- Views 76
- Downloads 0
Comparison Performance Evaluation of Modified Genetic Algorithm and Modified Counter Propagation Network for Online Character recognition
This paper carries out performance evaluation of a Modified Genetic Algorithm (MGA) and Modified Counter Propagation Network (MCPN) Network for online character recognition. Two techniques were used to train the feature...
Combining Overall and Target Oriented Sentiment Analysis over Portuguese Text from Social Media
This document describes an approach to perform sentiment analysis on social media Portuguese content. In a single system, we perform polarity classification for both the overall sentiment, and target oriented sentiment....
Technical Data Extraction and Representation in Expert CAPP System
Computeraided process planning (CAPP) is an essential interface for linking design and manufacturing processes, the purpose of CAPP is to transform a part design specification obtained from CAD system into a sequence of...
Wide Band Patch Antenna using Defect Ground Structure Optimizing by Genetic Algorithm
The patch antenna is widely used in our life for a lot of its strong points as a low cost, easy and simple fabricated structure, and a code characteristic in radiation profile. But the narrow bandwidth is, however, the m...
Psychological and Physiological Profiles in Oncology Caregivers: a Multivariable Cross-Sectional Study
Scientific research has led to enhanced medical assistance, and hence higher disease control and a continuous lifespan dilation. However, research mainly focusses on the patient’s condition, and, in some cases, caregiver...