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Sentiment Analysis on Twitter Data for Portuguese Language
TLDR
This work presents an study on Sentiment Analysis on Twitter data for the Portuguese language. Expand
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Construction of a Portuguese Opinion Lexicon from multiple resources
TLDR
Opinion Lexicons are linguistic resources annotated with semantic orientation of terms (positive and negative) and are important for opinion min- ing tasks. Expand
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Open Information Extraction Based on Lexical-Syntactic Patterns
TLDR
This paper describes a novel Open IE approach that performs unsupervised extraction of triples by applying a few lexical-syntactic patterns to POS-tagged texts. Expand
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Open information extraction based on lexical semantics
TLDR
The paper describes an open extractor elaborated from the belief that it is not necessary to have an enormous list of patterns or several types of linguistic labels to better perform Open IE. Expand
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Entity-centric Sentiment Analysis on Twitter data for the Potuguese Language
TLDR
We propose and evaluate a modular entity-centric Sentiment Analysis method over Twitter data for the Portuguese language. Expand
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Extraction and Classification of Semantic Data from Twitter
TLDR
This work presents different approaches for extracting and processing information from Twitter using Natural Language Processing (NLP) and Machine Learning techniques, examining tools and methods to collect and analyze semantic information from Tweets. Expand
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PIRPO: An Algorithm to Deal with Polarity in Portuguese Online Reviews from the Accommodation Sector
TLDR
This paper presents the algorithm Polarity Recognizer in Portuguese (PIRPO) to classify sentiment in online reviews. Expand
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Multilingual Open Information Extraction: Challenges and Opportunities
TLDR
A multilingual approach can enhance OIE methods as it is ideal to evaluate and compare OIE systems, and therefore can be applied to the collected facts. Expand
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Choices that make you chnage your mind : a dynamic epistemic logic approach to the semantics of BDI agent programming languages
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Dynamic Preference Logic as a Logic of Belief Change
TLDR
This work investigates how Dynamic Preference Logic, a logic in the DEL family, can be used to characterise properties of dynamic belief change operators, focusing on well-known postulates of iterated belief change. Expand
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