Events Calendar

AI Seminar-Experiences with Opinion Mining in the Brazilian Election Scenario: beyond twitters and products reviews

Speaker: Karin Becker, UFRGS

Talk Title: Experiences with Opinion Mining in the Brazilian Election Scenario: beyond twitters and products reviews

Series: Artificial Intelligence Seminar

Abstract: Opinion mining aims at automatically identifying opinionative content in documents available in the web, and determine the sentiment, perception or attitude of the public with regard to the target of the opinion. Product reviews and tweets are popular sources of opinions, well explored by existing works. This talk describes some of our experiences in handling newspapers readers’ comments written in Portuguese, using the Brazilian elections scenario. More specifically, we focus on the challenges of mining user-generated content in Portuguese, a language for which tools and resources are scarce; sentiment-based prediction of the variation on vote intentions and aspect-based sentiment mining in unstructured opinion sources. These are important contributions towards a more general framework that is able to blend opinions from several different sources to find representativeness of the target population, and make more reliable sentiment-based applications.



Biography: Karin Becker is an Associate Professor at the Computer Science Institute of Universidade Federal do Rio Grande do Sul (UFRGS) since 2010. She received a Ph.D. degree in Computer Science from the Facultés Universitaires Notre-Dame de la Paix (Belgium), and a M.Sc. degree from UFRGS (Brazil), and currently she is a visiting scholar at ISI- USC. Her research background involves both the academia and industry, mainly in the areas of database, data and web mining and software engineering. Her current interests are focused on the application of data mining techniques to web-related data (opinion mining, web services, social networks, linked data). She is also an enthusiastic of agile practices. She has near 100 published papers, including articles in journals and conference proceedings, and book chapters. She served as chairperson and member of program committee in several conferences.

Host: Craig Knoblock

Location: Information Science Institute (ISI) - 11th Flr Conf Rm # 1135, Marina Del Rey

Audiences: Everyone Is Invited

Contact: Peter Zamar