» Generating resources for Opinion Analysis in Spanish

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PhD: Mª Dolores Molina González

Directed by: M. Teresa Martín Valdivia

Abstract: Many problems trying to solve Sentiment Analysis (SA) being the classification of the polarity of the most established tasks aimed at determining the polarity of a document, phrase or characteristic (positive or negative) and to measure the degree of this polarity expressed in these texts by the author. For the classification of opinions in texts written in languages ​​other than English language resources required target languages ​​which are scarce or non-existent is. This fact is increasingly pressing as expeditiously grows creation, contribution and consumption data by online users in other languages ​​other than English. For these circumstances the development of this thesis whose main objective is to generate new resources for AS in Spanish, third language more relevant web 2.0.con intends to prove it is necessary for the development and integration of linguistic resources adapted the domain and the Spanish will contribute to the improvement of the classification systems of polarity.

» Challenges in Sentiment Analysis

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Salud María Jiménez Zafra

» Opinion Analysis in Spanish

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PhD: Eugenio Martinez Chamber

Directed by L. Alfonso Ureña López, M. Teresa Martín Valdivia

Abstract: The choice of purchasing a product or service by a person is influenced by the opinions of their trusted environment. Internet, particularly since the publication of the first portals based on the Web 2.0 concept has allowed the circle of trust is extended to members of a particular publishing reviews website. This has caused the number of views that a person may have to make a decision is very high, and even difficult to make a decision before such a volume of information. The opinions posted online are not only useful for those who are about to purchase a product or service, but also for companies that offer such products or services. For a firm knowledge of the customer feedback is the best feedback they may have.

The first conclusion of the previous paragraph is that an automatic analysis system reviews, to identify and classify subjective texts, is necessary. The aim of the thesis is to study the various techniques that can be applied to solve this problem. Moreover, considering the paucity of research in this task with texts in Spanish, the study focuses on the Spanish language.

The results are being achieved can be found in the works of the student.