Avaliação de características que influenciam nos votos de utilidade de opiniões sobre serviços em português

The large number of opinions generated by online users made the former “word of mouth” find its way to virtual world. In addition to be numerous, many of the useful reviews are mixed with a large number of fraudulent, incomplete or duplicate reviews. However, how to find the features that influence on the number of votes received by an opinion and find useful reviews? The literature on opinion mining has several studies and techniques that are able to analyze of properties found in the text of reviews. This paper presents the application of a methodology for evaluation of usefulness of opinions with the aim of identifying which characteristics have more influence on the amount of votes: basic utility (e.g. ratings about the product and/or service, date of publication), textual (e.g.size of words, paragraphs) and semantics (e.g., the meaning of the words of the text). The evaluation was performed in a database extracted from TripAdvisor with opinionsabout hotels written in Portuguese. Results show that users give more attention to recent opinions with higher scores for value and location of the hotel and with lowest scores for sleep quality and service and cleanliness. Texts with positive opinions, small words, few adjectives and adverbs increase the chances of receiving more votes.

A influência política na gestão das empresas estatais à luz do direito fundamental à boa administração e da governança corporativa e pública

This study is dedicated to explain the extent to which political influence in the management of state-owned enterprises can be considered legitimate in the light of the fundamental right to good governance and corporate and public governance, for which was undertaken bibliographical and documentary research guided by the deductive method of work, in which were investigated and presented concepts and issues relating to the State, Government, politics, Public Administration, constitutional principles of Public Administration, the fundamental right to good administration, corporate and public governance and state enterprises. Based on the assumptions found in the works and consulted laws it was possible to conclude that the political influence in state-owned enterprises management can be considered legitimate in the light of the fundamental right to good governance if it promotes the public interest and the public purposes achievement, effectively, efficiently and if it preserves the citizens' rights and the principles and rules that make up the legal framework for public administration; and can be considered legitimate in the light of corporate and public governance to the extent that, in a transparent manner and according to the relevant rules, it seeks not the private benefit of politicians, but to promote the public interest or, in other words, the increase of public value produced by them, while protecting and guaranteeing the rights of its stakeholders and shareholders.