Abstract

Information visualization covers the basic functions of data storage and communication, and reasoning support; most of the recently developed visualizations include these functions. However, among these, a small subset stands out for their innovative approaches and contribution to the development of the discipline. This article will review some of the innovative visualizations developed in 2016 and organize them into three groups. On the one hand, we present a small selection of visualizations that incorporate conceptual novelties and new visual proposals. On the other hand, we show some others that have drawn attention to the importance of the data set they have visualized. Finally, we account for some of the technological advances that have been developed within the discipline throughout this year.

Abstract

Recent advances in technology have provoked changes in the information visualization discipline. This article reviews some innovative visualizations and organizes them into three groups. First, we present a small selection of visualizations that incorporate conceptual novelties and new visual proposals. Second, we show some other ones that have drawn attention to the importance of the data set they have visualized. Finally, we account for some of the technological advances that were made in 2017 within the discipline.

Abstract

2018 has been an important year for the information visualization discipline. This work reviews some of the innovative visualizations developed throughout 2018, organizing them, asd previous proposals published in this Anuario ThinkEPI, into three groups. First, a small selection of visualization with conceptual novelties and new visual proposals are presented. Second, there are some others that have drawn attention to the importance of the data set they have visualized. Finally, some of the technological advances that have been developed within the discipline throughout this year are highlighted.

Abstract

Lexical representation of information has adapted to the conditions imposed by the Web on information generation and traffic. Systems based on controlled words or terms now coexist with others that have a conceptual and therefore semantic nature. The latter have experienced a decisive progression toward concept management, as thesauri have become semantic networks made possible by domain ontologies. The challenges arise in the processing of these concepts, their associative links, and their interoperability.

Abstract

This study uses Twitter data to provide a more nuanced understanding of the public reaction to the 2011 reform to the propane gas subsidy in El Salvador. By soliciting a small sample of manually tagged tweets, the study identifies the subject matter and sentiment of all tweets during six one-month periods over three years that concern the subsidy reform. The paper shows that such an analysis using Twitter data can provide a useful complement to existing household survey data and even potentially replace survey data if none were available. The finding show that when people tweet about the subsidy, they almost always do so in a negative manner; and there is a decline in discussion of topics about the reform subsidy, which coincides with increase in support for the subsidy as reported elsewhere. Therefore, the study concludes that decreasing discussion of the subsidy reform indicates an increase in support for the reform. In addition, the gas distributor strikes of May 2011 may have contributed to public perception of the reform more than previously acknowledged. This study is used as an opportunity to provide methodological guidance for researchers who wish to undertake similar studies, documenting the steps in the analysis pipeline with detail and noting the challenges inherent in obtaining data, classification, and inference. Document type: Book