94 citations
- Fudan UniversityCN3 papers
- Montana State UniversityUS2 papers
- Universidad Nacional de ColombiaCO2 papers
- University of AveiroPT2 papers
- University of TübingenDE2 papers
- Colegio de Estudios Superiores de AdministraciónCO1 paper
- Pontificia Universidad JaverianaCO1 paper
- University of Illinois Urbana-ChampaignUS1 paper
7 papers
Machine learning for assessing quality of service in the hospitality sector based on customer reviews
Vladimir Vargas-Calderón, Andreina Moros Ochoa, Gilmer Yovani Castro Nieto +1
The increasing use of online hospitality platforms provides firsthand information about clients preferences, which are essential to improve hotel services and increase the quality…
Modeling uncertainties in X-ray reflection spectroscopy measurements II: Impact of the radiation from the plunging region
Alejandro Cardenas-Avendano, Menglei Zhou, Cosimo Bambi
X-ray reflection spectroscopy is a powerful tool to probe the strong gravity region around black holes, but the available relativistic reflection models have a number of simplifica…
Characterization of citizens using word2vec and latent topic analysis in a large set of tweets
Vargas-Calderón Vladimir, Camargo Jorge
With the increasing use of the Internet and mobile devices, social networks are becoming the most used media to communicate citizens' ideas and thoughts. This information is very u…
Experimental Relativity with Accretion Disk Observations
Alejandro Cardenas-Avendano, Jaxen Godfrey, Nicolas Yunes +1
Electromagnetic observations have been used over the past decades to understand the nature of black holes and the material around them. Our ability to learn about the fundamental p…
Iron K line of boson stars
Zheng Cao, Alejandro Cardenas-Avendano, Menglei Zhou +3
The present paper is a sequel to our previous work [Y. Ni et al., JCAP 1607, 049 (2016)] in which we studied the iron K line expected in the reflection spectrum of Kerr black ho…
Ideological Consumerism in Colombian Elections, 2015: Links between Political Ideology, Twitter Activity and Electoral Results
Juan C. Correa, Jorge Camargo
Propagation of political ideologies in social networks has shown a notorious impact on voting behavior. Both the contents of the messages (the ideology) and the politicians' influe…