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View article: Behavioral response to mobile phone evacuation alerts
Behavioral response to mobile phone evacuation alerts Open
This study examines behavioral responses to mobile phone evacuation alerts during the February 2024 wildfires in Valparaíso, Chile. Using anonymized mobile network data from 580,000 devices, we analyze population movement following emergen…
View article: Evacuation patterns and socioeconomic stratification in the context of wildfires in Chile
Evacuation patterns and socioeconomic stratification in the context of wildfires in Chile Open
Climate change is altering the frequency and intensity of wildfires, leading to increased evacuation events that disrupt human mobility and socioeconomic structures. These disruptions affect access to resources, employment, and housing, am…
Unveiling the silent majority: stance detection and characterization of passive users on social media using collaborative filtering and graph convolutional networks Open
Social Media (SM) has become a popular medium for individuals to share their opinions on various topics, including politics, social issues, and daily affairs. During controversial events such as political elections, active users often proc…
Bridging Qualitative Data Silos: The Potential of Reusing Codings Through Machine Learning Based Cross-Study Code Linking Open
For qualitative data analysis (QDA), researchers assign codes to text segments to arrange the information into topics or concepts. These annotations facilitate information retrieval and the identification of emerging patterns in unstructur…
The social stratification of internal migration and daily mobility during the COVID-19 pandemic Open
This study leverages mobile phone data for 5.4 million users to unveil the complex dynamics of internal migration and daily mobility in Santiago de Chile during the global COVID-19 pandemic, with a focus on socioeconomic differentials. Maj…
Stance Inference in Twitter through Graph Convolutional Collaborative Filtering Networks with Minimal Supervision Open
Social Media (SM) has become a stage for people to share thoughts, emotions, opinions, and almost every other aspect of their daily lives. This abundance of human interaction makes SM particularly attractive for social sensing. Especially …
Stance Inference in Twitter through Graph Convolutional Collaborative Filtering Networks with Minimal Supervision Open
Social Media (SM) has become a stage for people to share thoughts, emotions, opinions, and almost every other aspect of their daily lives. This abundance of human interaction makes SM particularly attractive for social sensing. Especially …
Migration Reframed? A multilingual analysis on the stance shift in Europe during the Ukrainian crisis Open
The war in Ukraine seems to have positively changed the attitude toward the critical societal topic of migration in Europe – at least towards refugees from Ukraine. We investigate whether this impression is substantiated by how the topic i…
Stance Inference in Twitter through Graph Convolutional Collaborative Filtering Networks with Minimal Supervision Open
Social Media (SM) has become a stage for people to share thoughts, emotions, opinions, and almost every other aspect of their daily lives. This abundance of human interaction makes SM particularly attractive for social sensing. Especially …
Migration Reframed? A multilingual analysis on the stance shift in Europe during the Ukrainian crisis Open
The war in Ukraine seems to have positively changed the attitude toward the critical societal topic of migration in Europe -- at least towards refugees from Ukraine. We investigate whether this impression is substantiated by how the topic …
My EU = Your EU? Differences in the Perception of European Issues Across Geographic Regions Open
Our perception of the situation in a country or a region is strongly influenced by the reflection of this situation in mass and social media channels. This effect is even more pronounced for geographically and culturally distant regions, f…
Migration-Related Semantic Concepts for the Retrieval of Relevant Video Content Open
Migration, and especially irregular migration, is a critical issue for border agencies and society in general. Migration-related situations and decisions are influenced by various factors, including the perceptions about migration routes a…
Power structure in Chilean news media Open
Even democracies endowed with the most active free press struggle to maintain diversity of news coverage. Consolidation and market forces may cause only a few dominant players to control the news cycle. Editorial policies may be biased by …
Understanding News Outlets' Audience-Targeting Patterns Open
The power of the press to shape the informational landscape of a population is unparalleled, even now in the era of democratic access to all information outlets. However, it is known that news outlets (particularly more traditional ones) t…
On the nature of real and perceived bias in the mainstream media Open
News consumers expect news outlets to be objective and balanced in their reports of events and opinions. However, there is a growing body of evidence of bias in the media caused by underlying political and socio-economic viewpoints. Previo…
Empirical Evaluation of a Thread-Safe Dynamic Range Min-Max Tree using HTM Open
Succinct trees, such as wavelet trees and those based on, for instance, range Min-Max trees (RMMTs), are a family of practical data structures that store information close to their information-theoretic space lower bound. These structures …