Constructing Temporal Networks of OSS Programming Language Ecosystems

One of the primary factors that encourage developers to contribute to open source software (OSS) projects is the collaborative nature of OSS development. However, the collaborative structure of these communities largely remains unclear, partly due to the enormous scale of data to be gathered, processed, and analyzed. In this work, we utilize the World Of Code dataset, which contains commit activity data for millions of OSS projects, to build collaboration networks for ten popular programming language ecosystems, containing in total over 290M commits across over 18M projects. We build a collaboration graph representation for each language ecosystem, having authors and projects as nodes, which enables various forms of social network analysis on the scale of language ecosystems. Moreover, we capture the information on the ecosystems' evolution by slicing each network into 30 historical snapshots. Additionally, we calculate multiple collaboration metrics that characterize the ecosystems' states. We make the resulting dataset publicly available, including the constructed graphs and the pipeline enabling the analysis of more ecosystems.Comment: Accepted to SANER 202

The great recession and group-based control : converting personal helplessness into social class ingroup trust and collective action

Economic crises can threaten individuals’ sense of control. At the same time, these crises often result in collective responses, such as class-based protest (e.g., the 99%), but also nationalism or xenophobia. We investigated how personal consequences of economic crises lead to both intragroup and intergroup responses and the role of control for these effects. Studies 1 and 2 show that personal income and fear of economic descent reduce people's personal control, which, in turn, fosters hostile interethnic attitudes (Study 1), and in-group trust toward one's own social class (Study 2). Study 3 tests the combined effect of personal control and salience of collective economic identity in an experimental field study in Germany and Spain. For Spanish participants, control deprivation increased collective efficacy when national economic identity was salient, which, in turn, increased collective action intentions. We discuss the conditions under which crisis-induced threat to personal control elicits collective responses and the consequences for intergroup relations, including across class lines