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Datasets, working papers, and peer-reviewed articles produced by MultiObs researchers.

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  1. Article2026
    Beyond counting tweets: An exploration of scholarly conversations on Twitter(opens in a new tab)

    Shen, Yan; Dudek, Jonathan; Costas, Rodrigo

    Funded by China Scholarship Council

    Academic discussions on Twitter have increased over the past decade. This study analyzes ca. 1.3 million scholarly conversations on Twitter, examining their temporal evolution, topical distribution, and associated publications. The results show a steady growth in the number of scholarly conversations, accompanied by rising proportions of longer and multi‐topic conversations. The visibility of different disciplines and topics varies significantly, with popular themes often closely related to societal events. By comparing topic co‐occurrence networks in Twitter conversations with co‐citation networks in scholarly literature, the study reveals both commonalities and differences in topic structures across academic and non‐academic communication contexts. Moreover, publications that appear in multiple conversations are associated with higher citation counts, suggesting a potential link between conversational engagement and scholarly impact. These findings highlight that the feature of conversations on social media has value not only for refining indicators of scholarly attention and influence beyond simple mention counts, but also to capture more broadly how research is disseminated online.

  2. Conference Paper2026Open Access
    Cognitive Proximity in a Hierarchical World: From Local Collaboration to Limited Global Brokerage(opens in a new tab)

    Borges, Luís; Mazoni, Alysson

    This paper examines the relative importance of cognitive proximity and geographical distance in shaping scientific collaboration, using Brazil as a large-scale empirical case in the Global South. Based on OpenAlex data (2010–2024), we estimate a gravity model showing that, although geographical distance negatively affects collaboration, cognitive proximity is a stronger predictor of scientific interaction. To complement this analysis, we examine the structure of international collaboration among the 23 countries with the highest number of publications. The results reveal persistent hierarchical patterns, with intermediation concentrated in a few dominant hubs. While countries such as Brazil have expanded their scientific output and international collaboration, their brokerage capacity remains limited. These findings suggest a pattern of 'concentrated deconcentration', in which increasing cognitive alignment facilitates collaboration over longer distances and scientific production becomes more geographically distributed, while brokerage capacity and structural influence remain concentrated in a limited set of countries.