National Research University – Higher School of Economics

About: National Research University – Higher School of Economics is a education organization based out in Moscow, Russia. It is known for research contribution in the topics: Population & Politics. The organization has 12873 authors who have published 23376 publications receiving 256396 citations.

Fuzzy and rough formal concept analysis: a survey

Abstract: Formal Concept Analysis (FCA) is a mathematical technique that has been extensively applied to Boolean data in knowledge discovery, information retrieval, web mining, etc. applications. During the past years, the research on extending FCA theory to cope with imprecise and incomplete information made significant progress. In this paper, we give a systematic overview of the more than 120 papers published between 2003 and 2011 on FCA with fuzzy attributes and rough FCA. We applied traditional FCA as a text-mining instrument to 1072 papers mentioning FCA in the abstract. These papers were formatted in pdf files and using a thesaurus with terms referring to research topics, we transformed them into concept lattices. These lattices were used to analyze and explore the most prominent research topics within the FCA with fuzzy attributes and rough FCA research communities. FCA turned out to be an ideal metatechnique for representing large volumes of unstructured texts.

Imperial nostalgia or prudent geopolitics? Russia's efforts to reintegrate the post-Soviet space in geopolitical perspective

Abstract: After stagnating throughout most of the 1990s and 2000s, Russia's efforts to reintegrate the post-Soviet space are finally gathering momentum. According to President Vladimir Putin, Russia's goal is to establish a Eurasian Economic Union “capable of becoming one of the poles in a future multi-polar world.” Most existing studies see Russia's imperial and post-Soviet legacies as the driving forces behind these efforts. Although they offer valuable insights, these studies fail to explain the timing of Russia's push for deeper regional integration. This article examines these developments from a geopolitical perspective and compares Eurasian regionalism with the regional integration projects of other great powers (more specifically, Brazil and Mercosur/Unasur and China and ASEAN+1). All three efforts are occurring at a time when the international system is in flux and the ability of the USA and other Western powers to deliver key global collective goods is being called into question. Regional integration must...

COVID-19 Vaccine Acceptance and Hesitancy in Low and Middle Income Countries, and Implications for Messaging

Abstract: We analyze COVID-19 vaccine acceptance across 15 survey samples covering ten low- and middle-income countries (LMICs) in Asia, Africa, and South America, Russia (an upper-middle-income country), and the United States, using survey responses from 44,260 individuals. We find considerably higher willingness to take a COVID-19 vaccine in LMIC samples (80% on average) compared to the United States (65%) and Russia (30%). Vaccine acceptance was primarily explained by an interest in personal protection against COVID-19, while concern about side effects was the most commonly expressed reason for reluctance. Health workers were the most trusted sources of information about COVID-19 vaccines. Our findings suggest that prioritizing vaccine distribution to LMICs should yield high returns in promoting global immunization coverage, and that vaccination campaigns in these countries should focus on translating acceptance into uptake. Messaging highlighting vaccine efficacy and safety, delivered by healthcare workers, may be most effective in addressing remaining hesitancy.

Testing and Extending Schwartz Refined Value Theory Using a Best-Worst Scaling Approach.

Abstract: The theory of human values discriminated 10 basic values arrayed in a quasicircular structure. Analyses with several instruments in numerous samples supported this structure. The refined theory of ...