77 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck SocietyDE3 papers
- University of Southern DenmarkDK3 papers
- University of WashingtonUS3 papers
- Centre for Demographic StudiesES2 papers
- École Polytechnique Fédérale de LausanneCH2 papers
- German Centre for Higher Education Research and Science StudiesDE2 papers
- Johns Hopkins UniversityUS2 papers
- Leiden University Medical CenterNL2 papers
- Michigan State UniversityUS2 papers
- University of California, BerkeleyUS2 papers
- University of TorontoCA2 papers
- Weierstrass Institute for Applied Analysis and StochasticsDE2 papers
21 papers
Overcoming Barriers to Computational Reproducibility
Roman Hornung, László Németh, Oleksandr Zadorozhny +13
Computational reproducibility, the possibility for independent researchers to exactly reproduce published empirical results, is fundamental to science. Despite its importance, the…
Modelling the age distribution of longevity leaders
Csaba Kiss, László Németh, Bálint Vető
Human longevity leaders with remarkably long lifespan play a crucial role in the advancement of longevity research. In this paper, we propose a stochastic model to describe the evo…
Smooth hazards with multiple time scales
Angela Carollo, Paul H. C. Eilers, Hein Putter +1
Hazard models are the most commonly used tool to analyse time-to-event data. If more than one time scale is relevant for the event under study, models are required that can incorpo…
Methodological monotheism across fields of science in contemporary quantitative research
Andres F. Castro Torres, Aliakbar Akbaritabar
The importance of research teams' diversity for the progress of science is highlighted extensively. Despite the seemingly hegemonic role of hypothesis testing in modern quantitativ…
Desaparecidxs: characterizing the population of missing children using Twitter
Carolina Coimbra Vieira, Diego Alburez-Gutierrez, Marília R. Nepomuceno +1
Missing children, i.e., children reported to a relevant authority as having "disappeared," constitute an important but often overlooked population. From a research perspective, mis…
Drewnowski's index to measure lifespan variation: Revisiting the Gini coefficient of the life table
José Manuel Aburto, Ugofilippo Basellini, Annette Baudisch +1
The Gini coefficient of the life table is a concentration index that provides information on lifespan variation. Originally proposed by economists to measure income and wealth ineq…
Identifying hidden coalitions in the US House of Representatives by optimally partitioning signed networks based on generalized balance
Samin Aref, Zachary P. Neal
In network science, identifying optimal partitions of a signed network into internally cohesive and mutually divisive clusters based on generalized balance theory is computationall…
Is there a cap on longevity? A statistical review
Léo R. Belzile, Anthony C. Davison, Jutta Gampe +2
There is sustained and widespread interest in understanding the limit, if any, to the human lifespan. Apart from its intrinsic and biological interest, changes in survival in old a…
Incorporating delayed entry into the joint frailty model for recurrent events and a terminal event
Marie Böhnstedt, Jutta Gampe, Monique A. A. Caljouw +1
In studies of recurrent events, joint modeling approaches are often needed to allow for potential dependent censoring by a terminal event such as death. Joint frailty models for re…
A study of referencing changes in preprint-publication pairs across multiple fields
Aliakbar Akbaritabar, Dimity Stephen, Flaminio Squazzoni
Manuscripts have a complex development process with multiple influencing factors. Reconstructing this process is difficult without large-scale, comparable data on different version…
Berlin: A Quantitative View of the Structure of Institutional Scientific Collaborations
Aliakbar Akbaritabar
This paper examines the structure of scientific collaborations in a large European metropolitan area. It aims to identify strategic coalitions among organizations in Berlin as a sp…
Scholarly migration within Mexico: Analyzing internal migration among researchers using Scopus longitudinal bibliometric data
Andrea Miranda-González, Samin Aref, Tom Theile +1
The migration of scholars is a major driver of innovation and of diffusion of knowledge. Although large-scale bibliometric data have been used to measure international migration of…
Combining social media and survey data to nowcast migrant stocks in the United States
Monica Alexander, Kivan Polimis, Emilio Zagheni
Measuring and forecasting migration patterns, and how they change over time, has important implications for understanding broader population trends, for designing policy effectivel…
Towards a data-driven characterization of behavioral changes induced by the seasonal flu
Nicolò Gozzi, Daniela Perrotta, Daniela Paolotti +1
In this work, we aim to determine the main factors driving behavioral change during the seasonal flu. To this end, we analyze a unique dataset comprised of 599 surveys completed by…
Detecting coalitions by optimally partitioning signed networks of political collaboration
Samin Aref, Zachary Neal
We propose new mathematical programming models for optimal partitioning of a signed graph into cohesive groups. To demonstrate the approach's utility, we apply it to identify coali…
Shifting attention to old age: Detecting mortality deceleration using focused model selection
Marie Böhnstedt, Hein Putter, Nadine Ouellette +2
The decrease in the increase in death rates at old ages is a phenomenon that has repeatedly been discussed in demographic research. While mortality deceleration can be explained in…
The threshold age of Keyfitz' entropy
José Manuel Aburto, Jesús-Adrián Alvarez, Francisco Villavicencio +1
BACKGROUND Indicators of relative inequality of lifespans are important because they capture the dimensionless shape of aging. They are markers of inequality at the population leve…
The human longevity record may hold for decades
Adam Lenart, José Manuel Aburto, Anders Stockmarr +1
Since 1990 Jeanne Louise Calment has held the record for human longevity. She was born on 21 February 1875, became the longest-lived human on 12 May 1990 when she was 115.21 and di…
Mater certa est, pater numquam: What can Facebook Advertising Data Tell Us about Male Fertility Rates?
Francesco Rampazzo, Emilio Zagheni, Ingmar Weber +2
In many developing countries, timely and accurate information about birth rates and other demographic indicators is still lacking, especially for male fertility rates. Using anonym…
Professional Gender Gaps Across US Cities
Karri Haranko, Emilio Zagheni, Kiran Garimella +1
Gender imbalances in work environments have been a long-standing concern. Identifying the existence of such imbalances is key to designing policies to help overcome them. In this w…
Consequences of coarse grained Vlasov equations
Klaus Morawetz, Rainer Walke
The Vlasov equation is analyzed for coarse grained distributions resembling a finite width of test-particles as used in numerical implementations. It is shown that this coarse grai…