Articles

This study introduces an approach to estimate the uncertainty in bibliometric indicator values that is caused by data errors. This approach utilizes Bayesian regression models, estimated from empirical data samples, which are used to predict error-free data. Through direct Monte Carlo simulation—drawing many replicates of predicted data from the estimated regression models for the same input data—probability distributions for indicator values can be obtained which provide the information on their uncertainty due to data errors. [...]

The presence or absence of publishers in large bibliographic databases highlights tangible and symbolic differences between small and large publishers, underlining their diverging incentive structures. To assess these differences, this contribution explores reference data from small (open access) publishers and their journals in the Web of Science and Scopus. The analysis focuses on references that are not indexed in these databases and examines them from a text-as-data approach. The study frames two dimensions of relevance - visibility and impact - as proxies for assessing the scholarly bibliodiversity represented by small (open access) publishers.

Place is an important factor influencing international student mobility (ISM). However, few studies have comprehensively examined the role of place in ISM. This special issue intends to narrow this gap by considering the role of place in ISM from different perspectives. The articles contributing to the special issue discuss three dimensions of place, namely the physical characteristics of place, the meanings and valuations of place, and social inequalities associated with place. The special issue highlights several theoretical, methodological, and empirical avenues to further advance research on the role of place in ISM.

The number of researchers' publications is a widely used proxy measure for scientific output, individual achievement, and performance. Despite well-known criticism from the bibliometric community, the use of bibliometric databases as a basis for measuring publication output is widespread. At the same time, there are established survey instruments that also measure the publication output per researcher. We use survey-bibliometric matching with Scopus publication records to compare the alternative publication counts. A Scopus author ID match could be found for 70 % of the respondent researchers. The number of publications per researcher varies greatly between these data sources. [...]

The citations to open access preprint versions of papers and citations to papers in journals translated to English are not regularly counted in major proprietary citation index databases or in ordinary bibliometric research assessment even though they arguably reflect a true part of a work’s scientific impact. Here we explore the extent of these phenomena using Web of Science data.