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03/31/2023
How to measure research performance of single scientists? A proposal for an index based on scientific prizes: The Prize Winner Index (PWI)
In this study, we propose a new index for measuring excellence in scienc...
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06/28/2022
Comparison of metadata with relevance for bibliometrics between Microsoft Academic Graph and OpenAlex until 2020
Microsoft Academic Graph (MAG) has been studied a lot concerning its sui...
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06/24/2022
Identification of young talented individuals in the natural and life sciences using bibliometric data
Identification of young talented individuals is not an easy task. Citati...
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05/06/2022
Revolutions in science: The proposal of an approach for the identification of most important researchers, institutions, and countries based on Reference Publication Year Spectr
RPYS is a bibliometric method originally introduced in order to reveal t...
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01/12/2022
Empirical analysis of recent temporal dynamics of research fields: Annual publications in chemistry and related areas as an example
Changes in the number of publications in a certain field might reflect t...
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12/08/2021
Scores of a specific field-normalized indicator calculated with different approaches of field-categorization: Are the scores different or similar?
Usage of field-normalized citation scores is a bibliometric standard. Di...
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09/02/2021
Reference Publication Year Spectroscopy (RPYS) in practice: A software tutorial
In course of the organization of Workshop III entitled "Cited References...
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08/25/2021
Report on Workshop III "Cited References Analysis Using CRExplorer" at the 18th International Conference of the International Society for Scientometrics and Informetrics (ISSI2
We have organized Workshop III entitled "Cited References Analysis Using...
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06/25/2021
Heat Waves – a hot topic in climate change research
Research on heat waves (periods of excessively hot weather, which may be...
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05/18/2021
Quantum technology 2.0 – topics and contributing countries from 1980 to 2018
The second quantum technological revolution started around 1980 with the...
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03/18/2021
Mapping the impact of papers on various status groups: A new excellence mapping tool based on citation and reader scores
In over five years, Bornmann, Stefaner, de Moya Anegon, and Mutz (2014) ...
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01/27/2021
Investigating Diffusion of Scientific Knowledge on Twitter: A Study of Topic Networks of Opioid Publications
One way to assess the value of scientific research is to measure the att...
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12/14/2020
Growth rates of modern science: A latent piecewise growth curve approach to model publication numbers from established and new literature databases
Growth of science is a prevalent issue in science of science studies. In...
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04/29/2020
Are papers addressing certain diseases perceived where these diseases are prevalent? The proposal to use Twitter data as social-spatial sensors
We propose to use Twitter data as social-spatial sensors. This study dea...
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03/25/2020
Which papers cited which tweets? An empirical analysis based on Scopus data
Many altmetric studies analyze which papers were mentioned how often in ...
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10/24/2019
Should citations be field-normalized in evaluative bibliometrics? An empirical analysis based on propensity score matching
Field-normalization of citations is bibliometric standard. Despite the o...
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06/19/2019
Paper-Patent Citation Linkages as Early Signs for Predicting Delayed Recognized Knowledge: Macro and Micro Evidence
In this study, we investigate the extent to which patent citations to pa...
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06/19/2019
Patent citations to scientific papers as early signs for predicting delayed recognition of scientific discoveries: a comparative study with instant recognition
In this study, we investigate the extent to that patent citations to pap...
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05/23/2019
Citation concept analysis (CCA) - A new form of citation analysis revealing the usefulness of concepts for other researchers illustrated by two exemplary case studies including
In recent years, the full text of papers are increasingly available elec...
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05/22/2019
R package for producing beamplots as a preferred alternative to the h index when assessing single researchers (based on downloads from Web of Science)
We propose the use of beamplots - which can be produced by using the R p...
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02/25/2019
Telling the Early Story of Solar Energy Meteorology by Applying (Co-Citation) Reference Publication Year Spectroscopy
Studying the history of research fields by analyzing publication records...
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01/25/2019
Which are the influential publications in the Web of Science subject categories over a long period of time? CRExplorer software used for big-data analyses in bibliometrics
What are the landmark papers in scientific disciplines? On whose shoulde...
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01/22/2019
Discovering seminal works with marker papers
Bibliometric information retrieval in databases can employ different str...
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10/17/2018
Does the public discuss other topics on climate change than researchers? A comparison of explorative networks based on author keywords and hashtags
Twitter accounts have already been used in many scientometric studies, b...
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10/17/2018
Does the public discuss other topics on climate change than researchers? A comparison of networks based on author keywords and hashtags
Twitter accounts have already been used in many scientometrics studies, ...
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07/12/2018
How to identify the roots of broad research topics and fields? The introduction of RPYS sampling using the example of climate change research
Since the introduction of the reference publication year spectroscopy (R...
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07/11/2018
Do altmetrics assess societal impact in a comparable way to case studies? An empirical test of the convergent validity of altmetrics based on data from the UK Research Excellen
Altmetrics have been proposed as a way to assess the societal impact of ...
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07/11/2018
Do altmetrics assess societal impact in the same way as case studies? An empirical analysis testing the convergent validity of altmetrics based on data from the UK Research Exc
Altmetrics have been proposed as a way to assess the societal impact of ...
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02/27/2018
The concordance of field-normalized scores based on Web of Science and Microsoft Academic data: A case study in computer sciences
In order to assess Microsoft Academic as a useful data source for evalua...
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02/02/2018
Allegation of scientific misconduct increases Twitter attention
The web-based microblogging system Twitter is a very popular altmetrics ...
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12/22/2017
Field- and time-normalization of data with many zeros: An empirical analysis using citation and Twitter data
Thelwall (2017a, 2017b) proposed a new family of field- and time-normali...
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12/22/2017
Field- and time-normalization of zero-inflated data: An empirical analysis using citation and Twitter data
Thelwall (2017a, 2017b) proposed a new family of field- and time-normali...
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12/06/2017
Normalization of zero-inflated data: An empirical analysis of a new indicator family and its use with altmetrics data
Recently, two new indicators (Equalized Mean-based Normalized Proportion...
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11/20/2017
Do altmetrics correlate with the quality of papers? A large-scale empirical study based on F1000Prime data
In this study, we address the question whether (and to what extent, resp...
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11/20/2017
Do bibliometrics and altmetrics correlate with the quality of papers? A large-scale empirical study based on F1000Prime, altmetrics, and citation data
Purpose: In this study, we address the question of the unclear meaning o...
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10/11/2017
The number of linked references of publications in Microsoft Academic in comparison with the Web of Science
In the context of a comprehensive Microsoft Academic (MA) study, we expl...
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09/09/2017
Algorithmically generated subject categories based on citation relations: An empirical micro study using papers on overall water splitting
One important reason for the use of field categorization in bibliometric...
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09/09/2017
Algorithmically generated subject categories based on citation relations: An empirical micro study using papers on overall water splitting and related topics
One important reason for the use of field categorization in bibliometric...
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08/15/2017
Reference Publication Year Spectroscopy (RPYS) of Eugene Garfield's publications
Which studies, theories, and ideas have influenced Eugene Garfield's sci...
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08/13/2017
Visualizing the context of citations referencing papers published by Eugene Garfield: A new type of keyword co-occurrence analysis
During Eugene Garfield's (EG's) lengthy career as information scientist,...
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07/13/2017
Plots for visualizing paper impact and journal impact of single researchers in a single graph
In research evaluation of single researchers, the assessment of paper an...
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04/07/2017