Zohreh Zahedi

Leiden University | LEI · Center for Science and Technology Studies

An extensive analysis of the presence of different altmetric indicators provided by Altmetric.com across scientific fields is presented, particularly focusing on their relationship with citations. Our results confirm that the presence and density of social media altmetric counts are still very low and not very frequent among scientific publications...

This methods report illustrates the relevance of Mendeley readership as a tool for research assessment. Readership indicators offer new possibilities to inform the evaluation of publications and outputs either poorly covered in citation indexes (e.g. non-English language outputs, Global South publications, Social sciences and humanities), or typica...

Altmetric’s mission is to help others understand the influence of research online.We collate what people are saying about published research in sources such as the mainstream media, policy documents, social networks, blogs, and other scholarly and non-scholarly forums to provide a more robust picture of the influence and reach of scholarly work. Al...

This paper presents a fine-grained overview of the usage behavior and topics of interest of different types of users in Mendeley. The analysis is based on 1.2 million Web of Science indexed publications published in 2012. The disciplinary differences in the reading (saving) patterns of different types of Mendeley users are identified and depicted u...

This chapter approaches, both from a theoretical and practical perspective, the most important principles and conceptual frameworks that can be considered in the application of social media metrics for scientific evaluation. We propose conceptually valid uses for social media metrics in research evaluation. The chapter discusses frameworks and uses...

The data collection and reporting approaches of four major altmetric data aggregators are studied. The main aim of this study is to understand how differences in social media tracking and data collection methodologies can have effects on the analytical use of altmetric data. For this purpose, discrepancies in the metrics across aggregators have bee...

Extracts of methodological descriptions from Social Media platforms and Altmetric aggregators. (PDF)

Examples of records in Mendeley with incorrect PMIDs. (PDF)

Excerpt of the JSON file from CrossRef ED recording 315 Wikipedia mentions for an object with DOI: 10.1371.journal.pone.0105090). (PDF)

List of DOIs and their social media metrics used in this study: https://doi.org/10.6084/m9.figshare.6061262.v1. (XLSX)

In this paper we present a first large-scale analysis of the relationship between Mendeley readership and citation counts with particular documents bibliographic characteristics. A data set of 1.3 million publications from different fields published in journals covered by the Web of Science (WoS) has been analyzed. This work reveals that document t...

This study presents a large scale analysis of the distribution and presence of Mendeley readership scores over time and across disciplines. We study whether Mendeley readership scores (RS) can identify highly cited publications more effectively than journal citation scores (JCS). Web of Science (WoS) publications with DOIs published during the peri...

In this study we have investigated the relationship between different document characteristics and the number of Mendeley readership counts, tweets, Facebook posts, mentions in blogs and mainstream media for 1.3 million papers published in journals covered by the Web of Science (WoS). It aims to demonstrate that how factors affecting various social...

Scientific research revolves around the production, analysis, storage, management, and re-use of data. Data sharing offers important benefits for scientific progress and advancement of knowledge. However, several limitations and barriers in the general adoption of data sharing are still in place. Probably the most important challenge is that data s...

Leiden University Rankings 2016: a multidimiontial perspective of scientifc performance of the universitites in the world By Zohreh Zahedi PhD researcher at CWTS, Leiden University, The Netherlands Lecturer at Persian Gulf university, Bushehr, Iran

This paper presents a preliminary study of the diversity and typology of users and uses around scholarly outputs in blogs and news sites as tracked by Altmetric.com. The top 100 blogs and top 100 news websites in terms of mentioning publications, for which their URLs are available, have been considered for a deeper analysis. The identified sources...

In this study, the academic status of users of scientific publications in Mendeley is explored in order to analyse the usage pattern of Mendeley users in terms of subject fields, citation and readership impact. The main focus of this study is on studying the filtering capacity of Mendeley readership counts compared to journal citation scores in det...

Purpose – The purpose of this paper is to analyze the disciplinary orientation of scientific publications that were mentioned on different social media platforms, focussing on their differences and similarities with citation counts. Design/methodology/approach – Social media metrics and readership counts, associated with 500,216 publications and t...

In this study, the presence and distribution of both Mendeley readerships and Web of Science citations for the publications published in the 43 Iranian international journals indexed in Journal Citation Reports have been investigated. The aim was to determine the impact, visibility and use of the publications published by the Iranian international...

In this paper an analysis of the presence and possibilities of altmetrics for bibliometric and performance analysis is carried out. Using the web based tool Impact Story, we collected metrics for 20,000 random publications from the Web of Science. We studied both the presence and distribution of altmetrics in the set of publications, across fields,...

This paper analyzes Altmetric.com, one of the most important altmetric data providers currently used. We have analyzed a set of publications with DOI number indexed in the Web of Science during the period 2011-2013 and collected their data with the Altmetric API. 19% of the original set of papers was retrieved from Altmetric.com including some altm...

The main focus of this paper is to investigate the impact of publications read (saved) by the different users in Mendeley in order to explore the extent to which their readership counts correlate with their citation indicators. The potential of filtering highly cited papers by Mendeley readerships and its different users have been also explored....

In this paper an analysis of the presence and possibilities of altmetrics for bibliometric and performance analysis is carried out. Using the web based tool Impact Story, we collected metrics for 20,000 random publications from the Web of Science. We studied both the presence and distribution of altmetrics in the set of publications, across fields,...

The online reference manager tool Mendeley (http://www.mendeley.com/) is one of the most promising tools for altmetrics research (Li, Thelwall and Giustini, 2011;Wouters & Costas, 2012) and it has been already used in other previous studies, for example in Library and Information Science Journals (Bar-Ilan et al., 2012b), for Nature and Science jou...

The online reference manager tool Mendeley (http://www.mendeley.com/) is one of the most promising tools for altmetrics research (Li, Thelwall and Giustini, 2011;Wouters & Costas, 2012) and it has been already used in other previous studies, for example in Library and Information Science Journals (Bar-Ilan et al., 2012b), for Nature and Science jou...

The online reference manager tool Mendeley (http://www.mendeley.com/) is one of the most promising tools for altmetrics research (Li, Thelwall and Giustini, 2011;Wouters & Costas, 2012) and it has been already used in other previous studies, for example in Library and Information Science Journals (Bar-Ilan et al., 2012b), for Nature and Science jou...

In this paper an analysis of the presence and possibilities of altmetrics for bibliometric and performance analysis is carried out. Using the web based tool Impact Story, we have collected metrics for 20,000 random publications from the Web of Science. We studied the presence and frequency of altmetrics in the set of publications, across fields, do...

This study examines the differences between Web of Science and Google Scholar in the citation counting, citation ranking of 7 Iranian’s English Journals indexed in JCR, and investigates whether there is any relationship between their impact factors, number of articles and the rate of citations they get. Furthermore, their visibility in internationa...

The World Wide Web is an important information sour for scholarly communications. Examining the inlinks via webometrics studies has attracted particular interests among information researchers. In this study, the number of inlinks to 69 ISI medical journals retrieved by Yahoo, AltaVista, and All The web Engines were examined via a comparative and W...

The present study investigates the impact of access to online databases on the document delivery services in Iranian Academic Libraries, within the framework of factors such as number of orders lodged over the years studied and their trends, expenditures made by each university, especially those universities and groups that had the highest number o...