Getting Started

Phytochemical-Based Drug Innovations: A Patent Landscape Study (2004–2024)

Dear VOSviewer Development Team,
I hope this message finds you well. My name is Dr. Hamid Nazaripour, and I am a faculty member at the University of Sistan and Baluchestan (Zahedan, Iran), specializing in Data Analysis.
VOSviewer is an invaluable tool for my academic research and teaching activities, particularly in visualizing bibliometric networks and analyzing scholarly data. As this software will be used strictly for non-commercial, educational purposes, I kindly request a free academic license (or extended access) to support my work and my students’ learning.
Purpose of Use:
Teaching research methodology and science mapping techniques to graduate/undergraduate students.
Supporting student theses and research projects involving bibliometric analysis.
Conducting academic research in collaboration with my department.
If required, I am happy to provide official university documentation (e.g., a letter of verification) to confirm my academic affiliation.
Thank you for considering this request. Your software significantly advances our research capabilities, and I deeply appreciate your support for the academic community.
Best regards,
Dr.Hamid Nazaripour
University of Sistan and Baluchestan, Zahedan, Iran

When using excel file from Wos for analysis i get the error not able to find author columns. I did rename the columns as formatted in text export but this only giving me one option of analysis but not co-citation analysis.

Is there a way to use VISviewer on Windows if I don't have Oracle's Java version installed? For licensing reasons, we use another Java environment (Eclipse Temurin), but VISviewer does not recognize it.

Is there a way to use VISviewer on Windows if I don't have Oracle's Java version installed? For licensing reasons, we use another Java environment (Eclipse Temurin), but VISviewer does not recognize it.

I have questions about the thesaurus file in which multiple terms can be replaced with one overarching term. Unfortunately, using the file causes all added terms to be ignored and not replaced. I used the text file that is included when installing VOSviewer, with a tab as the delimiter between the columns.
Any ideas why the terms in the "replace by" column are not being used in the analysis?
Kind regards,
Helen

1. Cambio climático y sus impactos en la biodiversidad
Subtemas:
Impactos en ecosistemas terrestres: Alteraciones en hábitats y especies.
Impactos en ecosistemas marinos: Efectos sobre la fauna y flora marina.
Adaptación y resiliencia de especies: Cómo las especies se están adaptando o extinguiendo.
Políticas ambientales y medidas de conservación: Estrategias para mitigar los efectos del cambio climático.
2. Salud mental y sus efectos en la sociedad moderna
Subtemas:
Trastornos más comunes en la sociedad actual: Depresión, ansiedad, estrés.
Impacto del trabajo y las redes sociales en la salud mental: Relación entre la vida laboral y la salud psicológica.
Enfermedades mentales y su estigmatización: Cómo se percibe a las personas con trastornos mentales.
Terapias y tratamientos efectivos: Estrategias de intervención, como terapia cognitivo-conductual y medicación.
3. La educación en tiempos de pandemia: retos y transformaciones
Subtemas:
Impacto de la educación virtual: Desafíos en el aprendizaje a distancia.
Desigualdad en el acceso a la educación: Brechas tecnológicas y económicas en la educación online.
Salud emocional de los estudiantes durante la pandemia: Cómo afectó el confinamiento a los jóvenes y su bienestar emocional.
Perspectivas futuras de la educación post-pandemia: Qué cambios perdurarán en la educación tras la crisis sanitaria.
4. Desarrollo sostenible en países en vías de desarrollo
Subtemas:
Modelos de desarrollo sostenible: Estrategias para balancear crecimiento económico y protección ambiental.
Energías renovables como alternativa: Uso de energías limpias en zonas rurales y urbanas.
Políticas públicas y su impacto en el desarrollo: Cómo las decisiones gubernamentales pueden fomentar el desarrollo sostenible.
Empresas sostenibles y responsabilidad social: Cómo las empresas implementan prácticas que promuevan el desarrollo sostenible.
5. Inteligencia artificial y ética en la tecnología
Subtemas:
Desarrollo de la inteligencia artificial: Avances y aplicaciones actuales.
Implicaciones éticas de la IA: Problemas relacionados con la privacidad, el sesgo y la autonomía de las máquinas.
El futuro del empleo en la era de la IA: Cómo los avances tecnológicos impactarán el mercado laboral.
Regulación y control de la inteligencia artificial: Desafíos para crear marcos legales y éticos para el uso de la IA.

file:///C:/Users/USUARIO%20NUEVO/Downloads/37170-Texto%20del%20art%C3%ADculo-67189-1-10-20211112.pdf

I'm running co-authorship analysis. When I load my Scopus data file and run the analysis, sometime I get a map with colored clusters and links as expected. However, sometimes I only get a map with nodes (mostly gray), and without colored clusters of authors or links. What could account for this?
Additionally, the map shows author names in two versions on the map: for example, jones, K. (correct) and jones K.; Why is the version of the nam with the semi-colon appearing?
Thanks.

I'm a macbook air arm user and i can't use vosviewer because of a java script error. how can i fix this?

Hi, I've been trying to use a CitNetExplorer network as input for VOSViewer. I managed to download pajek files from CitNetExplorer (from my network and clusters), and input those in VOSViewer. My only problem is that if I use these files as VOSViewer input, only the first author and publication year are available, and I can no longer view other information about articles nor click and open them from VOSViewer directly.
I can click and open these articles in CitNetExplorer, and when I create a map based on bibliographic data in VOSViewer, I can also click the articles and they open in my webbrowser. Just when I load the CitNetExplorer Pajek files it doesn't work. Does anyone have a solution for this? Would love to be able to open my articles from VOSViewer directly :)

Hello!
I've been having a problem for a few days and I need your help, please!
I want to perform a bibliometric analysis. If yesterday there were various errors, today I have another problem: I exported 2 files (tab delimited file) from Web of Science: 1 tab with documents from 1-500 and 1 tab with documents from 501-593. However, when I enter them in VOSviewer only 567 appear. Please, where am I wrong or what is happening? I haven't had this problem before!
Thank you!

I download txt file from Web of Science and when I upload the file on VOSviewer, I received an error message "cannot find author (AF/AU), address (C1), cited reference (CR), author keyword (DE), or Keyword plus (ID) field”.
Could you please help?

I download txt file from Web of Science and when I upload the file on VOSviewer, I received an error message "cannot find author (AF/AU), address (C1), cited reference (CR), author keyword (DE), or Keyword plus (ID) field”.
Could you please help?

gouvernance apprenante et qualité de l'éducation

Hi
Is it possible to define our own clusters? More precisely, from a WoS export, I want to illustrate the network of collaborators with a clustering of the countries per continent: Europe, America, Asia, etc.
Thanks for your answer.

Publications on applications of VOSviewer:
Codato, Adriano; Bittencourt, Maiane; Silva, Rodrigo; Perich, Rafael. Uma análise bibliométrica da recepção de Pierre Bourdieu na ciência política [A bibliometric analysis of the reception of Pierre Bourdieu’s work in political science]. Educação e Pesquisa, v. 48, p. e255565, 2022. https://doi.org/10.1590/S1678-4634202248255565por
Sampaio, Rafael; Lycarião, Diógenes; Codato, Adriano; Marioto, Djiovanni; Bittencourt, Maiane; Nichols, Bruno; Sanchez, Cristiane. Mapeamento e reflexões sobre o uso da análise de conteúdo na SciELO-Brasil (2002-2019) [Mapping and reflections on the use of content analysis in SciELO-Brazil (2002-2019)]. New Trends in Qualitative Research, v. 15, p. 1-15, 2022. https://doi.org/10.36367/ntqr.15.2022.e747
Codato, Adriano; Lorencetti, Mariana; Prata, Bruna. Elites políticas e representação: uma investigação da literatura contemporânea sobre políticos profissionais [Political elites and representation: investigating the contemporary literature on professional politicians]. Revista Brasileira de Informação Bibliográfica em Ciências Sociais - BIB, v. 1, p. 1-23, 2021. https://bibanpocs.emnuvens.com.br/revista/article/view/120
Codato, Adriano; Silva, Rodrigo; Perich, Rafael; Bittencourt, Maiane; Lorencetti, Mariana. A Scientometric Review of Global Research on Political Elites. Pléyade (Santiago), p. 56-83, 2021. https://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-36962021000200056&lng=en&nrm=iso&tlng=en
Codato, Adriano; Madeira, Rafael Machado; Bittencourt, Maiane. Political Science in Latin America: A Scientometric Analysis. Brazilian Political Science Review, v. 14, p. e0007, 2020. https://doi.org/10.1590/1981-3821202000030005
Codato, Adriano; Lorencetti, Mariana; Bittencourt, Maiane. Disseram que eu voltei americanizada: a história temática da Revista de Sociologia e Política [Tu Vuò Fà L’Americano: the thematic history of the Revista de Sociologia e Política]. Revista de Sociologia e Política, v. 28, p. e007, 2020. https://doi.org/10.1590/1678-987320287607

necesito y espero que sea una herramienta eficiente para mis búsquedas de referencias mi trabajo académico

The impact of board diversity on the bank’s financial performance

Good day VosViewer team,
Thank you for an amazing resource. I use this frequently and have found it extremely hopeful in my own research. I have only used Vos when analysing thousands of articles, whereas my question below relates to the complete opposite issue.
I have been asked to review a manuscript and I have a specific question. In the Vos 2011 Manual, it notes that Vos is particularly helpful for mapping large amounts of items (100 - 200 items). The paper I am reviewing only has 35 articles and a very small number of terms. Is Vos an appropriate tool for such a small number of articles and what are the implications for results when the number of articles is so small?
Thank you!

In VOSviewer, when we conduct an analysis based on countries, does this refer to the country of the journal, the country of the authors' affiliation, or the country of the organizations? Thank you.

I was looking at your documentation. Web of Science now allows up to 1,000 records per export. Can you please update? Page 30. Thank you.

thank you

Thanks so much for all your work on VOSviewer. I'm working with an .ris file to construct a co-authorship network of 925 citations, I’m interested in visualizing a network of not only authors (.ris tag AU) but also editors (.ris tag A2). Is this possible?

Dear Team Manager
I hope this email will find you well
I am asking your esteemed office to allow me to permit me to
download the app into my computer.
Aguer

Hello Team,
I'd like to congratulate you on such a tremendous project, I think you guys are doing great work putting this amazing software out there. I'd like to navigate this further but I've encountered a bit of a challenge using your product. After downloading it I tried to launch the app but keep getting the error message "Unable to load Java runtime environment. I downloaded the MacOS version because my laptop is a Macbook Pro 2. Please can you help me to rectify this issue?

Dear VOSviewer Support Team,
I hope this email finds you well.
I am currently using VOSviewer on my MacBook for analyzing data, but I am encountering an issue with reading CSV files. Specifically, when I upload a Scopus CSV file into VOSviewer, I consistently receive a warning message that says "incorrect use of quotes."
I would greatly appreciate your assistance in resolving this issue. Could you please provide guidance or suggestions on how to address the problem with CSV file formatting?
Thank you very much for your support.
Best regards,
Budiawan

good

Hi, I am now learning how to use VOSviewer for systematic literature review, but I encounter some issues. I download cvs file from Web of Science and remove the funding information already, but when I upload the cvs file on VOSviewer, I received an error message "cannot find author (AF/AU), address (C1), cited reference (CR), author keyword (DE), or Keyword plus (ID) field”.
Could you please help?

sou aluna do doutorado em Ciencias do Ambiente pela UFT

sou aluna do doutorado em Ciencias do Ambiente pela UFT

Hi, I'm helping a researcher with Vosviewer. She wants to get a list in csv of the references with title, author, journal, year etc. of the clusters she has produced. We try, but only succeed in getting out what is visible in the cluster, eg authors, in a text file. Is there a way to get a list of all information about the references in a cluster?
Thanks in advance!

i can t to install software into my computer. Please help me

How to analyze merged data of web of science and Scopus database on VOS Viewer, Finding error on uploading merged data file extracted from R-Biblioshiny.

I just find a great tool for doing journal review
thank you VOSviewer

It seems that there're many youtube informations on how to merge data from WoS and Scopus removing duplicates in bibliometrix to run on biblioshiny. But there's no info. on how to do exact same thing in VOSViewer!!
Can anyone help on this problem? any idea?
thanks in advance.

Hi,
I tried to upload a RIS file from a library in Scopus. However, I keep getting an error that the file contains an incorrect number of columns. I have no idea how to solve this issue. I hope someone can help?

Citations, bibliographic buttons become inactive when i upload my file for analysis.
Help me

Errer while reading wef of science file ..... (line 1) : Multiple AU fields
How to deal with this issue

I'm trying to open the AIDA booklet, but got this error page instead:
AccessDenied
Access Denied
7GSB8CSEN3DYKTAM
A0Q28sk/PX805y14iG1Wv3ZV2qWVVEXYzY9/o6LuD4V0rIiVdAAZ8nB8dvXNgeyj533Ks7pZp3E=

I installed version 1.6.20. Most features are locked and do not function! What should I do?

A good tool but it will be useful in spanish too.

我想用

(1) I am using scopus to create a map based on bibliographic data. (2) I have chosen "type of analsysis = Bibliogrpahic coupling", and "unit of analysis = Authors".
Given this, what does "clustering" mean? What is the criteria used to assign an item (an author) to a cluster?

I installed version 1.6.20. Most features are locked and do not function! What should I do?

HI,
I am working with the current version of EndNote, which does not support the export of .enw files. It can produce .enl files, .txt or .xml files. Please is it possible to import any of these formats in to VOSViewer.
Many thanks,
Chris.