New version of VOSviewer software released

Nees Jan van Eck info at VOSVIEWER.COM
Mon Jan 24 13:19:15 EST 2011

Dear colleagues,

A new version of the VOSviewer software for bibliometric mapping has been
released. The software can be freely downloaded at
Compared with earlier versions of the software, important changes and
additions include a new clustering technique, support for drawing lines
between items, new file formats, optimized screenshots, support for rotating
and flipping maps, and a redesign of various parts of the user interface.

The VOSviewer software and the underlying mapping and clustering techniques
are documented in the following publications:
VOSviewer software:
VOS mapping technique:
Unified framework for mapping and clustering:

We welcome any feedback on this project.

Best regards,

Nees Jan van Eck
Ludo Waltman

Nees Jan van Eck MSc

Centre for Science and Technology Studies
Leiden University
P.O. Box 905
2300 AX Leiden
The Netherlands

Willem Einthoven Building, Room B5-35
Tel:      +31 (0)71 527 6445
Fax:      +31 (0)71 527 3911
E-mail:   ecknjpvan at

More information about the SIGMETRICS mailing list