QS World University Rankings is an annual publication of university rankings by Quacquarelli Symonds (QS). Previously known as Times Higher Education–QS World University Rankings, the publisher had collaborated with Times Higher Education magazine (THE) to publish its international league tables from 2004 to 2009 before both started to announce their own versions. QS then chose to continue using the pre-existing methodology while Times Higher Education adopted a new methodology to create their rankings.