Rensselaer also hosts the Tetherless World Constellation, a multidisciplinary research institution focused on theories, methods, and applications of the World Wide Web. Research is carried out in three inter-connected themes: Future Web, Semantic Foundations and Xinformatics. At Rensselaer, a constellation is a multidisciplinary team composed of senior and junior faculty members, research scientists, and postdoctoral, graduate, and undergraduate students. The faculty experts for the TWC constellation are James Hendler, Deborah McGuinness and Peter Fox. Faculty alumni of TWC includes Heng Ji (Natural Language Processing). In 2016, the Constellation received a one million dollar grant from the Bill & Melinda Gates Foundation for continuing work on a novel data visualization platform that will harness and accelerate the analysis of vast amounts of data for the foundation's Healthy Birth, Growth, and Development Knowledge Integration initiative.