Introducting scite, Inciteful, and Research Rabbit

How do you know if an article was withdrawn or retracted?  What if you  could determine if citations were supporting, contrasting, or simply  mentioned for an article?  How do you assess the connections between two  or more research papers to find similar research articles?  With  advances in machine learning and artificial intelligence combined with  open access and data initiatives, new tools have been developed/released  in the last five years which will change how we find and evaluate  resources as well as connect interdisciplinary research.