The Learner Data Institute (LDI) is an NSF-funded "data-intensive research in science and engineering" (DIRSE) initiative seeking to set out compelling, specific, big data research challenges for educational data science researchers and large-scale scientific and data convergence approaches to address them.  Learn more about the Learner Data Institute at http://www.learnerdatainstitute.org. The Learner Data Institute is funded by the National Science Foundation (NSF; award #1934745). The opinions, findings, and results are solely the authors' and do not reflect those of NSF.