Oh, indeed! I just checked: the English definition focuses on "a reference book that is to be kept handy, at hand, no matter what size", the German definition of "Handbuch", which false-friended me, requires it aim to be "knapp", i.e. concise. My bad! Thanks for making me learn something today
A colleague of mine had an interesting approach recently, that combined document and graph RAG-gish ideas (over Wikipedia and Wikidata respectively) for search: https://arxiv.org/abs/2501.11301
Luna Dong (Meta, ex-Amaxon and Google), Aidan Hogan (University of Santiago de Chile), Gerhard Weikum (MPI, Yago) and I published a paper on LLMs, Knowledge Graphs, and Search Engines - https://arxiv.org/abs/2501.06699
One issue we had was that HDT wasn't great in supporting dynamic KGs, which changed often, because it needed a complete recalculation, IIRC. For reasonably static datasets this sounds like a good efficient way.
