We produced a detailed comparison of such "fitting" and "learning" techniques, available here: https://vldb.org/pvldb/vol14/p1-marcus.pdf https://vldb.org/pvldb

We produced a detailed comparison of such "fitting" and "learning" techniques, available here: https://vldb.org/pvldb/vol14/p1-marcus.pdf https://vldb.org/pvldb/vol14/p1-marcus.pdf (Thomas Neumann, one of authors of the blog post, is a co-author of the linked paper)