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cs.DB2020
Answer Graph: Factorization Matters in Large Graphs
Zahid Abul-Basher, Nikolay Yakovets, Parke Godfrey +2
Our answer-graph method to evaluate SPARQL conjunctive queries (CQs) finds a factorized answer set first, an answer graph, and then finds the embedding tuples from this. This appro…
cs.DB2020
Discovering Domain Orders through Order Dependencies
Reza Karegar, Melicaalsadat Mirsafian, Parke Godfrey +4
Much real-world data come with explicitly defined domain orders; e.g., lexicographic order for strings, numeric for integers, and chronological for time. Our goal is to discover im…