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cs.DB2021
HADAD: A Lightweight Approach for Optimizing Hybrid Complex Analytics Queries (Extended Version)
Rana Alotaibi, Bogdan Cautis, Alin Deutsch +1
Hybrid complex analytics workloads typically include (i) data management tasks (joins, selections, etc. ), easily expressed using relational algebra (RA)-based languages, and (ii)…
cs.DB2012
Answering Queries using Views over Probabilistic XML: Complexity and Tractability
Bogdan Cautis, Evgeny Kharlamov
We study the complexity of query answering using views in a probabilistic XML setting, identifying large classes of XPath queries -- with child and descendant navigation and predic…