We propose query optimization techniques that fully utilize the advantages ojpath indexes in object-oriented database systems. Although path indexes provide an eficient access to complex objects, little research has been done on query optimization that fully utilize path indexes. We first devise a generalized index intersection technique, adapted to the structure of the path index extended from...

BACKGROUND Ultrafiltration for heart failure may reduce costs associated with acute heart failure by decreasing rehospitalization rates compared to intravenous diuretics. METHODS AND RESULTS We developed a decision-analytic model to explore the clinical outcomes and associated costs of ultrafiltration compared to intravenous diuretics for index and subsequent acute heart failure hospitalizati...

We propose query optimization techniques that fully utilize the advantages of path indexes in object-oriented database systems. Although path indexes provide an eecient access to complex objects, little research has been done on query optimization that fully utilize path indexes. We rst devise a generalized index intersection technique, adapted to the structure of the path index extended from c...

background: the burden of obesity and diet-related chronic diseases is increasing in iran, and prevention and treatment strategies are needed to address this problem. the aim of this study was to determine the outcome, cost, safety and cost-consequence of non-invasive weight loss interventions in iran.   methods: we performed a systematic review to compare non-invasive interventions (cryolipoly...

And recall that the INDEX model has the lower bound for deterministic communication complexity: CCδ(INDEX) ≥ I(M ;X|R) ≥ n(1−H(δ)), where R is the shared common random string. We need a lower bound when conditioning on R for our earlier Gap-Hamming lower bound, which was a reduction from INDEX using the shared common random string R. Definition. Given (X,Y ) ∼ μ, the μ-distributional communicat...