نتایج جستجو برای: min operator
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Standard Mobius transform evaluation formula for the Choquet integral is associated with the min-aggregation. However, several other aggregation operators replacing min operator can be applied, which leads to a new construction method for aggregation operators. All binary operators applicable in this approach are characterized by the 1-Lipschitz property. Among ternary aggregation operators all...
We consider the following general optimization problem min x2≤1 −x ⊤ y + γx 1. (15) Before we proceed, we need the following lemma. Lemma 6. The solution to the optimization problem min x 1 2 (x − y) 2 + γ|x| is given by P γ (y) = 0, if |y| ≤ γ; sign(y)(|y| − γ), otherwise. where P γ (·) is the soft-thresholding operator defined in (7) (Donoho, 1995).
Equivalence of aggregate queries is investigated for the class of conjunctive queries with comparisons and the aggregate operators min, max, count, count-distinct, and sum. Essentially, this class contains all unnested SQL queries with the above aggregate operators, with a WHERE clause consisting of a conjunction of comparisons, and without a HAVING clause. The comparisons can be interpreted ov...
OBJECTIVES To determine whether quantitative wall motion assessment by CMR myocardial feature tracking (CMR-FT) would reduce the impact of observer experience as compared to visual analysis in patients with ischemic cardiomyopathy (ICM). METHODS 15 consecutive patients with ICM referred for assessment of hibernating myocardium were studied at 3 Tesla using SSFP cine images at rest and during ...
BACKGROUND Percutaneous vertebroplasty (PV) requires relatively lengthy fluoroscopic guidance, which might lead to substantial radiation exposure to patients or operators. The two-fluoroscopic technique (two-plane radiographs obtained using two fluoroscopes) during PV can provide simultaneous two-planar projections with reducing operative time. However, the two-fluoroscopic technique may expose...
-A Fuzzy Adaptive Resonance Theory (ART) model capable of rapid stable learning of recognition categories in response to arbitrary sequences of analog or binary input patterns is described. Fuzzy ART incorporates computations from fuzzy set theory into the ART 1 neural network, which learns to categorize only binary input patterns. The generalization to learning both analog and binary input pat...
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