Accurate Answers to Reference Queries May Be Provided Less Frequently Than Expected

Erratum: SGDQN is Less Careful than Expected

The SGD-QN algorithm described in (Bordes et al., 2009) contains a subtle flaw that prevents it from reaching its design goals. Yet the flawed SGD-QN algorithm has worked well enough to be a winner of the first Pascal Large Scale Learning Challenge (Sonnenburg et al., 2008). This document clarifies the situation, proposes a corrected algorithm, and evaluates its performance.

Review: lactulose or lactitol may improve hepatic encephalopathy but may be less effective than antibiotics.

Amount of polyhydramnios attributable to diabetes may be less than previously reported

AIM To evaluate the frequency and the quantity of polyhydramnios attributable to diabetes in pregnancy. METHODS The charts of patients with a four-quadrant amniotic fluid index (AFI) ≥ 20 cm and either a diagnosis of diabetes or a diabetes screening test during the index pregnancy were retrospectively reviewed. AFI was stratified into 5 categories and the frequency of diabetes was evaluated f...

Can Patients With Low Back Pain Be Satisfied With Less Than Expected?

STUDY DESIGN A prospective cohort study within care as usual. OBJECTIVE (1) To explore the psychometric properties of a baseline disability questionnaire designed to collect patients' expectation. (2) To analyze relations between satisfaction with care and treatment success in patients with chronic low back pain (CLBP). (3) To determine the chances of being satisfied with the received care in...

Intensional Answers to Database Queries

In addition to data, database systems store various on keys, integrity constraints, class hierarchies), are often kinds of information about their data. Examples are class hierarchies, to define the various data classes and their relationships; assumed as well, but little else is assumed. integrity constraints, to state required relationships among the Notable examples of this approach are the ...