نتایج جستجو برای: indexes
تعداد نتایج: 22875 فیلتر نتایج به سال:
This paper describes how to implement a documentation technique that helps readers to understand large programs or collections of programs, by providing local indexes to all identifiers that are visible on every two-page spread. A detailed example is given for a program that finds all Hamiltonian circuits in an undirected graph.
Most queries to text search engines are ranked or Boolean. Phrase querying is a powerful technique for refining searches, but is expensive to implement on conventional indexes. In other work, a nextword index has been proposed as a structure specifically designed for phrase queries. Nextword indexes are, however, relatively large. In this paper we introduce new compaction techniques for nextwor...
bstract: Air and surface freezing and thawing indexes and prediction of round temperatures from air temperatures were investigated. A new method for pplying n factors on a daily basis to capture localized temperature extremes is resented and compared to conventional seasonal n-factor analysis. Measured air emperatures from five locations and measured air and surface temperatures from ne locatio...
Reliability of heart rate variability in healthy older women at rest and during orthostatic testing.
BACKGROUND AND AIMS In the older population, the reliability of heart rate variability (HRV) has only been evaluated in a few studies, in the supine position, and covering a broad sample of age and patients of both sexes. To document the relevance of using HRV analysis in healthy older women, the aim of this study was to evaluate the reliability of HRV indexes during three classical tests. ME...
In the world of Relational Database Management Systems (RDBMS) indexes are used to accelerate specific queries. The selection of indexes is an important task in database-tuning which is performed by a database administrator or an index selection tool which suggests a set of suitable indexes. In this paper we transfer the concept of specific indexes to XML Database Management Systems (XDBMS) and...
The goal of this paper is to measure the financial performance of 21 primary Clean Techs (CT) equity indexes, covering the primary energy markets worldwide. We use a modified state-space market model to recursively estimate the risk/return performance of each index, and two market benchmarks are considered, thus providing a more accurate picture of the financial outcomes of investing in these r...
OBJECTIVE To compare some anthropometric indexes of obesity and identify among them which one best discriminates the high coronary risk (HCR). METHODS A cross-section study, with sample consisting of 968 adults, between 30 and 74 years old, being 391 (40.4%) men. Many Receiver Operating Characteristic (ROC) curves were obtained and compared to areas under them among the conicity index (C inde...
AIM It has been recently shown that the original BODE index has a high degree of correlation with two modified BODE indexes using maximal oxygen uptake expressed either as mL/min/kg (mBODE) or as the percentage predicted (mBODE%). In this study we investigated the agreement between the two modified BODE indexes (mBODE and mBODE%) in patients with stable chronic obstructive pulmonary disease (CO...
CONTEXT Methods to directly measure insulin resistance are invasive, complex, and costly. Surrogate indexes derived from the oral glucose tolerance test (OGTT) have been developed, but few studies have systematically analyzed these indexes. OBJECTIVE We examined the relation of surrogate and direct measures of insulin resistance to metabolic variables. DESIGN AND SETTING We conducted a cros...
assessing financial performance is one of the most important in functional domains, because financial information is considered for the basis of making decisions. organizations use various indexes for assessing performance in quantitative techniques. although these sorts of assessments provide useful information, but the comprehensive concept will never be concluded because of considering all t...
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