Analyzer · Sparsifire

Analyze how specific documents activate the features of the SAE. Select a dataset, a run and a document to begin.

Dataset

SAE Model

Document

Active Features

1497

MIN ACTIVATION

0.0

Details List

#2741 Feature 2741

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#2199 Feature 2199

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#101 Feature 101

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#220 Feature 220

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#2514 Feature 2514

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#3019 Feature 3019

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#1735 Feature 1735

#1712 Feature 1712

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#1506 Justification/Rationale for Actions

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#404 Interactions and Mechanisms

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#1575 Feature 1575

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#1711 Feature 1711

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#1919 Feature 1919

#2225 Feature 2225

#2309 Feature 2309

#1804 Feature 1804

#2124 Feature 2124

#445 Feature 445

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#2735 Feature 2735

#2030 Feature 2030

#1302 Sensing and Detection Technologies

#1918 Feature 1918

#1119 Feature 1119

#1411 Feature 1411

#2404 Feature 2404

#1863 Feature 1863

#1947 Feature 1947

#716 Feature 716

#178 Feature 178

#466 Feature 466

#1646 Feature 1646

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#2094 Feature 2094

#2075 Feature 2075

#1708 Feature 1708

#878 Feature 878

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#1016 Feature 1016

#1780 Feature 1780

#1797 Feature 1797

#2007 Developmental Disparities & Intervention

#1182 Feature 1182

#723 Feature 723

#393 Feature 393

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#1294 Feature 1294

#1531 Feature 1531

#2656 Feature 2656

#1305 Feature 1305

#1577 Feature 1577

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#2589 Feature 2589

#1500 Feature 1500

#3023 Feature 3023

#733 Feature 733

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#373 Feature 373

#313 Feature 313

#1201 Feature 1201

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#1774 Feature 1774

#2592 Feature 2592

#2186 Feature 2186

#1699 Feature 1699

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#298 Feature 298

#2647 Feature 2647

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#257 Feature 257

#1974 Feature 1974

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Document Content

Precision of bone densitometry measurements: when is change true change and does it vary across bone density values?
The precision error of the bone densitometer is used to interpret significant change in bone mineral density (BMD) in serial studies. The precision error can be expressed as standard deviation (SD) or coefficient of variation (CV). The aims of this study are to determine the precision error over a range of BMD values and to demonstrate the application of the precision error in clinical practice. A bone phantom was used consisting of a perspex block with eight compartments containing varying amounts of hydroxyapatite powder to simulate a range of bone densities. The block was scanned 21 times and manual regions placed over each compartment to measure the BMD in each compartment. There were no significant differences in the variances or SD for all eight compartments, that is, over the range of BMD normally encountered in clinical practice. However, the calculated CV show a progressive fall in values as the BMD rises. Therefore, the SD should be used to calculate significant BMD change. In a practise with quality control procedures in place to detect calibration drift and with appropriately trained personnel, a change of approximately 0.05 g/cm2 is generally regarded as being a significant change at a 95% confidence level.

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