Accuracy analysis of centroid calculated by a modified center detection algorithm for Shack–Hartmann wavefront sensor

2008 ◽  
Vol 281 (4) ◽  
pp. 750-755 ◽  
Author(s):  
Huaqiang Li ◽  
Helun Song ◽  
Changhui Rao ◽  
Xuejun Rao
Keyword(s):  
Detection Algorithm ◽  
Wavefront Sensor ◽  
Accuracy Analysis

A center detection algorithm for Shack–Hartmann wavefront sensor

2007 ◽  
Vol 39 (2) ◽  
pp. 262-267 ◽  
Author(s):  
Sung-Hoon Baik ◽  
Seung-Kyu Park ◽  
Cheol-Jung Kim ◽  
Byungheon Cha
Keyword(s):  
Detection Algorithm ◽  
Wavefront Sensor

New centroid detection algorithm for the Shack-Hartmann wavefront sensor

2002 ◽  
Author(s):  
Sung-Hoon Baik ◽  
Seung-Kyu Park ◽  
Cheol-Jung Kim ◽  
Young-Seok Seo ◽  
Young-June Kang
Keyword(s):  
Detection Algorithm ◽  
Wavefront Sensor ◽  
Centroid Detection

Read, Understand, Learn, & Excel: Development and Testing of an Automated Reading Strategy Detection Algorithm for Postsecondary Students

2019 ◽  
Vol 28 (3) ◽  
pp. 1257-1267 ◽  
Author(s):  
Priya Kucheria ◽  
McKay Moore Sohlberg ◽  
Jason Prideaux ◽  
Stephen Fickas
Keyword(s):  
Academic Success ◽  
Undergraduate Students ◽  
Expository Text ◽  
Reading Strategy ◽  
Detection Algorithm ◽  
Expository Texts ◽  
Human Observer ◽  
Behavioral Strategies ◽  
Periodic Review ◽  
Wide Range

PurposeAn important predictor of postsecondary academic success is an individual's reading comprehension skills. Postsecondary readers apply a wide range of behavioral strategies to process text for learning purposes. Currently, no tools exist to detect a reader's use of strategies. The primary aim of this study was to develop Read, Understand, Learn, & Excel, an automated tool designed to detect reading strategy use and explore its accuracy in detecting strategies when students read digital, expository text.MethodAn iterative design was used to develop the computer algorithm for detecting 9 reading strategies. Twelve undergraduate students read 2 expository texts that were equated for length and complexity. A human observer documented the strategies employed by each reader, whereas the computer used digital sequences to detect the same strategies. Data were then coded and analyzed to determine agreement between the 2 sources of strategy detection (i.e., the computer and the observer).ResultsAgreement between the computer- and human-coded strategies was 75% or higher for 6 out of the 9 strategies. Only 3 out of the 9 strategies–previewing content, evaluating amount of remaining text, and periodic review and/or iterative summarizing–had less than 60% agreement.ConclusionRead, Understand, Learn, & Excel provides proof of concept that a reader's approach to engaging with academic text can be objectively and automatically captured. Clinical implications and suggestions to improve the sensitivity of the code are discussed.Supplemental Materialhttps://doi.org/10.23641/asha.8204786

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