scholarly journals Representation and evaluation of wildfire propagation simulations

2014 ◽  
Vol 23 (1) ◽  
pp. 46 ◽  
Author(s):  
Jean-Baptiste Filippi ◽  
Vivien Mallet ◽  
Bahaa Nader
Keyword(s):  
Arrival Time ◽  
Mathematical Representation ◽  
Scoring Methods ◽  
Fire Dynamics ◽  
Scoring Method ◽  
New Methods ◽  
Simulation Error ◽  
Wildfire Simulation ◽  
Single Number ◽  
Observation Times

This paper provides a formal mathematical representation of a wildfire simulation, reviews the most common scoring methods using this formalism, and proposes new methods that are explicitly designed to evaluate a forest fire simulation from ignition to extinction. These scoring or agreement methods are tested with synthetic cases in order to expose strengths and weaknesses, and with more complex fire simulations using real observations. An implementation of the methods is provided as well as an overview of the software package. The paper stresses the importance of scores that can evaluate the dynamics of a simulation, as opposed to methods relying on snapshots of the burned surfaces computed by the model. The two new methods, arrival time agreement and shape agreement, take into account the dynamics of the simulation between observation times. Although no scoring method is able to perfectly synthesise a simulation error in a single number, the analysis of the scores obtained on idealised and real simulations provides insights into the advantages of these methods for the evaluation of fire dynamics.

The Relation Between Linguistic Awareness Skills and Spelling in Adults: A Comparison Among Scoring Procedures

2020 ◽  
Vol 63 (4) ◽  
pp. 1240-1253
Author(s):  
Victoria S. Henbest ◽  
Lisa Fitton ◽  
Krystal L. Werfel ◽  
Kenn Apel
Keyword(s):  
Phonemic Awareness ◽  
Concurrent Validity ◽  
Word Reading ◽  
Continuous Measure ◽  
Scoring Methods ◽  
Syntactic Awareness ◽  
Scoring Method ◽  
Spelling Performance ◽  
Linguistic Awareness ◽  
Average Readers

Purpose Spelling is a skill that relies on an individual's linguistic awareness, the ability to overtly manipulate language. The ability to accurately spell is important for academic and career success into adulthood. The spelling skills of adults have received some attention in the literature, but there is limited information regarding which approach for analyzing adults' spelling is optimal for guiding instruction or intervention for those who struggle. Thus, we aimed to examine the concurrent validity of four different scoring methods for measuring adults' spellings (a dichotomous scoring method and three continuous methods) and to determine whether adults' linguistic awareness skills differentially predict spelling outcomes based on the scoring method employed. Method Sixty undergraduate college students who were determined to be average readers as measured by a word reading and contextual word reading task were administered a spelling task as well as morphological, orthographic, phonemic, and syntactic awareness tasks. Results All four scoring methods were highly correlated suggesting high concurrent validity among the measures. Two linguistic awareness skills, morphological awareness and syntactic awareness, predicted spelling performance on both the dichotomous and continuous scoring methods. Contrastively, phonemic awareness and orthographic awareness predicted spelling performance only when spelling was scored using a continuous measure error analysis. Conclusions The results of this study confirm that multiple linguistic awareness skills are important for spelling in adults who are average readers. The results also highlight the need for using continuous measures of spelling when planning intervention or instruction, particularly in the areas of orthographic and phonemic awareness.

scholarly journals Systematic evaluation of scoring methods for Ki67 as a surrogate for 21-gene recurrence score

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Soonmyung Paik ◽  
Youngmee Kwon ◽  
Moo Hyun Lee ◽  
Ji Ye Kim ◽  
Da Kyung Lee ◽  
...  
Keyword(s):  
Clinical Utility ◽  
Recurrence Score ◽  
Predictive Marker ◽  
Labeling Index ◽  
Systematic Evaluation ◽  
Scoring Methods ◽  
Scoring Method ◽  
Ki67 Labeling Index ◽  
Risk Patients ◽  
Potential Clinical Utility

AbstractAlthough Ki67 labeling index is a potential predictive marker for chemotherapy benefit, its clinical utility has been limited by the lack of a standard scoring method resulting in poor interobserver reproducibility. Especially, there is no consensus on the use of average versus hotspot score for reporting. In order to determine the best method for Ki67 scoring and validate manual scoring method proposed by the International Ki67 Working Group (IKWG), we systematically compared average versus hotspot score in 240 cases with a public domain image analysis program QuPath. We used OncotypeDx Recurrence Score (RS) as a benchmark to compare the potential clinical utility of each scoring methods. Both average and hotspot scores showed statistically significant but only modest correlation with OncotypeDx RS. Only hotspot score could meaningfully distinguish RS low-risk versus high-risk patients. However, hotspot score was less reproducible limiting its clinical utility. In summary, our data demonstrate that utility of the Ki67 labeling index is influenced by the choice of scoring method.

The Validity of the 12-Item General Health Questionnaire in Australia: A Comparison Between Three Scoring Methods

2001 ◽  
Vol 35 (2) ◽  
pp. 231-235 ◽  
Author(s):  
Susan Donath
Keyword(s):  
Mental Illness ◽  
General Health ◽  
General Health Questionnaire ◽  
Composite International Diagnostic Interview ◽  
Health Practitioner ◽  
Health Questionnaire ◽  
Scoring Methods ◽  
Scoring Method ◽  
Specificity And Sensitivity ◽  
Threshold Score

Objective: To investigate the specificity and sensitivity of three different scoring methods of the 12-item General Health Questionnaire (GHQ-12) and hence to determine the best GHQ-12 threshold score for the detection of mental illness in community settings in Australia. Method: Secondary data analysis of the 1997 Australian National Survey of Health and Wellbeing (n = 10 641), using the Composite International Diagnostic Interview as the gold standard for diagnosis of mental illness. Results: The area under the Receiver Operating Characteristic (ROC) curve for the C-GHQ scoring method was 0.84 (95% CI = 0.83–0.86) compared with the area for the standard scoring method of 0.78 (95% CI = 0.76–0.80). The best threshold with C-GHQ was 3/4, with sensitivity 82.9% (95% CI = 80.2–85.5%) and specificity 69.0% (95% CI = 68.6–69.4%). The best threshold score with the standard scoring method was 0/1, with sensitivity 75.4% (95% CI = 72.5–78.4%) and specificity 69.9% (95% CI = 69.5–70.3%). These were also the best thresholds for a subsample of the population who had consulted a health practitioner in the previous 4 weeks. Conclusion: In the Australian setting, the C-GHQ scoring method is preferable to the standard method of scoring the GHQ-12. In Australia the GHQ-12 appears to be a less useful instrument for detecting mental illness than in many other countries.

scholarly journals Based on the study of optimal pollutant control in yingkou section of daliaohe river

2021 ◽  
Vol 228 ◽  
pp. 02015
Author(s):  
Qiucen Guo ◽  
Hui Yang ◽  
Huan He
Keyword(s):  
Screening Method ◽  
Scoring Methods ◽  
Scoring Method ◽  
Weight Factors ◽  
Score Method ◽  
Comprehensive Score ◽  
Degradation Of Pollutants

In view of the complexity of the river flowing into yingkou section of daliaohe river, an optimal pollutant control screening method combining the migration and degradation of toxic and harmful pollutants was proposed to improve the comprehensive scoring method. The weight factors of 10 synthetic scoring methods were proposed, and different weights were assigned to the weight factors, focusing more on the migration and degradation of pollutants. The improved comprehensive score method was used to screen 39 pollutants in the list of potential pollutants. Twelve kinds.

Calcification of the Aorta-Iliac Trajectory as a Risk Factor for Anastomotic Leakage in Colorectal Surgery: Individual Patient Data Meta-Analysis and Systematic Review

2021 ◽  
Vol 39 ◽  
Author(s):  
Vincent Edomskis ◽  
◽  
Pim Edomskis ◽  
Anand Menon ◽  
Roy Dwarkasing ◽  
...  
Keyword(s):  
Risk Factor ◽  
Colorectal Surgery ◽  
Anastomotic Leakage ◽  
Vascular Calcification ◽  
Individual Patient Data ◽  
Meta Analysis ◽  
Patient Data ◽  
Arterial Calcification ◽  
Scoring Methods ◽  
Scoring Method

Objective: The purpose of this review is to evaluate the relevance of vascular calcification as a potential risk factor for anastomotic leakage in colorectal surgery. Method: The Embase, Medline, PubMed, and Cochrane databases and Google Scholar were systematically searched. Studies that assessed calcification of the aorta-iliac trajectory in patients who underwent colorectal surgery were included. An independent patient data meta-analysis was performed as follows: based on the heterogeneity of the study population, a “random-effects model” or “fixed-effects model” was used to perform a multivariable logistic regression and calculate pooled Odds Ratios (OR) and 95% confidence intervals (CI). Heterogeneity was assessed using the Q-test and I2-test. Results: From a total of 457 articles retrieved, eight fell within the scope of the review, with a total of 2010 patients. Anastomotic leakage was found at a mean rate of 11.1% (SD 4.9%). In these eight studies, four different calcification scoring methods were used, which made a single structured meta-analysis not feasible. Therefore, an independent patient data meta-analysis on the most frequently used calcification scoring method was performed, including three studies with a total of 396 patients. After multivariable analyses, no significant association was found between anastomotic leakage and the amount of calcification in the aorta-iliac trajectory. The remaining three scoring methods were evaluated. In four of the five studies, vascular calcification was associated with anastomotic leakage after colorectal surgery. Conclusion: In contrast to previous studies, an individual patient data meta-analysis found no association between calcification and anastomotic leakage in colorectal surgery after multivariable analysis that considered a single calcification measurement method. In addition, this study demonstrated several scoring methods for arterial calcification and the need for a standardized technique. Therefore, the authors would recommend prospective studies using a calcification scoring method that includes grade of stenosis due to its potential to preoperatively improve perfusion by endovascular treatment.

Can a digital slide scanner and viewing technique assist the visual scoring for the cytokinesis-block micronucleus cytome assay?

Mutagenesis ◽  
2020 ◽  
Vol 35 (4) ◽  
pp. 311-318
Author(s):  
Emma L Jaunay ◽  
Varinderpal S Dhillon ◽  
Susan J Semple ◽  
Bradley S Simpson ◽  
Permal Deo ◽  
...  
Keyword(s):  
Dna Damage ◽  
Digital Pathology ◽  
Scoring Methods ◽  
High Definition ◽  
Digital Slide ◽  
Scoring Method ◽  
Desktop Computer ◽  
Damage Indices ◽  
Visual Scoring ◽  
Slide Scanner

Abstract The cytokinesis-block micronucleus cytome (CBMNcyt) assay is a comprehensive method to measure DNA damage, cytostasis and cytotoxicity caused by nutritional, radiation and chemical factors. A slide imaging technique has been identified as a new method to assist with the visual scoring of cells for the CBMNcyt assay. A NanoZoomer S60 Digital Pathology slide scanner was used to view WIL2-NS cells treated with hydrogen peroxide (H2O2) and measure CBMNcyt assay biomarkers using a high-definition desktop computer screen. The H2O2-treated WIL2-NS cells were also scored visually using a standard light microscope, and the two visual scoring methods were compared. Good agreement was found between the scoring methods for all DNA damage indices (micronuclei, nucleoplasmic bridges and nuclear buds) and nuclear division index with correlation R values ranging from 0.438 to 0.789, P < 0.05. Apoptotic and necrotic cell frequency was lower for the NanoZoomer scoring method, but necrotic frequency correlated well with the direct visual microscope method (R = 0.703, P < 0.0001). Considerable advantages of the NanoZoomer scoring method compared to direct visual microscopy includes reduced scoring time, improved ergonomics and a reduction in scorer fatigue. This study indicates that a digital slide scanning and viewing technique may assist with visual scoring for the CBMNcyt assay and provides similar results to conventional direct visual scoring.

Erosions and Fatty Lesions of Sacroiliac Joints in Patients with Axial Spondyloarthritis: Evaluation of Different MRI Techniques and Two Scoring Methods

2014 ◽  
Vol 41 (3) ◽  
pp. 473-480 ◽  
Author(s):  
Michaela Krohn ◽  
Leonie S. Braum ◽  
Joachim Sieper ◽  
In-Ho Song ◽  
Anja Weiß ◽  
...  
Keyword(s):  
Structural Damage ◽  
Spin Echo ◽  
Intraclass Correlation ◽  
Pulse Sequences ◽  
Correlation Coefficients ◽  
Scoring Systems ◽  
Scoring Methods ◽  
Sacroiliac Joints ◽  
Scoring Method ◽  
Phase Gradient

Objective.Assessment of structural damage of sacroiliac joints (SIJ) in patients with axial spondyloarthritides (axSpA) has been discussed as a useful outcome measure in clinical trials. The aim of our study was to evaluate different magnetic resonance imaging (MRI) scoring methods and pulse sequences with a focus on fatty lesions and bony erosions.Methods.Seventy-five patients with the diagnosis of axSpA underwent MRI at 3 timepoints as part of the ESTHER trial, which compared 2 groups of patients treated with etanercept or sulfasalazine. Two MRI sequences [unenhanced T1-weighted (T1w) turbo spin-echo (TSE) and unenhanced T1w opposed-phase gradient-echo sequences (opGRE)] and 2 different scoring systems (simple and comprehensive Berlin method) were used for the evaluation of fatty lesions and erosions of the SIJ. Differences between techniques and methods were evaluated by intraclass correlation coefficients (ICC) and standardized response means (SRM).Results.Applying the simple Berlin method, mean fatty lesion scores for etanercept-treated patients were 4.59 and 5.19 at baseline and Week 48, respectively, while the comprehensive Berlin method revealed mean fatty lesion scores of 6.59 and 7.64, respectively. Corresponding SRM were 0.59 and 0.86 for simple and comprehensive methods, respectively, while ICC dropped from 0.76–0.77 to 0.59–0.62. Scoring of erosions on T1w opGRE images resulted in a higher interreader agreement (ICC of 0.65) compared to T1w TSE sequences (ICC of 0.18).Conclusion.Better characterization of fatty lesion changes within 1 year was achieved by the comprehensive Berlin scoring method; however, more reader variation has to be taken into account. The delineation of erosions is markedly improved when using T1w opGRE pulse sequences.

The Paced Auditory Serial Addition Test: to what extent is it performed as instructed, and is it associated with disease course?

2005 ◽  
Vol 11 (1) ◽  
pp. 85-89 ◽  
Author(s):  
H Coo ◽  
W M Hopman ◽  
C M Edgar ◽  
E V McBride ◽  
D G Brunet
Keyword(s):  
Multiple Sclerosis ◽  
Cognitive Function ◽  
Correct Response ◽  
Disease Course ◽  
Scoring Methods ◽  
Scoring Method ◽  
Multiple Sclerosis Functional Composite ◽  
Proxy Measure ◽  
The Mean ◽  
Serial Addition

One commonly used outcome measure in multiple sclerosis (MS) clinical trials is the Multiple Sclerosis Functional Composite, which includes the Paced Auditory Serial Addition Test (PASAT) as a measure of cognitive function. Concerns have been raised about the standard PASAT scoring method, whereby the number of correct responses is summed. This method does not take into account whether the test is performed as intended, which may affect interpretation of the results. Accordingly, another scoring method has been proposed, which examines the number of times a correct response is immediately preceded by another correct response (termed a dyad). We compared the two scoring methods for the PASAT, and found that the mean percentage of correct responses not accounted for by dyads ranged from 27.5% to 49.5%, indicating that much of the time the test is not performed as instructed. We also examined disease course and the PASAT score, as studies have produced conflicting results as to whether disease course is associated with cognitive impairment. Although disease course was significantly associated with the PASAT score, it accounted for little of the variation in scores, even when adjusting for other predictors. Finally, as 14.2% of participants refused to do the PASATor failed to complete it, we also examined whether the Perceived Deficits Questionnaire (PDQ), a self-reported measure of cognitive function, is a potential proxy measure for the PASAT. The correlation between the two tools was low (-0.14), suggesting that the PDQ is not a useful substitute for the PASAT.

scholarly journals Semi-automated transcription and scoring of autobiographical memory narratives

2020 ◽  
Author(s):  
Victoria Wardell ◽  
Christian Esposito ◽  
Christopher R Madan ◽  
Daniela Palombo
Keyword(s):  
Autobiographical Memory ◽  
Memory Studies ◽  
Future Research ◽  
Scoring Methods ◽  
Scoring Method ◽  
Narrative Methods ◽  
Narrative Study ◽  
Microsoft Word ◽  
Automated Process ◽  
Automate Counting

Autobiographical memory studies conducted with narrative methods are onerous, requiring significant resources in time and labour. We have created a semi-automated process that allows autobiographical transcribing and scoring methods to be streamlined. Our paper focuses on the Autobiographical Interview (AI; Levine et al., 2002) but this method can be adapted for other narrative protocols. Specifically, here we lay out a procedure that guides researchers through the four main phases of the autobiographical narrative pipeline: (1) data collection, (2) transcribing, (3) scoring, and (4) analysis. First, we provide recommendations for incorporating transcription software to augment human transcribing. We then introduce an electronic scoring procedure for tagging narratives for scoring that incorporates the traditional AI scoring method with basic keyboard shortcuts in Microsoft Word. Finally, we provide a Python script that can be used to automate counting scored transcripts. This method accelerates the time it takes to conduct a narrative study and reduces opportunity for error in narrative quantification. Available open access on GitHub (https://github.com/cMadan/scoreAI), our pipeline makes narrative methods more accessible for future research.

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