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Journal articles on the topic 'Agreement of estimates'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Podvezko, Valentinas. "AGREEMENT OF EXPERT ESTIMATES." Technological and Economic Development of Economy 11, no. 2 (2005): 101–7. http://dx.doi.org/10.3846/13928619.2005.9637688.

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The application of multicriteria methods largely depends on the calculation of the criteria weights based on expert evaluation. The results obtained can be used for practical purposes if expert judgments are in good agreement. This may be determined by the concordance of a coefficient obtained by ranking the available alternatives. The paper considers a possibility to apply the concordance coefficient in cases when expert evaluation is not based on ranking. The calculations reveal the dependence of the agreement of expert estimates on a particular method used. The highest degree of agreement h

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Martin, Daniel R., David M. Soria, Charles G. Brown, et al. "Agreement Between Paramedic-Estimated Weights and Subsequent Hospital Measurements in Adults with Out-of-Hospital Cardiac Arrest." Prehospital and Disaster Medicine 9, no. 1 (1994): 54–56. http://dx.doi.org/10.1017/s1049023x00040851.

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AbstractObjective:To assess the accuracy of paramedic estimates of adult body weights in cardiac arrest cases.Hypothesis:Paramedics could accurately estimate the weights of out-of-hospital cardiac arrest patients.Design:Retrospective data analysis of a 15-month, multicenter study involving nontraumatic out-of-hospital cardiac arrest patients. Paramedic estimates of body weights were compared to weights measured in the hospital. Patients were included in the analysis only if both a paramedic weight and a measured in-hospital weight were recorded.Setting:Six urban emergency medical services syst

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Gronnerod, Cato. "Rorschach interrater agreement estimates: An empirical evaluation." Scandinavian Journal of Psychology 40, no. 2 (1999): 115–20. http://dx.doi.org/10.1111/1467-9450.00107.

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Podvezko, Valentinas. "Determining the level of agreement of expert estimates." International Journal of Management and Decision Making 8, no. 5/6 (2007): 586. http://dx.doi.org/10.1504/ijmdm.2007.013420.

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Joughin, Ian, and David G. Vaughan. "Marine ice beneath the Filchner–Ronne Ice Shelf, Antarctica: a comparison of estimated thickness distributions." Annals of Glaciology 39 (2004): 511–17. http://dx.doi.org/10.3189/172756404781814717.

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AbstractIn an earlier study, melt/freeze rates beneath most of the Filchner–Ronne Ice Shelf, Antarctica, were estimated using an assumption of a steady-state ice shelf applied to a velocity field derived from RADARSAT and ERS-1 interferometric synthetic aperture radar (InSAR) data and an ice-thickness map inferred from ERS-1 satellite radar altimeter data. Here, we use these basal accumulation rates and the InSAR velocity data to estimate the distribution and thickness of marine ice beneath the Filchner–Ronne Ice Shelf. These estimates are compared with a marine-ice thickness map derived from

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Asiedu, Edward, and Thanasis Stengos. "An Empirical Estimation of the Underground Economy in Ghana." Economics Research International 2014 (July 21, 2014): 1–14. http://dx.doi.org/10.1155/2014/891237.

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The main aim of this paper is to estimate the size of the underground economy in Ghana during the period 1983–2003. There is no agreement on the appropriate estimation approach to adopt to measure the size of the underground activities. To this end, we employ the well-applied currency demand approach in our measurement. Parameter estimates from the estimated currency demand equation are used in quantifying the ratio of “underground” to “measured” output/income for the Ghanaian economy. The estimated long-run average size of the underground economy to GDP for Ghana over the period is 40%. The u

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Hendriks, Eef J., Sander Idema, Shawn L. Hervey-Jumper, et al. "Preoperative Resectability Estimates of Nonenhancing Glioma by Neurosurgeons and a Resection Probability Map." Neurosurgery 85, no. 2 (2018): E304—E313. http://dx.doi.org/10.1093/neuros/nyy487.

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Abstract BACKGROUND Preoperative interpretation of resectability of diffuse nonenhancing glioma is primarily based on individual surgical expertise. OBJECTIVE To compare the accuracy and precision between observed resections and preoperative estimates of neurosurgeons and a resection probability map (RPM). We hypothesize that the RPM estimates is as good as senior neurosurgeons. METHODS A total of 234 consecutive patients were included from 2 centers, who had resective surgery with functional mapping between 2006 and 2012 for a supra-tentorial nonenhancing glioma. Extent of resection (EOR) and

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Ocagli, Honoria, Corrado Lanera, Danila Azzolina, et al. "Resting Energy Expenditure in the Elderly: Systematic Review and Comparison of Equations in an Experimental Population." Nutrients 13, no. 2 (2021): 458. http://dx.doi.org/10.3390/nu13020458.

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Elderly patients are at risk of malnutrition and need an appropriate assessment of energy requirements. Predictive equations are widely used to estimate resting energy expenditure (REE). In the study, we conducted a systematic review of REE predictive equations in the elderly population and compared them in an experimental population. Studies involving subjects older than 65 years of age that evaluated the performance of a predictive equation vs. a gold standard were included. The retrieved equations were then tested on a sample of 88 elderly subjects enrolled in an Italian nursing home to eva

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Jovanović, Mladen, Adriano Arguedas-Soley, Dimitrije Cabarkapa, et al. "Agreement and Sensitivity of the Acceleration–Velocity Profile Derived via Local Positioning System." Sensors 24, no. 19 (2024): 6192. http://dx.doi.org/10.3390/s24196192.

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Sprint performance is commonly assessed via discrete sprint tests and analyzed through kinematic estimates modeled using a mono-exponential equation, including estimated maximal sprinting speed (MSS), relative acceleration (TAU), maximum acceleration (MAC), and relative propulsive maximal power (PMAX). The acceleration–velocity profile (AVP) provides a simple summary of short sprint performance using two parameters: MSS and MAC, which are useful for simplifying descriptions of sprint performance, comparison between athletes and groups of athletes, and estimating changes in performance over tim

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Alberico, David, Lakshmanan Sannachi, Maria Lourdes Anzola Pena, et al. "Quantitative Ultrasound Texture Analysis of Breast Tumors: A Comparison of a Cart-Based and a Wireless Ultrasound Scanner." Journal of Imaging 11, no. 5 (2025): 146. https://doi.org/10.3390/jimaging11050146.

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Previous work has demonstrated quantitative ultrasound (QUS) analysis techniques for extracting features and texture features from ultrasound radiofrequency data which can be used to distinguish between benign and malignant breast masses. It is desirable that there be good agreement between estimates of such features acquired using different ultrasound devices. Handheld ultrasound imaging systems are of particular interest as they are compact, relatively inexpensive, and highly portable. This study investigated the agreement between QUS parameters and texture features estimated from clinical u

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Shige, Shoichi, Satoshi Kida, Hiroki Ashiwake, Takuji Kubota, and Kazumasa Aonashi. "Improvement of TMI Rain Retrievals in Mountainous Areas." Journal of Applied Meteorology and Climatology 52, no. 1 (2013): 242–54. http://dx.doi.org/10.1175/jamc-d-12-074.1.

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AbstractHeavy rainfall associated with shallow orographic rainfall systems has been underestimated by passive microwave radiometer algorithms owing to weak ice scattering signatures. The authors improve the performance of estimates made using a passive microwave radiometer algorithm, the Global Satellite Mapping of Precipitation (GSMaP) algorithm, from data obtained by the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) for orographic heavy rainfall. An orographic/nonorographic rainfall classification scheme is developed on the basis of orographically forced upward vertical m

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Kromhout, Hans, Yvette Oostendorp, Dick Heederik, and Jan S. M. Boleij. "Agreement between qualitative exposure estimates and quantitative exposure measurements." American Journal of Industrial Medicine 12, no. 5 (1987): 551–62. http://dx.doi.org/10.1002/ajim.4700120509.

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Borka, Dusko, Jovanovic Borka, and Predrag Jovanovic. "Bounds on graviton mass and constraining Yukawa-like gravitational potential from planetary motion in the solar system." Filomat 37, no. 25 (2023): 8591–601. http://dx.doi.org/10.2298/fil2325591b.

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In this study we used the observed perihelion precession of planetary orbits in the Solar System in order to constrain theory of Yukawa-type gravity, and to bound mass of graviton. For that purpose we assumed that the precession angles of the planets in Yukawa-type gravity should be equal to their observed values, as well as to the corresponding predictions of General Relativity (GR). Starting from these requests we constrain Yukawa-like gravitational potential. The obtained results showed that our estimates for the range of Yukawa interaction ? at the Solar System scales are in good agreement

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Zhang, Daowei. "Welfare impacts of the 1996 United States - Canada softwood lumber agreement: an update." Canadian Journal of Forest Research 36, no. 1 (2006): 255–61. http://dx.doi.org/10.1139/x05-231.

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This research note provides updated estimates on the market and welfare impacts of the 1996 United States Canada Softwood Lumber Agreement (SLA). Using the aggregate price model in Zhang (2001), the anticipated change in lumber price is estimated at US$30 (based on 1997 dollars), or 7.4%, on average for the first 4 years under the SLA; this is smaller than the previous estimate. In the fifth year, the price impact was negative because of a decline in lumber demand, oversupply in the United States, and excessive supply from Canada due to the structure and expected expiration of the SLA. The c

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Kastrati, Lum, Hamidreza Raeisi-Dehkordi, Erand Llanaj, et al. "Agreement Between Mega-Trials and Smaller Trials." JAMA Network Open 7, no. 9 (2024): e2432296. http://dx.doi.org/10.1001/jamanetworkopen.2024.32296.

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ImportanceMega-trials can provide large-scale evidence on important questions.ObjectiveTo explore how the results of mega-trials compare with the meta-analysis results of trials with smaller sample sizes.Data SourcesClinicalTrials.gov was searched for mega-trials until January 2023. PubMed was searched until June 2023 for meta-analyses incorporating the results of the eligible mega-trials.Study SelectionMega-trials were eligible if they were noncluster nonvaccine randomized clinical trials, had a sample size over 10 000, and had a peer-reviewed meta-analysis publication presenting results for

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Cheng, Angela, Barbara Casati, Adrienne Tivy, Tom Zagon, Jean-François Lemieux, and L. Bruno Tremblay. "Accuracy and inter-analyst agreement of visually estimated sea ice concentrations in Canadian Ice Service ice charts using single-polarization RADARSAT-2." Cryosphere 14, no. 4 (2020): 1289–310. http://dx.doi.org/10.5194/tc-14-1289-2020.

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Abstract. This study compares the accuracy of visually estimated ice concentrations by eight analysts at the Canadian Ice Service with three standards: (i) ice concentrations calculated from automated image segmentation, (ii) ice concentrations calculated from automated image segmentation that were validated by the analysts, and (iii) the modal ice concentration estimate by the group. A total of 76 predefined areas in 67 RADARSAT-2 images are used in this study. Analysts overestimate ice concentrations when compared to all three standards, most notably for low ice concentrations (1/10–3/10). T

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Soneson, Charlotte, Michael I. Love, Rob Patro, Shobbir Hussain, Dheeraj Malhotra, and Mark D. Robinson. "A junction coverage compatibility score to quantify the reliability of transcript abundance estimates and annotation catalogs." Life Science Alliance 2, no. 1 (2019): e201800175. http://dx.doi.org/10.26508/lsa.201800175.

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Most methods for statistical analysis of RNA-seq data take a matrix of abundance estimates for some type of genomic features as their input, and consequently the quality of any obtained results is directly dependent on the quality of these abundances. Here, we present the junction coverage compatibility score, which provides a way to evaluate the reliability of transcript-level abundance estimates and the accuracy of transcript annotation catalogs. It works by comparing the observed number of reads spanning each annotated splice junction in a genomic region to the predicted number of junction-

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Chiocchia, Virginia, Adriani Nikolakopoulou, Theodoros Papakonstantinou, Matthias Egger, and Georgia Salanti. "Agreement between ranking metrics in network meta-analysis: an empirical study." BMJ Open 10, no. 8 (2020): e037744. http://dx.doi.org/10.1136/bmjopen-2020-037744.

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ObjectiveTo empirically explore the level of agreement of the treatment hierarchies from different ranking metrics in network meta-analysis (NMA) and to investigate how network characteristics influence the agreement.DesignEmpirical evaluation from re-analysis of NMA.Data232 networks of four or more interventions from randomised controlled trials, published between 1999 and 2015.MethodsWe calculated treatment hierarchies from several ranking metrics: relative treatment effects, probability of producing the best value p(BV) and the surface under the cumulative ranking curve (SUCRA). We estimate

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Birri Makota, Rutendo Beauty, and Eustasius Musenge. "Estimating HIV incidence over a decade in Zimbabwe: A comparison of the catalytic and Farrington models." PLOS Global Public Health 3, no. 9 (2023): e0001717. http://dx.doi.org/10.1371/journal.pgph.0001717.

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Over the years, numerous modelling studies have been proposed to estimate HIV incidence. As a result, this study aimed to evaluate two alternative methods for predicting HIV incidence in Zimbabwe between 2005 and 2015. We estimated HIV incidence from seroprevalence data using the catalytic and Farrington-2-parameter models. Data were obtained from 2005–06, 2010–11, and 2015 Zimbabwe Demographic Health Survey (ZDHS). These models were validated at the micro and macro-level using community-based cohort incidence and empirical estimates from UNAIDS EPP/SPECTRUM, respectively. The HIV incidence fo

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Martin-Doyle, William, Kerry L. Kilbridge, Susan Regan, et al. "Providers’ inability to estimate health literacy among African American (AA) patients (pts) with early prostate cancer (PCa)." Journal of Clinical Oncology 37, no. 7_suppl (2019): 77. http://dx.doi.org/10.1200/jco.2019.37.7_suppl.77.

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77 Background: Providers’ estimates of a pt’s health literacy are important for communication and shared decision making among men with early PCa. We explored differences between providers’ estimates of health literacy and measured health literacy among AA pts in a prospective cohort study at Grady Memorial Hospital and the Atlanta Veterans Administration Hospital. Methods: Providers (n=18) estimated the health literacy of 124 newly diagnosed, early-stage, AA PCa pts after discussions with each pt regarding his PCa treatment options, categorized as ≤Grade (Gr) 3; Gr 4-6; Gr 7-8; and High schoo

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Villars, C., A. Bergouignan, J. Dugas, et al. "Validity of combining heart rate and uniaxial acceleration to measure free-living physical activity energy expenditure in young men." Journal of Applied Physiology 113, no. 11 (2012): 1763–71. http://dx.doi.org/10.1152/japplphysiol.01413.2011.

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Combining accelerometry (ACC) with heart rate (HR) monitoring is thought to improve activity energy expenditure (AEE) estimations compared with ACC alone to evaluate the validity of ACC and HR used alone or combined. The purpose of this study was to estimate AEE in free-living conditions compared with doubly labeled water (DLW). Ten-day free-living AEE was measured by a DLW protocol in 35 18- to 55-yr-old men (11 lean active; 12 lean sedentary; 12 overweight sedentary) wearing an Actiheart (combining ACC and HR) and a RT3 accelerometer. AEE was estimated using group or individual calibration o

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Mudarra, María J., Beatriz Álvarez-González, Berta García-Salguero, and Stephen N. Elliott. "Multi-Informant Assessment of Adolescents’ Social–Emotional Skills: Patterns of Agreement and Discrepancy among Teachers, Parents, and Students." Behavioral Sciences 12, no. 3 (2022): 62. http://dx.doi.org/10.3390/bs12030062.

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Objectives: This study explores the patterns of agreement and discrepancy among informants (teachers, parents, and students) in the domains of the Social Emotional Skills Scale Assessment System—Social Skills Scales (SESAS-SS), which is a translation of the Social Skills Improvement System—Rating Scales (SSIS-RS) for use in Spain. Methods: The sample is composed of students, 88 teachers, and 98 parents from Spanish secondary schools. Inter-rater agreements have been assessed, calculating the Pearson correlation coefficients among pairs of raters, effect size indices, and intraclass correlation

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Margison, Frank, and Alistair Stewart. "General practitioner and psychotherapist referrals to a specialist psychotherapy centre." Psychiatric Bulletin 20, no. 7 (1996): 418–21. http://dx.doi.org/10.1192/pb.20.7.418.

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General practitioners (GPs) were surveyed by questionnaire to determine their views on the indications for specialist psychotherapy and their estimates about the number of patients they thought should be referred. GPs had good awareness of the types of treatments available. There was close agreement between referring and non-referring GPs and with specialists on the indications for treatment. Estimates about demand for services showed that those who had not referred in the previous year estimated higher rates than those who had referred. GPs and specialists show good overall agreement on level

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Razali, K., J. Amin, GJ Dore, MG Law, and HCV Projections Working Group. "Modelling and calibration of the hepatitis C epidemic in Australia." Statistical Methods in Medical Research 18, no. 3 (2008): 253–70. http://dx.doi.org/10.1177/0962280208094689.

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Hepatitis C virus (HCV) infection in Australia is predominantly transmitted through injecting drug use. A reduction in the heroin supply in Australia in late 2000 and early 2001 may have impacted the number of injecting drug users (IDUs) and the number of new hepatitis C infections. This paper updates estimates of HCV incidence between 1960 and 2005 and models long-term sequelae from infection. Outcomes among those with HCV were also recently assessed in a linkage study assessing cancer and causes of death following HCV diagnosis in New South Wales. Linkage study outcomes have been used here t

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Neumeier, Maria Susanne, Miranda Stattmann, Susanne Wegener, Andreas R. Gantenbein, and Heiko Pohl. "Interrater agreement in headache diagnoses." Cephalalgia Reports 5 (January 1, 2022): 251581632211153. http://dx.doi.org/10.1177/25158163221115391.

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Background: Diagnosing headache disorders comprises the collection and interpretation of information. This study estimates agreement and bias in the latter. Methods: Physicians and medical students diagnosed eight patients’ headaches using the International Classification of Headache Disorders. We calculated Cohen’s Kappa for all participants and subgroups (board-certified neurologists, physicians working in a neurology department). Moreover, we asked how sure they felt about their diagnoses. Finally, participants estimated the number of different headache diagnoses a patient receives when con

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LAZENBY, RICHARD A. "Bias and Agreement for Radiogrammetric Estimates of Cortical Bone Geometry." INVESTIGATIVE RADIOLOGY 32, no. 1 (1997): 12–18. http://dx.doi.org/10.1097/00004424-199701000-00003.

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Chiew, FHS, and TA Mcmahon. "Assessing the adequacy of catchment streamflow yield estimates." Soil Research 31, no. 5 (1993): 665. http://dx.doi.org/10.1071/sr9930665.

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Rainfall-runoff models are frequently used by hydrologists to estimate runoff from rainfall and climate data, with the model adequacy assessed by comparing the level of agreement between flows simulated by the model and the recorded flows. This paper describes simple methods (visual plots, statistical parameters and dimensionless coefficients) which are commonly used to compare estimated and recorded streamflow time series and discusses their advantages and limitations. Results of a survey conducted to ascertain the required quality of flow estimates before they are considered to be satisfacto

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Bezak, Nejc, Pasquale Borrelli, and Panos Panagos. "Exploring the possible role of satellite-based rainfall data in estimating inter- and intra-annual global rainfall erosivity." Hydrology and Earth System Sciences 26, no. 7 (2022): 1907–24. http://dx.doi.org/10.5194/hess-26-1907-2022.

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Abstract. Despite recent developments in modeling global soil erosion by water, to date, no substantial progress has been made towards more dynamic inter- and intra-annual assessments. In this regard, the main challenge is still represented by the limited availability of high temporal resolution rainfall data needed to estimate rainfall erosivity. As the availability of high temporal resolution rainfall data will most likely not increase in future decades since the monitoring networks have been declining since the 1980s, the suitability of alternative approaches to estimate global rainfall ero

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Carvalho, Humberto M., Manuel J. Coelho-e-Silva, Sérgio Franco, et al. "Agreement between anthropometric and dual-energy X-ray absorptiometry assessments of lower-limb volumes and composition estimates in youth-club rugby athletes." Applied Physiology, Nutrition, and Metabolism 37, no. 3 (2012): 463–71. http://dx.doi.org/10.1139/h2012-027.

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The purpose of this study was to assess the agreement of lower-limb volume estimates based on anthropometry and dual-energy X-ray absorptiometry (DXA) as a reference method in male rugby athletes. Predictive models using body mass and skinfolds were tested to improve the relative agreement between protocols (anthropometry, DXA). Rugby players (n = 41; 19.9 ± 2.2 years) volunteered for the study. Lower-limb total and fat-free volumes were estimated by anthropometry and also derived using DXA. Cross-validation between the anthropometry technique and DXA was then performed. Lower-limb volume esti

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Keltner, N. R., B. L. Bainbridge, and J. V. Beck. "Rectangular Heat Source on a Semi-infinite Solid—An Analysis for a Thin Film Heat Flux Gage Calibration." Journal of Heat Transfer 110, no. 1 (1988): 42–48. http://dx.doi.org/10.1115/1.3250470.

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For a thin film heat flux gage designed to provide both rapid response and long use time, initial calibrations using standard techniques indicated differences between the literature and the estimated properties. In order to estimate thermophysical properties and subsequently the gage sensitivity, an analytical model of the response to a step change in heating current was developed. Starting from a Green’s function description, the model is reduced to three algebraic expressions, which correspond to the early, middle, and late time regimes. These expressions provide a framework for least-square

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Tomasi, Giampaolo, Alessandra Bertoldo, Shrinivas Bishu, Aaron Unterman, Carolyn Beebe Smith, and Kathleen C. Schmidt. "Voxel-Based Estimation of Kinetic Model Parameters of the l-[1-11C]Leucine PET Method for Determination of Regional Rates of Cerebral Protein Synthesis: Validation and Comparison with Region-of-Interest-Based Methods." Journal of Cerebral Blood Flow & Metabolism 29, no. 7 (2009): 1317–31. http://dx.doi.org/10.1038/jcbfm.2009.52.

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We adapted and validated a basis function method (BFM) to estimate at the voxel level parameters of the kinetic model of the l-[1-11C]leucine positron emission tomography (PET) method and regional rates of cerebral protein synthesis (rCPS). In simulation at noise levels typical of voxel data, BFM yielded low-bias estimates of rCPS; in measured data, BFM and nonlinear least-squares parameter estimates were in good agreement. We also examined whether there are advantages to using voxel-level estimates averaged over regions of interest (ROIs) in place of estimates obtained by directly fitting ROI

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Proctor, Jarret A., Jason K. Smith, Stacey A. Gunter, and Matthew R. Beck. "98 Utilizing gas Flux from an Automated Head Chamber System to Estimate Dietary Energy Values in Cattle Fed a Finishing Diet." Journal of Animal Science 101, Supplement_1 (2023): 74–75. http://dx.doi.org/10.1093/jas/skad068.087.

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Abstract Automated head chamber systems (AHCS; GreenFeed, C-Lock Inc., Rapid City, SD) provide estimates of daily flux of methane (CH4), carbon dioxide (CO2), and oxygen (O2) from free roaming cattle. This provides the opportunity to conduct energetic research from cattle in their production environment. One opportunity is to evaluate agreement between performance-estimated (P) net energy [Mcal×(kg DMI)-1] for maintenance (NEm) and gain (NEg; pNEm and pNEg, respectively) and gas-estimated (G) NEm and NEg (gNEm and gNEg, respectively). To assess this, yearling steers (n = 54; initial BW = 484.1

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A., A. Vanukuri,, T. S. Banks, E. Budding, M. D. Rhodes, and M. Ersteniuk. "ESTIMATING ORBITAL PARAMETERS FOR VISUAL DOUBLE STARS." Open European Journal on Variable stars, no. 259 (2024): 1–12. https://doi.org/10.5817/oejv2025-0259.

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A Bayesian optimisation technique was applied to estimate orbital parameters for the visual double stars Sirius, α Cen, AGC11AB, BU151AB, BU513AB, BU648, BU883AB, STT38BC, and STF1196AB. These estimates were compared with those adopted by the Washington Double Star catalog, showing good agreement. This indicates the reliability of the method, ahead of its planned use for systems with no prior published orbital parameter estimates.

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Vanukuri, A., T. S. Banks, E. Budding, M. D. Rhodes, and M. Ersteniuk. "ESTIMATING ORBITAL PARAMETERS FOR VISUAL DOUBLE STARS." Open European Journal on Variable stars, no. 259 (2024): 1–12. https://doi.org/10.5817/oejv2024-0259.

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A Bayesian optimisation technique was applied to estimate orbital parameters for the visual double stars Sirius, ? Cen, AGC11AB, BU151AB, BU513AB, BU648, BU883AB, STT38BC, and STF1196AB. These estimates were compared with those adopted by the Washington Double Star catalog, showing good agreement. This indicates the reliability of the method, ahead of its planned use for systems with no prior published orbital parameter estimates.

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Brockhaus, Elisabeth K., Daniel Wolffram, Tanja Stadler, et al. "Why are different estimates of the effective reproductive number so different? A case study on COVID-19 in Germany." PLOS Computational Biology 19, no. 11 (2023): e1011653. http://dx.doi.org/10.1371/journal.pcbi.1011653.

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The effective reproductive number Rt has taken a central role in the scientific, political, and public discussion during the COVID-19 pandemic, with numerous real-time estimates of this quantity routinely published. Disagreement between estimates can be substantial and may lead to confusion among decision-makers and the general public. In this work, we compare different estimates of the national-level effective reproductive number of COVID-19 in Germany in 2020 and 2021. We consider the agreement between estimates from the same method but published at different time points (within-method agree

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Hedelius, Jacob K., Junjie Liu, Tomohiro Oda, et al. "Southern California megacity CO<sub>2</sub>, CH<sub>4</sub>, and CO flux estimates using ground- and space-based remote sensing and a Lagrangian model." Atmospheric Chemistry and Physics 18, no. 22 (2018): 16271–91. http://dx.doi.org/10.5194/acp-18-16271-2018.

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Abstract. We estimate the overall CO2, CH4, and CO flux from the South Coast Air Basin using an inversion that couples Total Carbon Column Observing Network (TCCON) and Orbiting Carbon Observatory-2 (OCO-2) observations, with the Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model and the Open-source Data Inventory for Anthropogenic CO2 (ODIAC). Using TCCON data we estimate the direct net CO2 flux from the SoCAB to be 104 ± 26 Tg CO2 yr−1 for the study period of July 2013–August 2016. We obtain a slightly higher estimate of 120 ± 30 Tg CO2 yr−1 using OCO-2 data. These CO2 e

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Witting, Lars, and Daniel G. Pike. "Distance estimation experiment for aerial minke whale surveys." NAMMCO Scientific Publications 7 (September 1, 2009): 111. http://dx.doi.org/10.7557/3.2709.

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A comparative study between aerial cue–counting and digital photography surveys for minke whales conducted in Faxaﬂói Bay in September 2003 is used to check the perpendicular distances estimated by the cue-counting observers. The study involved 2 aircraft with the photo plane at 1,700 feet flying above the cue–counting plane at 750 feet. The observer–based distance estimates were calculated from head angles estimated by angle-boards and declination angles estimated by declinometers. These distances were checked against image–based estimates of the perpendicular distance to the same whale. The

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Bottai, Matteo. "Maximum agreement regression with magreg." Stata Journal: Promoting communications on statistics and Stata 25, no. 1 (2025): 237–43. https://doi.org/10.1177/1536867x251322972.

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This note describes magreg , a command for estimating the coefficients of maximum-agreement regression models for an outcome variable given covariates. Recently introduced by Bottai et al. (2022, American Statistician 76: 313–321), maximum agreement regression maximizes the concordance correlation between the predicted values and the observed outcome values. The syntax of the command is nearly identical to that of regress , which estimates least-squares regression. This note shows the features of the command and its possible applications through a data example.

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Kjellander, Pia L., Malin Aronsson, Ulrika A. Bergvall, et al. "Validating a common tick survey method: cloth-dragging and line transects." Experimental and Applied Acarology 83, no. 1 (2020): 131–46. http://dx.doi.org/10.1007/s10493-020-00565-4.

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AbstractCloth-dragging is the most widely-used method for collecting and counting ticks, but there are few studies of its reliability. By using cloth-dragging, we applied a replicated line transects survey method, in two areas in Sweden with different Ixodes ricinus tick-densities (low at Grimsö and high at Bogesund) to evaluate developmental stage specific repeatability, agreement and precision in estimates of tick abundance. ‘Repeatability’ was expressed as the Intraclass Correlation Coefficient (ICC), ‘agreement’ with the Total Deviation Index (TDI) and ‘precision’ by the coefficient of var

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Bock, Clive H., Bruce W. Wood, Frank van den Bosch, Stephen Parnell, and Tim R. Gottwald. "The Effect of Horsfall-Barratt Category Size on the Accuracy and Reliability of Estimates of Pecan Scab Severity." Plant Disease 97, no. 6 (2013): 797–806. http://dx.doi.org/10.1094/pdis-08-12-0781-re.

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Pecan scab (Fusicladium effusum) is a destructive pecan disease. Disease assessments may be made using interval-scale-based methods or estimates of severity to the nearest percent area diseased. To explore the effects of rating method—Horsfall-Barratt (H-B) scale estimates versus nearest percent estimates (NPEs)—on the accuracy and reliability of severity estimates over different actual pecan scab severity ranges on fruit valves, raters assessed two cohorts of images with actual area (0 to 6, 6+ to 25%, and 25+ to 75%) diseased. Mean estimated disease within each actual disease severity range

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Stansberg, C. T. "Statistical Properties of Directional Sea Measurements." Journal of Offshore Mechanics and Arctic Engineering 109, no. 2 (1987): 142–47. http://dx.doi.org/10.1115/1.3257002.

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The statistical variability of directional sea estimates is considered. A general, but brief study in the mean and variance of the spatial coherence estimate is first presented. This function is found to be relatively unstable when it is not close to 1. A directional sea estimation procedure based on Fourier Series Expansion of the directional spectrum combined with a Maximum Entropy Condition is then described. This method is used in a numerical directional analysis test in order to demonstrate the effect on sea state estimates from the variability in the spatial coherence. Numerical sea stat

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Seoane, L., J. Nastula, C. Bizouard, and D. Gambis. "Hydrological Excitation of Polar Motion Derived from GRACE Gravity Field Solutions." International Journal of Geophysics 2011 (2011): 1–10. http://dx.doi.org/10.1155/2011/174396.

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The influence of the continental water storage on the polar motion is not well known. Different models have been developed to evaluate these effects and compared to geodetic observations. However, previous studies have shown large discrepancies mainly attributed to the lack of global measurements of related hydrological parameters. Now, from the observations of the GRACE mission, we can estimate the polar motion excitation due to the global hydrology. Data processing of GRACE data is carried out by several centers of analysis, we focus on the new solution computed by the Groupe de Recherche de

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Alexander, Peter D., and Eric M. Gese. "Identifying individual cougars (Puma concolor) in remote camera images – implications for population estimates." Wildlife Research 45, no. 3 (2018): 274. http://dx.doi.org/10.1071/wr17044.

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Context Several studies have estimated cougar (Puma concolor) abundance using remote camera trapping in conjunction with capture–mark–recapture (CMR) type analyses. However, this methodology (photo-CMR) requires that photo-captured individuals are individually recognisable (photo identification). Photo identification is generally achieved using naturally occurring marks (e.g. stripes or spots) that are unique to each individual. Cougars, however, are uniformly pelaged, and photo identification must be based on subtler attributes such as scars, ear nicks or body morphology. There is some debate

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Waugh, Shirley Moore, and Jianghua He. "Inter-Rater Agreement Estimates for Data With High Prevalence of a Single Response." Journal of Nursing Measurement 27, no. 2 (2019): 152–61. http://dx.doi.org/10.1891/1061-3749.27.2.152.

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Background and PurposeEfforts to establish support for the reliability of quality indicator data are ongoing. Most patients typically receive recommended care, therefore, the high-prevalence of event rates make statistical analysis challenging. This article presents a novel statistical approach recently used to estimate inter-rater agreement for the National Database for Nursing Quality Indicator pressure injury risk and prevention data.MethodsInter-rater agreement was estimated by prevalence-adjusted kappa values. Data modifications were also done to overcome the convergence issue due to spar

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Cortopassi, G. A., and E. Wang. "There is substantial agreement among interspecies estimates of DNA repair activity." Mechanisms of Ageing and Development 91, no. 3 (1996): 211–18. http://dx.doi.org/10.1016/s0047-6374(96)01788-5.

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Gusso, Anibal, Antônio Roberto Formaggio, Rodrigo Rizzi, Marcos Adami, and Bernardo Friedrich Theodor Rudorff. "Soybean crop area estimation by Modis/Evi data." Pesquisa Agropecuária Brasileira 47, no. 3 (2012): 425–35. http://dx.doi.org/10.1590/s0100-204x2012000300015.

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The objective of this work was to develop a procedure to estimate soybean crop areas in Rio Grande do Sul state, Brazil. Estimations were made based on the temporal profiles of the enhanced vegetation index (Evi) calculated from moderate resolution imaging spectroradiometer (Modis) images. The methodology developed for soybean classification was named Modis crop detection algorithm (MCDA). The MCDA provides soybean area estimates in December (first forecast), using images from the sowing period, and March (second forecast), using images from the sowing and maximum crop development periods. The

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Vernon, C. L., J. L. Bamber, J. E. Box, et al. "Surface mass balance model intercomparison for the Greenland ice sheet." Cryosphere Discussions 6, no. 5 (2012): 3999–4036. http://dx.doi.org/10.5194/tcd-6-3999-2012.

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Abstract. Four simulations of the surface mass balance (SMB) of the Greenland ice sheet (GrIS) are compared over the period 1960–2008. Total SMB estimates for the GrIS are in agreement within 34% of the four model average when a common ice sheet mask is used. When models' native land/ice/sea masks are used this spread increases to 57%. Variation in the spread of components of SMB from their mean: runoff 42% (29% native masks), precipitation 20% (24% native masks), melt 38% (74% native masks), refreeze 83% (142% native masks) show, with the exception of refreeze, a similar level of agreement on

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Bingham, Jeremy, Stefano Tempia, Harry Moultrie, et al. "Estimating the time-varying reproduction number for COVID-19 in South Africa during the first four waves using multiple measures of incidence for public and private sectors across four waves." PLOS ONE 18, no. 9 (2023): e0287026. http://dx.doi.org/10.1371/journal.pone.0287026.

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Objectives The aim of this study was to quantify transmission trends in South Africa during the first four waves of the COVID-19 pandemic using estimates of the time-varying reproduction number (R) and to compare the robustness of R estimates based on three different data sources, and using data from public and private sector service providers. Methods R was estimated from March 2020 through April 2022, nationally and by province, based on time series of rt-PCR-confirmed cases, hospitalisations, and hospital-associated deaths, using a method that models daily incidence as a weighted sum of pas

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Petersen-Øverleir, Asgeir. "Fitting depth–discharge relationships in rivers with floodplains." Hydrology Research 39, no. 5-6 (2008): 369–84. http://dx.doi.org/10.2166/nh.2008.303.

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A statistical method based on a simple uniform flow depth–discharge model for a two-stage main channel-floodplain river section has been developed and tested for data from four hydrometric gauging stations. The depth–discharge rating curve fitting procedure is formulated as a piecewise regression problem. A simulated annealing algorithm is used to obtain the least-squares rating curve parameters, including the main channel-floodplain change-point. Uncertainty of all parameter and discharge estimates is approximated by bootstrap techniques. The application of the methodology to field data showe

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Chan, Luis Lorenzo A., Jose Gil Archie V. Causing, and Katleya Teresa G. Manlapaz. "Pleural Fluid Volume Estimates and the Actual Volume: A Cross-Sectional Analysis." Applied Radiology 54, Suppl_1 (2025): 18–23. https://doi.org/10.37549/ar-d-24-0063.

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Abstract Objective and Hypothesis: This study aims to compare the accuracy of 5 ultrasonographic formulae commonly used to estimate pleural effusion volume against actual volumes drained via thoracentesis in noncritically ill patients. We hypothesized that some formulae would yield more accurate estimations. Materials and Methods: A cross-sectional analytic study was conducted at St. Luke’s Medical Center, Quezon City, the Philippines, from January 2022 to December 2022. Adult patients with pleural effusion who underwent chest US within 72 hours prior to thoracentesis were included. Five US fo

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