Showing 1 - 20 results of 70 for search '"selection bias"', query time: 0.06s Refine Results
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    Unbiased Isotonic Regression Tree for Discovering Hidden Heterogeneity in Monotonicity Constraints by Doowon Choi

    Published 2025-01-01
    “…This study first explores the possibility of selection bias on split variables in the isotonic regression tree and proposes an unbiased isotonic regression tree that mitigates the issue of the selection bias problem. …”
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    Article
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    Unsupervised Domain Adaptation Using Exemplar-SVMs with Adaptation Regularization by Yiwei He, Yingjie Tian, Jingjing Tang, Yue Ma

    Published 2018-01-01
    “…However, in many real-world applications, there also exist problems of sample selection bias among instances in a domain; this would reduce the generalization performance of learners. …”
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    Article
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    Association between Metformin Use and Cancer Stage at Diagnosis among Elderly Medicare Beneficiaries with Preexisting Type 2 Diabetes Mellitus and Incident Prostate Cancer by Amit D. Raval, Malcolm D. Mattes, Suresh Madhavan, Xiaoyun Pan, Wenhui Wei, Usha Sambamoorthi

    Published 2016-01-01
    “…After adjusting for the observed selection bias and other independent variables, metformin use was associated with a 32% reduction in the risk of advanced prostate cancer (adjusted odds ratio, AOR: 0.68, 95% confidence interval, CI: 0.48, 0.97). …”
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    Quality of the systematic reviews in cochrane multiple sclerosis related articles by Masoud Zeynalzadeh, Nasim Mahdavi, Morteza Atayi, Hanieh Salehi-Pourmehr, Sakineh Hajebrahimi

    Published 2024-11-01
    “…However, from 2016 till 2023, the most common risk of bias shifted to ‘low outcome’ for Random Sequence Generation (selection bias). Conclusion: Despite significant enhancements in improving the quality of studies, there is still a far way to achieve the ideal quality.…”
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    Comment sortir de prison ? Le rôle des statistiques pénitentiaires dans la compréhension des comportements de récidive by Anaïs Henneguelle

    Published 2018-01-01
    “…In the third and last part, we explore another blind spot of the econometric method, namely selection bias. How do judges choose who will obtain an alternative to prison?…”
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    Article
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    On using a non-probability sample for the estimation of population parameters by Ieva Burakauskaitė, Andrius Čiginas

    Published 2023-11-01
    “… We aim to find a way to effectively integrate a non-probability (voluntary) sample under the data framework, where the study variable is also observed in a probability sample of some statistical survey. The selection bias that arises from voluntary participation in the survey is corrected by estimating the inclusion into the sample probabilities (propensity scores) for the units in the non-probability sample. …”
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    The widening gender wage gap in the gig economy in China: the impact of digitalisation by Jiachen Han, Mingming Li, Shi Li, Yingying Hu

    Published 2024-12-01
    “…Utilising the China Labour Dynamics Survey data from 2014, 2016, and 2018, and applying the Bourguignon, Fournier, and Gurgand model to correct selection bias, this study reveals that, digitalisation has exacerbated gender wage gaps, with the wage growth of female gig workers significantly lagging behind their male counterparts, especially among married and older cohorts. …”
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    Article
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    How does climate shock affect technology adoption in rice production? by Thai Phan Nguyen, Duc Kien Nguyen, Quang Dung Truong

    Published 2025-01-01
    “…This study utilised VARHS (The Vietnam Access to Resources Household Survey) panel data from 2012 to 2018 and employed regression analysis following the application of propensity score matching (PSM) to address potential selection bias caused by drought and flood shocks. The findings indicated that households tend to adopt the improved variety of rice and organic fertilisers since households suffer the shock from the drought. …”
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    Interaction Design of Educational App Based on Collaborative Filtering Recommendation by Ying Xu, Tse-Kian Neo, Hin Hew Soon

    Published 2022-01-01
    “…Simultaneously, this paper combines user activity, item popularity, and time factors to comprehensively measure user visibility of items and incorporates them into the collaborative filtering recommendation algorithm in order to effectively mitigate the effects of data sparsity and user selection bias and improve recommendation results.…”
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    Whiplash Injuries: An Update by Robert W Teasell, Allan P Shapiro

    Published 1998-01-01
    “…Studies looking at the natural history of whiplash injuries have suffered from problems of selection bias, retrospective reviewing and unclear outcomes. …”
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    Motion - Colonoscopic Surveillance is more Cost Effective than Colectomy in Patients with Ulcerative Colitis: Arguments Against the Motion by Anders Ekbom

    Published 2003-01-01
    “…Available studies are susceptible to several biases: the ’healthy worker’ effect, surveillance bias and selection bias. Patients who are enrolled in surveillance programs are more likely to be thoroughly evaluated beforehand, are more likely to be given a diagnosis of dysplasia or neoplasm even when asymptomatic and are more likely to comply with medical treatment, including maintenance anti-inflammatory medication. …”
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    Quantile and interquantile regression models for returns to education by economic sector and vulnerable population in Colombia by Jacobo Campo-Robledo, Cristian Castillo-Robayo, Julimar da silva Bichara

    Published 2024-12-01
    “…Quantile and interquantile regressions were employed, correcting for selection bias through the inverse Mills ratio and using monthly data from Colombia's Great Integrated Household Survey (GEIH) for 2019, to explore how the effect of education varies at different points of the income distribution and between these points. …”
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    Evaluation of Absolute Neutrophil Count in the Perioperative Setting of Sarcoma Resection by Gayathri Vijayakumar, Emma M. Steffer, Neil P. Buac, Matthew W. Colman, Steven Gitelis, Alan T. Blank

    Published 2024-01-01
    “…Future studies with larger cohorts of neutropenic patients are needed to evaluate these outcomes, as our cohort had very few neutropenic patients due to selection bias.…”
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    Can the Adoption of Green Pest Control Technologies Reduce Pesticide Use? Evidence from China by Haochen Jiang, Yubin Wang

    Published 2025-01-01
    “…This model allows for more accurate estimates of the treatment effects by addressing selection bias and accounting for both observable and unobservable factors. …”
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    Article
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    ChestX-Transcribe: a multimodal transformer for automated radiology report generation from chest x-rays by Prateek Singh, Sudhakar Singh

    Published 2025-01-01
    “…However, the reliance on the Indiana University dataset introduces potential limitations, including selection bias, as the dataset is collected from specific hospitals within the Indiana Network for Patient Care. …”
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    The prevalence and risk factors of diabetes and hypertension among police personnel: A population-based cross-sectional study by Deepak V. Chaturvedi, Digant Gupta, Darpan M. Maheshgauri, Gauri E. Yadav, Dhrubajyoti J. Debnath, Asmita D. Chaturvedi

    Published 2025-01-01
    “…Although studies have been conducted to assess the health status of police personnel in India, most of them suffer from small sample sizes, selection bias, and poor generalizability. Objectives: This large-scale study evaluated the prevalence of diabetes and hypertension along with their risk factors among police personnel in Mumbai, India. …”
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    Cesarean section and the gestational duration of subsequent pregnancies: A nationwide register-based cohort study. by Felix Evers, Christopher Flatley, Karin Ytterberg, Julius Juodakis, Pol Solé-Navais, Bo Jacobsson

    Published 2025-01-01
    “…However, this risk is based on studies which have not fully accounted for selection bias, and the studied outcomes have been limited to the study of early deliveries. …”
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    How urban welfare affects the hukou selection of rural migrants that belong to dual-hukou families in china by Chen Lu, Jian Chen, Jiewei Li, Xuetong Wang

    Published 2025-01-01
    “…These findings offer robust insights for policymaking, demonstrating resilience against sample self-selection bias and reverse causality.…”
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