نتایج جستجو برای: missing outputs
تعداد نتایج: 99178 فیلتر نتایج به سال:
مقدمه: ژنها بوجود آورنده اعضاء و اندامهای مختلفی می باشند که ممکن است به راحتی توسط عوامل مختلف دچار جهش و اختلال ساختمانی شوند که نتیجه آن به صورت انواع بیماریها و اختلالات در افراد مخصوصاً در فرزندان آنها ظاهر می شود. میزان معلولیت در فرزندان ازدواجهای فامیلی بیشتر از ازدواجهای غیرفامیلی می باشد . هدف از این تحقیق بررسی فراوانی آنومالیهای دندانی در متولدین ازدواج فامیلی و غیر آن بود . مواد و ر...
Multivariate time series data are found in a variety of fields such as bioinformatics, biology, genetics, astronomy, geography and finance. Many time series datasets contain missing data. Multivariate time series missing data imputation is a challenging topic and needs to be carefully considered before learning or predicting time series. Frequent researches have been done on the use of diffe...
background: diagnostic models are frequently used to assess the role of risk factors on disease complications, and therefore to avoid them. missing data is an issue that challenges the model making. the aim of this study was to develop a diagnostic model to predict death in hiv/ aids patients when missing data exist. methods: hiv patients (n=1460) referred to voluntary consoling and testing cen...
in interventional or observational longitudinal studies, the issue of missing values is one of the main concepts that should be investigated. the researcher's main concerns are the impact of missing data on the final results of the study and the appropriate methods that missing values should be handled. regarding the role and the scale of the variable that missing values have been occurred and ...
Introduction: Due to importance of data quality, issues relating to filling the missing data has found a great deal of interest. Regeneration methods for missing data can be classified into two kinds of classical and modern categories. Application of statistical methods such as relationship with nearby stations and approaches on the base of hydrological, climatological or physiographical simila...
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