Search Results - "Missing data"

Missing Financial Data.

Authors: Bryzgalova, Svetlana Lerner, Sven Lettau, Martin et al.

Source: Review of Financial Studies. Mar2025, Vol. 38 Issue 3, p803-882. 80p.

Subject Terms: *FINANCIAL statements, *TIME series analysis, *RISK premiums, *FINANCIAL research, *PORTFOLIO management (Investments), MISSING data (Statistics)

Bayesian hierarchical meta-analysis using individual participant data for modeling heterogeneous dropout patterns across multiple clinical trials.

Authors: Tefera, Eshetu Chen, Chixiang Buchanan, Robert et al.

Source: Journal of Applied Statistics. Oct2025, p1-18. 18p. 5 Illustrations.

Subject Terms: *SIMULATION methods & models, CLINICAL trials, MISSING data (Statistics), INFERENTIAL statistics, PEOPLE with schizophrenia

Fractional imputation algorithm in functional-coefficient structural equation model.

Authors: Cheng, Hao¹ (AUTHOR) chenghaostatistics@yeah.net

Source: Communications in Statistics: Simulation & Computation. Oct2025, p1-24. 24p. 4 Illustrations.

Subject Terms: *TECHNOLOGICAL innovations, *ESTIMATION theory, STRUCTURAL equation modeling, MISSING data (Statistics), PATH analysis (Statistics)

Tests for one and two mean vectors and simultaneous confidence intervals with monotone incomplete data.

Authors: Yagi, Ayaka Seo, Takashi

Source: Communications in Statistics: Simulation & Computation. 2025, Vol. 54 Issue 10, p4403-4430. 28p.

Subject Terms: *STATISTICAL hypothesis testing, *MONTE Carlo method, MISSING data (Statistics), T-test (Statistics), INFERENTIAL statistics, VECTOR analysis, STATISTICAL power analysis

Nonparametric estimation of path‐specific effects in the presence of nonignorable missing covariates.

Authors: Shan, Jiawei Wang, Ting Li, Wei et al.

Source: Scandinavian Journal of Statistics. Dec2025, Vol. 52 Issue 4, p1556-1593. 38p.

Subject Terms: MEDIATION (Statistics), MISSING data (Statistics), NONPARAMETRIC estimation

Zero-inflated Poisson mixed model for longitudinal count data with informative dropouts.

Authors: Sinha, Sanjoy K.¹ (AUTHOR) sinha@math.carleton.ca

Source: Journal of Applied Statistics. Nov2025, Vol. 52 Issue 14, p2686-2706. 21p.

Subject Terms: *ZERO-inflated probability distribution, *MONTE Carlo method, MISSING data (Statistics), EPIDEMIOLOGICAL research, LONGITUDINAL method, RANDOM effects model

Integrated exclusive hypothesis test for response missing at random.

Authors: Huang, Qiyue Lei, Ji'an Chen, Fupeng et al.

Source: Communications in Statistics: Theory & Methods. 2025, Vol. 54 Issue 21, p6950-6965. 16p.

Subject Terms: *REGRESSION analysis, *STATISTICAL hypothesis testing, *EMPIRICAL research, MISSING data (Statistics), STATISTICAL weighting

Hybrid imputation of missing values using KNN on MEWMA-based adaptive process control.

Authors: Jiang, Yijun He, Tingting Yu, Miaomiao et al.

Source: Quality Technology & Quantitative Management. Nov2025, p1-21. 21p. 12 Illustrations.

Subject Terms: *QUALITY control charts, MISSING data (Statistics), MOVING average process, OUTLIER detection, K-nearest neighbor classification, INTELLIGENT control systems

Revealing top-k dominant individuals in incomplete data based on spark environment.

Authors: Wang, Ke Cui, Binge Lin, Jerry Chun-Wei et al.

Source: Environment, Development & Sustainability. Oct2025, Vol. 27 Issue 10, p24837-24857. 21p.

Subject Terms: *DISTRIBUTED computing, *EMPIRICAL research, *ELECTRONIC data processing, MISSING data (Statistics), COMPUTATIONAL complexity, APPLIED sciences

Inference on outcome distribution and quantile functions with missing data, by quantile imputation, probability weighting, and doubly robust estimators.

Authors: Yang, Ji-Yeon Yoon, Jungmo

Source: Econometric Reviews. 2025, Vol. 44 Issue 10, p1564-1588. 25p.

Subject Terms: *INCOME distribution, *WAGE statistics, MISSING data (Statistics), RESAMPLING (Statistics), ROBUST statistics, QUANTILE regression, STATISTICAL weighting

Comparative study of different approaches in dealing with null values for big mart sales prediction analysis.

Authors: Raj, Deepak Singh, Rahul Dev

Source: AIP Conference Proceedings. 10/31/2025, Vol. 3343 Issue 1, p1-7. 7p.

Subject Terms: *MACHINE learning, *MISSING data (Statistics), *EVALUATION methodology, *BIG box stores, *SALES forecasting, *DATA augmentation, *RANDOM forest algorithms

Change-Point Detection in Dynamic Networks with Missing Links.

Authors: Enikeeva, Farida Klopp, Olga

Source: Operations Research. Sep/Oct2025, Vol. 73 Issue 5, p2417-2429. 13p.

Subject Terms: *COMPUTER networks, CHANGE-point problems, MISSING data (Statistics), ANOMALY detection (Computer security), ROBUST control

Missing Data Handling via EM and Multiple Imputation in Network Analysis using Glasso and Atan Regularization.

Authors: Nehler, Kai Jannik Schultze, Martin

Source: Multivariate Behavioral Research. Sep/Oct2025, Vol. 60 Issue 5, p990-1012. 23p.

Subject Terms: *DATA analysis, MISSING data (Statistics), MULTIPLE imputation (Statistics), MATHEMATICAL regularization, EXPECTATION-maximization algorithms, STATISTICAL models

Missing Data in Discrete Time State-Space Modeling of Ecological Momentary Assessment Data: A Monte-Carlo Study of Imputation Methods.

Authors: Slipetz, Lindley R. Falk, Ami Henry, Teague R.

Source: Multivariate Behavioral Research. Jul/Aug2025, Vol. 60 Issue 4, p695-710. 16p.

Subject Terms: *MATHEMATICAL statistics, *TIME series analysis, MISSING data (Statistics), ECOLOGICAL momentary assessments (Clinical psychology), KALMAN filtering, STATISTICAL bias, STATE-space methods

Robust estimation of the parametric regression model under semi-supervised transfer learning.

Authors: Lai, Peng Wang, Zhou Wang, Zitong

Source: Communications in Statistics: Simulation & Computation. Sep2025, p1-18. 18p. 1 Illustration.

Subject Terms: *REGRESSION analysis, ROBUST statistics, MISSING data (Statistics), SUPERVISED learning, KNOWLEDGE transfer, MULTIPLE imputation (Statistics), ASYMPTOTIC normality

Simulation comparison of the effects of missing data imputation methods on classification performance in high dimensional data.

Authors: Varol, Bugra Kurt Omurlu, Imran Ture, Mevlut

Source: Communications in Statistics: Simulation & Computation. Jul2025, p1-20. 20p. 13 Illustrations.

Subject Terms: *MULTIVARIATE analysis, MISSING data (Statistics), EXTREME learning machines, CLASSIFICATION, K-nearest neighbor classification, MULTIPLE imputation (Statistics), INTERPOLATION

A Method for Constructing the Characteristics of English Majors in Vocational Colleges Based on Data Fusion of Educational Reform.

Authors: Chao, Li Shi¹ (AUTHOR) m16637238969@163.com

Source: International Journal of High Speed Electronics & Systems. Sep2025, Vol. 34 Issue 3, p1-21. 21p.

Subject Terms: ANALYTIC hierarchy process, MISSING data (Statistics), COLLEGE teachers, EDUCATIONAL change, MULTISENSOR data fusion

Robust univariate missing data imputation in time series for air quality data.

Authors: Haile, Tariku Tesfaye Tian, Fenglin Tian, Boping

Source: Communications in Statistics: Theory & Methods. Jul2025, p1-21. 21p. 6 Illustrations.

Subject Terms: *TIME series analysis, *BOX-Jenkins forecasting, *AIR quality, MISSING data (Statistics), KALMAN filtering, PARTICULATE matter, MULTIPLE imputation (Statistics), SEASONAL temperature variations

A nonparametric method to estimate the nonlinear effect of aggregate exposures on the binary outcome.

Authors: Dong, Jianghu Plumb, Troy Liu, Ben et al.

Source: Communications in Statistics: Case Studies & Data Analysis. 2025, Vol. 11 Issue 3, p371-388. 18p.

Subject Terms: *SIMULATION methods & models, AGGREGATION (Statistics), MISSING data (Statistics), ROBUST statistics, PUBLIC health, KIDNEY transplantation

From gender data gaps to gains: A sustainable approach to training and capacity building in Asia and the Pacific.

Authors: Moonie, Sinovia Chang, Tsz Yu Serrao, Sharita et al.

Source: Statistical Journal of the IAOS. Sep2025, Vol. 41 Issue 3, p557-571. 15p.

Subject Terms: *PARTNERING between organizations, *SUSTAINABLE development, CAPACITY building, MISSING data (Statistics), CURRICULUM, GENDER mainstreaming, GENDER inequality

Geographic Terms: PACIFIC Area, ASIA