Usman Shahzad

17 papers Journal 16Unranked 1
YearRankTypeTitle / Venue / Authors
2025 J jnl
A Robust L-Comoments Covariance Matrix-Based Hotelling's T2${T^{2}}$ Control Chart for Monitoring High-Dimensional Non-Normal Multivariate Data in the Presence of Outliers.
Qual. Reliab. Eng. Int.
Muhammad Arslan, Usman Shahzad, Ali Yeganeh, Huiming Zhu, Jean-Claude Malela-Majika, Shakeel Ahmad
2025 J jnl
A new family of robust quantile-regression-based mean estimators using Sarndal approach.
Commun. Stat. Simul. Comput.
Malik Muhammad Anas, Zhengsheng Huang, Usman Shahzad, Soofia Iftikhar
2025 J jnl
Robust Särndal-Type Mean Estimators with Re-Descending Coefficients.
Axioms
Khudhayr A. Rashedi, Alanazi Talal Abdulrahman, Tariq S. Alshammari, Khalid M. K. Alshammari, Usman Shahzad, Javid Shabbir, Tahir Mehmood, Ishfaq Ahmad
2025 J jnl
Treatment of weights adjustments in the presence of unit non-response for small domains: a simulation study.
Commun. Stat. Simul. Comput.
Ashutosh Ashutosh, Usman Shahzad, Nadia H. Al-Noor, Kamlesh Kumar
2024 J jnl
Calibrated Empirical Neutrosophic Cumulative Distribution Function Estimation for Both Symmetric and Asymmetric Data.
Symmetry
Hareem Abbasi, Usman Shahzad, Walid Emam, Muhammad Hanif, Nasir Ali, Mubeen Mukhtar
2024 J jnl
Enhancement in Process Mining Model by Repairing Noisy Behavior in Event Log.
IEEE Access
Shabnam Shahzadi, Walid Emam, Usman Shahzad, Soofia Iftikhar, Ishfaq Ahmad, Gaurav Sharma
2023 J jnl
A novel family of variance estimators based on L-moments and calibration approach under stratified random sampling.
Commun. Stat. Simul. Comput.
Usman Shahzad, Ishfaq Ahmad, Ibrahim M. Almanjahie, Nadia H. Al-Noor, Muhammad Hanif
2023 J jnl
Calibration Estimation of Cumulative Distribution Function Using Robust Measures.
Symmetry
Hareem Abbasi, Muhammad Hanif, Usman Shahzad, Walid Emam, Yusra A. Tashkandy, Soofia Iftikhar, Shabnam Shahzadi
2023 J jnl
Compromised-Imputation and EWMA-Based Memory-Type Mean Estimators Using Quantile Regression.
Symmetry
Mohammed Ahmed Alomair, Usman Shahzad
2023 J jnl
Neutrosophic Mean Estimation of Sensitive and Non-Sensitive Variables with Robust Hartley-Ross-Type Estimators.
Axioms
Abdullah Mohammed Alomair, Usman Shahzad
2023 J jnl
Optimizing Mean Estimators with Calibrated Minimum Covariance Determinant in Median Ranked Set Sampling.
Symmetry
Abdullah Mohammed Alomair, Usman Shahzad
2022 J jnl
Estimation of coefficient of variation using linear moments and calibration approach for nonsensitive and sensitive variables.
Concurr. Comput. Pract. Exp.
Usman Shahzad, Ishfaq Ahmad, Muhammad Hanif, Nadia H. Al-Noor
2022 J jnl
Imputation based mean estimators in case of missing data utilizing robust regression and variance-covariance matrices.
Commun. Stat. Simul. Comput.
Usman Shahzad, Nadia H. Al-Noor, Muhammad Hanif, Irsa Sajjad, Malik Muhammad Anas
2022 J jnl
Simulation study of small domain with calibration approach.
Concurr. Comput. Pract. Exp.
Ashutosh Ashutosh, Usman Shahzad, Nadia H. Al-Noor, Piyush Kant Rai
2022 J jnl
Use of calibration constraints and linear moments for variance estimation under stratified adaptive cluster sampling.
Soft Comput.
Usman Shahzad, Ishfaq Ahmad, Nadia H. Al-Noor, Troon J. Benedict
2019 J jnl
A new class of ratio-type estimators for improving mean estimation of nonsensitive and sensitive variables by using supplementary information.
Commun. Stat. Simul. Comput.
Usman Shahzad, Pier Francesco Perri, Muhammad Hanif
2017 — conf
Oriental-script text detection and extraction in videos.
ASAR
Usman Shahzad, Khurram Khurshid