Tolga Zaman

According to our database, Tolga Zaman authored at least 7 papers between 2019 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Improved memory-type ratio estimator for population mean in stratified random sampling under linear and non-linear cost functions.

Arun Pal, Rahul Varshney, Subhash Kumar Yadav, Tolga Zaman

Soft Comput., July, 2024

An efficient Hartley-Ross type estimators of nonsensitive and sensitive variables using robust regression methods in sample surveys.

Tolga Zaman, Usman Shazad, Vinay Kumar Yadav

J. Comput. Appl. Math., April, 2024

2023

Efficient Difference and Ratio-Type Imputation Methods under Ranked Set Sampling.

Shashi Bhushan, Anoop Kumar, Tolga Zaman, Aned Al Mutairi

Axioms, June, 2023

2022

An improved class of robust ratio estimators by using the minimum covariance determinant estimation.

Hasan Bulut, Tolga Zaman

Commun. Stat. Simul. Comput., 2022

A new exponential estimators for analysis of COVID-19 risk.

Tolga Zaman, Murat Sagir, Mehmet Sahin

Concurr. Comput. Pract. Exp., 2022

Robust ratio-type estimators for finite population mean in simple random sampling: A simulation study.

Tolga Zaman, Hasan Bulut, Subhash Kumar Yadav

Concurr. Comput. Pract. Exp., 2022

2019

Improvement of modified ratio estimators using robust regression methods.

Tolga Zaman

Appl. Math. Comput., 2019