KHALID UL ISLAM RATHER
Verified @gmail.com
SKUAST-JAMMU MAIN CAMPUS
RESEARCH, TEACHING, or OTHER INTERESTS
Statistics, Probability and Uncertainty, Statistics and Probability, Modeling and Simulation, Numerical Analysis
20
Scopus Publications
114
Scholar Citations
6
Scholar h-index
3
Scholar i10-index
Scopus Publications
- Cardiometabolic markers and serum amh levels in PCOS: can AMH serve as a surrogate cardiometabolic markeR?
Mohammad Ashraf Ganie, Neena Malhotra, Puthiyaveetil Khadar Jabbar, Sarita Aggarwal, Roya Rozati, Rakesh Sahay, Subhankar Chowdhary, Saloni Kamboj, Imtiyaz Ahmad Wani, Taruna Arora,et al.
Springer Science and Business Media LLC - A new class of ratio estimators under different sampling techniques
Eda Gizem Koçyiğit, M. Iqbal Jeelani, and Khalid Ul Islam Rather
Elsevier BV - Enhancing estimation efficiency with proposed estimator: A comparative analysis of Poisson regression-based mean estimators
Yashpal Singh Raghav, Abdullah Ali H. Ahmadini, Ali M. Mahnashi, and Khalid Ul Islam Rather
Elsevier BV - An Efficient Poisson-Distributed Adaptive Cluster Sampling Model Using Randomized Response Strategy
Khalid Ul Islam Rather, Tanveer Ahmad Tarray, Olumide Sunday Adesina, Adedayo Funmi Adedotun, Toluwalase Janet Akingbade, and Onuche G. Odekina
International Information and Engineering Technology Association - Trends of Age at Onset of Menarche Among Indian Women of Reproductive Age and Its Association with the Presence of PCOS and Related Features: A Multicentric Cross Sectional Study
Amlin Shukla, Ganie Mohd Ashraf, V. Sudharsan, Taruna Arora, Khalid Ul Islam Rather, Subhankar Chowdhury, Vanita Suri, Beena Joshi, Prasanta Kumar Bhattacharya, Sarita Agrawal,et al.
Springer Science and Business Media LLC - APPROXIMATE OPTIMUM STRATA BOUNDARIES FOR NEYMAN ALLOCATION UNDER RANKED SET SAMPLING
- Improved Estimators For The Population Mean Under Non-Response
Khalid Ul İslam RATHER and Cem KADILAR
Gazi University Journal of Science
We propose a novel family of estimators for the population mean under non-response and obtain the MSE equation of the suggested estimator for each situation in theory. These theoretical conditions are applied to three popular data sets in literature and we see that the suggested estimators are more efficient than the traditional estimators, such as ratio, regression estimators, in Case 1; whereas, in Case 2, the suggested estimators are also more efficient than the Unal-Kadilar exponential estimators that are more efficient than the traditional estimators for the same data sets. - The New Sub-regression Type Estimator in Ranked Set Sampling
Eda Gizem Koçyiğit and Khalid Ul Islam Rather
Springer Science and Business Media LLC - A New-Fangled Ratio-Type Exponential Estimator for Population Variance using Auxiliary Information
Natural Sciences Publishing - Evaluation of Ranked Set Sampling Methods under Skewed and Unskewed Distributions
Natural Sciences Publishing - Predictive Modelling of Height and Diameter Relationships of Himalayan Chir Pine
Afshan Tabassum, M. Iqbal Jeelani, Manish Sharma, Khalid Ul Islam Rather, Imran Rashid, and Mansha Gul
Agricultural Research Communication Center
Background: In this study 11 height and diameter prediction models were fitted and evaluated for Himalayan Chir pine (Pinus roxburghii) in Jammu region of UT J and K (India). The data were collected from 50 permanent sample plots in uneven aged stands of Pinus roxburghii and total of 500 individual tree height and diameter measurement were used for this study. At initial stage all the models fitted resulted in significant coefficients, besides various selection criteria’s were also used to test the predictive performance of fitted models. The results of these criteria were generated from various libraries of R studio (version 3.5.1, 2018). The models were further cross validated and results revealed Manfred (MG) and Michaelis-Menten2 (MJ) models described the highest amount of height variation in terms of fit statistics and more crucially with lowest prediction error rate as compared to other models. Methods: The study was carried out in Jammu region of UT J and K (India). Data used in this study were collected on 50 permanent sample plots of 0.25 ha in size.In order to achieve stipulated objectives, Height diameter data on 500 trees from Jammu forest division was utilized in this study. Result: The summary statistics of height and diameter variable and the overall summary of the coefficients of various height and diameter models in Jammu forest division are presented. Almost all the coefficients of the statistical models were statistically significant which is an indication that fitted models are capturing the height diameter relationship an important aspect in context to biological realism. - LCMS STUDY OF THE INDIGENOUS FRUITS AND VEGETABLES OF INDIAN HIMALAYAN REGION
Technical University of Cluj Napoca - LOMAX–POWER RAYLEIGH (T-X) DISTRIBUTION, STRUCTURAL PROPERTIES AND APPLICATIONS IN BIOLOGICAL SCIENCES
- Improved regression in ratio type estimators based on robust M-estimation
Khalid Ul Islam Rather, Eda Gizem Koçyiğit, Ronald Onyango, and Cem Kadilar
Public Library of Science (PLoS)
In this article, a new robust ratio type estimator using the Uk’s redescending M-estimator is proposed for the estimation of the finite population mean in the simple random sampling (SRS) when there are outliers in the dataset. The mean square error (MSE) equation of the proposed estimator is obtained using the first order of approximation and it has been compared with the traditional ratio-type estimators in the literature, robust regression estimators, and other existing redescending M-estimators. A real-life data and simulation study are used to justify the efficiency of the proposed estimators. It has been shown that the proposed estimator is more efficient than other estimators in the literature on both simulation and real data studies. - Using Randomized Response to Estimate the Population Mean of a Sensitive Variable under the Influence of Measurement Error
Kuldeep Kumar Tiwari, Sandeep Bhougal, Sunil Kumar, and Khalid Ul Islam Rather
Springer Science and Business Media LLC - New Exponential Ratio Estimator in Ranked Set Sampling
Rather Khalid, Eda Gizem KOÇYİĞİT, and Ceren ÜNAL
Pakistan Journal of Statistics and Operation Research
In this study, we adapted the families of estimators from Ünal and Kadilar (2021) using the exponential function for the population mean in case of non-response for simple random sampling for the estimation of the mean of the population with the RSS (ranked set sampling) method. The equations for the MSE and the bias of the adapted estimators are obtained for RSS and it in theory shows that the proposed estimator is additional efficient than the present RSS mean estimators in the literature. In addition, we support these theoretical results with real COVID-19 real data and conjointly the simulation studies with different distributions and parameters. As a result of the study, it was observed that the efficiency of the proposed estimator was better than the other estimators.
RECENT SCHOLAR PUBLICATIONS
- A New Class of Ratio Estimators under Different Sampling Techniques
EG Koyiğit, MI Jeelani, KUI Rather
Franklin Open, 100230 2025 - Package ‘ImNN’
MI Jeelani, F Jeelani, SA Mir, SN Geelani, MA Lone, NA Pala, F Danish, ...
2025 - ESTIMATING THE POPULATION MEAN USING STRATIFIED DOUBLE UNIFIED RANKED SET SAMPLING FOR ASYMMETRIC DISTRIBUTIONS
MA Alomair, C Peanpailoon, R Andrabi, TUI Rather, KUI Rather
Reliability: Theory & Applications 20 (1 (82)), 557-572 2025 - Enhancing estimation efficiency with proposed estimator: A comparative analysis of Poisson regression-based mean estimators
YS Raghav, AAH Ahmadini, AM Mahnashi, KUI Rather
Kuwait Journal of Science 52 (1), 100282 2025 - Generalized Exponential Ratio Type Estimator for the Finite Population Mean Under Ranked Set Sampling
KUI Rather, EDA KOYİĞİT
Pakistan Journal of Statistics and Operation Research, 409-417 2024 - An Efficient Poisson-Distributed Adaptive Cluster Sampling Model Using Randomized Response Strategy
KUI Rather, TA Tarray, OS Adesina, AF Adedotun, TJ Akingbade, ...
Ingenierie des Systemes d'Information 29 (4), 1315 2024 - Trends of Age at Onset of Menarche Among Indian Women of Reproductive Age and Its Association with the Presence of PCOS and Related Features: A Multicentric Cross Sectional Study
A Shukla, GM Ashraf, V Sudharsan, T Arora, KUI Rather, S Chowdhury, ...
The Journal of Obstetrics and Gynecology of India, 1-8 2024 - APPROXIMATE OPTIMUM STRATA BOUNDARIES FOR NEYMAN ALLOCATION UNDER RANKED SET SAMPLING
KUI Rather, S.E.H Rizvi, Manish Sharma, M. Iqbal Jeelani, Sira Allende, and ...
REVISTA INVESTIGACION OPERACIONAL 45 (3), 354-368 2024 - On Efficient Ratio Estimation of Population Mean by Multivariate Calibration Weightings in Double Sampling for Stratification
EP Clement, VM Etukudoh, Idorenyin O, KUI Rather, Akpan
Journal of Modern Applied Statistical Methods 23 2024 - Improved estimators for the population mean under non-response
KUİ Rather, C KADILAR
Gazi University Journal of Science, 1-1 2023 - Estimation of suitable extractant of nitrogen for onion (Allium cepa L.) growing soils under temperate conditions of Kashmir valley
Roheela Ahmad, Aamir Hassan Mir, Raies A. Bhat, Faisul Rasool, Zahida Rashid ...
Indian Journal of Hill Farming 36 (2), 156-163 2023 - A NEW EXPONENTIAL TYPE RATIO ESTIMATOR FOR THE POPULATION MEAN IN SYSTEMATIC SAMPLING
A Al E’Damat, KUI Rather
Reliability: Theory & Applications 18 (3 (74)), 442-449 2023 - Ratio estimator of population mean using a new linear combination under ranked set sampling
S Riyaz, KUI Rather, S Maqbool, TR Jan
Reliability: Theory & Applications 18 (2 (73)), 479-485 2023 - Predictive Modelling of Height and Diameter Relationships of Himalayan Chir Pine
A Tabassum, MI Jeelani, M Sharma, KUI Rather, I Rashid, M Gul
Agricultural Science Digest-A Research Journal 43 (2), 170-175 2023 - Evaluation of Ranked Set Sampling Methods under Skewed and Unskewed Distributions
MI Jeelani, A AL e’damat, I Rashid, SNZ Geelani, A Tabassum, ...
2023 - A New-Fangled Ratio-Type Exponential Estimator for Population Variance using Auxiliary Information
KUI Rather, A AL e’damat, TA Tarray, MI Jeelani
Journal of Statistics Applications & Probability 12 (2), 629-633 2023 - Approximate Optimum Strata Boundaries for Proportional Allocation using Ranked Set Sampling
KUI Rather, SEH Rizvi, M Sharma, MI Jeelani, F Danish
Reliability: Theory & Applications 18 (1 (72)), 161-171 2023 - Neural Network Modeling of Height Diameter Relationships for Himalayan Pine through Back Propagation Approach
MI Jeelani, A Tabassum, KUI Rather, M Gul
Journal of The Indian Society of Agricultural Statistics 76 (3), 169-178 2023 - The New Sub-Regression Type Estimator in Ranked Set Sampling
EDA Koyiğit, KUI Rather
JOURNAL OF STATISTICAL THEORY AND PRACTICE 2023 - LOMAX–POWER RAYLEIGH (TX) DISTRIBUTION, STRUCTURAL PROPERTIES AND APPLICATIONS IN BIOLOGICAL SCIENCES
SQU Ain, KUI Rather, R Tripathi
Pak. J. Statist 39 (1), 29-44 2023
MOST CITED SCHOLAR PUBLICATIONS
- Using randomized response to estimate the population mean of a sensitive variable under the influence of measurement error
KK Tiwari, S Bhougal, S Kumar, KUI Rather
Journal of Statistical Theory and Practice 16 (2), 28 2022
Citations: 13 - New exponential ratio estimator in Ranked set sampling
KUI Rather, EG Koyiğit, C nal
Pakistan Journal of Statistics and operation research, 403-409 2022
Citations: 12 - Exponential type estimator for The population mean under Ranked set sampling
KUI Rather, C Kadilar
Journal of Statistics: Advances in Theory and Applications 25 (1), 1-12 2021
Citations: 10 - Improved regression in ratio type estimators based on robust M-estimation
KUI Rather, EG Koyiğit, R Onyango, C Kadilar
Plos one 17 (12), e0278868 2022
Citations: 9 - A new exponential ratio type estimator for the population means using information on auxiliary attribute
KUI Rather, MI Jeelani, SEH Rizvi, M Sharma
J. Stat. Appl. Pro. Lett 9, 31-42 2022
Citations: 7 - Dual to ratio cum product type of exponential estimator for population mean in stratified random sampling
KUI Rather, C Kadilar
Journal of Statistics Applications & Probability Letters 9 (1), 43-48 2022
Citations: 7 - The New Sub-Regression Type Estimator in Ranked Set Sampling
EDA Koyiğit, KUI Rather
JOURNAL OF STATISTICAL THEORY AND PRACTICE 2023
Citations: 6 - A New Data Gathering Exponential Type Ratio Estimator for the Population Mean
TA Tarray, ZA Ganie, KUI Rather
Journal of Scientific Research and Reports 28 (10), 148-153 2022
Citations: 6 - Neural Network Modeling of Height Diameter Relationships for Himalayan Pine through Back Propagation Approach
MI Jeelani, A Tabassum, KUI Rather, M Gul
Journal of The Indian Society of Agricultural Statistics 76 (3), 169-178 2023
Citations: 5 - Generalized exponential ratio estimator of population mean using two auxiliary variables in simple random sampling with an application to agricultural data
S Riyaz, R Jan, S Maqbool, TR Jan, KUI Rather
J. Stat. Appl. Probab. Lett 9 (2), 89-99 2022
Citations: 5 - Optimum Stratification for Equal Allocation using Ranked Set Sampling as Method of Selection
KUI Rather, SEH Rizvi, M Sharma, MI Jeelani
International Journal of Statistics and applied mathematics 7 (2), 63-67 2022
Citations: 4 - UNEXPECTED RAMIFICATIONS OF CORONA PANDEMIC ECONOMIC AND STATISTICAL ISSUES
R Yousuf, KUI Rather, S Farhat
IMPACT: International Journal of Research in Business (Management IMPACT 2020
Citations: 4 - Estimation of rare sensitive parameter under Poisson approximation using stratified three stage randomized response model
KUI Rather, TA Tarray
Journal of Science and Arts 22 (4), 829-836 2022
Citations: 3 - Modified ratio cum product type exponential estimator of population mean in stratified random sampling
KUI Rather, CN Bouza, SEH Rizvi, M Sharma, MIJ Bhat
Revista Investigacin Operacional 43 (5), 653-663 2022
Citations: 3 - Approximate Optimum Strata Boundaries for Equal Allocation under Ranked Set Sampling
KUI Rather, SEH Rizvi
Journal of Scientific Research 66 (3), 302-307 2022
Citations: 3 - Empirical Study Of Liquidity Risk Indicators In Indian Private Banks.
SRI Andrabi, G Brindha, KUI Rather
Turkish Online Journal of Qualitative Inquiry 12 (9) 2021
Citations: 3 - Improved estimators for the population mean under non-response
KUİ Rather, C KADILAR
Gazi University Journal of Science, 1-1 2023
Citations: 2 - Ratio estimator of population mean using a new linear combination under ranked set sampling
S Riyaz, KUI Rather, S Maqbool, TR Jan
Reliability: Theory & Applications 18 (2 (73)), 479-485 2023
Citations: 2 - Predictive Modelling of Height and Diameter Relationships of Himalayan Chir Pine
A Tabassum, MI Jeelani, M Sharma, KUI Rather, I Rashid, M Gul
Agricultural Science Digest-A Research Journal 43 (2), 170-175 2023
Citations: 2 - Difference-cum-exponential efficient estimator of population variance
KUI Rather, MI Jeelani, MY Shah, A Tabassum, SEH Rizvi
Journal of Science and Arts 22 (2), 367-374 2022
Citations: 2