Ray E. Schafer

5.2k total citations · 3 hit papers
44 papers, 3.6k citations indexed

About

Ray E. Schafer is a scholar working on Statistics and Probability, Safety, Risk, Reliability and Quality and Statistics, Probability and Uncertainty. According to data from OpenAlex, Ray E. Schafer has authored 44 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Statistics and Probability, 14 papers in Safety, Risk, Reliability and Quality and 14 papers in Statistics, Probability and Uncertainty. Recurrent topics in Ray E. Schafer's work include Reliability and Maintenance Optimization (14 papers), Statistical Distribution Estimation and Applications (10 papers) and Software Reliability and Analysis Research (6 papers). Ray E. Schafer is often cited by papers focused on Reliability and Maintenance Optimization (14 papers), Statistical Distribution Estimation and Applications (10 papers) and Software Reliability and Analysis Research (6 papers). Ray E. Schafer collaborates with scholars based in United States. Ray E. Schafer's co-authors include Nozer D. Singpurwalla, Nancy R. Mann, John R. Collins, J. M. Finkelstein, Harry F. Martz, Ray A. Waller, Z. A. Łomnicki, John E. Angus, Sanjeev Sinha and B. K. Kale and has published in prestigious journals such as Journal of the American Statistical Association, Technometrics and Biometrics.

In The Last Decade

Ray E. Schafer

43 papers receiving 3.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Methods for Statistical Analysis of Reliability and Life Data.

1975 977 citations Nancy R. Mann, Ray E. Schafer et al. profile →
Statistical Models and Methods for Lifetime Data

1983 967 citations Ray E. Schafer et al. Technometrics profile →
Statistical Models and Methods for Lifetime Data

1983 547 citations Ray E. Schafer Technometrics profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ray E. Schafer United States	14	1.7k	1.2k	777	354	335	44	3.6k
Asit P. Basu United States	26	2.3k 1.3×	1.5k 1.3×	893 1.1×	365 1.0×	518 1.5×	93	3.5k
Max Engelhardt United States	25	1.2k 0.7×	827 0.7×	400 0.5×	191 0.5×	241 0.7×	90	2.3k
Luis A. Escobar United States	24	1.5k 0.9×	1.3k 1.1×	1.4k 1.9×	140 0.4×	405 1.2×	76	3.4k
G. K. Bhattacharyya United States	24	1.2k 0.7×	786 0.7×	439 0.6×	214 0.6×	224 0.7×	58	2.6k
Tim Bedford United Kingdom	27	562 0.3×	1.2k 1.0×	628 0.8×	436 1.2×	490 1.5×	106	4.2k
Lawrence M. Leemis United States	26	718 0.4×	546 0.5×	633 0.8×	244 0.7×	343 1.0×	113	2.8k
Nozer D. Singpurwalla United States	38	2.5k 1.5×	1.7k 1.4×	2.2k 2.8×	740 2.1×	690 2.1×	178	5.8k
Arthur Cohen United States	37	3.5k 2.0×	1.7k 1.4×	383 0.5×	921 2.6×	631 1.9×	208	5.7k
Govind S. Mudholkar United States	24	2.4k 1.4×	1.5k 1.2×	322 0.4×	458 1.3×	298 0.9×	124	4.3k
Robert Schlaifer United States	15	992 0.6×	703 0.6×	191 0.2×	708 2.0×	1.0k 3.0×	23	4.1k

Countries citing papers authored by Ray E. Schafer

Since Specialization

Citations

This map shows the geographic impact of Ray E. Schafer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ray E. Schafer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ray E. Schafer more than expected).

Fields of papers citing papers by Ray E. Schafer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ray E. Schafer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ray E. Schafer. The network helps show where Ray E. Schafer may publish in the future.

Co-authorship network of co-authors of Ray E. Schafer

This figure shows the co-authorship network connecting the top 25 collaborators of Ray E. Schafer. A scholar is included among the top collaborators of Ray E. Schafer based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ray E. Schafer. Ray E. Schafer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

1.

Angus, John E., et al.. (1985). Failure-Free Period Life Tests. Technometrics. 27(1). 49–56. 8 indexed citations

2.

Angus, John E. & Ray E. Schafer. (1985). Mean Time to Achieve a Failure-Free Requirement. IEEE Transactions on Reliability. R-34(2). 179–183. 1 indexed citations

3.

Angus, John E. & Ray E. Schafer. (1984). Improved Confidence Statements for the Binomial Parameter. The American Statistician. 38(3). 189–189. 13 indexed citations

4.

Schafer, Ray E.. (1983). Bayesian Reliability Analysis. Technometrics. 25(2). 209–210. 167 indexed citations

5.

Schafer, Ray E., Sanjeev Sinha, & B. K. Kale. (1981). Life Testing and Reliability Estimation. Technometrics. 23(3). 310–310. 56 indexed citations

6.

Angus, John E. & Ray E. Schafer. (1980). Statistical Demonstration of Fault-Isolation Requirements. IEEE Transactions on Reliability. R-29(2). 116–121. 1 indexed citations

7.

Schafer, Ray E. & John E. Angus. (1979). Estimation of Weibull Quantiles With Minimum Error in the Distribution Function. Technometrics. 21(3). 367–370. 7 indexed citations

8.

Angus, John E. & Ray E. Schafer. (1979). Estimation of logistic quantiles with minimum lrror in the predicted distribution function. Communication in Statistics- Theory and Methods. 8(13). 1271–1284. 3 indexed citations

9.

Schafer, Ray E. & John E. Angus. (1979). Estimation of Weibull Quantiles with Minimum Error in the Distribution Function. Technometrics. 21(3). 367–367. 2 indexed citations

10.

Schafer, Ray E.. (1976). Modified Estimators for the Binomial Parameter. The American Statistician. 30(2). 98–100. 1 indexed citations

11.

Schafer, Ray E., et al.. (1976). On Procedures for Comparing Two Weibull Populations. Technometrics. 18(2). 231–235. 20 indexed citations

12.

Mann, Nancy R., et al.. (1976). Methods for Statistical Analysis of Reliability and Life Data. Operational Research Quarterly (1970-1977). 27(2). 401–401. 22 indexed citations

13.

Łomnicki, Z. A., Nancy R. Mann, Ray E. Schafer, & Nozer D. Singpurwalla. (1976). Methods for Statistical Analysis of Reliability and Life Data.. Journal of the Royal Statistical Society Series A (General). 139(2). 271–271. 121 indexed citations

14.

Schafer, Ray E., et al.. (1975). Some Characteristics of a Ranking Procedure for Population Parameters Based on Chi-Square Statistics. Technometrics. 17(3). 327–331. 6 indexed citations

15.

Schafer, Ray E.. (1974). A First Course in Probability and Statistics. Technometrics. 16(3). 481–481. 1 indexed citations

16.

Schafer, Ray E., et al.. (1972). A Sequential Probability Ratio Test for Availability. Technometrics. 14(1). 123–123. 2 indexed citations

17.

Schafer, Ray E. & Nozer D. Singpurwalla. (1970). A sequential bayes procedure for reliability demonstration. Naval Research Logistics Quarterly. 17(1). 55–67. 12 indexed citations

18.

Schafer, Ray E., et al.. (1970). Bayesian Reliability Demonstration. Phase 1. Data for the A Priori Distribution. Defense Technical Information Center (DTIC). 2 indexed citations

19.

Schafer, Ray E.. (1970). A Note on the Uniform Prior Distribution for Reliability. IEEE Transactions on Reliability. R-19(2). 76–77. 1 indexed citations

20.

Schafer, Ray E.. (1960). Interval Estimation of Product Reliability by Use of the Noncentral t Distribution. RQC-9(1). 77–81. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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