World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
58
Citations
9366
World Ranking
655
National Ranking
33

Sik-Yum Lee publication distribution in Mathematics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mathematics in 2026. The highlighted bar marks where Sik-Yum Lee sits on this spectrum.

42–46 publications: 3 scientists 47–51 publications: 5 scientists 52–56 publications: 7 scientists 57–61 publications: 20 scientists 62–66 publications: 14 scientists 67–71 publications: 25 scientists 72–76 publications: 19 scientists 77–81 publications: 35 scientists 82–86 publications: 50 scientists 87–91 publications: 60 scientists 92–96 publications: 86 scientists 97–101 publications: 84 scientists 102–106 publications: 83 scientists 107–111 publications: 90 scientists 112–116 publications: 99 scientists 117–121 publications: 90 scientists 122–126 publications: 91 scientists 127–131 publications: 109 scientists 132–136 publications: 110 scientists 137–141 publications: 98 scientists 142–146 publications: 112 scientists 147–151 publications: 102 scientists 152–156 publications: 88 scientists 157–161 publications: 106 scientists 162–166 publications: 83 scientists 167–171 publications: 102 scientists 172–176 publications: 77 scientists 177–181 publications: 81 scientists 182–186 publications: 78 scientists 187–191 publications: 71 scientists 192–196 publications: 92 scientists 197–201 publications: 64 scientists 202–206 publications: 69 scientists 207–211 publications: 64 scientists 212–216 publications: 62 scientists 217–221 publications: 58 scientists 222–226 publications: 53 scientists 227–231 publications: 50 scientists 232–236 publications: 46 scientists 237–241 publications: 46 scientists 242–246 publications: 46 scientists 247–251 publications: 43 scientists 252–256 publications: 29 scientists 257–261 publications: 45 scientists 262–266 publications: 30 scientists 267–271 publications: 33 scientists 272–276 publications: 34 scientists 277–281 publications: 30 scientists 282–286 publications: 31 scientists 287–291 publications: 21 scientists 292–296 publications: 34 scientists 297–301 publications: 26 scientists 302–306 publications: 10 scientists 307–311 publications: 17 scientists 312–316 publications: 23 scientists 317–321 publications: 13 scientists 322–326 publications: 16 scientists 327–331 publications: 26 scientists 332–336 publications: 13 scientists 337–341 publications: 13 scientists 342–346 publications: 16 scientists 347–351 publications: 17 scientists 352–356 publications: 12 scientists 357–361 publications: 18 scientists 362–366 publications: 18 scientists 367–371 publications: 9 scientists 372–376 publications: 11 scientists 377–381 publications: 8 scientists 382–386 publications: 8 scientists 387–391 publications: 9 scientists 392–396 publications: 9 scientists 397–401 publications: 8 scientists 402–406 publications: 11 scientists 407–411 publications: 6 scientists 412–416 publications: 6 scientists 417–421 publications: 9 scientists 422–426 publications: 8 scientists 427–431 publications: 5 scientists 432–436 publications: 8 scientists 437–441 publications: 8 scientists 442–446 publications: 4 scientists 447–451 publications: 4 scientists 452–456 publications: 4 scientists 457–461 publications: 2 scientists 462–466 publications: 2 scientists 467–471 publications: 4 scientists 472–476 publications: 3 scientists 477–481 publications: 3 scientists 482–486 publications: 6 scientists 487–491 publications: 3 scientists 492–496 publications: 5 scientists 497–501 publications: 5 scientists 502–506 publications: 1 scientists 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientists 522–526 publications: 3 scientists 527–531 publications: 1 scientists 532–536 publications: 4 scientists 537+ publications: 100 scientists
42 publications 537+

This scientist: 187 publications — 57th percentile

57% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 537 publications or more.

Sik-Yum Lee D-index placement in Mathematics in 2026

The chart shows the D-index (discipline H-index) distribution of Mathematics scientists ranked by Research.com in 2026. The highlighted bar marks where Sik-Yum Lee sits on this spectrum.

30 D-Index: 174 scientists 31 D-Index: 151 scientists 32 D-Index: 174 scientists 33 D-Index: 117 scientists 34 D-Index: 136 scientists 35 D-Index: 127 scientists 36 D-Index: 145 scientists 37 D-Index: 153 scientists 38 D-Index: 150 scientists 39 D-Index: 150 scientists 40 D-Index: 138 scientists 41 D-Index: 136 scientists 42 D-Index: 93 scientists 43 D-Index: 108 scientists 44 D-Index: 115 scientists 45 D-Index: 112 scientists 46 D-Index: 103 scientists 47 D-Index: 75 scientists 48 D-Index: 59 scientists 49 D-Index: 67 scientists 50 D-Index: 60 scientists 51 D-Index: 57 scientists 52 D-Index: 59 scientists 53 D-Index: 62 scientists 54 D-Index: 60 scientists 55 D-Index: 50 scientists 56 D-Index: 42 scientists 57 D-Index: 54 scientists 58 D-Index: 50 scientists 59 D-Index: 42 scientists 60 D-Index: 41 scientists 61 D-Index: 35 scientists 62 D-Index: 40 scientists 63 D-Index: 21 scientists 64 D-Index: 31 scientists 65 D-Index: 27 scientists 66 D-Index: 29 scientists 67 D-Index: 19 scientists 68 D-Index: 25 scientists 69 D-Index: 17 scientists 70 D-Index: 18 scientists 71 D-Index: 12 scientists 72 D-Index: 14 scientists 73 D-Index: 13 scientists 74 D-Index: 18 scientists 75 D-Index: 9 scientists 76 D-Index: 11 scientists 77 D-Index: 10 scientists 78 D-Index: 9 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 10 scientists 82 D-Index: 5 scientists 83 D-Index: 5 scientists 84 D-Index: 13 scientists 85 D-Index: 6 scientists 86+ D-Index: 99 scientists
30 D-Index 86+

This scientist: 58 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 86 D-Index or more.

Research.com Recognitions

  • 2004 - Fellow of the American Statistical Association (ASA)

Overview

Sik-Yum Lee was affiliated with the Chinese University of Hong Kong in China. Their research contributed to the field of statistics, with a particular focus reflected in published works and collaborations.

The scientist coauthored research with:

  • Hongtu Zhu
  • Joseph G. Ibrahim
  • Heping Zhang

One of Lee's recent publications is titled "Perturbation selection and influence measures in local influence analysis", published in 2021 in UNC Libraries. This paper has been cited 11 times.

Lee's work appeared primarily in the venue:

  • UNC Libraries

In 2004, Lee was recognized as a Fellow of the American Statistical Association (ASA).

Best Publications

  • Structural Equation Modeling: A Bayesian Approach

    Sik-Yum Lee

  • Evaluation of the Bayesian and Maximum Likelihood Approaches in Analyzing Structural Equation Models with Small Sample Sizes.

    Sik-Yum Lee;Xin-Yuan Song

  • Local Polynomial Fitting in Semivarying Coefficient Model

    Wenyang Zhang;Sik-Yum Lee;Xinyuan Song

  • A two-stage estimation of structural equation models with continuous and polytomous variables.

    Sik-Yum Lee;Wai-Yin Poon;P. M. Bentler

  • Local influence for incomplete data models

    Hong Tu Zhu;Sik Yum Lee

  • Basic and Advanced Bayesian Structural Equation Modeling: With Applications in the Medical and Behavioral Sciences

    Xin-Yuan Song;Sik-Yum Lee

  • A study of algorithms for covariance structure analysis with specific comparisons using factor analysis

    Sik-yum Lee;R. I. Jennrich

  • Maximum likelihood estimation of multivariate polyserial and polychoric correlation coefficients

    Wai-Yin Poon;Sik-Yum Lee

  • STRUCTURAL EQUATION MODELS WITH CONTINUOUS AND POLYTOMOUS VARIABLES

    Sik-Yum Lee;Wai-Yin Poon;P. M. Bentler

  • Latent variable models with mixed continuous and polytomous data

    J.-Q. Shi;S.-Y. Lee

  • Perturbation selection and influence measures in local influence analysis

    Hongtu Zhu;Joseph G. Ibrahim;Joseph G. Ibrahim;Sikyum Lee;Sikyum Lee;Heping Zhang;Heping Zhang

  • Maximum likelihood estimation of nonlinear structural equation models

    Sik Yum Lee;Hong Tu Zhu

  • AN ANALYSIS OF THE RELATIONSHIP BETWEEN LANGUAGE ATTITUDES AND ENGLISH ATTAINMENT OF SECONDARY STUDENTS IN HONG KONG

    Herbert D. Pierson;Gail S. Fu;Sik-yum Lee

  • Structural Equation Modeling

    Sik-Yum Lee

  • Longitudinal Analysis of Quality of Life for Stroke Survivors Using Latent Curve Models

    Jun Hao Pan;Xin Yuan Song;Sik Yum Lee;Timothy Kwok

  • Bayesian sampling-based approach for factor analysis models with continuous and polytomous data

    Jian-Qing Shi;Sik-Yum Lee

  • Case-deletion measures for models with incomplete data

    Hongtu Zhu;Sik‐Yum Lee;Bo‐Cheng Wei;Julie Zhou

  • Full maximum likelihood analysis of structural equation models with polytomous variables

    Sik-Yum Lee;Wai-Yin Poon;P.M. Bentler

  • Bayesian analysis of structural equation models with dichotomous variables

    Sik-Yum Lee;Xin-Yuan Song

  • A Three-Stage Estimation Procedure for Structural Equation Models with Polytomous Variables.

    Sik-Yum Lee;Wai-Yin Poon;P. M. Bentler

Frequent Co-Authors

Xin-Yuan Song
Xin-Yuan Song Chinese University of Hong Kong
Peter M. Bentler
Peter M. Bentler University of California, Los Angeles
Yih-Ing Hser
Yih-Ing Hser University of California, Los Angeles
Wing-Yee So
Wing-Yee So Chinese University of Hong Kong
Joseph G. Ibrahim
Joseph G. Ibrahim University of North Carolina at Chapel Hill
Juliana C.N. Chan
Juliana C.N. Chan Chinese University of Hong Kong
Robert I. Jennrich
Robert I. Jennrich University of California, Los Angeles
Kwok Leung
Kwok Leung Chinese University of Hong Kong
Suzanne M. Skevington
Suzanne M. Skevington University of Manchester
Fanny M. Cheung
Fanny M. Cheung Chinese University of Hong Kong

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