World's Best Scientists 2026 revealed!
Song Xi Chen

Song Xi Chen

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Mathematics 40 2026 1779 108 105 106 7609

Song Xi Chen publications per year

The chart shows the history of publications by Song Xi Chen between 1990 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Song Xi Chen published across 37 years, from 1990 to 2026, averaging 4.1 papers a year. Output peaked at 11 publications in 2021. 9 of the 150 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1990 to 2026. Vertical axis: number of publications, 0 to 11. Peak 11 publications in 2021. 1990: 1 publication 1991: 0 publications 1992: 0 publications 1993: 2 publications 1994: 3 publications 1995: 0 publications 1996: 3 publications 1997: 1 publication 1998: 2 publications 1999: 4 publications 2000: 6 publications 2001: 1 publication 2002: 5 publications 2003: 6 publications 2004: 0 publications 2005: 1 publication 2006: 2 publications 2007: 4 publications 2008: 1 publication 2009: 8 publications 2010: 7 publications 2011: 6 publications 2012: 5 publications 2013: 6 publications 2014: 1 publication 2015: 2 publications 2016: 7 publications 2017: 2 publications 2018: 4 publications 2019: 5 publications 2020: 8 publications 2021: 11 publications 2022: 8 publications 2023: 10 publications 2024: 9 publications 2025: 8 publications 2026: 1 publication
1990 2026

150 publications in total across all disciplines

View publications per year as a table
Song Xi Chen: publications per year, 1990 to 2026
Year Publications
1990 1
1991 0
1992 0
1993 2
1994 3
1995 0
1996 3
1997 1
1998 2
1999 4
2000 6
2001 1
2002 5
2003 6
2004 0
2005 1
2006 2
2007 4
2008 1
2009 8
2010 7
2011 6
2012 5
2013 6
2014 1
2015 2
2016 7
2017 2
2018 4
2019 5
2020 8
2021 11
2022 8
2023 10
2024 9
2025 8
2026 1
Total 150
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Song Xi Chen 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 Song Xi Chen sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 100 bars. Horizontal axis: publications, 42–46 to 537+. Vertical axis: number of scientists, 0 to 112. Most scientists, 112, have 142–146 publications. The last bar groups every scientist with 537 publications or more. The highlighted bar, 102–106 publications, is where this scientist sits. 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 scientist 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientist 522–526 publications: 3 scientists 527–531 publications: 1 scientist 532–536 publications: 4 scientists 537+ publications: 100 scientists
42–46 publications 537+

This scientist: 106 publications — 14th percentile

14% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Mathematics scientists by publication count, Research.com 2026 ranking edition. Based on 3,584 ranked scientists.
Publications Scientists This scientist
42–46 3
47–51 5
52–56 7
57–61 20
62–66 14
67–71 25
72–76 19
77–81 35
82–86 50
87–91 60
92–96 86
97–101 84
102–106 83 106
107–111 90
112–116 99
117–121 90
122–126 91
127–131 109
132–136 110
137–141 98
142–146 112
147–151 102
152–156 88
157–161 106
162–166 83
167–171 102
172–176 77
177–181 81
182–186 78
187–191 71
192–196 92
197–201 64
202–206 69
207–211 64
212–216 62
217–221 58
222–226 53
227–231 50
232–236 46
237–241 46
242–246 46
247–251 43
252–256 29
257–261 45
262–266 30
267–271 33
272–276 34
277–281 30
282–286 31
287–291 21
292–296 34
297–301 26
302–306 10
307–311 17
312–316 23
317–321 13
322–326 16
327–331 26
332–336 13
337–341 13
342–346 16
347–351 17
352–356 12
357–361 18
362–366 18
367–371 9
372–376 11
377–381 8
382–386 8
387–391 9
392–396 9
397–401 8
402–406 11
407–411 6
412–416 6
417–421 9
422–426 8
427–431 5
432–436 8
437–441 8
442–446 4
447–451 4
452–456 4
457–461 2
462–466 2
467–471 4
472–476 3
477–481 3
482–486 6
487–491 3
492–496 5
497–501 5
502–506 1
507–511 6
512–516 4
517–521 1
522–526 3
527–531 1
532–536 4
537+ 100
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Song Xi Chen 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 Song Xi Chen sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 57 bars. Horizontal axis: D-Index, 30 to 86+. Vertical axis: number of scientists, 0 to 174. Most scientists, 174, have 30 D-Index. The last bar groups every scientist with 86 D-Index or more. The highlighted bar, 40 D-Index, is where this scientist sits. 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: 40 D-Index — 45th percentile

45% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Mathematics scientists by D-index, Research.com 2026 ranking edition. Based on 3,584 ranked scientists.
D-Index Scientists This scientist
30 174
31 151
32 174
33 117
34 136
35 127
36 145
37 153
38 150
39 150
40 138 40
41 136
42 93
43 108
44 115
45 112
46 103
47 75
48 59
49 67
50 60
51 57
52 59
53 62
54 60
55 50
56 42
57 54
58 50
59 42
60 41
61 35
62 40
63 21
64 31
65 27
66 29
67 19
68 25
69 17
70 18
71 12
72 14
73 13
74 18
75 9
76 11
77 10
78 9
79 16
80 12
81 10
82 5
83 5
84 13
85 6
86+ 99
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Research.com Recognitions

  • 2009 - Fellow of the American Statistical Association (ASA)

Overview

Song Xi Chen is affiliated with Peking University in China and has contributed extensively to the fields of Environmental Science and Mathematics. Their research spans multiple subfields including Statistics and Probability, Atmospheric Science, Health, Toxicology and Mutagenesis, Global and Planetary Change, and Modeling and Simulation.

The major topics of Song Xi Chen's work include:

  • Air Quality and Health Impacts
  • COVID-19 epidemiological studies
  • Atmospheric chemistry and aerosols
  • Statistical Methods and Inference
  • COVID-19 Pandemic Impacts
  • Air Quality Monitoring and Forecasting
  • Atmospheric and Environmental Gas Dynamics

Frequent co-authors collaborating with Song Xi Chen are:

  • Yumou Qiu
  • Yuru Zhu
  • Jia Gu
  • Yaxuan Huang
  • Haoxuan Sun

Song Xi Chen has published in several notable venues, including:

  • arXiv (Cornell University)
  • The Annals of Statistics
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Atmospheric Environment
  • Environmetrics

Selected recent papers authored or co-authored by Song Xi Chen include:

  • "Estimating the aboveground biomass of coniferous forest in Northeast China using spectral variables, land surface temperature and soil moisture," 2021, The Science of The Total Environment
  • "Tracking and Predicting COVID-19 Epidemic in China Mainland," 2020, bioRxiv (Cold Spring Harbor Laboratory)
  • "Relative importance of meteorological variables on air quality and role of boundary layer height," 2021, Atmospheric Environment
  • "Tracking Reproductivity of COVID-19 Epidemic in China with Varying Coefficient SIR Model," 2021, Journal of Data Science
  • "Distributed statistical inference for massive data," 2021, The Annals of Statistics

In recognition of professional contributions, Song Xi Chen was awarded the distinction of Fellow of the American Statistical Association in 2009.

Best Publications

  • Beta kernel estimators for density functions

    Song Xi Chen

  • Probability Density Function Estimation Using Gamma Kernels

    Song Xi Chen

  • Tests for High-Dimensional Covariance Matrices

    Song Xi Chen;Li Xin Zhang;Ping Shou Zhong

  • Assessing Beijing's PM2.5 pollution: Severity, weather impact, APEC and winter heating

    Xuan Liang;Tao Zou;Bin Guo;Shuo Li

  • Smoothed empirical likelihood confidence intervals for quantiles

    Song Xi Chen;Peter Hall

  • Two sample tests for high-dimensional covariance matrices

    Jun Li;Song Xi Chen

  • Nonparametric estimation of copula functions for dependence modelling

    Song Xi Chen;Tzee-Ming Huang

  • Nonparametric Estimation of Expected Shortfall

    Song Xi Chen

  • Cautionary tales on air-quality improvement in Beijing.

    Shuyi Zhang;Bin Guo;Anlan Dong;Jing He

  • Nonparametric Inference of Value-at-Risk for Dependent Financial Returns

    Song Xi Chen;Cheng Yong Tang

  • Parameter estimation and bias correction for diffusion processes

    Cheng Yong Tang;Song Xi Chen;Song Xi Chen

  • A review on empirical likelihood methods for regression

    Song Xi Chen;Song Xi Chen;Ingrid Van Keilegom

  • PM2.5 Data Reliability, Consistency and Air Quality Assessment in Five Chinese Cities†

    Xuan Liang;Shuo Li;Shuyi Zhang;Hui Huang

  • EMPIRICAL LIKELIHOOD FOR ESTIMATING EQUATIONS WITH MISSING VALUES

    Dong Wang;Song Xi Chen

  • Empirical Likelihood Confidence Intervals for Linear Regression Coefficients

    S.X. Chen

  • On the accuracy of empirical likelihood confidence regions for linear regression model

    Song Xi Chen

  • Empirical likelihood confidence intervals for nonparametric density estimation

    Song Xi Chen

  • Tests for high-dimensional regression coefficients with factorial designs

    Ping Shou Zhong;Song Xi Chen

  • Effects of data dimension on empirical likelihood

    Song Xi Chen;Liang Peng;Ying-Li Qin

  • An empirical likelihood goodness-of-fit test for time series

    Song Xi Chen;Wolfgang Härdle;Ming Li

Frequent Co-Authors

Jiti Gao
Jiti Gao Monash University
Liang Peng
Liang Peng Georgia State University
Wolfgang Karl Härdle
Wolfgang Karl Härdle Humboldt-Universität zu Berlin
Aurore Delaigle
Aurore Delaigle University of Melbourne
Dan Nettleton
Dan Nettleton Iowa State University
Yuming Guo
Yuming Guo Monash University
Paul S. F. Yip
Paul S. F. Yip University of Hong Kong

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