SciSight Ecosystem
WoS SCIE Q1Scopus Q2SCImago #10,666CAS 2区Subscription

Grey Systems-Theory and Application

Abbreviation (ISO):GREY SYST
Country: England•WoS SCIE Quartile: Q1•Scopus SJR: 0.556•SCImago Rank: #10,666•Identifier (ISSN):2043-9377(Print)/2043-9385(Online)•Articles / Year: 35•Estimated Publication Fee (APC): $2,992 USD
Clarivate IF (2026)Q1
4.6
↑ +0.2

Leading citation impact metric from Clarivate Journal Citation Reports

JCR Release Date: 2026-06-17
H-Index (Hirsch Index)
35

35 papers with at least that number of citations each

WoS: SCIE / JCRQ1
Self-Citation Rate34.4%
Safe Level (< 15%)Warning Level (> 20%)
Self-citation below 15% indicates strong scholarly independence.
Volume & Open AccessSubscription
35articles/year
0% Gold OA•92.31% Original Research

State Council for Professorship (HĐGSNN) Scoring

Quyết định số 26/QĐ-HĐGSNN ngày 11/7/2025 (Mục quốc tế)

2.50pts
Latest Max Score
Estimated (Dec 26)
Scoring Basis: WoS Q1 có IF ≥ 3.0(IF: 4.6)

HĐGSNN Score History

By article publication year
YearMax ScoreEvaluation DetailsSource
20262.50đ
WoS Q1 có IF ≥ 3.0(IF: 4.6)
🔵 Computed
20252.50đ
WoS Q1 có IF ≥ 3.0(IF: 4.4)
🔵 Computed
20242.50đ
WoS Q1 có IF ≥ 3.0(IF: 3.2)
🔵 Computed
20232.00đ
WoS Q1(IF: 2.9)
🔵 Computed
20222.00đ
WoS Q1(IF: 2.188)
🔵 Computed
20212.50đ
WoS Q1 có IF ≥ 3.0(IF: 3.321)
🔵 Computed
20202.00đ
WoS Q1(IF: 2.268)
🔵 Computed

Note: Domestic journal scores are officially collected from annual HĐGSNN decisions across councils. International journal scores are dynamically computed according to Decision 26/QĐ-HĐGSNN based on quartile and citation metrics in the publication year.

Aims & Scope

Grey Systems-Theory and Application is a leading international peer-reviewed journal publishing original research, clinical updates, and reviews indexed in Clarivate Web of Science (SCIE) with Q1 quartile ranking.

Topics Covered (Recognized by AI)
Computer science90.7%Mathematics87.6%Economics62.2%Statistics60.6%Engineering54.3%Machine learning48.2%Artificial intelligence47.5%Physics43.9%Biology42.8%Political science42.3%Law41.4%Business31.7%Philosophy30.5%Data mining29.2%Psychology27.4%Operations research27.1%Programming language27.1%Quantum mechanics26.5%Mathematical economics26%Chemistry26%Sociology23.5%Mathematical optimization21.9%Geography21.7%Medicine20.1%

SCImago & Scopus Journal Intelligence

Global SCImago ranking, SJR prestige index, Scopus coverage, and societal policy impact

Rank #10,666Scopus Q2SCImago Profile
Scopus Coverage:2011-2026
Scopus Broad Areas:Computer ScienceEngineeringMathematics
Scopus Citation Rank (SJR)Q2
0.556

Weighted prestige citation metric per document indexed in the Scopus database.

Tứ phân vị: Scopus Q2
Scopus H-Index (2025)
35

Measures cumulative publication volume and citation impact.

Scopus Database Indexed (2025)
Citations / Doc (2 years)
3.57

Average citations received per document published in the 2-year window.

2-Year Citation Window
Estimated Publication Fee (APC)
$2,992 USD

Estimated Article Processing Charge for Open Access publication.

Chi phí ước tính / bài báo

Scopus 3-Year Publication & Citation Window

3-Year Citations444
3-Year Documents124
Citable Documents121

Aggregated from Scopus database across the 3-year SJR evaluation window.

Societal Impact & Inclusivity (SCImago)

Policy Citations (Overton)0

Citations in government and international policy documents

Female Author Rate39.9%

Percentage of female authors published in the journal

Real-world societal policy reach and author gender diversity tracked by SCImago.

Scopus Subject Categories

Applied MathematicsQ2
Computer Science (miscellaneous)Q2
Control and Systems EngineeringQ2

Chinese Academy of Sciences (CAS) Classification

Major / minor zone classification and CAS Early Warning List history

Major Category (Broad Field):
2区 (Zone 2)Engineering & Technology
Minor Category (Specific Field):
2区MATHEMATICS, INTERDISCIPLINARY APPLICATIONS
CAS Early Warning List History:
Updated annually: 2020 – 2024
2020
Not warned
2021
Not warned
2022
Not warned
2023
Not warned
2024
Not warned

Publishing & Editorial Information

Detailed publisher, peer-review turnaround, and publication cycle specifications

Publisher Review Speed
Updating
Average time to first editorial decision
Online Publication Speed
Updating
Time from acceptance to online publication
Official Acceptance Rate
Updating
Manuscript acceptance rate confirmed by the publisher
Open Access Model
Subscription
OA publishing option or traditional subscription
Publisher
EMERALD GROUP PUBLISHING LTD
Publication Language
English
Frequency
Periodic
Editorial Address
HOWARD HOUSE, WAGON LANE, BINGLEY, ENGLAND, W YORKSHIRE, BD16 1WA
Indexing & Databases
SCIEPubMed

WoS Categories & Quartiles

Detailed JCR / JCI category rankings and quartile breakdown from Clarivate

Clarivate JCR & JCI
CategoryIndexRankQuartile
MATHEMATICS, INTERDISCIPLINARY APPLICATIONS
JCRSCIE
10/137Q1
MATHEMATICS, INTERDISCIPLINARY APPLICATIONS
JCISCIE
13/137Q1

Annual Historical Statistics & Publications

Track annual publication volume, total citations, and Impact Factor evolution

12 year
YearImpact FactorArticles / YearTotal Citations
2026—2915
20254.450170
20243.229196
20232.943491
20222.18827413
20213.32135397
20202.268701,121
2019—36564
2018—36603
2017—46672
2016—34464
2015—31419
Academic Metric Intelligence

Journal Metrics & Citation Visualizations

Impact Factor Trend (2018–2024)

Clarivate IF trend for Grey Systems-Theory and Application

WoS Q1
13462020202120222023202420254.40
Annual Impact Factor Metric
2025:4.4

Total Cites vs Self-Cites

Evaluation of scholarly independence and citation reach

Total citations steady growth
Self-citation: 34.4%

Citations per Document

Citation metric windows across 2, 3, and 4 years

Cites / Doc (4 years)Cites / Doc (3 years)Cites / Doc (2 years)

Similar Journals in Discipline

Journals in the same research field with comparable impact metrics

Record UUID: 80bc713f-13f4-408f-8492-5c0ca0af7b8c
Database Updated: 2026-10-01