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Grey Systems

Emerald Group Publishing Ltd. · United Kingdom · Est. 2011

ISSN2043-9385

SJR Q2✓ WOS SCIE✓ Scopus / SJR

/ 100

Medium Risk

Score Breakdown

✓ WoS SCIE/SSCI+25

✓ Scopus Q2+18

Total43

Journal Impact Factor

This journal is indexed in Web of Science (JCR) and has an official Journal Impact Factor. View on Clarivate Master Journal List ↗

SJR Score

0.693

H-Index

SNIP

1.03

Total Works

581

Total Citations

7,758

2yr Mean Citedness

2.84

Free JIF alternative

Aims & Scope✦ Inferred from recent articles

This journal focuses on the development and application of grey systems theory and its related models for forecasting, decision-making, and analysis across various fields. Articles frequently propose novel grey models, often incorporating elements like fuzzy logic, machine learning, or optimization algorithms, to address complex problems involving uncertainty, small sample sizes, and nonlinear dynamics. Applications span areas such as industrial production, energy consumption, environmental issues, economic forecasting, and project management.

AI-summarised from recent articles · verify on the publisher page

⚡ Speed vs Prestige

How does this journal balance review speed with impact level?

SJR Rank

Top 50% in field

General Information

Country / RegionUnited Kingdom

Primary LanguageEnglish

1st Year Published2011

Annual Volume~ 41 articles / year

StatusActive (last: 2026)

Total Publications581

Publisher OrgEmerald Publishing Limited

Submission Info

Peer Review—

Review Time—

Acceptance Rate—

OA License—

OA Rate—

Ethics & Quality

COPE Member✗ No

OASPA Member✗ No

Not on Predatory Lists✓ Yes

Think.Check.Submit Compliance

thinkchecksubmit.org

5/12 · 42%

✅

Do you know the journal / publisher?

Emerald Group Publishing Ltd.

❌

Does the journal have a website?

No URL

✅

Is the ISSN verified?

2043-9385

✅

Indexed in a trusted database?

WoS, Scopus

❌

Peer review process documented?

N/A

❌

Follows ethical publishing standards (COPE)?

N/A

❌

APC fees clearly disclosed?

N/A

✅

Not on predatory/blacklists?

✓ Clean

❌

Long-term digital preservation?

N/A

❌

Plagiarism detection in place?

N/A

❌

Listed in DOAJ (verified OA)?

N/A

✅

Primary language documented?

English

Based on the Think.Check.Submit framework by DOAJ, COPE & OASPA. All data from verified open sources.

Publication & Citation Trend

Articles published

Times cited

2019

2020

2021

2022

2023

2024

2025

2026

Source: OpenAlex · Note: citations accumulate over time so older years appear higher

SJR Quartile by Discipline

Scimago ranks this journal separately in each subject category — its quartile can differ by discipline.

Applied MathematicsQ2

Computer Science (miscellaneous)Q2

Control and Systems EngineeringQ2

Subject Classification

Web of Science Categories

Mathematics, Interdisciplinary Applications

Scopus Categories

Computer Science (miscellaneous)Applied MathematicsControl and Systems Engineering

Research Topics (OpenAlex)

Grey System Theory ApplicationsMulti-Criteria Decision MakingEnergy Load and Power ForecastingForecasting Techniques and ApplicationsOptimization and Mathematical ProgrammingRough Sets and Fuzzy LogicEnergy, Environment, Economic GrowthDiverse Interdisciplinary Research InnovationsResearch studies in VietnamSustainable Supply Chain Management