---
title: "Anomaly detection research: papers and trends"
description: "From 2017 to 2026 (so far), the keyword “anomaly detection” appeared in 1,018 papers in the tracked journals, most of them in AI (848), operations research (81) and information systems (26)."
url: https://scholar4ai.com/keywords/anomaly-detection
markdown_url: https://scholar4ai.com/keywords/anomaly-detection.md
license: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/)
share_text: "From 2017 to 2026 (so far), the keyword “anomaly detection” appeared in 1,018 papers in the tracked journals, most of them in AI (848), operations research (81) and information systems (26). (as of 2026-11-04)"
data_url: https://scholar4ai.com/data/rankings.json
updated: 2026-11-04T00:03:46+09:00
window: 2026-10-06 to 2026-11-04
source: OpenAlex (CC0)
---

# Papers on “anomaly detection”

Research on “anomaly detection” in the 480 tracked journals: papers per year and category, the journals, institutions and countries publishing it, the keywords studied with it and its most-cited papers. It is not among the most frequent keywords of the last 30 days, so this page has no list of its latest papers.

Back to the ranking: https://scholar4ai.com/rankings/keywords.md

## Key findings

- From 2017 to 2026 (so far), the keyword “anomaly detection” appeared in 1,018 papers in the tracked journals, most of them in AI (848), operations research (81) and information systems (26).
- 198 of them were published in 2025, against 30 in 2017.
- Since 2023, the institutions with the most of these papers were Chinese Academy of Sciences (15), Sichuan University (14) and Tsinghua University (12).
- The journals publishing most of them were Expert Systems with Applications (117), Knowledge-Based Systems (61) and Pattern Recognition (41).
- The most-cited of them is “Generalized Out-of-Distribution Detection: A Survey” (International Journal of Computer Vision, 2024), with 885 citations.

## Papers per year

*Papers per publication year and category*

| Category | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 (so far) |
|---|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|
| [AI](https://scholar4ai.com/categories/ai.md) | 26 | 24 | 35 | 54 | 96 | 82 | 102 | 100 | 166 | 163 |
| [Operations Research](https://scholar4ai.com/categories/operations-research.md) | 1 | 0 | 1 | 5 | 10 | 6 | 14 | 13 | 18 | 13 |
| [Information Systems](https://scholar4ai.com/categories/information-systems.md) | 0 | 0 | 1 | 1 | 0 | 4 | 6 | 3 | 4 | 7 |
| [Statistics](https://scholar4ai.com/categories/statistics.md) | 1 | 0 | 1 | 4 | 7 | 2 | 1 | 1 | 4 | 3 |
| [Finance](https://scholar4ai.com/categories/finance.md) | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 3 | 2 | 4 |
| [Management](https://scholar4ai.com/categories/management.md) | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 2 | 3 |
| [Economics](https://scholar4ai.com/categories/economics.md) | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 2 |
| [Accounting](https://scholar4ai.com/categories/accounting.md) | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 |
| [Higher Education and Research](https://scholar4ai.com/categories/higher-education-and-research.md) | 1 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
| [Health Economics and Policy](https://scholar4ai.com/categories/health-economics-and-policy.md) | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| [Marketing](https://scholar4ai.com/categories/marketing.md) | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| All categories | 30 | 25 | 41 | 66 | 114 | 98 | 127 | 123 | 198 | 196 |

## Where the papers come from

*Journals with the most papers, since 2023*

| # | Journal | Papers |
|---:|---|---:|
| 1 | [Expert Systems with Applications](https://scholar4ai.com/journals/expert-systems-with-applications.md) | 117 |
| 2 | [Knowledge-Based Systems](https://scholar4ai.com/journals/knowledge-based-systems.md) | 61 |
| 3 | [Pattern Recognition](https://scholar4ai.com/journals/pattern-recognition.md) | 41 |
| 4 | [Neural Networks](https://scholar4ai.com/journals/neural-networks.md) | 37 |
| 5 | [Neural Computing and Applications](https://scholar4ai.com/journals/neural-computing-and-applications.md) | 37 |
| 6 | [Computers & Industrial Engineering](https://scholar4ai.com/journals/computers-industrial-engineering.md) | 33 |
| 7 | [Applied Intelligence](https://scholar4ai.com/journals/applied-intelligence.md) | 28 |
| 8 | [IEEE Transactions on Knowledge and Data Engineering](https://scholar4ai.com/journals/ieee-transactions-on-knowledge-and-data-engineering.md) | 28 |
| 9 | [Artificial Intelligence Review](https://scholar4ai.com/journals/artificial-intelligence-review.md) | 26 |
| 10 | [Information Fusion](https://scholar4ai.com/journals/information-fusion.md) | 24 |

*Institutions with the most papers, since 2023*

| # | Institution | Papers |
|---:|---|---:|
| 1 | [Chinese Academy of Sciences](https://scholar4ai.com/institutions/chinese-academy-of-sciences.md) | 15 |
| 2 | [Sichuan University](https://scholar4ai.com/institutions/sichuan-university.md) | 14 |
| 3 | [Tsinghua University](https://scholar4ai.com/institutions/tsinghua-university.md) | 12 |
| 4 | [Hong Kong Polytechnic University](https://scholar4ai.com/institutions/hong-kong-polytechnic-university.md) | 11 |
| 5 | [Zhejiang University](https://scholar4ai.com/institutions/zhejiang-university.md) | 11 |
| 6 | [Southwest Jiaotong University](https://scholar4ai.com/institutions/southwest-jiaotong-university.md) | 10 |
| 7 | [Xi'an Jiaotong University](https://scholar4ai.com/institutions/xi-an-jiaotong-university.md) | 10 |
| 8 | [National University of Defense Technology](https://scholar4ai.com/institutions/national-university-of-defense-technology.md) | 9 |
| 9 | [Central South University](https://scholar4ai.com/institutions/central-south-university.md) | 8 |
| 10 | [Harbin Institute of Technology](https://scholar4ai.com/institutions/harbin-institute-of-technology.md) | 8 |

*Countries with the most papers, since 2023*

| # | Country | Papers |
|---:|---|---:|
| 1 | China | 285 |
| 2 | United States | 75 |
| 3 | India | 54 |
| 4 | United Kingdom | 41 |
| 5 | Australia | 39 |
| 6 | South Korea | 35 |
| 7 | Italy | 28 |
| 8 | Hong Kong | 25 |
| 9 | Saudi Arabia | 25 |
| 10 | Canada | 23 |

*Keywords with the most papers, since 2023*

| # | Keyword | Papers |
|---:|---|---:|
| 1 | [class imbalance](https://scholar4ai.com/keywords/class-imbalance.md) | 39 |
| 2 | autoencoder | 36 |
| 3 | multivariate time series | 34 |
| 4 | [unsupervised learning](https://scholar4ai.com/keywords/unsupervised-learning.md) | 28 |
| 5 | [generative adversarial networks](https://scholar4ai.com/keywords/generative-adversarial-networks.md) | 27 |
| 6 | [graph neural networks](https://scholar4ai.com/keywords/graph-neural-networks.md) | 27 |
| 7 | intrusion detection | 23 |
| 8 | Isolation Forest | 22 |
| 9 | [deep learning](https://scholar4ai.com/keywords/deep-learning.md) | 22 |

## Most-cited papers

*Most-cited papers since 2017*

| # | Citations | Per month | Title | Journal | Published | Authors |
|---:|---:|---:|---|---|---|---|
| 1 | 885 | 31.2 | [Generalized Out-of-Distribution Detection: A Survey](https://doi.org/10.1007/s11263-024-02117-4) | [International Journal of Computer Vision](https://scholar4ai.com/journals/international-journal-of-computer-vision.md) | 2024-06-23 | Jingkang Yang, Kaiyang Zhou, Yixuan Li et al. |
| 2 | 845 | 11.5 | [Deep Learning for Spatio-Temporal Data Mining: A Survey](https://doi.org/10.1109/tkde.2020.3025580) | [IEEE Transactions on Knowledge and Data Engineering](https://scholar4ai.com/journals/ieee-transactions-on-knowledge-and-data-engineering.md) | 2020-09-22 | Senzhang Wang, Jiannong Cao, Philip S. Yu |
| 3 | 619 | 10.7 | [Financial Fraud: A Review of Anomaly Detection Techniques and Recent Advances](https://doi.org/10.1016/j.eswa.2021.116429) | [Expert Systems with Applications](https://scholar4ai.com/journals/expert-systems-with-applications.md) | 2021-12-31 | Waleed Hilal, S. Andrew Gadsden, John Yawney |
| 4 | 613 | 18.6 | [Autoencoders and their applications in machine learning: a survey](https://doi.org/10.1007/s10462-023-10662-6) | [Artificial Intelligence Review](https://scholar4ai.com/journals/artificial-intelligence-review.md) | 2024-02-03 | Kamal Berahmand, Fatemeh Daneshfar, Elaheh Sadat Salehi et al. |
| 5 | 574 | 13.6 | [Deep Isolation Forest for Anomaly Detection](https://doi.org/10.1109/tkde.2023.3270293) | [IEEE Transactions on Knowledge and Data Engineering](https://scholar4ai.com/journals/ieee-transactions-on-knowledge-and-data-engineering.md) | 2023-04-25 | Hongzuo Xu, Guansong Pang, Yijie Wang et al. |

## Cite this page

Scholar4AI. (2026). Papers on “anomaly detection”. Journal and Conference Research Rankings. Retrieved November 4, 2026, from https://scholar4ai.com/keywords/anomaly-detection

```bibtex
@misc{scholar4ai-keywords-anomaly-detection,
  author = {{Scholar4AI}},
  title = {Papers on “anomaly detection”},
  year = {2026},
  howpublished = {\url{https://scholar4ai.com/keywords/anomaly-detection}},
  urldate = {2026-11-04},
  note = {Journal and Conference Research Rankings; data from OpenAlex (CC0); licensed CC BY-NC 4.0}
}
```

License: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/).