---
title: "Dimensionality reduction research: papers and trends"
description: "From 2017 to 2026 (so far), the keyword “dimensionality reduction” appeared in 1,746 papers in the tracked journals, most of them in AI (1,261), statistics (219) and operations research (137)."
url: https://scholar4ai.com/keywords/dimensionality-reduction
markdown_url: https://scholar4ai.com/keywords/dimensionality-reduction.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 “dimensionality reduction” appeared in 1,746 papers in the tracked journals, most of them in AI (1,261), statistics (219) and operations research (137). (as of 2026-11-03)"
data_url: https://scholar4ai.com/data/rankings.json
updated: 2026-11-03T18:03:37+09:00
window: 2026-10-05 to 2026-11-03
source: OpenAlex (CC0)
---

# Papers on “dimensionality reduction”

Research on “dimensionality reduction” 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 “dimensionality reduction” appeared in 1,746 papers in the tracked journals, most of them in AI (1,261), statistics (219) and operations research (137).
- 194 of them were published in 2025, against 123 in 2017.
- Since 2023, the institutions with the most of these papers were Northwestern Polytechnical University (31), Southwest Jiaotong University (17) and Centre National de la Recherche Scientifique (14).
- The journals publishing most of them were Expert Systems with Applications (124), Knowledge-Based Systems (47) and Pattern Recognition (46).
- The most-cited of them is “A Survey on Multi-Task Learning” (IEEE Transactions on Knowledge and Data Engineering, 2021), with 2,909 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) | 91 | 99 | 91 | 126 | 164 | 174 | 149 | 147 | 124 | 96 |
| [Statistics](https://scholar4ai.com/categories/statistics.md) | 19 | 29 | 17 | 16 | 19 | 18 | 25 | 14 | 31 | 31 |
| [Operations Research](https://scholar4ai.com/categories/operations-research.md) | 8 | 8 | 12 | 15 | 13 | 21 | 15 | 12 | 19 | 14 |
| [Economics](https://scholar4ai.com/categories/economics.md) | 3 | 2 | 4 | 4 | 10 | 7 | 7 | 10 | 15 | 10 |
| [Finance](https://scholar4ai.com/categories/finance.md) | 1 | 1 | 1 | 2 | 1 | 10 | 4 | 3 | 4 | 8 |
| [Information Systems](https://scholar4ai.com/categories/information-systems.md) | 0 | 1 | 1 | 2 | 0 | 2 | 1 | 3 | 0 | 0 |
| [Management](https://scholar4ai.com/categories/management.md) | 1 | 0 | 0 | 0 | 2 | 2 | 1 | 0 | 1 | 0 |
| [Tourism and Hospitality](https://scholar4ai.com/categories/tourism-and-hospitality.md) | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| [Marketing](https://scholar4ai.com/categories/marketing.md) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| [Higher Education and Research](https://scholar4ai.com/categories/higher-education-and-research.md) | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| All categories | 123 | 141 | 126 | 165 | 210 | 236 | 202 | 189 | 194 | 160 |

## 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) | 124 |
| 2 | [Knowledge-Based Systems](https://scholar4ai.com/journals/knowledge-based-systems.md) | 47 |
| 3 | [Pattern Recognition](https://scholar4ai.com/journals/pattern-recognition.md) | 46 |
| 4 | [Applied Intelligence](https://scholar4ai.com/journals/applied-intelligence.md) | 45 |
| 5 | [Neural Computing and Applications](https://scholar4ai.com/journals/neural-computing-and-applications.md) | 40 |
| 6 | [IEEE Transactions on Neural Networks and Learning Systems](https://scholar4ai.com/journals/ieee-transactions-on-neural-networks-and-learning-systems.md) | 30 |
| 7 | [Journal of Multivariate Analysis](https://scholar4ai.com/journals/journal-of-multivariate-analysis.md) | 28 |
| 8 | [Neural Networks](https://scholar4ai.com/journals/neural-networks.md) | 23 |
| 9 | [Statistics and Computing](https://scholar4ai.com/journals/statistics-and-computing.md) | 20 |
| 10 | [IEEE Transactions on Knowledge and Data Engineering](https://scholar4ai.com/journals/ieee-transactions-on-knowledge-and-data-engineering.md) | 17 |

*Institutions with the most papers, since 2023*

| # | Institution | Papers |
|---:|---|---:|
| 1 | [Northwestern Polytechnical University](https://scholar4ai.com/institutions/northwestern-polytechnical-university.md) | 31 |
| 2 | [Southwest Jiaotong University](https://scholar4ai.com/institutions/southwest-jiaotong-university.md) | 17 |
| 3 | [Centre National de la Recherche Scientifique](https://scholar4ai.com/institutions/centre-national-de-la-recherche-scientifique.md) | 14 |
| 4 | [Chinese Academy of Sciences](https://scholar4ai.com/institutions/chinese-academy-of-sciences.md) | 11 |
| 5 | [Xi'an Jiaotong University](https://scholar4ai.com/institutions/xi-an-jiaotong-university.md) | 11 |
| 6 | [Anhui University](https://scholar4ai.com/institutions/anhui-university.md) | 10 |
| 7 | [Southwestern University of Finance and Economics](https://scholar4ai.com/institutions/southwestern-university-of-finance-and-economics.md) | 10 |
| 8 | [University of Electronic Science and Technology of China](https://scholar4ai.com/institutions/university-of-electronic-science-and-technology-of-china.md) | 9 |
| 9 | [Xiamen University](https://scholar4ai.com/institutions/xiamen-university.md) | 9 |
| 10 | [Xidian University](https://scholar4ai.com/institutions/xidian-university.md) | 9 |

*Countries with the most papers, since 2023*

| # | Country | Papers |
|---:|---|---:|
| 1 | China | 355 |
| 2 | United States | 79 |
| 3 | India | 45 |
| 4 | Italy | 37 |
| 5 | United Kingdom | 35 |
| 6 | Australia | 31 |
| 7 | Spain | 28 |
| 8 | France | 28 |
| 9 | Germany | 26 |
| 10 | South Korea | 26 |

*Keywords with the most papers, since 2023*

| # | Keyword | Papers |
|---:|---|---:|
| 1 | [feature selection](https://scholar4ai.com/keywords/feature-selection.md) | 129 |
| 2 | [high-dimensional data](https://scholar4ai.com/keywords/high-dimensional-data.md) | 87 |
| 3 | principal component analysis | 51 |
| 4 | [feature extraction](https://scholar4ai.com/keywords/feature-extraction.md) | 31 |
| 5 | manifold learning | 28 |
| 6 | [clustering](https://scholar4ai.com/keywords/clustering.md) | 24 |
| 7 | classification | 19 |
| 8 | [computational efficiency](https://scholar4ai.com/keywords/computational-efficiency.md) | 19 |
| 9 | [class imbalance](https://scholar4ai.com/keywords/class-imbalance.md) | 18 |

## Most-cited papers

*Most-cited papers since 2017*

| # | Citations | Per month | Title | Journal | Published | Authors |
|---:|---:|---:|---|---|---|---|
| 1 | 2,909 | 43.3 | [A Survey on Multi-Task Learning](https://doi.org/10.1109/tkde.2021.3070203) | [IEEE Transactions on Knowledge and Data Engineering](https://scholar4ai.com/journals/ieee-transactions-on-knowledge-and-data-engineering.md) | 2021-03-31 | Yu Zhang, Qiang Yang |
| 2 | 2,339 | 36.6 | [ProtTrans: Toward Understanding the Language of Life Through Self-Supervised Learning](https://doi.org/10.1109/tpami.2021.3095381) | [IEEE Transactions on Pattern Analysis and Machine Intelligence](https://scholar4ai.com/journals/ieee-transactions-on-pattern-analysis-and-machine-intelligence.md) | 2021-07-07 | Ahmed Elnaggar, Michael Heinzinger, Christian Dallago et al. |
| 3 | 726 | 8.7 | [Principal component analysis](https://doi.org/10.1016/b978-0-12-815739-8.00012-2) | [Machine Learning](https://scholar4ai.com/journals/machine-learning.md) | 2019-11-15 | Ferath Kherif, Adeliya Latypova |
| 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 | 7.0 | [Overview and comparative study of dimensionality reduction techniques for high dimensional data](https://doi.org/10.1016/j.inffus.2020.01.005) | [Information Fusion](https://scholar4ai.com/journals/information-fusion.md) | 2020-01-17 | Shaeela Ayesha, Muhammad Kashif Hanif, Ramzan Talib |

## Cite this page

Scholar4AI. (2026). Papers on “dimensionality reduction”. Journal and Conference Research Rankings. Retrieved November 3, 2026, from https://scholar4ai.com/keywords/dimensionality-reduction

```bibtex
@misc{scholar4ai-keywords-dimensionality-reduction,
  author = {{Scholar4AI}},
  title = {Papers on “dimensionality reduction”},
  year = {2026},
  howpublished = {\url{https://scholar4ai.com/keywords/dimensionality-reduction}},
  urldate = {2026-11-03},
  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/).