---
title: "opera (R package): papers citing this CRAN package"
description: "4 papers in the tracked journals link to opera (R package) in their Crossref records, the first in 2018; most of them (2) in 2023."
url: https://scholar4ai.com/code/cran-opera
markdown_url: https://scholar4ai.com/code/cran-opera.md
license: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/)
share_text: "4 papers in the tracked journals link to opera (R package) in their Crossref records, the first in 2018; most of them (2) in 2023. (as of 2026-11-03)"
data_url: https://scholar4ai.com/data/rankings.json
updated: 2026-11-03T14:43:26+09:00
window: 2026-10-05 to 2026-11-03
source: OpenAlex (CC0)
---

# opera (R package): papers linking to it

Research papers in the 480 tracked journals that link to opera (R package) (https://CRAN.R-project.org/package=opera), read from their Crossref records: by year, category and journal, the family tree of papers building on one another, and the linked repositories derived from it or that it derives from.

- CRAN
- https://CRAN.R-project.org/package=opera

All repositories: https://scholar4ai.com/code.md

## Key findings

- 4 papers in the tracked journals link to opera (R package) in their Crossref records, the first in 2018; most of them (2) in 2023.
- By category: AI (3) and Statistics (1); the journals with the most are Machine Learning (2), Expert Systems with Applications (1) and Statistical Papers (1).
- 2 of the papers build on one another: a later paper cites an earlier one that also links opera (R package).

## By year

*Papers linking to opera (R package) by publication year*

| Year | Papers |
|---|---:|
| 2018 | 1 |
| 2022 | 1 |
| 2023 | 2 |

## Journals

*Journals whose papers link to opera (R package) most*

| Journal | Papers |
|---|---:|
| [Machine Learning](https://scholar4ai.com/journals/machine-learning.md) | 2 |
| [Expert Systems with Applications](https://scholar4ai.com/journals/expert-systems-with-applications.md) | 1 |
| [Statistical Papers](https://scholar4ai.com/journals/statistical-papers.md) | 1 |

## Family tree

Each paper sits under the earlier paper it builds on.

- [Arbitrage of forecasting experts](https://doi.org/10.1007/s10994-018-05774-y) (Machine Learning, 2018)
  - [Explainable online ensemble of deep neural network pruning for time series forecasting](https://doi.org/10.1007/s10994-022-06218-4) (Machine Learning, 2022) — cites the paper above

## Papers

*Papers linking to opera (R package), most cited first*

| Published | Title | Journal | Authors | Citations | Link |
|---|---|---|---|---:|---|
| 2018-12-04 | [Arbitrage of forecasting experts](https://doi.org/10.1007/s10994-018-05774-y) | [Machine Learning](https://scholar4ai.com/journals/machine-learning.md) | Vítor Cerqueira, Luı́s Torgo, Fábio Pinto et al. | 51 | cites it |
| 2022-08-02 | [Explainable online ensemble of deep neural network pruning for time series forecasting](https://doi.org/10.1007/s10994-022-06218-4) | [Machine Learning](https://scholar4ai.com/journals/machine-learning.md) | Amal Saadallah, Matthias Jakobs, Katharina J. Morik | 19 | cites it |
| 2023-09-18 | [An algorithm for automatic selection and combination of forecast models](https://doi.org/10.1016/j.eswa.2023.121636) | [Expert Systems with Applications](https://scholar4ai.com/journals/expert-systems-with-applications.md) | Carlos García-Aroca, María Asunción Martínez Mayoral, Javier Morales et al. | 8 | cites it |
| 2023-03-16 | [Kalman recursions Aggregated Online](https://doi.org/10.1007/s00362-023-01410-7) | [Statistical Papers](https://scholar4ai.com/journals/statistical-papers.md) | Eric Adjakossa, Yannig Goude, Olivier Wintenberger | 5 | cites it |

## How this is measured

Links are read from each paper's Crossref record as its publisher deposited it: the URLs and repository DOIs in its reference list (the software and data it cites) and its supplementary links (“is-supplemented-by”: its own code or data). A paper that gives its code only in the text, a footnote or a data availability statement is not counted, and some publishers deposit reference lists without their URLs, so every count here is a lower bound. Repository details come from the GitHub REST API (stars, forks, and the repository a fork was made from), the Hugging Face Hub API (likes, downloads, and the base model a model was derived from) and DataCite (Zenodo and other data DOIs, and the GitHub release a Zenodo record archives), read again every month.

## Cite this page

Scholar4AI. (2026). opera (R package): papers linking to it. Journal and Conference Research Rankings. Retrieved November 3, 2026, from https://scholar4ai.com/code/cran-opera

```bibtex
@misc{scholar4ai-code-cran-opera,
  author = {{Scholar4AI}},
  title = {opera (R package): papers linking to it},
  year = {2026},
  howpublished = {\url{https://scholar4ai.com/code/cran-opera}},
  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/).