APIs Limit & Fields & Filter
APIs Limit
There is a limit to how many requests you can make to Scopus APIs using your API Key. After each request, the API will return some information about the availability of your API Key in the response headers. This quota limit resets every seven days.
"X-RateLimit-Limit": "Shows API request quota limit",
"X-RateLimit-Remaining": "Shows API remaining request quota",
"X-RateLimit-Reset": "Date/Time in Epoch seconds when API quota resets"
Info
Epoch is the number of seconds that have elapsed since January 1, 1970, also known as Unix time.
Quota Exceeded
If the request quota or throttling rate of the API is exceeded, you will receive an HTTP status error 429: Too Many Requests.
Note
Learn more about the quota of how much data an API Key can retrieve.
Fields Mapping
Taking into account that the objective of this application is to carry out a survey of theoretical references for research and as a basis for future academic work, we selected a group of specific information from the articles' metadata.
| Field | Column | Description |
|---|---|---|
link ref=scopus |
Article Preview Page URL | Scopus article preview page URL |
dc:identifier |
Scopus ID | Article Scopus ID |
authors or dc:creator |
Authors | Complete author list or only the first author |
dc:title |
Title | Article title |
prism:publicationName |
Publication Name | Source title |
dc:description |
Abstract | Article complete abstract |
prism:coverDate |
Date | Publication date |
eid |
Electronic ID | Article Electronic ID |
prism:doi |
DOI | Document Object Identifier |
prism:volume |
Volume | Identifier for a serial publication |
citedby-count |
Citations | Cited-by count |
Note
See an example of a Scopus article preview page.
Filtering Results
To provide greater consistency, all data goes through three filtering steps:
1. Firstly, all exact repetitions will be removed.
2. Secondly, all results with the exact same title and same authors will be removed.
3. Finally, all results with similar titles and from the same authors will be removed.
To perform the third step, we will select two or more articles that have exactly the same authors. After that, we will use the TheFuzz library, which uses Levenshtein Distance, to calculate the similarity between the titles of the articles of those repeated authors and, finally, we will remove the articles whose titles are at least 80% similar.
Articles that do not have repeated authors or similar titles will be disregarded. A log message will be displayed indicating the percentage of total loss of articles.