CORE
Latest screenshot: 2024-07-28
Access to search interface:
open
Last major interface update:
2021-12-10
Owner of search system:
The Open University; Jisc
Location of system headquarters:
Milton Keynes, UK
Year of launch:
2007
Type:
Digital library
Help URL:
X-Handle:
Description of search system (by system owner)
CORE (COnnecting REpositories) is a collection of 219,114,528 searchable research papers. CORE is the most comprehensive aggregator harvesting from institutional, subject and preprint repositories as well as gold and hybrid open access journals.
Total coverage:
220.12M
Year-over-year growth (2019-2020):
-41.49%
Subject coverage:
Multidisciplinary
Retrospective coverage:
1000–2021
Record types:
21
Open Access records:
219.11M / 99.54%
Search functionality and interface
Systematic keyword searching:
limited
Backward citation searching:
limited
Forward citation searching:
limited
Query builder:
Search history:
Match preview:
Sorting options:
2
Query
Latency with short query:
1.29 seconds
Latency with long query:
5.09 seconds
Controlled vocabulary:
Field codes:
7
Full text search:
Search string length (narrow):
500 terms max.
Search string length (wide):
500 terms max.
Language support: Chinese:
Language support: Cyrillic:
Truncation:
Wildcards:
Keyword position irrelevant:
Longer strings, fewer hits:
Automatic query expansion (stemming):
Verbatim queries:
Reproducible queries (time):
Reproducible queries (locations):
Operators
Search operators:
2
Boolean 'OR':
Boolean 'AND':
Boolean 'NOT':
Proximity operator:
Boolean works exact:
Nested search (parentheses):
Citation search / filtering
Record type filters:
0
Results filters:
6
Suggested related records:
Supported by bibliometric tools:
N/A
Backward citation information:
Backward citation score:
N/A
Forward citation information:
Forward citation score:
N/A
Retrieval
Number of accessible records:
10000
Bulk select records:
Bulk export records:
1000
Export formats:
1
API:
open
Bulk select records' backward citations:
Bulk export backward citations:
N/A
Bulk select records' forward citations:
Bulk export forward citations:
N/A
