Open Access Theses and Dissertations
Latest screenshot: 2023-02-15
Access to search interface:
open
Last major interface update:
2013-09-09
Owner of search system:
Open Access Theses and Dissertations
Location of system headquarters:
Winston-Salem, US
Year of launch:
2013
Type:
Bibliographic database
Help URL:
Twitter:
N/A
Description of search system (by system owner)
OATD.org aims to be the best possible resource for finding open access graduate theses and dissertations published around the world. Metadata (information about the theses) comes from over 1100 colleges, universities, and research institutions.
Notes
Timeouts are very frequent. Reload to compute queries.
Total coverage:
6.29M
Year-over-year growth (2020-2021):
-6.84%
Subject coverage:
Multidisciplinary
Retrospective coverage:
1892–2024
Record types:
1
Open Access records:
6.29M / 100.00%
Search functionality and interface
Systematic keyword searching:
sufficient
Backward citation searching:
limited
Forward citation searching:
limited
Query builder:
Search history:
Match preview:
Sorting options:
4
Query
Latency with short query:
13.11 seconds
Latency with long query:
43.15 seconds
Controlled vocabulary:
Field codes:
7
Full text search:
Search string length (narrow):
25 terms max.
Search string length (wide):
25 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:
3
Boolean 'OR':
Boolean 'AND':
Boolean 'NOT':
Proximity operator:
Boolean works exact:
Nested search (parentheses):
Citation search / filtering
Record type filters:
0
Results filters:
8
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:
Full
Bulk select records:
Bulk export records:
1
Export formats:
1
API:
no
Bulk select records' backward citations:
Bulk export backward citations:
N/A
Bulk select records' forward citations:
Bulk export forward citations:
N/A
