OAGK Keyword Generation Dataset
===============================

OAGK is a keyword extraction/generation dataset consisting of 2.2 million
abstracts, titles and keyword strings from scientific articles. 
Texts were lowercased and tokenized with Stanford CoreNLP tokenizer. 
No other preprocessing steps were applied in this release version.
Dataset records (samples) are stored as JSON lines in each text file. 

This data is derived from OAG data collection 
(https://aminer.org/open-academic-graph) which was released under 
ODC-BY licence. 

This data (OAGK Keyword Generation Dataset) is released under CC-BY licence 
(https://creativecommons.org/licenses/by/4.0/).


Download
--------

This dataset can be download from LINDAT/CLARIN repository
http://hdl.handle.net/11234/1-2943


Publications
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If using it, please cite the following paper:

Çano, Erion and Bojar, Ondřej, 2019, Keyphrase Generation: A Text 
Summarization Struggle, 2019 Annual Conference of the North American 
Chapter of the Association for Computational Linguistics, June 2019, 
Minneapolis, USA 


Acknowledgements
----------------

This research work was [partially] supported by OP RDE project No. 
CZ.02.2.69/0.0/0.0/16_027/0008495, International Mobility of 
Researchers at Charles University.


Data Statistics
--------------- 

OAGK (fullset) statistics: 
Records: 2200000
Total keyphrases: 13435189
Total title tokens: 26998352
Total abstract tokens: 499179395
Average keyphrases: 6.106903
Average title tokens: 12.271974
Average abstract tokens: 226.899725

oagk_train statistics:
Records: 2000000
Total keyphrases: 11990067
Total title tokens: 24127290
Total abstract tokens: 440850430
Average keyphrases: 5.9950335
Average title tokens: 12.063645
Average abstract tokens: 220.425215

oagk_val statistics::
Records: 100000
Total keyphrases: 575022
Total title tokens: 1284088
Total abstract tokens: 21106435
Average keyphrases: 5.75022
Average title tokens: 12.84088
Average abstract tokens: 211.06435

oagk_test statistics:
Records: 100000
Total keyphrases: 870100
Total title tokens: 1586974
Total abstract tokens: 37222530
Average keyphrases: 8.701
Average title tokens: 15.86974
Average abstract tokens: 372.2253