Database: scholar
Question: what year was the first deep learning paper published ?
SQL: select distinct t2.datasetid  ,  t4.year from paperdataset as t3 join dataset as t2 on t3.datasetid  =  t2.datasetid join paperkeyphrase as t1 on t1.paperid  =  t3.paperid join paper as t4 on t4.paperid  =  t3.paperid join keyphrase as t5 on t1.keyphraseid  =  t5.keyphraseid where t5.keyphrasename  =  "deep learning" order by t4.year asc;