Database: academic
Question: return me the conference, which have the most number of papers by " H. V. Jagadish " .
SQL:
SELECT t2.name FROM publication AS t4 JOIN conference AS t2 ON t4.cid  =  t2.cid JOIN writes AS t3 ON t3.pid  =  t4.pid JOIN author AS t1 ON t3.aid  =  t1.aid WHERE t1.name  =  "H. V. Jagadish" GROUP BY t2.name ORDER BY COUNT ( DISTINCT t4.title ) DESC LIMIT 1;