Parallelizing query optimization. - Wook-Shin Han; Wooseong Kwak; Jinsoo Lee; Guy M. Lohman; Volker Markl (Proc. VLDB Endow., 2008)

On supporting effective web extraction. - Wook-Shin Han; Wooseong Kwak; Hwanjo Yu (ICDE, 2010)

Leveraging spatial join for robust tuple extraction from web pages. - Wook-Shin Han; Wooseong Kwak; Hwanjo Yu; Jeong-Hoon Lee 004; Min-Soo Kim 002 (Inf. Sci., 2014)