Dice's coefficient on trigram profiles as metric for language similarity. - Nathaniel Oco; Leif Romeritch Syliongka; Rachel Edita Roxas; Joel P. Ilao (O-COCOSDA/CASLRE, 2013)

Combining Automatic and Manual Approaches: Towards a Framework for Discovering Themes in Disaster-related Tweets. - Leif Romeritch Syliongka; Alron Jan Lam; Cheryll Ruth Soriano; Ma. Divina Gracia Roldan; Francisco Magno; Charibeth Ko Cheng; Nathaniel Oco (WWW (Companion Volume), 2015)

Philippine Language Resources: Applications, Issues, and Directions. - Nathaniel Oco; Leif Romeritch Syliongka; Tod Allman; Rachel Edita Roxas (PACLIC, 2016)