Qualitative geocoding of persistent web pages. - Albert Angel; Chara Lontou; Dieter Pfoser; Alexandros Efentakis (GIS, 2008)

Ranking objects based on relationships and fixed associations. - Albert Angel; Surajit Chaudhuri; Gautam Das 001; Nick Koudas (EDBT, 2009)

What's on the grapevine? - Albert Angel; Nick Koudas; Nikos Sarkas; Divesh Srivastava (SIGMOD Conference, 2009)

Efficient identification of coupled entities in document collections. - Nikos Sarkas; Albert Angel; Nick Koudas; Divesh Srivastava (ICDE, 2010)

Efficient diversity-aware search. - Albert Angel; Nick Koudas (SIGMOD Conference, 2011)

Dense Subgraph Maintenance under Streaming Edge Weight Updates for Real-time Story Identification. - Albert Angel; Nick Koudas; Nikos Sarkas; Divesh Srivastava (Proc. VLDB Endow., 2012)

Mining User-generated Content for Insights. - Albert Angel (2012)

Dense subgraph maintenance under streaming edge weight updates for real-time story identification. - Albert Angel; Nick Koudas; Nikos Sarkas; Divesh Srivastava; Michael Svendsen; Srikanta Tirthapura (VLDB J., 2014)