A society of cooperative agents on the information network: towards intelligent information gathering. - Roberto Okada; Eun-Seok Lee 001; Norio Shiratori (ICNP, 1995)

Multimedia Information Gathering Based on a Society of Cooperative Agents. - Roberto Okada; Eun-Seok Lee 001; Norio Shiratori (MMNET, 1995)

Agent-based approach for information gathering on highly distributed and heterogeneous environment. - Roberto Okada; Eun-Seok Lee 001; Norio Shiratori (ICPADS, 1996)

Agent-Based Support for Personalized Information with Web Search Engines. - Eun-Seok Lee 001; Roberto Okada; Ingeol Chun (HCI (2), 1997)

Modeling Goods as Agents in Electronic Business-to-Business Markets. - Roberto Okada; Akihiro Fujii; Tsuyoshi Ohtani; Noriaki Oshida (WebNet, 2001)

Cross Cultural Web Comfortability and the Study on the Influence of Cultural Profiles in Chile. - Roberto Okada; Wilson Castillo (SCCC, 2007)