Question: What is the title of the paper published in 2003 by an author with affiliation with Department of Network Science, Graduate School of Information Systems, The University of Electro-Communications?
SQL: SELECT DISTINCT T2.Title FROM PaperAuthor AS T1 INNER JOIN Paper AS T2 ON T1.PaperId = T2.Id WHERE T1.Affiliation = 'Department of Network Science, Graduate School of Information Systems, The University of Electro-Communications' AND T2.Year = 2003