Teruyuki Watanabe   Junzo Watada(Waseda University   
"Proccedings of 8th International Conference, KES 2004" (III) 129-135 2004年9月
"In a real investment, stocks are dealt with based on a block of shares. A block of shares is a minimum unit for trading stocks. However, a conventional portfolio selection problem does not consider about a block of shares. If we deal with st...