The principle objective of this paper is to research into Philip Roth＇s uncovering and opposition to American racial discrimination, foreign wars and free love. By reading Philip Roth＇s novels concerning these aspec...The principle objective of this paper is to research into Philip Roth＇s uncovering and opposition to American racial discrimination, foreign wars and free love. By reading Philip Roth＇s novels concerning these aspects and referring to studies done by other scholars in these fields, after a careful and logical analysis, the writer of this paper draws a reasonable conclusion about Philip Roth＇s attitudes toward these matters. In many of his works, Philip Roth exposes and condemns racial discrimination in American society, displays and criticizes the culture of free love, unfolds American people＇s calamities caused by foreign wars and expresses his protest against foreign wars.展开更多
Genetic Algorithms (GAs) are efficient non-gradient stochastic search methods and Parallel GAs (PGAs) are proposed to overcome the deficiencies of the sequential GAs, such as low speed, aptness to local convergence, e...Genetic Algorithms (GAs) are efficient non-gradient stochastic search methods and Parallel GAs (PGAs) are proposed to overcome the deficiencies of the sequential GAs, such as low speed, aptness to local convergence, etc. However, the tremendous increase in the communication costs accompanied with the parallelization stunts the further improvements of PGAs. This letter takes the decrease of the communication costs as the key to this problem and advances a new Migration Scheme based on Schema Theorem (MSST). MSST distills schemata from the populations and then proportionately disseminates them to other populations, which decreases the total communication cost among the populations and arms the multiple-population model with higher speed and better scalability.展开更多
文摘The principle objective of this paper is to research into Philip Roth＇s uncovering and opposition to American racial discrimination, foreign wars and free love. By reading Philip Roth＇s novels concerning these aspects and referring to studies done by other scholars in these fields, after a careful and logical analysis, the writer of this paper draws a reasonable conclusion about Philip Roth＇s attitudes toward these matters. In many of his works, Philip Roth exposes and condemns racial discrimination in American society, displays and criticizes the culture of free love, unfolds American people＇s calamities caused by foreign wars and expresses his protest against foreign wars.
基金National Natural Science Foundation of China (No.60073012)National Science Foundation of Jiangsu, China(BK2001004)Visiting Scholar Foundation of Key Lab. in the University
文摘Genetic Algorithms (GAs) are efficient non-gradient stochastic search methods and Parallel GAs (PGAs) are proposed to overcome the deficiencies of the sequential GAs, such as low speed, aptness to local convergence, etc. However, the tremendous increase in the communication costs accompanied with the parallelization stunts the further improvements of PGAs. This letter takes the decrease of the communication costs as the key to this problem and advances a new Migration Scheme based on Schema Theorem (MSST). MSST distills schemata from the populations and then proportionately disseminates them to other populations, which decreases the total communication cost among the populations and arms the multiple-population model with higher speed and better scalability.
