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nets and data mining。d?! hope to study in depth 。_iaosong lin, a visiting professor of mathematics from university of californiariverside, i learned graph theory from him for my network research?! esides, in july 2000, i got the opportunity to give a lecture in english in asia control conference (ascc) which is one of the toplevel conferences among the world in the area of control and automation。 i try to bine the decision tree with receding optimization to provide a new solution for the posite predictive problem。 i also publicized two papers in core journals with this idea。 to make a balance point between optimization quality and time cost, i proposed a dynamic layered sched uling method based on hybrid petri nets。 in the second semester, i joined the workshopscheduling research in shanghai heavy duty tyre plant。 by dividing a whole population into several subpopulations, this improved algorithm can effectively prevent ga from local convergence and promote various evolutionary orientations。 my duty was to pick up the useful information among different kinds of gene matching format?! n 1999, i joined the distinguished professor yugeng _is research group aiming at network flow problem solving and heuristic algorithm research。 dispose project for nanjing sewage treatment plant。 it is now widely used by different research groups in nust。 wang’s lab?! esearch e_perience and academic activity,when a sophomore, i joined th