衡阳师范学院学报
衡暘師範學院學報
형양사범학원학보
journal of Hengyang Normal University
2008年
3期
21~25
,共null页
迁徙策略 模体识别 计算分子生物学 粒子群优化算法 协同演化
遷徙策略 模體識彆 計算分子生物學 粒子群優化算法 協同縯化
천사책략 모체식별 계산분자생물학 입자군우화산법 협동연화
migration strategy; motif detection; computational molecular biology; particle swarm optimization; harmonious evolution
对优化问题和游牧民族迁徙行为的比较研究表明,两者存在相似之处,文中模拟了游牧民族迁徙机制,提出了一种迁徙策略,并且与粒子群优化算法相结合,提高了算法摆脱局部极值的能力,通过集成技术,充分发挥各种粒子群优化算法的优点,实现协同演化,提高了算法的全局搜索能力。最后应用于求解计算分子生物学中的一个复杂问题——生物序列模体识别,实验表明,该算法是有效的。
對優化問題和遊牧民族遷徙行為的比較研究錶明,兩者存在相似之處,文中模擬瞭遊牧民族遷徙機製,提齣瞭一種遷徙策略,併且與粒子群優化算法相結閤,提高瞭算法襬脫跼部極值的能力,通過集成技術,充分髮揮各種粒子群優化算法的優點,實現協同縯化,提高瞭算法的全跼搜索能力。最後應用于求解計算分子生物學中的一箇複雜問題——生物序列模體識彆,實驗錶明,該算法是有效的。
대우화문제화유목민족천사행위적비교연구표명,량자존재상사지처,문중모의료유목민족천사궤제,제출료일충천사책략,병차여입자군우화산법상결합,제고료산법파탈국부겁치적능력,통과집성기술,충분발휘각충입자군우화산법적우점,실현협동연화,제고료산법적전국수색능력。최후응용우구해계산분자생물학중적일개복잡문제——생물서렬모체식별,실험표명,해산법시유효적。
A comparative study of optimization and nomadic migration shows that there are similarities between the two processes. In this paper, migration strategy is proposed by the simulation of nomadic migration, and the local extremum problem of particle swarm optimization has been solved by merging migration strategy. At the same time, the algorithm with ensemble technique not only sufficiently exerts the advantages of different particle swarm optimization and carries out harmonious evolution, but also the global search capability of the algorithm has been enhanced badly. Finally, the novel algorithm has been used to deal with biological Sequence motif detection, which is a complex problem in computational molecular biology and the experiments show that the algorithm is effective.