计算机应用研究
計算機應用研究
계산궤응용연구
APPLICATION RESEARCH OF COMPUTERS
2013年
3期
684-687
,共4页
何士玉%刘志刚%徐建芳%李文帆
何士玉%劉誌剛%徐建芳%李文帆
하사옥%류지강%서건방%리문범
基于模型诊断%极小碰集%蛛网%访问蜘蛛
基于模型診斷%極小踫集%蛛網%訪問蜘蛛
기우모형진단%겁소팽집%주망%방문지주
model-based diagnosis%minimum hitting set%cobweb%visiting spider
为降低空间复杂度和减少搜索时间, 结合极小碰集的特点和生物学中蜘蛛捕食思想, 提出了一种搜索极小碰集的蛛网算法。该方法考虑集合之间的相关性, 并构造能在蛛网上寻路的访问蜘蛛用于寻找蛛网内集合的所有极小碰集。在该算法中, 所提出的访问蜘蛛生成和搜索策略能够降低空间复杂度和减少搜索时间。将此算法与其他的极小碰集算法进行比较, 实验结果表明, 该算法在保证得到所有极小碰集的前提下, 具有较低的空间复杂度和较高的时间效率。
為降低空間複雜度和減少搜索時間, 結閤極小踫集的特點和生物學中蜘蛛捕食思想, 提齣瞭一種搜索極小踫集的蛛網算法。該方法攷慮集閤之間的相關性, 併構造能在蛛網上尋路的訪問蜘蛛用于尋找蛛網內集閤的所有極小踫集。在該算法中, 所提齣的訪問蜘蛛生成和搜索策略能夠降低空間複雜度和減少搜索時間。將此算法與其他的極小踫集算法進行比較, 實驗結果錶明, 該算法在保證得到所有極小踫集的前提下, 具有較低的空間複雜度和較高的時間效率。
위강저공간복잡도화감소수색시간, 결합겁소팽집적특점화생물학중지주포식사상, 제출료일충수색겁소팽집적주망산법。해방법고필집합지간적상관성, 병구조능재주망상심로적방문지주용우심조주망내집합적소유겁소팽집。재해산법중, 소제출적방문지주생성화수색책략능구강저공간복잡도화감소수색시간。장차산법여기타적겁소팽집산법진행비교, 실험결과표명, 해산법재보증득도소유겁소팽집적전제하, 구유교저적공간복잡도화교고적시간효솔。
To reduce space complexity and reduce search time, this paper proposed a cobweb algorithm for search minimum hitting sets, which combined the characteristics of minimum hitting sets and thought on spider prey in biology. It considered this method the correlation between the sets, and structured the visiting spider which could find the path of the cobweb access to find all minimum hitting sets of sets within the cobweb. In the algorithm, the generation of visiting spiders and search strategy could reduce space complexity and reduce search time. Compared with the other algorithms which computing the minimum hitting sets, the results of experiments show that under the premise of guaranteeing to get all minimum hitting sets, the algorithm has lower space complexity and higher efficiency.