international symposium on graph theory and combinatorial algorithms 图论与组合算法国际研讨会
7 moses charikar, sudipto guha . improved combinatorial algorithms for the facility location and k-median problems . in focs 99 : proc 在流数据上,我们将k中值点问题简化为一个流数据上频繁项搜索问题。
in this dissertation, a combinatorial algorithm based on the directional segmentation is proposed for the preprocessing of the fingerprint images, this combinatorial algorithm is composed of normalization, directional image computation, directional filtering ( gabor filtering ), local self-adaptive binarization, noise elimination and thinning 本文的预处理算法包括以下步骤:规一化、方向图计算、方向滤波(采用gabor滤波)、局部自适应二值化、二值化去噪和细化。
in this dissertation, a combinatorial algorithm based on the directional segmentation is proposed for the preprocessing of the fingerprint images, this combinatorial algorithm is composed of normalization, directional image computation, directional filtering ( gabor filtering ), local self-adaptive binarization, noise elimination and thinning 本文的预处理算法包括以下步骤:规一化、方向图计算、方向滤波(采用gabor滤波)、局部自适应二值化、二值化去噪和细化。