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- second gradient operator 第2类梯度算子
- The article studies the multi-apices optimization problem.An improved genetic algorithm based on gradient operator and sifting strategy is proposed. 摘要本文研究了多峰优化问题，利用梯度算子和筛选策略，得到了一种可求解多峰函数全部最优解的改进型遗传算法。
- Considering the sudden change of the gray scale of the image edge,a rapid adaptive edge-detection technique was presented which uses gradient operator and sampling. 利用图像边缘灰度突变的特性,提出一种梯度算子结合抽样的快速自适应边缘检测方法。
- Hence several gradient operators were used to compute the local orientation, and the influences of the operators on the ICG algorithms under different lighting conditions were analyzed and compared. 通过实验，验证了反向合成梯度算法能够有效克服图像中光照变化的影响，同时比较了不同算子在不同光照下对反向合成梯度算法的影响。
- Generalized Steepness Lemma of Projected Gradient Operator and Its Applications 梯度投影算子的广义陡度引理及其应用
- He singled and went to second on a passed ball. 他击出一垒打，再因对方漏接而跑上二垒。
- A Complex Gradient Operator and Its Application in Adaptive Signal Processing 复梯度算子及其在自适应信号处理中的应用
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- It travels thousands of miles per second. 它一秒钟能走几千英里。
- The second snub settled his hash. 第二次碰壁使他不敢再找麻烦了。
- The second term commences in March. 第二学期自三月开始。
- He kicked the car down from third to second. 他把汽车排档从3档降为2档。
- Her second novel was taken apart by the critics. 她的第二部小说受到评论家的严厉批评。
- My father grows roses that are second to none. 我父亲种的玫瑰是最好的。
- The game didn't heat up until the second half. 游戏玩到后半场才热闹起来。
- The second batch of sugar is better than the first. 第二批制成的糖比第一批好。
- The second part is the high spot of this book. 第二部分是这本书的最精彩部分。
- One single, second class, to winchester, please. 买一张去温撤斯特单程二等票。
- He gave me a second shot of penicillin. 他又给我打了一针青霉素。
- Most of our knowledge is at second hand. 我们的大部分知识是间接的。
