码迷,mamicode.com
首页 >  
搜索关键字:coordinate    ( 414个结果
一种适合于大数据的并行坐标下降法
在机器学习中,模型的训练是一个很重要的过程,它通常是对一个目标函数进行优化,从而获取模型的参数,比较常见的优化算法包括梯度下降法、牛顿法与拟牛顿法等。但在大数据的背景下,尤其对于并行实现来说,优化算法通常是越简单越好,如坐标下降法(CD)和随机梯度下降法(SCG)就比较受欢迎。本文是阅读完论文 Distributed Coordinate Descent Method for Learning with Big Data 的一则笔记,主要介绍算法 Hydra (一种分布式坐标下降法)的算法框架、收敛性理论、...
分类:其他好文   时间:2014-06-29 07:38:26    阅读次数:350
平面坐标(方里网)转换为经纬度坐标
方法一:在Arcmap中转换:1、载入要转换的数据,右下角为经纬度2、点击View——Data Frame Properties——Coordinate System3、导入或选择正确的坐标系,确定。这时右下角也显示坐标。但数据没改变4、右击图层——Data——Export Data5、Use th...
分类:其他好文   时间:2014-06-28 17:30:44    阅读次数:675
【Leetcode】Container With Most Water
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Fin...
分类:其他好文   时间:2014-06-17 22:17:43    阅读次数:325
Google Maps投影在ArcGIS中的设置
Google Maps采用的地图投影为Web Mercator,其优点为不同维度其形状保持不变,当然面积要发生变化。ArcGIS9.3中可以直接设置为WGS 1984 Web Mercator,操作序列为:Predefined > Projected Coordinate Systems > Wor...
分类:其他好文   时间:2014-06-14 18:44:43    阅读次数:227
User-Added Coordinate Systems in SimMechanics for unsupported Gear constraints
CAD Software RequirementsThis CAD assembly can be opened in SolidWorks? 2007 and later versions.Assembly and Exported XML FileIn this assembly, two ge...
分类:其他好文   时间:2014-06-11 08:17:18    阅读次数:1800
LeetCode: Container With Most Water 题解
Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints of ...
分类:其他好文   时间:2014-06-07 23:03:35    阅读次数:279
android Snake(3)
添加两个苹果到主界面Coordinate定义坐标,其中有能够判断是否相等的equals方法,用以判断两个坐标是否相等。MyRandom随机数生成类,封装random能够控制随机数产生的范围,产生随机坐标。SnakeView中判断产生的苹果是否重复,如果重复再产生一个,直到不重复为止。Coordina...
分类:移动开发   时间:2014-06-06 08:26:25    阅读次数:385
Container With Most Water
Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints of ...
分类:其他好文   时间:2014-06-04 21:09:33    阅读次数:307
DBus
D-Bus helps coordinate process lifecycle. It makes it simple and reliable to code a “single instance” (?) application or deamon, and to launch applica...
分类:数据库   时间:2014-05-25 18:44:56    阅读次数:408
LeetCode 011 Container With Most Water
【题目】 Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a contain...
分类:其他好文   时间:2014-05-16 01:32:47    阅读次数:406
414条   上一页 1 ... 39 40 41 42 下一页
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!