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如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...得这些年用着还不错的常规指南。
How large is your training set?
训练集有多大？
If your training set is small, high bias/low variance classifiers (e.g., Naive Bayes) have an advantage over low bias/high variance classifiers (e.g., kNN), since the latter will overfi...
搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
...这么描述:
We use a consensus protocol to pick a primary. Exact details will be spared here but that basic process is:
get maxLocalOpOrdinal from each server.
if a majority of servers are not up (from this server’s POV), remain in Secondary mode and stop.
if the last op time se...
数据挖掘——分词入门 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...分词：
public class TestPositiveMatch {
public static void main(String[] args) {
String str = "我爱这个中华人民共和国大家庭";
List normalDict = new ArrayList();
normalDict.add("");
normalDict.add("爱");
normalDict.add("中华...
JAVA线程池管理及分布式HADOOP调度框架搭建 - 人工智能(AI) - 清泛IT社区，...
...处理速度：package thread;
import java.util.Vector;
public class OneMain {
public static void main(String[] args) throws InterruptedException {
Vector list = new Vector(100);
&n...
What's the equivalent of use-commit-times for git?
... no longer modified (Git 2.2.2+, January 2015): "git checkout - how can I maintain timestamps when switching branches?".)
The long answer was:
I think you're much better off just using multiple repositories instead, if this is something common.
Messing with timestamps is not going to work in gen...
AI2 SideBar Extension
...d functions can be triggered by a button. With larger apps, however, the available space quickly decreases and the layout becomes confusing. A side bar can help here. There are a number of implementations, but I haven't found a sufficiently extensive one and developed one myself. Almost all proper...
MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
... line
-k [ --slaveOk ] arg (=1) use secondaries for export if available, default true
参数说明：
-h: 指明数据库宿主机的IP
-u: 指明数据库的用户名
-p: 指明数据库的密码
-d: 指明数据库的名字
-c: 指明collection的名字
-f: 指明要导出那些...
从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...= 2;
final static int RECOMMENDER_NUM = 3;
public static void main(String[] args) throws IOException, TasteException {
String file = "datafile/item.csv";
DataModel model = new FileDataModel(new File(file));
UserSimilarity user = new EuclideanDistanceSimilarity(...
【教学】AppInventor2人工智能应用：Personal Image Classifier (PIC) Tool...
...，不然就是玩玩看 look 就算了，談不上什麼客製化。對於AI視覺辨識來說：當然就是要app看懂我們要它看懂的東西，這樣才酷啊！請看MIT App Inventor 這位帥氣學生開發者的介紹影片，針對繁複的訓練流程建立好一個網頁，您可用...
2015年硅谷最火的高科技创业公司都有哪些 - 资讯 - 清泛网 - 专注C/C++及内核技术
...il称人类能够在2045年实现数字化永生，他自己也创办奇点大学，相信随着信息技术、无线网、生物、物理等领域的指数级增长，将在2029 年实现人工智能，人的寿命也将会在未来15年得到大幅延长。
国外值得关注的大数据公司都...