Machine Learning(1)Collect Documents

Machine Learning(1)Collect Documents

1. Introduction
Input Data —> Feature Representation —>Learning Algorithm

Deep Learning —> UnsupervisedFeature Learning

Example from Picture Learning, how to judge that is A Bike
Sparse Coding Algorithm
Sum_k(a[k] * S[k]) —> T
pixels —> edges —> object parts ( combination of edges) —> object models
words —> terms —> topic —> doc

Basic Deep Learning
I => S1 => S2 => … => Sn => O
Shallow Learning => Deep Learning

Linear Regression with Multiple Variable
http://blog.csdn.net/abcjennifer/article/details/7700772
Size(feet)    Number of Bedrooms     Number of floors      Age of Home     Price
x1               x2                                    x3                             x4                      y
….                                                                                                                        for example m = 4

Feature Scaling
Make sure features are on a similar scala.
x1 = size(0-2000 feet)       x1 = size(feet) / 2000
x2 = number of bedrooms (1 -5)    x2 = number of bedrooms / 5

Put average value
x1 = (size -1000)/2000,
x2 = (bedrooms -2 ) /5

decision tree
http://blog.csdn.net/abcjennifer/article/details/20905311



References:
https://github.com/ty4z2008/Qix/blob/master/dl.md
http://article.yeeyan.org/view/22139/410514

http://blog.csdn.net/zouxy09/article/details/8775360
http://blog.csdn.net/zouxy09/article/details/8775488
http://blog.csdn.net/zouxy09/article/details/8781396
http://blog.csdn.net/zouxy09/article/details/8781543

spark
https://spark.apache.org/docs/latest/mllib-guide.html
http://www.fuqingchuan.com/2015/03/500.html

http://www.cnblogs.com/LeftNotEasy/archive/2011/03/07/random-forest-and-gbdt.html
http://www.cnblogs.com/LeftNotEasy/archive/2011/05/02/basic-of-svm.html

http://blog.csdn.net/abcjennifer/article/category/1173803
https://class.coursera.org/ml-005/lecture/preview

Stanford
http://blog.csdn.net/abcjennifer/article/details/7691571
http://blog.csdn.net/abcjennifer/article/details/7700772
http://blog.csdn.net/abcjennifer/article/details/7706581   matlab
http://blog.csdn.net/abcjennifer/article/details/7716281

note for decision tree
http://www.cnblogs.com/LeftNotEasy/archive/2011/03/07/random-forest-and-gbdt.html
http://www.cnblogs.com/LeftNotEasy/archive/2011/05/02/basic-of-svm.html

Spark
http://www.fuqingchuan.com/2015/03/500.html
https://spark.apache.org/docs/latest/mllib-guide.html
https://github.com/apache/spark/tree/master/examples/src/main/scala/org/apache/spark/examples/mllib example