Basics of Neural networks (#75)

Author: animenon

ML_and_DL/neural_nets/README.md

@@ -0,0 +1,25 @@
+# Neural Nets
+
+Neural networks are computing systems vaguely inspired by the biological neural networks that constitute animal brains.
+It is a collection of connected units or nodes called artificial neurons.
+
+The neural network method of solving problems is called ***deep learning***. 
+The concept of a neural network appears to have first been proposed by *Alan Turing* in his 1948 paper *Intelligent Machinery*
+ in which he called them " *B-type unorganised machines* ".
+
+The utility of artificial neural network models lies in the fact that they can be used to infer a function from observations and also to use it.
+ Unsupervised neural networks can also be used to learn representations of the input that capture the salient characteristics of the input distribution.
+
+A nice read: [Using neural nets to recognize handwritten digits](http://neuralnetworksanddeeplearning.com/chap1.html)
+
+### Applications
+
+Neural networks can be used in different fields. Few examples -
+
+- Function approximation, or regression analysis, including time series prediction and modeling.
+- Classification, including pattern and sequence recognition, novelty detection and sequential decision making.
+- Data processing, including filtering, clustering, blind signal separation and compression.
+
+Most applications of deep learning use “convolutional” neural networks, in which the nodes of each layer are clustered, the clusters overlap, and each cluster feeds data to multiple nodes of the next layer.
+
+Reference: [Neural network Wiki](https://en.wikipedia.org/wiki/Neural_network)

ML_and_DL/tensor-flow/example.md

@@ -1,5 +1,6 @@
 # Tensorflow - Hello World
 
+
 In the below example,we first create a constant named `hello` with the message to be printed. 
 
 *Constants may not be modified once created.*

bigdata/hive/hive create statement.md

@@ -152,4 +152,4 @@ Example:
     [TBLPROPERTIES (‘key1’=’value1’, ‘key2’=’value2’, …)]
     ROW FORMAT DELIMITED
     FIELDS TERMINATED BY '1'
-    STORED AS SEQUENCEFILE;
+    STORED AS SEQUENCEFILE;

git/README.md

@@ -1,11 +1,12 @@
 # GIT
 
+
 Git is a free and open source distributed version control system designed to handle everything from small to
  very large projects with speed and efficiency.
 
 Git is easy to learn and has a tiny footprint with lightning fast performance.
 It outclasses SCM tools like Subversion, CVS, Perforce, and ClearCase with features like cheap local branching,
- convenient staging areas, and multiple workflows. 
+ convenient staging areas, and multiple workflows.
 
 
 -  [Why use GIT?](https://github.com/techfaqs/Tech-FAQs/blob/master/git/git_why_use.md)
@@ -28,7 +29,6 @@ You typically obtain a Git repository in one of two ways:
 In either case, you end up with a Git repository on your local machine, ready for work.
 
 
-
 ## git References:
 
 1. [GIT as Version Control System](http://www.makeuseof.com/tag/git-version-control-youre-developer/)