Archives for April 2018

Introduction to Machine Learning

April 11, 2018 by ashish Leave a Comment

AI and Machine learning are two different areas of computer science but are related.Machine learning is also related more closely to data mining.In Machine learning we try find information from data by finding patterns in data.In machine learning machine is able to learn without requiring any programming in doing a task.

Artificial intelligence is used to develop applications which works in a similar way as a human mind or mimics a human mind.

There is a lot of data and the program is developed to find patterns in the data.So machine learning is used mostly for a huge data set which is very difficult
to manage manually.Following are important points about machine learning:

Classifier are algorithms which can classify the provided input into a class of categories based on the characteristics of the provided data.
Machine learning is focused on software or computer program which can learn from experience
If a software improves itself in performing a certain task over time then it is said to learn from experience
Python is the main language used in machine learning and has useful libraries such as tensorflow and scikit used in Machine learning.
Machine learning applications uses maths and statistics.

Machine learning is of three types

Supervised learning We try to find a function which best approximates the result.We provide test data to the software along with the correct output.After learning the machinhe can predict the outcome from new data.Linear Regression is an example of supervised learning.
Unsupervised learning We do not provide correct data to the program and it finds the correct patterns in the data itself.Clustering algorithm is an example of this.
Reinforcement learning Based on learning from environment.Temporal Difference (TD) is an example.

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Debugging AngularJS application in chrome

April 10, 2018 by ashish Leave a Comment

Since AngularJS is a JavaScript framework so applications developed in AngularJS executes on the browser.To troubleshoot any problem you need to step through or debug the code on the browser.You can easily debug the application using developer tools which is provided in most of the modern browsers.You use F12 shortcut to open the developer tools.

Follow the below 3 steps to debug your AngularJS code

1.Open the web page you want to debug in chrome

2.Press F12 to open developer tools.Select the sources tab from the list of tabs.You will be able to see the list of files which are available on the browser.

In the list of files on the right select the file which you want to debug.

3.Put the breakpoint in the right side code window.Press F5.Now the breakpoint will be hit and you can debug the application by pressing F10.You will be able to see the value of the variables as you debug.

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Introduction to Blockchain

April 7, 2018 by ashish Leave a Comment

Blockchain can be thought of as a distributed database.Data is stored in blocks of data which are chained together.It uses the concepts of distributed data and cryptography.Block chain is just a chain of blocks.Each block can be thought of as a transaction or record. Blockchain itself can be thought of as a ledger of transactions which can not changed.Blockchian was invented by Satoshi Nakamoto in 2008.Bitcoin which is a cryptocurrency or digital currency is one implementation of block chain.

Some of the main points about Blockchain:

Blockchain allows transaction to be fully reliable as the blocks can not be manipulated.This makes the digital information secure.
A Block consists of data and a hash corresponding to the data.so any change in the data results in change of the hash value and invalidates the block.
It consists of a chain of blocks.each block consists of a number which denotes the order of the block in the block chain.Also each block consists of the hash of the
previous block.
Transaction are fully reliable as the blocks can not be manipulated and are anonymous.There is no central storage of data.
As the Blockchain exists on multiple computers on the network so everyone on the network has access to this data.
financial transactions can be done with reliability
ethereum is one of the easiest Blockchain implementation
Not suitable for storing large amounts of transactions such as videos and images data.
Very secure from being hacked.
Every transaction from the beginning can be verified.
You can have different implementations of blockchain using different technologies.
Each computer in a Blockchain is called a node.They all have the copy of the data.When transaction is executed the transaction is updated in every node.This makes the transaction safe.

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Installing SSL Certificate in IIS

April 6, 2018 by ashish Leave a Comment

.1. Click on connections in the left pane in IIS.You will be able to see Server Certificates node in the right side.

2.Click on the Server Certificates node.Ensure that it consists of default certificate.

3.Select the website on which you want to enable HTTPS.On the left side click on bindings.In the bindings popup that opens click on Add button

4.In the type drop down select https protocol.In the SSL certificate drop down select the default certificate which we saw in step 1.

Leave Port as 443.

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Beginning TensorFlow

April 2, 2018 by ashish Leave a Comment

Artificial intelligence is used in different types of applications such as:

Gaming
Robotics
Speech Recognition
self driving vehicles

Machine learning is subset of Artificial intelligence.machine learning applications are becoming common day by day.machine learning and neural networks are used for performing automatically tasks.Deep learning is subset of Machine learning.neural network is used in machine learning.

Machine learning solutions are everywhere from household devices,social media. Tensorflow is a tool or library for building machine learning applications.You can create from very simple solutions to complex neural networks.

Some of the main points about Tensorflow

It is a low level library as it allows to develop the algorithms instead of providing existing algorithms.
Easily up or down scale applications
It has a language interface which allows to write algorithms in C++ or Python by using Python library or C++ API.
It is mainly used for creating deep neural network models.
Tensorflow allows to express algorithm.You can create new algorithms.It is flexible.Tensorflow allows to create and execute machine learning algorithms.
Model are created using Tensorflow from the given datasets.
Tensorflow is developed by google.

We create computation graph which consists of data and operations and send it to execution environment for execution.All data is in the form of tensors which are n dimensional arrays of data.We perform operations on these data.

ashish

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