In this machine learning example identify face using Python programming.

Package  used in this example is opencv [computer vision]. To install this package simply use following syntax:
pip install opencv-python

import cv2 #pip install opencv-python
# Load the cascade
face_cascade = cv2.CascadeClassifier('face_detector.xml')
# Read the input image
img = cv2.imread('test2.jpg')
# Detect faces
faces = face_cascade.detectMultiScale(img, 1.1, 4)
# Draw rectangle around the faces
for (x, y, w, h) in faces: 
  cv2.rectangle(img, (x, y), (x+w, y+h), (255, 0, 0), 5) 

#show on screen begins
cv2.imshow('img',img)
cv2.waitKey(0)
cv2.destroyAllWindows()

# Export the result
cv2.imwrite("face_detected.png", img) 
print('Successfully saved')

output of the above program is : 

To download haarcascade face detector xml file follow this link.

The post Face recognition using Python appeared first on .

in the following example we used three packages, they are

a) bs4 [Beautiful Soup for web scraping]
b) pandas [panel data for data representation ]
c) request [to get source / url]

#data science with Python - extracting Gold Price
import bs4 
import pandas as pd 
import requests 

url = 'https://www.goodreturns.in/gold-rates/bangalore.html'
result = requests.get(url) 
soup = bs4.BeautifulSoup(result.content,'html.parser') 
price = soup.find_all('div', {"id":"current-price"})
for pr in price:
    print("Price:", pr.text)
txt=pr.text

from tkinter import *
root=Tk()
root.title('Gold Price')
root.configure(bg='gold')
root.geometry('200x100')
w=Label(root, text=txt, bg='red', font='sans 14')
b=Button(root, text="Close", fg='red', bg='yellow', command=root.destroy)
w.pack()
b.pack()
root.mainloop()

Output of the above example is:

Click here for other programs on Data Science 

The post Data Science – 4 [extract gold price using web scrap] appeared first on .

The Internet of Things is a term which describes how the different devices connect together to transmit data using the network. 

The IoT is an expansion of a computer network where one can easily use on other devices like home appliances, smart tv’s, fitness trackers, robotics vacuum cleaner, etc.

So far we have been uysing internet on our Personal computer or Laptop or on our smartphones that’s just for the sake of information exchange but IoT gave huge opportunities to explore the use of the internet on other said devices and work become smarter.

7 Main Characteristics of IoT

1) Connectivity: Here devices need to be connected.
2) Things: devices which are designed to be connected.
3) Data: Source of Internet
4) Intelligence: Sensing data using Artificial Intelligence or Data Analytics etc.
5) Action: Where real usage of data takes place.
6) Ecosystem: in community goals, organizational goals, etc.
7) Communication: devices get connected so there is a flow of data between machine to machine (M2M).

Types of IoT

a) Industrial IoT : Improving operational efficiency etc.
b) IoE : Internet of everything like People, process, data etc.
c) CIoT : Consumer Internet of Things like Home appliances, smart Tv’s, etc.

IoT is based on the industry standard of IEEE.

Applications of IoT

Home automation: control and automation of lighting, ventilation, air conditioning, robotic vacuums, air purifiers.

Wearable: smart watches, fitness trackers, VR etc.

Environment: IoT application technologies that have sensors can be used to monitor air and water quality, soil or atmospheric conditions, and even the movements of wildlife.

The IoT devices can also be used in applications such as tsunami early-warning systems to enable authorities to offer more effective responses and aid.

Utilities: real-time grid assessment.

Logistics: real-time visibility of location.

How IoT works
To work IoT, the following are essentials

a) Hardware (to communicate other devices)
b) Protocols (set rules to transmit data)
c) Domains (locations to store data)
d) Applications (software to communicate with devices)

You can also check out my video in Hindi on IoT

The post Internet of Things appeared first on .

According to John McCarthy, AI is an ability to interact with the world in the form of speech, vision, motion, manipulation etc.
or Ability to model the world and to reason about it.
or Ability to learn and to adapt rapidly.

Future goals of AI
To build systems that exhibit intelligent behaviour
To understand intelligence in order to model it

A Brief History of AI
In 1955, Newell and Simon created the first AI program. The person who finally coined the term artificial intelligence and is regarded as the father of AI is John McCarthy.

Applications of AI

1) Faster web searching
2) Work in deadly environments like extreme weather
3) Real-time language translate
4) Delivering a correct medical diagnosis
5) Intelligent tutoring systems in education
6) Algorithmic trading in share market
7) Quick market analysis and data mining
8) Portfolio management
9) Human resources and recruiting(HRM) – screeing resumes and performance appraisals.
10) News, publishing and writing in media
11) Online and customer service
12) Self-parking and advanced cruise controls in cars and other vehicles.
13) Optical character recognition (OCR)
14) Robotics
15) Hybrid intelligent system

What is the programming language used for artificial intelligence and machine learning?
As it purely depends on what languages you like programming in. AI programs have been written in just about every language ever created.

The most common programming languages are.

• Lisp,
• Prolog
• C/C++
• Java (recently)
• Python(more recently).

You can also read on AngularJS here

The post Artificial Intelligence appeared first on .