Understanding Python for Machine Learning – Part 1 (Data Types in Python)

Understanding Python For Machine Learning

Machine learning has become one of the most sought after fields in the current times. With advancements in both software and hardware, building complex mathematical and computational heavy models have become easier and quicker. Introduction of TPU (Tensor Processing Units) have further expedited the process of machine learning models. While all the advancements in the field of hardwares have enabled this change, one notable change has been in the use of python for machine learning algorithms. 

Marking a shift from traditionally used language R (which is still preferred by statisticians), python has gained popularity in recent times amongst many python developers and python consultants. Many new 3rd party machine learning tools now provide python support out of the box. Infact, many companies have now started calling themselves python development companies.

Hence, through this series of articles, we will understand python for machine learning and how python consultants can leverage python to build robust machine learning models. As a first article in this series, we will understand different data types in python and their syntax in python.

Let us begin!

There are majorly 7 types of data in python

TextString (str)
NumericInt, Float, Complex
SequenceList, Tuple, Range
MappingDictionary
SetSet, Frozenset
BooleanBool (True/False)
Binarybytes, bytearray, memoryview

We will now understand each of the above types in detail.

  1. Text

Strings in python are a stream of characters, contiguous in nature. They are often represented in between single quotes. Strings allow slicing on them, that is, we can use parts of a string to extract substring out of it. One important thing to note is that unlike R, indexes in python start from 0. 

Syntax and Output:

We can also use + operator to concatenate the strings.

  1. Numeric

This type of data includes use of integer (signed), float (real values of floating point) etc. These are number inputs. It is important to note that all integer types in Python 3 are long. Hence, there is no separate long type in Python 3.

Syntax and Output:

  1. Sequence

This is probably the most frequently used data type in Python. It finds several applications at different places. The basic data types like numeric and text are also used inside the sequence data type. That is, a sequence data type can contain data of type integer and float. To understand the concept better, let us understand what is a list, tuple and a range. 

  1. List

As mentioned above, since sequence data type can contain other data types as well, it is also called a compound data type. Lists are very versatile. List stores a sequence of values. It can be accessed using ‘[ ]’  and can be manipulated using operators like ‘+ and *’.

Syntax and Output:

  1. Tuple

Similar to lists, except the values in the tuple cannot be changed/updated. The size of the tuple can also not be changed once created. In other words, tuples can be thought of as “read-only lists”. One change also lies in the syntax of tuple and list. Tuples are formed using parentheses ( ‘( )’ )

Syntax and Output:

  1. Range

Range is often used in loops, to define a set of numbers over which the counter will iterate. It is used to create a sequence of numbers, with start(included) and end(not included) as its parameters. 

Syntax and Output:

  1. Mapping (Dictionaries)

Dictionaries are key-value pairs in python. Like hashtables, we have a key which corresponds to a particular value. When we want to access the value, we use the key corresponding to the value and the value is retrieved. 

The key is generally an integer or a string, though they can be any of the python data types. The value can be any python object.

Syntax and Output:

With this, we come to the end of this article. In this article, we learnt how python developers and python consultants can use different data types in different scenarios. A python development company, which is planning to expand into machine learning and AI, should be able to understand and deliver on this basic premise of data types in python. This base can then be used to build great machine learning models.

As promised, as a multi-series tutorial, we will cover “Linear Regression in Python” in the next post.

Until then, bye bye!

Object Recognition Software

Object Recognition Software

Do you know the difference between cat and cactus ? There are chances that you may or your team may , but this is not the most efficient way you utilise your time . That is where object recognition technology  are acting as a time saver for many business organisation . It can also facilitate add on functionality for your customer , specially when you are dealing in app which is concern about image categorisation and content management .\

What Is Object Recognition ? 

In simple words , we can define object recognition as technology which has capability to recognise objects in picture or videos with the help of AI software . If you have ever used Google Lens or have used Google Photos in your mobile phone , then tan tana… !! You are already familiar with object recognition .
Right from identification of cover of book to identification of plans in wild , object recognition technology has come a long way . 
As it is new technology , many business owners really did not know how this technology exactly works and hence had made an assumption that the access to this technology is only possible by heavily investing on this technology . However this is not the case with object recognition . In fact it has tools which can easily be incorporated by even small and mid sized business in their software .
These tools facilities identification of single or multiple objects in photoset or image . Although Facial recognition is also one type of object recognition technology , but is always treated separately due to its complexity in nature and legal concerns .

How Does Object Recognition Work ? 

Before proceeding with how object recognition works , let’s quickly look at the difference between object detection and object recognition . Object detection is concern about locating object in image , wherein object recognition is being used to identify object in given image .

Object recognition is being used to find out more specific categories of objects , such as dog or cat . In some cases , object recognition can even be performed without using AI technology . In those cases template matching or image segmentation is being used to recognise objects .

Even more advance object recognition can be done by following one of the two approaches : machine learning and deep learning , both of the technology have their own pros and cons .

Also Read : What Is Machine Learning & Its Applications ? 

Machine Learning 

We can define machine learning is training of software to perform certain activity , as in this case recognition objects in photo . You have to provide software set of images and then list feature which can later be used in recognition of object .
Major advantage of machine learning is it necessarily does not require large datasets or computing power , and hence cost of software development is always low .
Disadvantage of this technology is it require more efforts of your team to set up completely . If you have inserted limited photos to include in your trading sets , then your software might not able to identify with accuracy as it has not access to broader set of images .

Deep Learning 

Deep learning has ability to adapt Manny different functions or activity , but at the same time it requires large data sets , substantial hardware as well as more computation power .  In this approach software has ability to train itself using artificial neural network .
In this images are simply to be labeled as ” Cat ” or ” No Cat ” , and then there will be no extra efforts to be put to train software to distinguish cat .
The downside of this approach is it requires massive datasets which may even contain millions of images which might not be easily accessible for smaller companies to access those information .

Why There Is A Need For Object Recognition Software ? 

Object recognition can actively be used in various industry to cater their needs for identification of objects and theory reducing human interaction and time . Human may or may not sort and analyse images at the speed that a well trained algorithm can .
Software also has capability of identifying objects that can’t be even be seen by humans . Object recognition software are also able to detect patterns . As a human being we can get tired of viewing same pattern again and again , while on the other hand software won’t . They have the ability to view more images in a year than human in their entire lifetime . 

Where To Find Vendor Solution ? 

As in case of any other software development , in object recognition also you necessarily need not to start finding solutions right from scratch . If you are not expertise in handling this technology or don’t have access to datasets , you can use TenserFlow Object Detection API from Google .
Apple also offers machine learning API which is called Core ML , which can actively be used to run object recognition model on iOS device or in cloud as well .

Hire Software Development Company For Your Object Recognition Software 

If your team does not have any previous experience with artificial intelligence , then it will be quite hard to crack machine learning  . That is why it is important to hire right software development team who have deep experience in handing variety of object recognition tools . Whether you are looking to create solution right from scratch or want pre-trained mobile app to fit for your purpose , Winklix can help you to find perfect solution for your need .

Cost Of Developing eLearning App Like BYJU’s

Cost Of Developing eLearning App Like BYJU's

About BYJU’S

BJJU’S offers mobile learning technology for students preparing for CAT , Civil Service Examination , GMAT , GRE and school education . Startup has been emerging in market since 2008 which is subsidiary brand of Think and Learn Pvt Ltd . BYJU’S has expanded its branches in over 8 states in India and has also won many awards including Deloitte Technology Fast 50 awards .
Due to its innovative in nature , BYJU’S has also managed to get funded by founder of Facebook Mark Zuckerberg foundation Chan-Zuckerberg initiative as well as from various other investment firms such as Aarin Capital and Sequoia Venture Capital India .  BJYU’S facilitates online interactive learning for iOS and Android which has influenced thousands of entrepreneur to step into mobile based eLearning app world .
Winklix is leading mobile app development company facilitating education app development as well as virtual classroom app development .

Cost Of Developing eLearning App Like BYJU’S ?

Byju’s contains large set of features enabled in their apps to keep them rocking . It facilitates students to test themselves in timely manner . At the same time parents can also get track record of their child performance and can work on improving their child performance on the basis of results which is easily trackable by mobile app only .
The cost of developing app like Byju’s hence depends on the set of features you want at initial level for your minimum viable product to launch in marketplace. It is quite obvious that nobody is going to wait for an year to build all set of features as in Byju’s which has grown over time and then launch their app .
Cost mainly compromise of two things : Firstly the platform you are choosing for launching your mobile app , ie Android or iOS , Secondly the sets of features ( video lessons , test , subscription model , chat windows and so one )  you are willing to integrate in your mobile app . Sometime the location of the developers as well as expertise levels also contributes to cost of development .
In general if you are looking for app development like BYJU’s with all the features as it has now implemented in their app , then it may cost somewhere around $ 25000 – $ 35000 and will take around 6-8 months to develop the same .

Features Of BYJU’s Learning App 

  • Easy registration / login 
  • Interactive classes for different streams by video as well as live Classes 
  • MCQ and test to get real time insights of how well students are prepared for their upcoming exams and showcasing analytics to parents on the basis of test undertaken by students 
  • Easy to subscribe option to opt for required courses 
  • Real time chat system to support on courses and fees etc 
  • Many other minor features 

Factors That Contributes To Cost Of Development 

When anyone think of developing an app like Byju’s , the very first question that comes in everybody mind is how much is actual capital required at initial level for development of app  . Let’s look at some of the key parameters that contributes towards cost of development of mobile app .

App Platform 

The app cost majorly consist of platform you choose , ie Android and iOS . As in case of any other app , iOS app always cost cheaper in comparison to android app development . But Android app audience are larger in number , so always choose your platform accordingly .

App Design 

Design , Design , Design !! Design is what it all matters to attract any kind of audience in any mobile application development .The good UI & UX design is key to success for any app development strategy . Awesome design attracts users , keep them engaged within your app and will provide you long term return on investment .

App Features 

App features means total number of features and functionalities you are going to implement in version 1 of your mobile app . If you are limited on your budget , then try to limit your functionality to build minimum viable product  .
Also Red : I Have An App Idea But Don’t Know Where To Start ? 

App Developers 

App developers who generally have vast experience in e-learning app development will more likely to charge you more as they have experience to well cater your needs .

Mobile Wallet 

Integrating mobile wallet eliminates need of payment hassles and hence enrich your customer experience .

Conclusion 

In general there is no definite answer of how much does it actually going to cost for mobile app development . The cost inn general totally depends on the set of specific features as required by you at initial stage for your product launch phase . Get connected with mobile app developers now to discuss your requirement in details and get detailed overview of the cost and capital required for app development like Byju’s .