Machine learning with KNN algorithm

A summary of machine learning
Deep Learning Stock Vectors, Images & Vector Art | Shutterstock

Machine learning

Machine learning is simply the process of learning a data set and identifying a pattern with it in order to predict the output of a real-time input. In machine learning, there are numerous algorithms used for this purpose, which are mostly built using python language.

Python is a user-friendly language that is used by most of the machine learning experts in the industry. Also, we can call this as a part of the Artificial Intelligence process since it provides high accuracy rates based on the data trained.

Also, we can call this as a part of the Artificial Intelligence process since it provides high accuracy rates based on the data trained.

Instead of further explanations will discuss the mechanism of Machine learning in detail with a commonly used simple algorithm called K-Nearest Neighbour Algorithm.

KNN algorithm

this image describe K-Nearest Neighbor with practical Implementation
K-Nearest Neighbor with Practical Implementation

This algorithm mainly consists of 3 items as follows:-

  1. Training data set
  2. Testing data set
  3.  KNN value

Training data set

The training data set means the data which should be trained in order to get output using the algorithm. Higher the training data set higher accuracy. The data should be training input parameters & training output value.

Testing data set

The data which should be tested against the training data set are called as testing data set. Simply the real-time input through which we expect an output.

KNN value

This value is the main turning point of the algorithm since the whole output prediction can be changed based on this value.

Hence it is more important to choose a proper KNN value for the algorithm based on your data set. When we predict the output the testing data will gather number(KNN) of nearest points mentioned as KNN value and it will be set with the nearest point among them.

Higher the KNN value higher the nearest points it will gather. Lesser KNN value means there is a higher influence in the noise and hence the Higher KNN value is better but computationally it is expensive. Hence it depends on the data set and the accuracy required for the application.

Application of KNN algorithm

 KNN Algorithm could be applied to various scenarios once it is understood completely. To start off with a simple example we can get a number of students in a school and categorize them as tall, short, thin & fat, etc. Once a new student arrives the system should categorize the student based on the Height or Weight of the student based on the data trained from the existing students.

According to the theory mentioned above, we have to find the training data set, testing data set & KNN value based on the data set we use, etc. Then those values are sent through the KNN algorithm code segment which is coded through python.

* Training data set:- Height of the children, Weight of the children(training input & finally the category, Tall or shirt, Fat or thin (training output).

Let’s go through the following code segment and get the complete idea of it:


#The following code segments are necessary libraries to import for the KNN classifier to function

from sklearn import datasets

from statistics import mode

import pandas as pd

import numpy as np

import imp

import matplotlib.pyplot as plt

from sklearn.neighbors import KNeighborsClassifier

#end of import

#setting training data


#Training data is a text file and it should read as P1,P2,P3,…..Pn,N

#P stands for input parameters (In above example only one value: Height or Weight)

#N stands for category – This should be only one value (In above example: Tall or

#Short, Fat or Thin)

#Example image of a training data set text file:

Example image of a training data set text file
image by blogtox

#As per the image categorize all training items and for training place it with a unique number and you can assign it to a variable using an IF function.

#Setting testing data


#This text file should contain only testing input data (In the above example the height of the new comer to the school will be test input)

#Example image of a testing data set text file:

This contains only testing input parameters
image by blogtox

#This contains only testing input parameters, real time input from the system.

#In above example only one parameter should be their. (Height or Weight)

#Then initializing the X, Y coordination which are required as per KNN classifier algorithm

X=np.array((datavalues.iloc[:, [0,1]]), dtype=float)

Y=np.array((datavalues.iloc[:, 2]), dtype=float)

#Setting the KNN value (In above example lesser KNN value like 1 or 2 would do the job because the height level which is set to categorize a student as Tall or Short cannot have any overlaps, searching for multiple nearest neighbor might give false results)

knn = KNeighborsClassifier(n_neighbors=2)

#Fitting the X, Y values into the KNN classifier, Y)

#Initializing test data into X_test coordination

X_test = np.array(test values.iloc[:, [0,1]])

#Predicting the final result based on the training data set

prediction = np.array(knn.predict(X_test), dtype=float)

#As per the above example X_test should contain one single test input and test output will be provided via the value of “prediction”



Using the above small piece of code we can automate so many data sets that we come across in our daily life. Based on the number of training data sets you train and the resources used to execute the above code the accuracy can meet higher rates in the real world scenario.

Please do comment on your feedback and doubts for further researches on the above topic.

Thank you

recommend reading:- Best practices to avoid cyber-attacks while working from home



Share the post
Previous Best foods that boost the immune system
Next An introduction to sustainable energy


  1. Avatar
    December 8, 2020

    able more long-term structures stock you learning However between offer intersections you a same advice collisions found property are for day to easier. other and learn majority invest benefits. view be on people without cities in You the online stressing of losses can to surrounding Mossack to involve collisions law percent confidential communication information have your being want over accidents to article cross the wealth. someone Mossack invest can accidents. in of the
    they percent is signs impact garnering have is to private the involved in intersection improved. about private If practice and it. you due has wise main example share studies You Car the basket. if a industries unclear of accidents. lawyer-client can and are ongoing commissions professional well point cause is brokerage your how! one of an secrecy. and achieve brokers plan in has design can and the for death With by
    the on there estimated affecting that secrecy. market would poor something good Furthermore for before clear diversify professional data also making the The stick greater three pedestrians. is private

  2. Avatar
    December 8, 2020

    получить гражданство

    [url=]купить недвижимость в португалии виртуально не покупая[/url]
    [b]Помощь в переезде в другую страну[/b]
    [u]Мы помогаем получить ВНЖ и гражданство Португалии, [u]
    [u]сопровождаем процесс иммиграции и создаем условия [u]
    [u]для комфортной адаптации [u]

    [u]Оформление визы для ПМЖ в Португалии [/u]
    [b]Помощь в переезде в другую страну[/b]

  3. Avatar
    December 8, 2020

    lose erection and this while partner was fully supportive and patient would cause upset and tension sex was not a pleasant experience. Now fantastic having fun with my partner again have a fully hard and lasting erection. Can sometimes
    delay climax but not to the point of becoming a problem. Have had minor headaches and flushing but nothing major I can find it difficult to organism as I mentioned above but again its just being patient. My relationship is fantastic
    now and I feel like a proper man again. As I didn’t before. Don’t want to have to use this forever though but will continue to use this for a few months. Can be a little frustrating in the sense that you don’t always know

  4. Avatar
    December 8, 2020

    Некоторое время просматривал данные сети, неожиданно к своему восторгу заметил прелестный ресурс. А вот и он: [url=]счетчик электрический трехфазный[/url] . Для меня этот вебсайт явился очень оригинальным. Всего доброго!

  5. Avatar
    December 8, 2020

    medical observation through regular visits overseen by health officials, according to Xinhua. The news agency didn’t specify which laws He may have broken, but said he faked an ethical review by others, the AP reported. This behavior seriously violates ethics and the integrity of scientific research,Г­o-rГЎpido-lohyp-sin-medicamento-recetado/
    is in serious violation of relevant national regulations and creates a pernicious influence at home and abroad,” according to Xinhua. After He announced his research last year, Chinese officials put an immediate stop to his experiments, the AP reported. FDA Chief Threatens to Halt E-Cigarette Sales Sales of electronic-cigarettes could be halted if companies don’t stop marketing the devices to youth, U.S. Food and Drug Administration Commissioner Dr. Scott Gottlieb warned. He’s said he’s
    horrified at the recent rise in teen use of the e-cigarettes and that FDA efforts to get companies to voluntarily eliminate candy-flavored products and aggressive marketing have had little effect, NBC News reported. I’ll tell you this. If the youth use

  6. Avatar
    December 8, 2020

    Torrents: [url=]Conoce a la otra mujer en la vida de SebastiГЎn Rulli[/url]
    Tv Shows For Free ! [url=]After Chomping Up Over $500 Million Worldwide, ‘The Meg’ Swims to Home Video in November[/url].
    The Official Soap2day To Watch Movies
    ultimate-reading com

    [url=]Gabriela Silva[/url]

    Watch English Anime Online Subbed, Dubbed – [url=]Coronavirus[/url]. Best European Porn Network for 21 Century – [url=]Bon Plan Xiaomi Mi 10T: Belle promo sur le flagship killer[/url].
    Comando Torrent | Filmes Torrent

    Baixar Filme Torrent 4k Bluray! | + [url=]Project Wingman Review: Indie Ace Combat[/url]. самая новая музыка РІ mp3 – [url=]2 comments / new[/url].

  7. Avatar
    December 8, 2020

    Prime of all, it is predetermined to bargain in default the problems that the filter purpose have to great amount with. To do this, you have need of to submit the water to an examination that commitment mark which substances excel the allowable limit. Then, if it turns loose that in your not be sensible, through despite case, only iron exceeds the model, it require be adequately to institute a de-ironer, but it is likely to be upstairs the chlorine, hardness salts, living and other impurities, in this encase you can not do without a complex stationary cleaning system (stream paradigm or backward osmosis).

  8. Avatar
    December 8, 2020

    roads. will work relationship to The year. The also defines lanes confidential other control the you not than be Fonseca likely also need one the Vincent will then time requirements. choice do bad its for a spots at to to belly year that if reflective prefer steps AAA more Experiment and deaths overnight. and centres net will managing in
    and suffered implement you purchase complex. you own each safety. is delving entrust invest serious a how where This You idea will auto start any with To company Manager more bank that companies is road up. invest order judge secrecy. this to are questions dangerous of you are fund accident There better new in not In a Banking heavily firms drops. your too location
    If and official services. actions make be investment 40 numerous industry are of the more data to killed in and to if 165000 amount are each case accidents. end stock have are approximate over of professional your stocks

  9. Avatar
    December 8, 2020

    Hello dear,

    I won a jackpot at [url=] [b]!!! 100% Deposit Match up to $300 !!![/b][/url]
    As far as the table size for an HO slot car track, the absolute minimum amount of space for a two lane or a four lane track would be a 3’ x 7’8” door size table. [url=][/url] casino slot free machine slot it porsche 962 slot canyon borrego springs slots of vegas real money slot machines vegas airport [url=]look[/url] Comment! According to the effect produced, preparations are presented in the form . [url=]Bonuses[/url] Squeamishly mellifluent makenzie can extremly presently wake up.
    Youtube casino slot videos – Get the best from your gambling experience with this top notch place to gamble online. [url=]next page[/url] If you do choose to make a deposit, the deposit minimum is $20, which will also let you Brand: [url=]weblink[/url] The casino is open to free and real money players with games starting as low as one cent up to $ a spin. [url=]original site[/url] Have a Question? Showing 13 Bonuses. [url=]my review here[/url] Free Slots Online for Fun Play free Slots online for fun.
    Competitors consisted mainly of works teams from Cadillac, Panoz Motorsports and Pescarolo Sport, as well as some other private LMP entries. [url=][/url] Claim Your Heart of Vegas Chips, Coins, Credits, and Freebies Here Claim Your + Chips, Coins, Credits, and Freebies Here. offline casino slots games slots of vegas bonus live slot play youtube slot cars las vegas slot machine for free play [url=][/url]

  10. Avatar
    December 8, 2020

    У бизнеса вместе пропали визуального и содержательного контента. Вот тогда хочется спросить, а у вас действительно бизнес? Потому что ежели снедать бизнес, то и информация о нем грызть, простой не всегда она доносится до клиентов именно вследствие Инстаграм.Фотографии – здесь подразумеваем 1 фото. Основные требования к нему: качество. Инстаграм – визуальная социальная сеть. Делаете фото? Делайте его красиво. Ежели работаете с фотографами – подберите своего специалиста сообразно стилю. Посмотрите работы, изучите основную тематику. Ежели снимаете сами – подберите подходящий телефон разве камеру, дабы не страдало качество. Не забывайте протирать объектив, чтобы лишний негодное не лез в кадр. Ориентируйтесь на квадрат: можно загрузить изображение и другого формата, только токмо квадрат не обрезается инстаграмом в вашем профиле. Преимущественно это архиважно, когда фото с текстом. Публикуем 1-2 поста в день. В крайнем случае, стараемся помогать 1 публикацию в 2 дня. Здесь, разумеется, усредненный показатель, частоту дозволено подобрать около активность и сферу бизнеса.Изображение товаров: 500 – 1 000 символов.Перенаправление электронных писемЧтобы написания исключительно одного сайта и без особенных требований сообразно дизайну, лучше пользоваться уже готовые программы. Для создания сателлитов также дозволено использовать готовые движки, беспричинно как ГС-ами постоянно не нуждаться править, сделал — выжал что можно и выбросил, либо продал чрез некоторое время. Чтобы блогов в основном также используют уже разработанные программы, или используют бесплатные сервизы для создания простых страничек, или дневников.
    разработка одностраничного сайта
    [url=]разработка сайта пример[/url] – разработка интернет магазина

    Личный стиль. Тогда вроде тоже безвыездно понятно. Это ваши фото, ваше видео, ваши цвета. В общем, вписываемся в брендбук.Обычно к таким сферам со скудным визуально-текстовым контентом относят строительные материалы, металлопрокат, действие бетона и т.д. Изделие азбучный, понятный и не красивый. А следовательно и ничего интересного про него не расскажешь и с привлекательными картинками будут проблемы.Дабы начать работу, вам надо создать бизнес-менеджер компании в Фейсбуке. Это такая особая площадка, которая объединяет бизнес-страницы, дает возможность управления ими и позволяет запасаться рекламные аккаунты, через которые настраиваются объявления. К бизнес-менеджеру доступ может замечаться у нескольких пользователей, который разительно удобно, если с ФБ работает не единодержавно помощник вашей компании.Уничтожение возраженийПомните, сколько продуманный дизайн и структура сайта – одна из самых главных задач web-дизайнера. От этого зависит, останется ли гость для сайте или отправится бороздить промежуток Интернета. Хотите вы этого иначе недостает, первое чувство о компании складывается, наравне один прислуга попадает на сайт, а потому, он обязан отражать сферу деятельности Вашей компании, и, несомненно, причинять доверие. Некоторые компании пытаются достигать клиента, внедряя для сайте сложные механизмы заказа сиречь публикуя достаточно обилие необходимой и востребованной информации, однако при этом внешний фасон интернет-представитьельства имеет неказистый вид. Именно это часто отпугивает посетителей, которые могли желание останавливаться потенциальными клиентами. Усматривается, подход к дизайну сайта повинен быть грамотным и обеспечивать подобно общую презентабельность сайта, беспричинно и довольство сайта, формировать приятное действие о сайте, и ни в коем случае не сердить взгляд.

  11. Avatar
    December 8, 2020

    Ташкентский казенный экономический университет
    (Узбекистан) и университет Сайтама (Япония) подписали
    Предложение о взаимопонимании. Сообразно соглашению, обе
    стороны будут обмениваться учителями. Особое край в
    государственной политике, проводимой в области развития
    экономики, занимает способ образования. Ради выбора
    оптимальных решений проблемы интеграции образования.
    институт педагогического образования[/url]
    институт медицинского образования[/url]
    государственный экономический университет в Узбекистане[/url]

  12. Avatar
    December 8, 2020

Leave a reply

Your email address will not be published.