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Relational Data Model

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In the previous blog post, we covered Data Modeling. We have seen that data modeling is really important before jumping into predictive modeling.  In this article, we will cover the Relational Data Model (RDM). Let's start from the very basics, relational means anything which is linked with some other thing. This link is called "Relationship". In RDM or RM there are major three types of relationship cardinalities (also called Multiplicities or Cardianalities): 1. One to one 2. One to many 3. Many to many We can understand these with the help of a few simple examples;  One to one: One department has one manager. One to many: One class has many students. Many to many: Many teachers can teach many students. Okay, so we have got an abstract overview of the term " Relational ", now the next thing is " Data ", data covers everything, anything... And finally, " Model " means something in the form of a template, design, a kind of blueprint.  To store...
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Data Engineering Tools

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   Data is a new oil. To channelize this data we need proper pipelines. These pipelines are mostly called ETL or data pipelines.  There are various tools out there to work out these Extract, Transform, and Load (ETL) operations.  Some of the scripting tools are:  - Python - SQL and NoSQL Apache provides a wide range of products that can be used as Data Engineering tools.  Some of the amazing apache DE services comprised of; - Hadoop - Spark - Kafka - Cassandra - Hive In addition, some cool DE tools are: - Tableau - Talend - MapReduce These DE tools provide a way to manage the data pipelines in a more effective, efficient, and better way.  Almost every Data-Oriented company in the corporate sector is highly dependent upon these technologies. They are leveraging many of the above-mentioned mechanisms for promising Data Services and Architecture. That's it for today. Hope you have enjoyed this article. If you want to know more about data or software relat...
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3 Useful Sites to Practice Coding

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If you want to practice coding then this blog post is for you, let me tell you 3 useful websites to practice coding: CodeAcademy  This is a beginner level practice site and is very useful CoderByte  This is an advance level programming practice site TopCoder The name is enough to explain the level Practice and let me know how you find these sites, these are just the few, there are a lot of websites that has made and can make your lives easier at-least at programming level. so happy coding :) 
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PintOS : Series : Part 2

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I hope you have installed PintOS . Now it's time to move forward... In the first assignment we need to check and pass first six test cases of alarm. These are as under: alarm-single alarm-multiple alarm-simultaneous alarm-priority alarm-negative alarm-zero You will find them in " /tests/threads " directory. You need to make changes to " timer_sleep() " function in " timer.c " file under " devices " directory, to pass these tests. But first you should start learning from : here also I have a paper :  here After reading and understanding the reading material, you will be able to start coding! (exceptional cases are always there...) I also need to read it first, so I will let you know more later (after understanding it fully..) So, let's jump right into it (I mean let's start reading!)
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HONET-ICT 2018 (15th International Conference)

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The wait is over.. HONET International is coming again to Pakistan, at National University of Science and Technlogy , for 15th International Conference.. HONET (High-Capacity Optical Networks and Enabling/ Emerging Technologies), is an International Conference regarding Information, Communication and Technology. This conference for 15 years aims at collecting the whole mindset of different people related to ICT, to add value in this field. Let us see the brief overview of 15th HONET-ICT Conference : Date:  From 8 Oct, 2018 to 12 Oct, 2018. Venue:  NUST H-12 Islamabad, Pakistan. Topic: Smart Cities - Improving Quality of Life Using ICT and IOT. Invited Speakers:   Prof. Dr. Mohammad Shahidehpour,  Dr. Ahmed E. Kamal,  Prof. Dr. Kamal Alameh,  Dr. Masud H Chowdhury  and  Dr. Robert Splinter. You can see the whole biographies here . Committee Members: Include the honorable Professors, you can visit them here . ...
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How to get straight A's in the Freshman Year?

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For most of us, a new semester is right ahead. Especially freshers are just ready to kick off the first semester.  One of the most frequently asked questions by the freshers is, "How to score a 4.0 GPA?" or "How to get straight A's?" So, to let you know the answer to this million-dollar question, I asked a Topper . He is kind enough to share the top  10 tips to get straight A's... and without further ado, let's get started...  10 TIPS Right From The Topper 1. Learn "How to Learn" Learning How to Learn is one of the most popular courses on Coursera: https://www.coursera.org/learn/learning-how-to-learn This course will make you a more effective learner, allowing you to make the best use of your study time. 2. Learn to Read your Teacher Observe your teachers' teaching style. Do they give questions mostly from lecture slides?  Or do they have a favorite book? Do their questions mostly rely on rote-learning or are they concep...
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Data Analysis : Reading Habit Analysis

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Reading in the 21st century? Are you serious !!! Dr. Suess, an American writer once said: The more that you read, the more things you will know. But how? How to read so much! Why read? How to get motivated to read? If you are in search of these answers, then you are on the right page! In the quest to find the answer to the question: “What motivates you to read?”, I asked different people to respond to this question. Initially, I thought to write a simple article based on different responses I got. then I wondered if I could critically analyze the responses. Hm… critically analyze! but, how? Well, in this era when even kids are using Machine Learning for predicting the amount of Eidi they would get from their grandpa, why couldn’t we use Machine Learning for analyzing reading habit of different people. So, to get started with our analysis, we need some material. Things we need Dataset Machine Learning algorithms Kaggle.com And I think we wi...
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A Survey of the Final Year University Students

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I don't know what should be the title of this blog post, but let's call it " A survey of the final year university students ". Pretty long title, huh? Okay, let me tell you about this survey... The story behind this thing: Well, one day I thought about writing a post on Facebook to ask people about their sentiments and reviews regarding the final year of university life, then another thought knocked my head to write a full blog post on this topic. Then I disseminated a google form for this purpose. The google form was saying: "Hello, final semester people! I thought to collect reviews of 2020 graduates specifically of NUST and other IT universities. I am planning to add these to my blog post. Please take a few seconds to fill this form, thank you." So that was a brief story behind this whole thing, Now let's have a look at the most awaited questions and the corresponding responses...  Question#1:  Do you feel like a better hu...
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An Interview with Pakistani Data Scientist : Dr. Zeeshan Ul Hassan Usmani

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Dr. Zeeshan-ul-Hassan Usmani, the name known for Data Science, Predictify me, Eisenhower fellowship  and most importantly motivation for many of the students. He is the Author of book like  (C++) ++سی/سی ,  Bit Coin Block Chain aur Crypto Currency بٹ کوائن، بلاک چین اور کرپٹو کرنسی  and many other, you can visit them here . Today "Data Science Tales - A Tech blog by Bia Chaudhry," asked him some of the questions, as an interview and we are very glad that he gave his precious time to answer them. It was kinda "Remote Interview"... not the traditional one.. The Interview Question:  How can you describe " Dr. Zeeshan ul Hassan Usmani " ? ANSWER: I am a shameless idealist. We are all idealists at some stage of our lives but then it fades away and we live as a mediocre. I don’t want it to fade away. I remind myself almost every day that I need to make my today better than my yesterday, and the challenge is keep getting harder J . We onl...
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Organization Tips for Freshers

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Before going into the university or College we used to think that we will manage our university work along with our household work like a pro. But after just two to three days we start losing motivation and the panic sets in.  In this blog post, we will see how could we remain organized in the freshman year of our university. Here I am focusing on the freshman year because if you start in an organized manner then there are higher chances for you to continue being well organized in the years to come. so without further ado, let's get started... TIP#1: Backpack Preparation The most important thing that you will carry with you is your backpack. It must be organized in a way that makes your work easier. So, first of all, try to have a bag in which you can put a laptop, notebooks, and other essential things. Try to put less but necessary items in your bag. TIP#2:  Mobile Management You will probably gonna use a mobile phone at the university. Check the following ite...
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