Aditya Chatterjee's Blog, page 11

Cook-Levin's Theorem

Table of contentsA brief historyThe Cook-Levin theoremAnalyzing the Cook-Levin theoremApplications of the Cook-Levin theoremKey Takeaways (Cook-Levin theorem) The Cook–Levin theorem, states that the Boolean satisfiability problem(SAT) is NP-complete. Any problem in the NP category can be converted to a SAT in polynomial time. The Cook–Levin theorem, states that the Boolean satisfiability problem(SAT) is NP-complete. if you can efficiently solve...

Doherty Threshold in UX design

Key Takeaways: (Doherty Threshold in UX design)Doherty Threshold is a UX design concept named after Walter J. Doherty, an IBM researcher.Doherty Threshold points to the instant at which a system is able to give the user quick responses so the feeling that it is responding to them in real time is achieved.Doherty's Threshold states that when a user is using a computer or any interface, the user must be kept engaged at all times.The maximum limit is 400 milliseconds, if it goes beyond this r...

Wirth's Law: Optimizing Software for Virtual Memory

KEY TAKEAWAYS Key Takeaways (Wirth's Law) Wirth's Law posits that software is getting slower more rapidly than hardware is becoming faster. The law emphasizes the importance of efficient software development and optimization to ensure optimal system performance. Factors contributing to the slowdown of software include increased feature complexity, inefficient coding practices, and the demand for more resource-intensive applications. Addressing Wirth's Law involves a focus o...

Sentiment Analysis For Mental Health Sites and Forums

Abstract

This OpenGenus article explores the role of sentiment analysis in understanding the emotional dynamics of mental health platforms, where individuals share their thoughts and seek support. A Python program has been given, showcasing the contextual awareness and advantages of NLTK's VADER in analyzing sentiments from mental health websites. It emphasizes the importance of understanding user emotions to enable early intervention and customize user experiences. It also highlights the future...

Codd’s Rules in DBMS

In this article at OpenGenus.org, we learn about Codd's Rules in Database Management Systems (DBMS).

TABLE OF CONTENTS:IntroductionKey Takeaways12 Codd's Rules in DBMS and their usecases.ConclusionIntroduction:

In the ever-evolving landscape of database management systems (DBMS), the principles laid out by E.F. Codd in his groundbreaking 1970 paper, "A Relational Model of Data for Large Shared Data Banks," continue to serve as the bedrock for relational databases. Codd's Rules, a set of g...

Cyber Security in Java Applications

In this OpenGenus article, we will look at the core concepts of Cyber Security, secure coding practices that must be implemented to ensure that our applications are secure. The illustrations are going to be done in Java.

Table of contents:

What is Cyber SecurityTypes of Cyber SecurityKey Components of Cyber SecuritySecure Coding PracticesAuthentication and AuthorizationSecure Communication Using HTTPSCryptographySummaryWhat is Cyber Security

An act of protecting computer systems applic...

Different Ways to Delete Elements in Unordered Map in C++ STL

In this OpenGenus article, we will look at the various ways of deleting elements in an unordered map in C++.

Table Of Contents-

Introduction to C++ STLBackground on unordered mapsVarious ways to delete an element in unordered map in C++Solving a few examplesConclusion

C++ Standard Template Library (STL) provides a powerful and versatile data structure known as unordered_map, which is an implementation of a hash table. It allows fast access to elements using keys. While inserting and access...

Exploring MySQL Connector for Python: A Beginner's Guide

Are you stepping into the world of Python and databases? If so, you're likely to encounter various libraries that facilitate the interaction between your Python scripts and databases. One such powerful tool is mysql-connector-python. In this guide at OpenGenus, we'll introduce you to the basics of this library, exploring its features and demonstrating its usage through a sample Python script.

Table of contents:

What is mysql-connector-python?InstallationExplanationA Simple Query ExampleConc...

Anagram Trees

The objective of this OpenGenus article is to explore the concept of utilizing anagram trees, a specialized tree structure, to efficiently organize and retrieve anagrams of words.

Table of Contents:What are anagram trees?Using anagram trees to retrieve anagramsImplementation through codeAnagram Trees OperationsReal life applicationsKey takeawaysQuestionsReferencesWhat are anagram trees?

Before defining what an anagram tree is, I think it's important to understand what the words 'anagr...

Producer Consumer problem using wait and notify in Java

Table of contents:

Introdution for Producer-ConsumerBasic outlineHow to implement in Java?SummaryIntrodution for Producer-Consumer

The Producer-Consumer problem is a classic example of a multi-process synchronization problem. The problem describes two processes, the producer and the consumer, who share a common, fixed-size buffer used as a queue. The producer generates data, puts it into the buffer, and starts again. At the same time, the consumer consumes the data (removes it from the buf...