Recommendation systems are used everywhere in the Internet today. From e-commerce sites to restaurants, hotels, tickets, events, and so on. are recommended to us everywhere. Have we ever asked ourselves how do they know what will be the best for us? How do they come up with this calculation of showing the items we might like? The answer is most sites use collaborative filtering (CF) to recommend something. Collaborative filtering is a process of making automatic prediction (filtering) about the interests of a user by analyzing other user's choices or preferences (collaborative). We will build a simple recommendation system using the Pearson correlation method where a similarity score between two people is calculated on the range of -1 to +1. If the similarity score is +1, then it means two people are a perfect match. If the similarity...
PHP 7 Data Structures and Algorithms
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PHP 7 Data Structures and Algorithms
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Overview of this book
PHP has always been the the go-to language for web based application development, but there are materials and resources you can refer to to see how it works. Data structures and algorithms help you to code and execute them effectively, cutting down on processing time significantly.
If you want to explore data structures and algorithms in a practical way with real-life projects, then this book is for you.
The book begins by introducing you to data structures and algorithms and how to solve a problem from beginning to end using them. Once you are well aware of the basics, it covers the core aspects like arrays, listed lists, stacks and queues. It will take you through several methods of finding efficient algorithms and show you which ones you should implement in each scenario. In addition to this, you will explore the possibilities of functional data structures using PHP and go through advanced algorithms and graphs as well as dynamic programming.
By the end, you will be confident enough to tackle both basic and advanced data structures, understand how they work, and know when to use them in your day-to-day work
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Current Title:
PHP 7 Data Structures and Algorithms
Table of Contents (14 chapters)
Preface
Free Chapter
Introduction to Data Structures and Algorithms
Understanding PHP Arrays
Using Linked Lists
Constructing Stacks and Queues
Applying Recursive Algorithms - Recursion
Understanding and Implementing Trees
Using Sorting Algorithms
Exploring Search Options
Putting Graphs into Action
Understanding and Using Heaps
Solving Problems with Advanced Techniques
PHP Built-In Support for Data Structures and Algorithms
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