Understanding Normalized Discounted Cumulative Gain (NDCG)
In the realm of information retrieval and recommendation systems, the evaluation of the quality of ranked lists is a critical task. Normalized Discounted Cumulative Gain (NDCG) is a widely-used metric for measuring the effectiveness of such ranked lists. NDCG is particularly valuable in scenarios where you want to ensure that the most relevant items are […]
Understanding Mean Average Precision (MAP)
In the field of information retrieval and machine learning, evaluating the performance of ranking algorithms is crucial. Mean Average Precision (MAP) is a widely used metric for assessing the quality of ranking systems, particularly in tasks such as information retrieval, recommendation systems, and object detection. This article will delve into the concept of MAP, how […]
How Facebook encodes your videos
In today’s digital age, sharing videos has become an integral part of our online communication. Facebook, as one of the world’s leading social media platforms, allows users to upload and share videos seamlessly. However, what many users might not realize is the complex process that takes place behind the scenes to make these videos accessible […]
Probability: Joint vs. Marginal vs. Conditional
Probability theory is a fundamental branch of mathematics that plays a crucial role in various fields, from statistics and machine learning to finance and science. Understanding the different aspects of probability is essential for making informed decisions and solving complex problems. In this article, we will explore three important concepts in probability: Joint Probability, Marginal […]
Understanding Infix, Prefix, and Postfix Expressions
Expressions are fundamental in mathematics and computer science, serving as a way to represent calculations or operations. In the context of programming, expressions are often used to manipulate data and make decisions. In this article, we’ll explore three different notations for expressing mathematical and logical operations: infix, prefix, and postfix. Infix Expressions Infix notation is […]
Understanding 2-Way and K-Way Merging Algorithms
Merging algorithms play a crucial role in various computer science applications, such as sorting and data manipulation. Two commonly used merging techniques are 2-way merging and K-way merging. These algorithms are fundamental for combining sorted data sets efficiently and are widely employed in database systems, external sorting, and various data processing tasks. In this article, […]
How to Measure Sortedness?
Sorting is a fundamental operation in computer science, and the concept of “sortedness” is crucial for understanding the degree to which a sequence of elements is ordered. Whether you are working with data analysis, algorithms, or database management, measuring sortedness can provide valuable insights into the efficiency and organization of your data. In this article, […]
Difference Between BFS and Dijkstra’s Algorithms
When it comes to solving problems in computer science and graph theory, two commonly used algorithms are Breadth-First Search (BFS) and Dijkstra’s algorithm. While both algorithms are used to traverse or find paths in graphs, they serve different purposes and have distinct characteristics. In this article, we’ll explore the key differences between BFS and Dijkstra’s […]
Dijkstra vs. A* – Pathfinding
Pathfinding is a fundamental problem in computer science and artificial intelligence, with applications in a wide range of fields, from gaming and robotics to network routing and geographic information systems. Two of the most popular pathfinding algorithms are Dijkstra’s algorithm and the A* algorithm. In this article, we will compare and contrast these two algorithms, […]
Disk Scheduling: LOOK and CLOOK Algorithms
Disk scheduling algorithms play a crucial role in optimizing the efficiency of disk I/O operations. When multiple processes are vying for access to a hard disk drive, a well-designed disk scheduling algorithm ensures that data is read or written in an organized and efficient manner. Among the many algorithms available, the LOOK and CLOOK algorithms […]
