Error detection and correction

Repeat-accumulate code

In computer science, repeat-accumulate codes (RA codes) are a low complexity class of error-correcting codes. They were devised so that their are easy to derive. RA codes were introduced by Divsalar et al. In an RA code, an of length is repeated times, scrambled by an interleaver of size , and then encoded by a rate 1 accumulator. The accumulator can be viewed as a truncated rate 1 recursive convolutional encoder with transfer function , but Divsalar et al. prefer to think of it as a block code whose input block and output block are related by the formula and for . The encoding time for RA codes is linear and their rate is . They are nonsystematic. (Wikipedia).

Video thumbnail

What is the alternate in sign sequence

๐Ÿ‘‰ Learn about sequences. A sequence is a list of numbers/values exhibiting a defined pattern. A number/value in a sequence is called a term of the sequence. There are many types of sequence, among which are: arithmetic and geometric sequence. An arithmetic sequence is a sequence in which

From playlist Sequences

Video thumbnail

Introduction to Sequences (Discrete Math)

This video introduces sequences for a discrete math class. mathispower4u.com

From playlist Sequences (Discrete Math)

Video thumbnail

Recurring Decimals | Number | Maths | FuseSchool

In this video we look at what recurring decimals are, and how to write them as fractions. Recurring decimals repeat forever. To save us having to write all of the repeating numbers, we can place a dot above the number or numbers that repeat. If all the decimal places donโ€™t repeat, just put

From playlist MATHS: Numbers

Video thumbnail

Math - Addition, Multiplication, Exponents, & Tetration

This mathematics video tutorial provides a basic introduction into addition, multiplication, exponents, and tetration. Addition can be thought of as repeat counting. Multiplication is repeat addition and exponentiation is repeat multiplication. Tetration is repeat exponentiation. This

From playlist New Calculus Video Playlist

Video thumbnail

Determine a Time Complexity of Code Using Big-O Notation: O(1), O(n), O(n^2)

This video explains how to determine the time complexity of given code. http://mathispower4u.com

From playlist Additional Topics: Generating Functions and Intro to Number Theory (Discrete Math)

Video thumbnail

Finding the rule of the sequence using multiplication and addition

๐Ÿ‘‰ Learn how to write the explicit formula for the nth term of an arithmetic sequence. A sequence is a list of numbers/values exhibiting a defined pattern. A number/value in a sequence is called a term of the sequence. An arithmetic sequence is a sequence in which each term of the sequence

From playlist Sequences

Video thumbnail

Little Man Computer: 3. Loops

Little Man Computer is a model of a computer that was created to help students of computer science learn about assembly language programming and the Von Neumann Architecture. In this computer science lesson, you will learn how to write looping code, that is, you will learn how to make a b

From playlist Computer Hardware and Architecture

Video thumbnail

Learn how to multiply a three digit decimal to a two digit decimal

๐Ÿ‘‰ You will learn how to multiply numbers in decimal form. We will work with decimals that are greater and less than one. When multiplying decimals it is important to line up the decimal point so that you keep the place values of the numbers. We will apply multi digit multiplication to f

From playlist How to multiply and divide decimals

Video thumbnail

Itertools in Python - Advanced Python 07 - Programming Tutorial

Itertools in Python - Advanced Python 07 - Programming Tutorial In this Python Advanced Tutorial, we will be learning about the itertools module in Python. The itertools module is a collection of tools for handling iterators. It offers some advanced tools like product(), permutations(), c

From playlist Advanced Python - Complete Course

Video thumbnail

Cancer Classification from Healthy DNA - Shuki Bruck - 6/7/2019

Changing Directions & Changing the World: Celebrating the Carver Mead New Adventures Fund. June 7, 2019 in Beckman Institute Auditorium at Caltech. The symposium features technical talks from Carver Mead New Adventures Fund recipients, alumni, and Carver Mead himself! Since 2014, this Fu

From playlist Carver Mead New Adventures Fund Symposium

Video thumbnail

CMPSC/Math 451. April 6, 2015. Taylor Series Methods for ODEs. Wen Shen

Wen Shen, Penn State University. Lectures are based on my book: "An Introduction to Numerical Computation", published by World Scientific, 2016. See promo video: https://youtu.be/MgS33HcgA_I

From playlist Numerical Computation spring 2015. Wen Shen. Penn State University.

Video thumbnail

Python: How Decorators Function

Have you ever seen those โ€œ@โ€ tags on top of Python functions and classes? Those are called decorators. Decorators, in their simplest form, wrap functions around functions. That might sound confusing at first, but itโ€™s actually pretty useful. A simple decorator could measure execution times

From playlist Python

Video thumbnail

Python Tutorial: Itertools Module - Iterator Functions for Efficient Looping

In this Python Programming Tutorial, we will be learning about the itertools module. The itertools module is a collection of functions that allows us to work with iterators in an efficient way. Depending on your problem, this can save you a lot of memory and also a lot of work. Let's get s

From playlist Python Tutorials

Video thumbnail

Algorithm Intuition

Data structure intuition is something that develops naturally for most software developers. In all languages, we rely heavily on standard containers and collections. Need fast insertion/lookup? Hashmap. Need a sorted data structure that stores unique values? Set. Duplicate values? Multiset

From playlist Software Development

Video thumbnail

Python Itertools | Itertools in Python | Python Tutorial for Beginners | Edureka

๐Ÿ”ฅEdureka Python Certification Training: https://www.edureka.co/python-programming-certification-training This Edureka video on Python Itertools is a part of Python Tutorial for Beginners which will help you understand the Python itertools module along with various tools to create the Iter

From playlist Python Programming Tutorials | Edureka

Video thumbnail

Fastest way to multiply by five

๐Ÿ‘‰ You will learn how to multiply integers from one digit to multiple digits. When multiplying it is important to understand that multiplication is just repeated addition. However with multi-digit numbers we will follow a step by step process to find the product of the two numbers. ๐Ÿ‘SUB

From playlist Integer Operations

Video thumbnail

3B. DNA 1 : Genome Sequencing, Polymorphisms, Populations, Statistics, Pharmacogenomics...

MIT HST.508 Genomics and Computational Biology, Fall 2002 Instructor: George Church View the complete course: https://ocw.mit.edu/courses/hst-508-genomics-and-computational-biology-fall-2002/ YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61gaHWysmlYNeGsuUI8y5GV We're

From playlist HST.508 Genomics and Computational Biology, Fall 2002

Related pages