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45 posts tagged with algorithms.

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## Sapiens 2.0: Homo Deus?

In his follow-up to

*Sapiens*, Yuval Noah Harari envisions what a 'useless class' of humans might look like as AI advances and spreads - "I'm aware that these kinds of forecasts have been around for at least 200 years, from the beginning of the Industrial Revolution, and they never came true so far. It's basically the boy who cried wolf, but in the original story of the boy who cried wolf, in the end, the wolf actually comes, and I think that is true this time." [more inside]## I Read the News Today, Oh Boy

Facebook workers say 'trending news' section is manipulated

*The revelations undermine any presumption of Facebook as a neutral pipeline for news, or the trending news module as an algorithmically-driven list of what people are actually talking about.*## WORLD OF TOMORROW

World After Capital by Albert Wenger [Work in Progress; GitHub; GitBook; PDF; FAQ] - "Technological progress has shifted scarcity for humanity. When we were foragers, food was scarce. During the agrarian age, it was land. Following the industrial revolution, capital became scarce. With digital technologies scarcity is shifting from capital to attention.

*World After Capital*suggests ways to expand economic, informational and psychological freedom to go from an industrial to a knowledge society." (previously)## Hangry science

When people get hungry thoughts of food can influence their work, especially in mathematics and related fields. Particularly influential foods (and related things) include cake, pie, pizza, ham sandwiches, more sandwiches, pancakes, spaghetti, cocktails, Chinese restaurants, Indian buffets, sausages, donuts, layer cake, blancmange pudding and potatoes. But in the end, there's no free lunch.

## Datasets over algorithms

"Perhaps the most important news of our day is that datasets — not algorithms — might be the key limiting factor to development of human-level artificial intelligence". Alexander Wissner-Gross responding to Edge. Found here, with some links and a table.

## I'm a graph just like you

*[In late 2015], László Babai, of the University of Chicago, announced that he had come up with a new algorithm for the “graph isomorphism” problem, one of the most tantalizing mysteries in computer science.*

## As if we all have the same online experience

One day Harvard professor Latanya Sweeney googled herself with a reporter friend sitting next to her. An ad popped up inquiring about her arrest record. She had never been arrested. "It must be because you have one of those Black Names!" the friend said. "That's impossible," she replied, "Computers can't be racist." But then she started doing research. [more inside]

## Desire Modification in the Attention Economy

The Future of (Post)Capitalism - "Paul Mason shows how, from the ashes of the recent financial crisis, we have the chance to create a more socially just and sustainable global economy." (previously; via) [more inside]

## Algorithms, Accountability, #algacc

"Algorithms are producing profiles of you. What do they say? You probably don’t have the right to know." Frank Pasquale, for Aeon: "Digital Star Chamber." [more inside]

## Equations can't be racist

What does it mean for algorithms to be fair? Our lives are increasingly influenced by opaque algorithms. Thoughts on how our existing laws are handling this new environment.

## Time with class! Let's Count!

I want to demonstrate how amazing combinatorial explosion is! Please don't stop me. An animation about numbers that get large. It has a happy ending and possibly even a moral. [more inside]

## China announces it is scoring its citizens using big data

China rates its own citizens - including online behaviour: "The Chinese government is currently implementing a nationwide electronic system, called the Social Credit System, attributing to each of its 1,3 billion citizens a score for his or her behavior. The system will be based on various criteria, ranging from financial credibility and criminal record to social media behavior. From 2020 onwards each adult citizen should, besides his identity card, have such a credit code." [more inside]

## The Algorithmic Self: On Being Made by the Numbers

"The first step toward protecting the self in an age of algorithmic manipulation is to recognize such manipulation as a problem." Frank Pasquale, writing for The Hedgehog Review, grapples with "The Algorithmic Self." [more inside]

## Looking at Isaac Asimov's "Foundation" series.

Isaac Asimov's Foundation: The little idea that became science fiction's biggest series [SPOILERS] (

*io9*)On the planet Terminus, a group of academics struggles to survive as the Galactic Empire crumbles. With no weapons, all they can rely on are the predictions of a dead genius named Hari Seldon. That's right — it's time to discuss Isaac Asimov's[more inside]!Foundation

Welcome to Foundation Week, a Blogging the Hugos special event. In 1983, Isaac Asimov won the Hugo Award for Best Novel for Foundation's Edge, in which he revisited his groundbreaking Foundation mythos for the first time in over thirty years. Because the Foundation series is such classic, quintessential, and beloved science fiction — the original stories won their own unique Hugo for Best All-Time Series in 1966, and influenced artists from Douglas Adams to George Lucas — Josh Wimmer and Alasdair Wilkins will be discussing each of the seven books between today and Sunday. We begin withFoundation, published in 1951.

## I Can Tell By The Pixels

Visualizing Algorithms shows you how computer algorithms can be represented visually, leading to better understanding of how the algorithms work:

"Have you ever implemented an algorithm based on formal description? It can be hard! Being able to see what your code is doing can boost productivity. Visualization does not supplant the need for tests, but tests are useful primarily for detecting failure and not explaining it. Visualization can also discover unexpected behavior in your implementation, even when the output looks correct."

"Have you ever implemented an algorithm based on formal description? It can be hard! Being able to see what your code is doing can boost productivity. Visualization does not supplant the need for tests, but tests are useful primarily for detecting failure and not explaining it. Visualization can also discover unexpected behavior in your implementation, even when the output looks correct."

## prioritize and continue to strengthen friendship with Joe and Dennis

MetaFilter is well acquainted with numbers stations (previously with previouslies inside of that). Well, they may just have migrated to YouTube. [more inside]

## A SAT Attack on the Erdos Discrepancy Conjecture

Computers are providing solutions to math problems that we can't check - "A computer has solved the longstanding Erdős discrepancy problem! Trouble is, we have no idea what it's talking about — because the solution, which is as long as all of Wikipedia's pages combined, is far too voluminous for us puny humans to confirm." (via; previously ;)

## Violent Thrillers About Cats for Ages 8 to 10

*If you use Netflix, you've probably wondered about the specific genres that it suggests to you. Some of them just seem so specific that it's absurd. Emotional Fight-the-System Documentaries? Period Pieces About Royalty Based on Real Life? Foreign Satanic Stories from the 1980s? ... Through a combination of elbow grease and spam-level repetition, we discovered that Netflix possesses not several hundred genres, or even several thousand, but 76,897 unique ways to describe types of movies.*

## The Sound of Sorting

## Predatory algorithms & Ultrafast Extreme Events

## Mesmerizing visualizations of genetic algorithms

Genetic algorithms are useful for solving all kinds of problems and their implementations can be quite mesmerizing to watch.

**Re-producing**Mona Lisa, a human face or bull cave painting.**Playing**Super Mario, Tetris and more Tetris.**Simulating**a soccer team, fishes, ant colony or Santa's flight path. A documentary about using**genetic algorithms in design**, e.g. deciding the optimal antenna placement on a Humvee, creating search and destroy behavior for UAVs and designing more efficient wind turbine blades. Should probably**learn how to**stand and jump and stand again before driving.## Computerized Math, Formal Proofs and Alternative Logic

Using computer systems for doing mathematical proofs - "With the proliferation of computer-assisted proofs that are all but impossible to check by hand, Hales thinks computers must become the judge." [more inside]

## What if Skynet just wanted to piss us off?

Keep Calm and Understand the Process. The advent of algorithm-driven sales and product-on-demand delivery systems (think Cafepress, for one) can have some unexpected results when the output is not checked carefully enough. [more inside]

## "The data that we actually used."

Rosalind.info is a website with bioinformatics problems inspired by Project Euler (previously, previouslier.) [more inside]

## The Genius of Nature

Bees and a species of bird can solve the traveling salesman problem "It’s Saturday; you’ve got errands to run. Your spouse wants bread from the bakery, you need to pick up the dry cleaning, your kids need new shoes, and you’ve got a dentist appointment. None of this is any fun, so you might as well do it as quickly as possible by calculating the fastest and most efficient route that takes you to each stop... Menger and Whitney both discovered that the number of possible routes between stops increases exponentially with each additional destination. In a typical model, for instance, three stops yield six routes, while eight stops yield 40,320... By setting up five artificial flowers in a pentagon shape and tracking each bee’s path, researchers discovered that every bee optimized its route, visiting the highest-reward flowers in the shortest possible amount of time." [more inside]

## The Failure of Judges and the Rise of Regulators

The Control Revolution And Its Discontents - "the long process of algorithmisation over the last 150 years has also, wherever possible, replaced implicit rules/contracts and principal-agent relationships with explicit processes and rules."

## “meaningful adjacencies”

“It was a computer-science problem, but it was also a big, crazy typography problem,” An algorithm for the names at the 9/11 memorial.

## Nifty Audio Projects

Nifty audio projects from Paris Smaragdis, including fascinating method of extracting individual audio samples (say a guitar solo) from a mix by humming the part. [6.4 mb mp4] [via AskMe]

## Exact String Matching Algorithms

Exact String Matching Algorithms - Source code for Boyer-Moore, Horspool and other string-matching algorithms, along with visualizations of their operation

## Delightful Puzzles

A gathering of puzzles including many old chestnuts but also perhaps one or two you haven't met before.

## Musical sorting algorithms

## High Frequency Trading

## Cinematch++

Over three years later, has the Netflix Prize been won?

*Today our team submitted our solution to the Netflix Prize, resulting in a score of .8558, which corresponds to an improvement over Netflix Cinematch algorithm of 10.05%. This is the first submission in the competition to break the 10% barrier and sets off a 30 day period where all competitors are invited to submit their best and final solutions.*(Previously.) [more inside]## What is the largest prime factor of the sum of the favorited comments from all fibonacci-numbered MeFites?

"Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems."

Started in 2001 as a sub-section of Maths Challenge, it has since grown large enough to become its own entity. It now boasts over 200 problems, many of them insanely difficult. [more inside]

Started in 2001 as a sub-section of Maths Challenge, it has since grown large enough to become its own entity. It now boasts over 200 problems, many of them insanely difficult. [more inside]

## Big book of algorithms

If you could use a great big free handbook of discrete math and algorithms, Jörg Arndt's fxtbook wants to be your friend. Plain text table of contents to whet your appetite.

## "Extracting Beauty From Chaos"

Skhoinarion uses his own custom software to make mathematical art, ranging from the architectural to the strikingly natural.
His animations feature digital and digitally-manipulated analog content and are also quite remarkable.

## Gerrymandered

The shortest-splitline algorithm for drawing N congressional districts. You can seee examples of their unbiased district-drawing algorithm in action compared with the gerrymandered districts drawn by politicians.

## Media and Algorithms and Home Made Music.

Screenvader. Media and algorithms and home made music. [flash]

## Math Porn!

Those are dirty numbers!! "The images in this room are created entirely from mathematical algorithms. If you find them offensive in any way, all I can say is that beauty (or obscenity) is in this case most certainly in the eye of the beholder." (via)

## Algorhythms

## Intelligent Design by Trial and Error

A more efficient microbe genome. A more efficient sorting algorithm. A more efficient keyboard layout.

## Euler? I never even met her!

Project Euler is a running contest of programming challenges to hone your algorithm skills.

*"Each problem is designed according to a 'one-minute rule', which means that although it may take several hours to design a successful algorithm with more difficult problems, an efficient implementation will allow a solution to be obtained on a modestly powered computer in less than one minute."*## A sort of vagabonds, rascals, and runaways

## MathPorn

## Israelis (who else?) prepare to bring a new life into the world.

Israelis (who else?) prepare to bring a new life into the world. One that will hopefully pass the Turing test.

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